Northern Petroleum Plc (AIM:NOP), the independent oil and gas exploration, development and production company announces an operational update on its Netherlands, Guyane, Italy and UK assets and a Directorate change.

The Netherlands
At the Brakel gas field the final completion phase of the development has been reached.  System integrity checks and pre-commissioning activities are ongoing with the target of achieving first production before the end of September 2010.   

Northern has received all approvals required for the development of the Wijk en Aalburg field. The site development activities were started with the commencement of laying foundations for the process equipment on August 23^rd.  

These two fields have the potential to increase production inexcess of 1100 boepd net to Northern.

At the Waalwijk gas field Northern is modifying the compression configuration during a planned shutdown in September to maintain production levels and extend field life.

The Geesbrug single well gas field has now delivered 50 million nm³ (Northern 45%) since coming on production in January 2010. Production from the Grolloo gas field has been temporarily suspended for a mechanical workover prior to recommencing production.

Progress towards the granting of a loan facility to enable the faster development of the Netherlands reserves is being progressed as production revenues increase from the additional fields being brought into production.

Guyane
Following Tullow Oil’s Interim Results announcement on 25^th August, Northern would like to note its comments in respect of the exploration acreage which it shares with Tullow in Guyane:

Tullow, after a successful farm-down process to Shell (33%) and Total (25%) in 2009, has retained an interest of 39.5% in the 35,000 sq km Guyane Maritime licence offshore French Guiana. Northpet Investments Limited holds a 2.5% interest, in which Northern owns a 50% equity interest.  A number of Jubilee-type leads have been identified in the south-eastern part of the block and the acquisition of a large 3D seismic programme (2,500 sq km) was completed in early February 2010. Processing and interpretation of this dataset is ongoing and planning for the first well on the material Zaedyus prospect is continuing, with a target spud date of February 2011.

Italy
Onshore within the Longastrino permit the La Tosca prospect defined on 3D seismic data and with mean gross prospective resources of 44 Bcf and an upside of 85 bcf is being progressed for drilling. Farmout negotiations are ongoing to bring additional partners into the permit for the drilling.

The 3D seismic data acquired over the significant prospects in the West of Sicily Thrust and Fold Belt is nearing completion of initial processing and work will then commence with interpretation to select a drilling location.

The Company took the decision to seek suspension of the decrees on permits C.R146.NP and C.R147.NP following the current legislative uncertainty regarding offshore operations.  These permits are being reviewed by potential farmin partners. ADX Energy is drilling the Lambouka-1 well in Tunisian waters close to C.R147.NP and the well is being followed closely as the expected target reservoirs are equivalent although the structural setting of the prospect being drilled is different to the prospects mapped on this permit.

The company continues to seek potential partners in those permits held on a 100% basis and its track record with farmouts is good. Of the ten fully awarded offshore licences six have been farmed out to Shell Italia.

United Kingdom
Due to greater than anticipated interest and a late entrant to the sales process for the UK assets and extension into a holiday period for much of the industry the closing date for offers has been extended and will be re-established after consultation with the interested parties. The UK assets under offer include 6.82 million barrels of Proven and Probable oil reserves.

As the Operator, NOP is finalising the drilling programmes for two wells and activities will not be held up for the sales process. The construction of both the Havant and Markwells Wood well sites are now completed. Negotiations are progressing to secure a surface location from which the Hedge End well can be drilled. Providence Resources as Operator of PEDL 233 (NOP: 50%) has commenced the well planning to drill the Baxters Copse well from its Singleton oilfield facilities.

An RPS EnergyReport attributes to PEDL 233 gross 2P and 3P reserves of 5.36 and 15.06 million stock tank barrels respectively of undeveloped reserves (50% Northern), significantly larger than previous estimates. There are also plans to further evaluate the other prospects within PEDL 233.

Directorate Change
Nigel Wright, Finance Director, has ceased to be a director of the Company and is no longer in its employ. Chris Foss, Executive Director, Legal and Corporate Affairs will re-assume those responsibilities which he held until April 2010. There is unlikely to be any disruption to the Company’s business. 

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Notes to Editors:

About Northern
Northern Petroleum Plc is an independent oil and gas Exploration Company quoted on the AIM market in London focused on the European Union and nearby areas.  Comprehensive information on Northern and its oil and gas operations, including all press releases, annual reports and interim reports are available from Northern’s website at www.northpet.com.

Northern (AIM:NOP), is pleased to announce that it has today launched an updated and upgraded Company website which can be viewed at: www.northpet.com.

The site has been redesigned to make users' experience as clear and logical as possible. The new design upgrade uses clear information hierarchies and a design grid with clean typography that produces a cleaner and more contemporary website.
 
Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939   
 
Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Tel: +44 (0) 20 7831 3113
Billy Clegg / Edward Westropp

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons


Notes to Editors:
About Northern
Northern Petroleum Plc is independent oil and gas Exploration Company quoted on the AIM market in London focused on the European Union and nearby areas.

Comprehensive information on Northern and its oil and gas operations, including all press releases, annual reports and interim reports are available from Northern's website at www.northpet.com.

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 30 July 2010 the Company's issued share capital consists of 91,887,701 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 91,887,701.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Company Secretary
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

The Company has been informed today that Richard Latham, Chairman of Northern, has this morning transferred 42,160 ordinary shares of the Company from his personal holdings to his SIPP at a price of 95p per share, being the mid market price at start of business today. This transfer does not alter Mr Latham’s total beneficial shareholding of 962,477 ordinary shares, which represents 1.05 per cent of the issued share capital of the Company.

In addition the Company has been advised today that Chris Foss, Director of Legal & Corporate Affairs, this afternoon transferred 43,440 ordinary shares from his personal holdings to his SIPP at a price of 95p per share, being the mid market price at start of business today. Following this transaction Mr Foss’ beneficial shareholding remains at 102,052 ordinary shares, which represents 0.11 per cent of the issued share capital of the Company.

Following these transactions, the Directors’ total beneficial shareholdings remain at 2,901,635 ordinary shares, which represents 3.16 per cent of the enlarged issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Richard Latham, Chairman
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

The Company was informed yesterday that 10,000 ordinary shares of the Company were purchased on 8 July by Elizabeth Wright, the wife of Nigel Wright, the Company’s Finance Director, at a price of 94.5p per share. This purchase brings Mr Wright’s beneficial shareholding to 10,000 ordinary shares, representing 0.01 per cent of the issued share capital of the Company.

As a result of this transaction the Directors’ total beneficial shareholdings are now 2,901,635 ordinary shares, which represents 3.16 per cent of the enlarged issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs
Nigel Wright, Finance Director
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

The Company announces that, following the exercise of warrants yesterday at 67 pence per share to subscribe for ordinary shares by an employee, it has made an application pursuant to the authority granted on 30 June 2008 for the admission of 50,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 91,887,701.

It is expected that dealings in the said shares will commence on 13 July 2010.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hiull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Preliminary examination by the directors of Northern Petroleum Plc (AIM:NOP) suggests that proposals as detailed in a posting on the official Ministry of the Environment web-site, attributed to Environment Minister Stefania Prestigiacomo, do not affect Northern’s reported reserves in Italy or the exploration prospectivity of the Southern Adriatic, and has limited or no effect upon most other areas including the West of Sicily Thrust Belt.

The reported initiative to change legislation covers oil activities within five nautical miles of the coastline and hydrocarbon activities within twelve nautical miles of a marine or coastal protected area. The majority of Northern’s permit areas are further offshore.

The specifics of the immediate preliminary review, covering the effects upon the Group’s activities offshore Italy are outlined below.

Southern Adriatic (2 permits, 3 preliminary awards and 4 applications)

The effect is extremely minor in aerial extent and has no effect on established reserves or exploration prospectivity.

West of Sicily Thrust Belt (6 permits, 4 preliminary awards and 1 application)

For the six permit area there is a minor aerial effect upon only one of the six blocks, being the eastern part of G.R20.NP. Further study is required before an assurance can be given to shareholders that it has no effect on any prospects being developed.

The proposals could have effect upon a significant part of two of four applications in the area (d21G.R-.NP & d25G.R-.NP). A more detailed examination is required.

Sicily Channel (2 permits, 2 preliminary awards and 3 applications)

There would be no effect upon permit C.R146.NP and the adjacent application d351C.R-.NP, which contain the very large Vesta prospect.

C.R147.NP, north of Pantelleria Island, would be affected but the initial review concluded that two prospects remain unaffected and only a partial effect applies to three further prospects.

Closer to the coast of Sicily, the Company has four applications. One, d30G.R-.NP, would be entirely unaffected. For another, d358C.R-.EL, on Northern’s interpretation it would appear that the area of greatest interest would not be materially affected and in d29G.R-.NP, it appears that sufficient of the structural lead remains unaffected.

It is clear that d347C.R-.NP will require more detailed review before offering comment.

Ionian Sea (3 preliminary awards and 2 applications)

The greatest effect would be to interests in this area. If introduced the new proposals would rule out most of the area of two preliminary awards d59F.R-.NP & d64F.R-.NP, whereas d77F.R-.NP is entirely unaffected and the effects upon d63F.R-.NP and d75F.R-.NP are considered minor. It may be that upon further consideration a reaction to an oil well blow-out and resultant spill should not apply to gas in the same way.

The Directors advise that previous discussions with The Ministry of Industry and Economic Development had mainly concerned an agreement for a 3 nautical mile limitation, which was accommodated and had little or no effect on the Company’s operations. There has been no prior consultation with the Ministry of Environment on this initiative.

“I believe we are not badly affected save in the Ionian Sea, not our most significant core area. We have always conducted ourselves with due consideration to marine parks, sensitive coastal areas and the environment in general. It is not surprising that the Italian Government would have some reaction to events in the Gulf of Mexico and now we can move forward with their views having been expressed.” commented Derek Musgrove, Managing Director of Northern.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr. Graham Heard CGeol. FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Director of Legal & Corporate Affairs
Graham Heard, Exploration & Technical Director

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

The Company announces that, following the exercise of warrants at 68.5 pence per share to subscribe for ordinary shares by an employee, it has made an application pursuant to the authority granted on 30 June 2008 for the admission of 25,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 91,837,701.

It is expected that dealings in the said shares will commence on 8 July 2010.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc

2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: (  X  )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (  X  )
   Other (please specify): (   )

3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc

4. Full name of shareholder(s) (if different from 3.):
    The Royal Bank of Scotland N.V.

5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   30/06/10

6. Date on which issuer notified:
   01/07/10

7. Threshold(s) that is/are crossed or reached:
   6%
       

8. Notified details:
   ……………..

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   RBS Holdings N.V.
   The Royal Bank of Scotland N.V.

Proxy Voting:

10. Name of the proxy holder:
    ……………..

11. Number of voting rights proxy holder will cease to hold:
    ……………..

12. Date on which proxy holder will cease to hold voting rights:
    ……………..

13. Additional information:
    This Notification is based upon the Voting Rights figure of 91,812,701 obtained from your Regulatory Announcement dated 30th June 2010.

14. Contact name:
    Chris Foss, Director of Legal & Corporate Affairs

15. Contact telephone number:
    020 7469 2900

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc

2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: (    )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (X) Reduction in shareholding percentage following Admission of Placing shares on 29 June 2010

3. Full name of person(s) subject to the notification obligation:
   Barry James Lonsdale

4. Full name of shareholder(s) (if different from 3.):
    

5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   29/06/10

6. Date on which issuer notified:
   30/06/10

7. Threshold(s) that is/are crossed or reached:
   7%
       

8. Notified details:
   ……………..

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..

11. Number of voting rights proxy holder will cease to hold:
    ……………..

12. Date on which proxy holder will cease to hold voting rights:
    ……………..

13. Additional information:
    Based on total shares in issue of 91,812,701 as per Total Voting Rights announcement dated 30 June 2010.

14. Contact name:
    Chris Foss, Director of Legal & Corporate Affairs

15. Contact telephone number:
    020 7469 2900

Northern Petroleum Plc (AIM:NOP), the independent oil and gas exploration, development and production company announces that at the Annual General Meeting (“AGM”) held today, the Chairman of the meeting, Richard Latham will make the following statement:

“We have initiated a change of strategy to increase activity and greater progress in realising the potential of our assets. An emphasis is placed upon drilling prospects in The Netherlands and undertaking a large offshore seismic survey in Italy to de-risk the very high potential value of the licences, making them more attractive for major oil industry players to farmin and thereby bringing forward the drilling activities. The Company will also participate alongside Tullow, Shell and Total in drilling of one or more wells in an exploration licence offshore Guyane (Northern:1.25% interest).

“Northern has implemented a three phased programme to increase funds for these initiatives:

• A £10 million placing of new shares;

• A Netherlands production based loan facility ring fenced to the country; and

• The sale of UK assets, including 6.82 million barrels of Proven and probable oil reserves, now considered non-core.

“Northern has instructed Envoi Limited to realise the value of its non-core UK assets. In the meantime, three wells are being planned in the UK, with construction of the Havant and Markwells Wood well sites now completed and ready to drill.

“Discussions have been in progress towards the granting of a loan facility to enable the faster development of The Netherlands reserves based upon the security of the local asset base and new production revenues. We are optimistic as to a successful conclusion. In June this year, we successfully placed of 11,764,706 new Ordinary Shares of 5 pence each at 85p per new Ordinary Share raising £10 million of gross proceeds.

“In summary your Company is well capitalised with approximately EUR23 million of cash, and has the prospect of a Netherlands loan facility and potential funds from the sale of UK assets.

“With our large asset base with over 100 million barrels of independently assessed reserves and new production on-stream in The Netherlands, I would like every shareholder to leave this meeting knowing that their Company has embarked upon an exciting new phase of accelerated growth.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr. Graham Heard CGeol. FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Director of Legal & Corporate Affairs
Graham Heard, Exploration & Technical Director
Nigel Wright, Finance Director
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 30 June 2010 the Company's issued share capital consists of 91,812,701 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 91,812,701.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Company Secretary
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc

2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )

3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc

4. Full name of shareholder(s) (if different from 3.):
   ABN AMRO Bank N.V.

5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   24/06/10

6. Date on which issuer notified:
   25/06/10

7. Threshold(s) that is/are crossed or reached:
   6%
       

8. Notified details:
   ……………..

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   ABN AMRO Holding N.V.
   ABN AMRO Bank N.V.

Proxy Voting:

10. Name of the proxy holder:
    Bluehone Investors LLP

11. Number of voting rights proxy holder will cease to hold:
    ……………..

12. Date on which proxy holder will cease to hold voting rights:
    ……………..

13. Additional information:
    This Notification is based upon the Voting Rights figure of 79,997,995 obtained from your Regulatory Announcement dated 31st March 2010.

14. Contact name:
    Chris Foss, Director of Legal & Corporate Affairs

15. Contact telephone number:
    020 7469 2900

The Company announces that, following the exercise of warrants at 67 pence per share to subscribe for ordinary shares by a third party consultant, it has made an application pursuant to the authority granted on 30 June 2008 for the admission of 50,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 91,812,701.

It is expected that dealings in the said shares will commence on 29 June 2010.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Company Secretary
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Northern Petroleum (AIM: NOP) announces that it has initiated a revised growth strategy to accelerate its activity level in the development of its large asset position which is predominantly in Italy and The Netherlands. This acceleration of activities requires access to additional funds.

At 23 June 2010 the Company had approximately EUR13.3 million of cash in the bank and is generating revenues from its existing production. In order to accelerate development and capitalise on its asset position, the Company has decided to raise new funds from three sources:

• Realisation of value from the sale of the non-core UK assets;

• Reserve based debt finance secured against production in the Netherlands; and

• Placing of a modest amount of new equity, £10 million.

The Company has instructed Envoi Limited to handle the process of selling its non-core UK assets. Envoi Limited is a UK company which provides specialist marketing, acquisition and advisory services to the international upstream oil and gas industry.

Northern’s focus over a number of years has been on the low cost acquisition of a large number of licence positions in selected low risk countries, successfully acquiring discoveries, other reserves and high impact exploration prospects. Northern entered the Netherlands in 2004 to acquire licences with undeveloped discoveries. Northern has had significant success with the Company now having net Proven and Probable reserves in The Netherlands of 42.7 million barrels of oil equivalent (boe), with four gas fields in production and two gas and two oil fields in development. In Italy a strategy of identifying and acquiring key licences in prospective core areas was successfully pursued, ahead of the majority of other oil companies. Currently, Northern has 53.2 million boe of net Probable oil reserves from 32 Italian licences and applications beyond contest. In the UK, since 2003, Northern has accumulated total net Proven and Probable reserves of 7.0 million boe. The UK and Netherlands reserves have been independently assessed by RPS Energy and the Italian reserves independently assessed by Blackwatch Petroleum Services.

As stated in the Company’s Annual Report and Accounts for the year ended 31 December 2009, “the Board remains keen to have in its armoury some debt facilities to both provide flexibility for growing the business and for tax efficiency, but the finance must be at an appropriate cost. With additional fields now brought into production, further de-risking the Group’s asset base, good progress is being made on a debt facility that fits the Group’s requirements. We look forward to reporting to shareholders on this soon”.

The Company will also continue to seek farm-in partners for selected Italian assets where it deems such transactions to be in the best interest of shareholders.

THE PLACING

In order to finance the accelerated growth strategy, Northern is pleased to announce the Placing of 11,764,706 new Ordinary Shares of 5 pence each at 85p per new Ordinary Share (the “Placing Price”) to raise £10.0 million (the “Placing”) gross. The Placing, with both existing and new institutional investors, has been made pursuant to the authority granted by shareholders on 22 July 2009. The Placing Price of 85p represents a discount of 8.6% to the closing mid-market price of 93p on 24 June 2010.  Application will be made for the admission of the new Ordinary Shares to AIM and it is expected that such admission will take place on 29 June 2010.

The Company has existing authorities in place to permit the issue of these shares for cash on a non pre-emptive basis. The issue of the Ordinary Shares pursuant to the Placing therefore does not require additional shareholder approvals. The Placing is conditional, inter alia, on admission. On admission, the new Ordinary Shares will rank pari passu in all respects with the existing ordinary shares in Northern. The Placing was not underwritten.

The Placing has only been made to persons falling within article 19 and article 49 of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 who are also qualified investors for the purposes of section 86 of FSMA and no other person may now participate in the Placing or rely on any communication relating to it.

The net proceeds of the Placing will be predominantly used to accelerate the development of the existing pipeline of projects the Company has in the Netherlands and Italy. The projects include enhancing production rates from existing producing assets, the development of existing discoveries to increase production and the drilling of exploration prospects to maintain and increase reserves. Funds will also be used to acquire seismic data in Italy to improve the farm out terms and potential of the Italian assets in order to bring them closer to drilling. The Company will also participate in the exploration of a licence in Guyane operated by Tullow Oil Plc.

Cenkos Securities acted for the Company in this successful placing and its efforts are appreciated by the Company.

Chris Foss, Director of Legal and Corporate Affairs, commented:

“We have outlined our accelerated growth strategy and the Board’s plans to finance it. We are pleased to have had a positive reception to our development plans from existing and new institutional shareholders. The strategy to deliver greater growth is clear, as is the case for acceleration across a wider portfolio of projects. Northern will now move forward to take advantage of the very significant opportunities we have created in the last few years. We look forward to implementation of the strategy.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr. Graham Heard CGeol. FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Northern Petroleum Plc (AIM:NOP) announces that the Company’s Annual Report and Accounts for the year ended 31 December 2009 and Notice of AGM were yesterday distributed to shareholders and remain available online at the Company's website www.northpet.com.

The AGM of the Company will be held at Armourers Hall, 81 Coleman Street, London EC2R 5BJ on 30 June 2010 at 10.00am (BST).

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Company Secretary
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Northern is pleased to announce that the 2009 Annual Report, incorporating the Notice of Annual General Meeting (“AGM”), is now available on the Company’s website (http://www.northpet.com) and will shortly be posted to shareholders.

The text of the AGM Notice is reproduced in full below:

NOTICE IS HEREBY GIVEN that the Annual General Meeting of the Company will be held at Armourers Hall, 81 Coleman Street, London EC2R 5BJ on 30 June 2010 at 10.00am for the following purposes:

To consider and, if thought fit, pass the following resolutions to be proposed as Ordinary Resolutions:

1. To receive the report of the Directors and the audited accounts for the year ended 31 December 2009.

2. To re-appoint KPMG Audit Plc as auditors and to authorise the Directors to fix their remuneration.

3. To re-elect R H R Latham (who retires from office in accordance with Article 108 of the Company's Articles) as a Director of the Company.

4. To elect N J Wright (who retires from office in accordance with Article 113 of the Company's Articles) as a Director of the Company.

5a) To authorise the Directors, pursuant to and in accordance with section 551 of the Companies Act 2006 (the “Act”) to allot exercise all powers of the Company to allot ordinary shares in the capital of the Company and grant rights to subscribe for or convert any security into ordinary shares up to a maximum aggregate nominal value of £2,000,000 (being approximately 50% of the Company’s issued share capital as at the date of this notice), provided that such authority shall expire at the conclusion of the next Annual General Meeting of the Company, except that the Directors may, before such expiry, make offers or agreements which would or might require ordinary shares to be allotted or rights to be granted after such expiry and allot ordinary shares or grant rights in pursuance of such offers or agreements.

To consider and, if thought fit, pass the following resolutions to be proposed as Special Resolutions:

5b) To authorise the Directors, pursuant to and in accordance with section 570 and 573 of the Act, to allot equity securities (as defined in section 560 of the Act) for cash as if sub-section 561 of the Act did not apply to the allotment of equity securities pursuant to the authority conferred on them under section 551 of the Act up to the aggregate nominal value of £400,000 (being approximately 10% of the Company’s issued share capital as at the date of this notice), such power to expire on the earlier of the conclusion of the next Annual General Meeting of the Company and 15 months after the date of the resolution (but so as to enable the Company, before the expiry of such power, to make offers or agreements which would or might require equity securities to be allotted after such expiry and to enable them to allot equity securities for cash pursuant to such offers or agreements as if the power conferred thereby had not expired).

6. To authorise the Company, generally and unconditionally, to make market purchases (within the meaning of section 693(4) of the Act) pursuant to and in accordance with section 701 of the Act of fully paid ordinary shares in the capital of the Company upon and subject to the following conditions but otherwise unconditionally:

a) the maximum number of ordinary shares hereby authorised to be purchased is 4,000,000, which is approximately 5% of the ordinary share capital of the Company as at the date of this notice;

b) the maximum price which may be paid for each such ordinary share shall be an amount no more than 105% of the average of the middle market quotations for an ordinary share as derived from the Alternative Investment Market of the London Stock Exchange for the five business days immediately preceding the day on which such ordinary share is contracted to be purchased (excluding expenses) and the minimum price which may be paid for such ordinary share shall be the nominal value of such ordinary share at the time of such purchase (excluding expenses); and

c) unless previously varied, revoked or renewed, the authority conferred by this resolution shall expire on the earlier of the date 15 months after the passing of this resolution and at the conclusion of the next Annual General Meeting of the Company after the date on which this resolution is passed, provided that the Company may before such expiry date enter into a contract to purchase ordinary shares under this authority which will or may be completed or executed wholly or partly after the expiration of such authority and may make a purchase of ordinary shares in pursuance of such contract.

By order of the Board
C J Foss
Secretary

Registered Office:
2nd Floor, Martin House
5 Martin Lane
London EC4R 0DP

Dated 7 June 2010

Notes:

1. A member of the Company entitled to attend and vote at the meeting convened by this Notice may appoint a proxy to attend and vote on a poll in his stead. A proxy need not be a member of the Company. A member may appoint more than one proxy provided that such appointment is in respect of voting rights attaching to different shares.

2. To be valid, the enclosed Form of Proxy must be completed and lodged together with the Power of Attorney or any other authority (if any) under which it is signed, or a notarially certified copy thereof, at the offices of the Company’s Registrars, Neville Registrars Limited, Neville House, 18 Laurel Lane, Halesowen, West Midlands B63 3DA not less than forty eight hours before the time appointed for holding the meeting.

3. Completion of the proxy does not preclude a member from attending and voting at the meeting if they so wish.

4. The Company, pursuant to Regulation 41 of the Uncertificated Securities Regulations 2001, hereby specifies that only those shareholders registered on the Register of Members of the Company at 10.00am on 28 June 2010 shall be entitled to attend or vote at the meeting in respect of shares registered in their name at the time. Changes to entries on the relevant Register of Members after this time shall be disregarded in determining the rights of any person to attend or vote at the meeting, notwithstanding any provisions in any enactment, the articles of association of the Company or other instrument to the contrary.

Download the Notice of AGM and Form of Proxy (PDF)

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Company Secretary

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Bishopsgate Communications
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Northern Petroleum Plc, an independent oil and gas exploration, development and production company announces its audited results for the year ended 31 December 2009.

Highlights:

Operational:

• At 31 December 2009 the Company had 102.9 million barrels of oil equivalence of net proven and probable reserves, representing an increase of 34.6% from the 76.4 barrels of oil equivalence reported at the end of 2008;

• At the end of 2009, production had increased to 1320 barrels of oil equivalence per day (boepd) with the commissioning of two new gas fields in The Netherlands. The production rate at the start of the year was 367 boepd; and

• The Company conducted two seismic surveys during 2009, recording 3067km of 2D data and set up a 1520km2 3D survey which was recorded in early 2010.

Financial:

• The Company made a record capital investment of €29.7 million, to develop its reserves and resources;

• The Company made a post tax loss of €2.15 million for the year;

• At the end of 2009 the Company had €15 million of cash, plus €3.5 million of working capital; and

• The Company successfully completed the acquisition of the outstanding shares in ATI Oil Plc which it did not already own.

Outlook:

• Development of two further gas fields in the Netherlands is going to plan with first production on schedule for 2010;

• The Company is developing plans to participate in the drilling of up to six wells over the next 12 months; and

• The Company expects to have achieved a production rate in excess of 1,750 barrels of oil equivalence a day by the end of 2010.

Read further details and download the Report

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Nigel Wright, Finance Director
Graham Heard, Exploration and Technical Director
Sophie Hull, Head of Corporate Communications

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Financial Dynamics
Billy Clegg / Edward Westropp
Tel: +44 (0) 20 7318 3113

Northern (AIM: NOP) will issue its final results for the year ended 31 December 2009 on Tuesday 8 June 2010.

Northern is also pleased to announce the appointment of Cenkos Securities plc as its NOMAD and Joint Broker with immediate effect. Jefferies International Limited will continue to act as Joint Broker to the Company.

The Board also thank the staff of Astaire Securities for their services to the Company over the recent past.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Nigel Wright, Finance Director
Chris Foss, Director of Legal & Corporate Affairs

Cenkos Securities (NOMAD and Joint Broker)
Jon Fitzpatrick, Tel: +44 (0) 20 7397 8900
Ken Fleming, Tel: +44 (0) 131 220 6939

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Active Capital Trust plc
    
4. Full name of shareholder(s) (if different from 3.):
   Active Capital Trust plc
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   12/03/10
    
6. Date on which issuer notified:
   21/04/10
    
7. Threshold(s) that is/are crossed or reached:
   3%
       
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Bluehone Investors LLP

Proxy Voting:

10. Name of the proxy holder:
    Bluehone Investors LLP
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    This Notification is based upon the Voting Rights figure of 78,987,248 obtained from your Regulatory Announcement dated 30th November 2009.
     
14. Contact name:
    Chris Foss, Director of Legal & Corporate Affairs
     
15. Contact telephone number:
    020 7469 2900

Northern Petroleum Plc (Northern) is pleased to announce that RPS Energy have completed their Report to Northern (the “Report”) for the Providence Resources Plc (Providence) operated Baxters Copse licence area (PEDL 233) in the Weald Basin. The Report attributes previously unreported gross 2P and 3P reserves of 5.36 million stock tank barrels (MMstb) and 15.06 MMstb respectively of undeveloped reserves - 50% to NP Weald Limited, a wholly owned Northern subsidiary. Northern has agreed with Providence a programme for first oil from Baxters Copse in 2011.

Derek Musgrove, Managing Director, commented: “We are very pleased to announce the plans for Baxters Copse and its independently audited reserves. The proximity of Baxters Copse to the Singleton production site means that the well can be drilled and produced without requirements for further Planning Consents. There are also plans to further evaluate the other prospects within PEDL 233.”

RPS Report detail:

The Baxters Copse discovery is located c. 5 km northeast of the Singleton oil field production facilities. Northern, on behalf of the joint venture reprocessed the available 2D seismic data over Baxters Copse, which has greatly improved the subsurface imaging. Subsequent interpretation, depth conversion and mapping have indicated that Baxters Copse is a significantly larger oil accumulation than was previously thought.

Singleton currently produces over 800 bopd.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Nigel Wright, Finance Director
Graham Heard, Exploration & Technical Director
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate
Nick Rome
Tel: +44 (0) 20 7562 3366

2P RESERVES AT BAXTERS COPSE 2.68 MILLION BARRELS NET TO NORTHERN

Northern Petroleum Plc (Northern) is pleased to announce that RPS Energy have completed their Report to Northern (the “Report”) for the Providence Resources Plc (Providence) operated Baxters Copse licence area (PEDL 233) in the Weald Basin. The Report attributes previously unreported gross 2P and 3P reserves of 5.36 million stock tank barrels (MMstb) and 15.06 MMstb respectively of undeveloped reserves - 50% to NP Weald Limited, a wholly owned Northern subsidiary. Northern has agreed with Providence a programme for first oil from Baxters Copse in 2011.

Derek Musgrove, Managing Director, commented: “We are very pleased to announce the plans for Baxters Copse and its independently audited reserves. The proximity of Baxters Copse to the Singleton production site means that the well can be drilled and produced without requirements for further Planning Consents. There are also plans to further evaluate the other prospects within PEDL 233.”

RPS Report detail:

The Baxters Copse discovery is located c. 5 km northeast of the Singleton oil field production facilities. Northern, on behalf of the joint venture reprocessed the available 2D seismic data over Baxters Copse, which has greatly improved the subsurface imaging. Subsequent interpretation, depth conversion and mapping have indicated that Baxters Copse is a significantly larger oil accumulation than was previously thought.

Singleton currently produces over 800 bopd.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Nigel Wright, Finance Director
Graham Heard, Exploration & Technical Director
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate
Nick Rome
Tel: +44 (0) 20 7562 3366

Northern announces that on 12 April the Board approved the issue to a director of warrants to purchase Ordinary 5p Shares of the Company as follows:

Name: Nigel John Wright
Number of Warrants over Ordinary 5p Shares: 350,000
Exercise Price: 127.50p

The above warrants are each exercisable into one Ordinary 5p Share at a subscription price based upon the prevailing mid-market price at close of business on 9 April 2010. The new warrants are open to exercise in two equal tranches on 12 April 2011 and 1 June 2012 and expire on 31 October 2013 and 31 December 2014 respectively. These warrants have been issued in accordance with terms laid out in Mr Wright’s contract of employment and reflect a continuation of the Board's policy of providing performance based incentives to Directors and staff.

Nigel Wright is not currently a shareholder in Northern.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Director of Legal & Corporate Affairs
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern Petroleum Plc (“Northern”) is pleased to announce that Nigel Wright has been appointed Finance Director and to the Board of Directors. Based in London, Nigel will join Northern on 12th April 2010 and will bring with him a wealth of experience in the petroleum industry. He will take over the role from Chris Foss who has held that responsibility since 2005. Nigel has previously been the Chief Financial Officer (“CFO”) of substantial multinational oil and chemical businesses.

Chris will redeploy his seven years of experience at Northern to the newly created role of Director of Legal & Corporate Affairs and will inter alia assist the Managing Director in the implementation and delivery of the corporate strategy plan. Chris will also continue in his role as Company Secretary.

Nigel graduated with a first class honours degree in Mechanical Engineering in 1981 before becoming a chartered engineer in 1985 and a Chartered Management Accountant in 1989. He joined BP in 1981 working on BP Exploration and Production projects later becoming CFO of Innovene Europe, a $16bn business, and Global Cash Manager of BP Chemicals, a $23bn business. Most recently he was CFO of Caithness Petroleum, an independent oil and gas exploration and production company.

Commenting on the appointment, Richard Latham, Chairman, Northern Petroleum Plc said: “I am delighted to welcome Nigel to the Board. He joins us at a time of increasing activity as the Company builds upon the commissioning into production of the Grolloo and Geesbrug gas fields last year and now proceeds with plans to develop nine further oil and gas discoveries as well as expansion plans at Geesbrug.”

Derek Musgrove, Managing Director commented: “Nigel’s appointment will allow Chris to redeploy and better enable us to meet the requirement for an intense effort to make a considerable expansion to our initial production position in The Netherlands. It is also a period when we will be drilling onshore in the UK and increasing both our corporate and operational activities on our large licence position in Italy. I look forward to working with him.”

“Utilising Chris’ knowledge of Northern and his track record of project delivery will also be invaluable as we seek to further expand and grow the Company” added Derek Musgrove.

Nigel Wright does not hold, nor has held, directorships in any companies in the five years preceding his appointment to the Board of Northern.

There are no other matters to be disclosed in relation to Schedule 2 paragraph (g) of the AIM Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern announces that the Ministerie van Economische Zaken (“EZ”) has awarded the Zuid-Friesland III Production Licence to Nederlandse Aardolie Maatschappij BV (“NAM”), Total, Petro-Canada and Dyas. The licence is for a period of 25 years and covers 104.6 km² in the Province of Friesland, The Netherlands

The licence area includes two gas fields; namely Oppenhuizen and Woudsend. Oppenhuizen-1 was drilled in 1972. The well discovered gas in the Zechstein 2 Carbonate and tested initial rates of 400,000 Nm³/d (15 mmscf/d). The well remains suspended. Woudsend-1 was drilled in 1987 and discovered gas in the Zechstein Carbonate but was not tested.

Under separate prior agreements, Northern Petroleum Nederland B.V. (“NPN”) will acquire NAM’s and Dyas’ working interests in the Licence and assume operatorship. After 40% participation by Energie Beheer Nederland B.V. (“EBN”), NPN’s working interest is 44.34%. The transfers are subject to the usual Government consent.

NPN will develop each field according to the agreements and will receive out of cash flow from production 100% pay-back of its costs plus an uplift. After pay-back, operating cash flow will be split between NPN and NAM and Dyas under a profit share arrangement.

The unaudited estimate of the Gas Initially in Place (GIIP) of the two fields is a combined 2.88 BNcm (107 Bscf) with expected recovery factors of the order of 60%.

“Northern is delighted with the announcement of the award of this licence with the acquisition of two further field development projects. This represents the results of much ground work by Northern and is a very welcome increase to NPN’s growth plans for the onshore Netherlands adding to the two gas fields placed on production in 2009,and the current developments of the Brakel, Ottoland, Papekop and Wijk and Aalburg fields. It is an endorsement of our strategy.” commented Derek Musgrove, Managing Director, Northern Petroleum Plc.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern announces that on 20th March 2010 it completed the seismic operations in offshore West Sicily thrust belt covering four licences - G.R17.NP, G.R20.NP, G.R21.NP and G.R22.NP. Seismic acquisition commenced on 14 January 2010 and a total of 1520 km² of 3D seismic data has been acquired using the vessel ‘M/V Atlantic Explorer’ contracted from Petroleum Geo-Services Asia Pacific-Pte Limited.

The seismic acquisition is part of the work programme being funded by Shell Italia E&P S.p.A. (“Shell”) as part of the farm-in arrangement announced in December 2008. The aim of the survey is to obtain a better quality, and more complete, definition of the encouraging structures identified by the two previous 2D seismic campaigns, and firm up prospects for drilling.

Under the terms of the farm-in agreement Shell holds 55% in G.R17.NP, and 70% in G.R20.NP, G.R21.NP and G.R22.NP.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

The Company announces that on 16 March Graham Heard, Exploration & Technical Director, exercised 100,000 warrants to acquire ordinary shares of 5 pence each ("ordinary shares") at 11.25 pence per ordinary share. The Company has made an application pursuant to the authority granted on 22 July 2009 for the admission of 100,000 ordinary shares to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 79,997,995.

It is expected that dealings in the 100,000 new ordinary shares will commence on 24 March 2010.

Following this warrant exercise Mr Heard today sold 37,698 ordinary shares at a price of 126p per share, while his SIPP today purchased 37,698 ordinary shares at a price of 126p per share. In addition, Mr Heard has today transferred 110,000 of his ordinary shares to his SIPP at a price of 125.425p per share. Following these transactions, Mr Heard’s total beneficial shareholding has increased by 100,000 to 563,384 ordinary shares, which represents 0.70 per cent of the enlarged issued share capital of the Company.

In addition the Company has been advised that Chris Foss, Finance Director, today sold 4,350 ordinary shares at a price of 126p per share, while his SIPP today purchased 4,350 ordinary shares at a price of 126p per share. Following these transactions, Mr Foss’ beneficial shareholding remains at 102,052 ordinary shares, which represents 0.13 per cent of the enlarged issued share capital of the Company.

The Company has also been advised that Tony Brewer, Non-Executive Director, today sold 6,391 ordinary shares at a price of 124p per share, while his SIPP today purchased 6,391 ordinary shares at a price of 124.75p per share. Following these transactions, Mr Brewer’s beneficial shareholding remains at 81,391 ordinary shares, which represents 0.10 per cent of the enlarged issued share capital of the Company.

As a result of all these transactions, the directors’ total beneficial shareholdings are now 2,891,635 ordinary shares, which represents 3.61 per cent of the enlarged issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

The Company announces that on 26 February Richard Latham, its Chairman, exercised 280,000 warrants to acquire ordinary shares of 5 pence each ("ordinary shares") at 11.25 per ordinary share and 120,000 warrants to acquire ordinary shares at 15.625 pence. The Company has made an application pursuant to the authority granted on 22 July 2009 for the admission of 400,000 ordinary shares to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 79,897,995.

It is expected that dealings in the 400,000 new ordinary shares will commence on 8 March 2010.

Following this warrant exercise, Mr Latham sold 25,000 ordinary shares on 26 February at a price of 133p, and today sold 15,000 ordinary shares at a price of 131.5p and 160,000 ordinary shares at a price of 129.5p, to cover the cost of exercise, including the associated income tax liability. These sales represent the final sales by Richard Latham in relation to this warrant exercise.

Following these transactions, Mr Latham’s total beneficial shareholding has increased by 200,000 to 962,477 ordinary shares, which represents 1.20 per cent of the enlarged issued share capital of the Company.

The directors’ total beneficial shareholdings are now 2,791,635 ordinary shares, which represents 3.49 per cent of the enlarged issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Richard Latham, Chairman

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 31 January 2010 the Company's issued share capital consists of 79,042,248 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 79,042,248.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc
    
4. Full name of shareholder(s) (if different from 3.):
   ABN AMRO Bank N.V.
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   01/02/2010
    
6. Date on which issuer notified:
   02/02/2010
    
7. Threshold(s) that is/are crossed or reached:
   5%
       
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   ABN AMRO Holding N.V.
   ABN AMRO Bank N.V.

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    This Notification is based upon the Voting Rights figure of 78,987,248 obtained from your Regulatory Announcement dated 30th November 2009.
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

The Company announces that, following the exercise of warrants at 67 pence per share to subscribe for ordinary shares today by an employee, it has made an application pursuant to the authority granted on 22 July 2009 for the admission of 37,500 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 79,079,748.

It is expected that dealings in the said shares will commence on 10 February 2010.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern announces that pursuant to the authority granted on 22 July 2009 it has issued today 418,247 ordinary shares of 5 pence to six directors and seventeen staff in respect of the share settled element of the Company’s 2009 bonus scheme. The shares have been issued at a price of 146.4375 pence per share, being the average mid market closing price for the three weeks ending 22 January 2010. Each new ordinary share will rank pari passu with existing ordinary shares. Application has been made for the shares to be admitted to trading on AIM and dealings are expected to commence on 11 February 2010.

Following admission, the total number of ordinary shares in issue will be 79,497,995.

As a result of the above issue, the holdings of the directors have changed as follows:

The directors’ total beneficial shareholdings are now 2,591,635 ordinary shares, which represents 3.26 per cent of the issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 31 January 2010 the Company's issued share capital consists of 79,042,248 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 79,042,248.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

The Company announces that, following the exercise of warrants at 67 pence per share to subscribe for ordinary shares on 26 January by a consultant, it has made an application pursuant to the authority granted on 22 July 2009 for the admission of 17,500 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 79,042,248.

It is expected that dealings in the said shares will commence on 3 February 2010.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern has commenced 3D seismic operations in the West Sicily thrust belt that will cover four licences - G.R17.NP, G.R20.NP, G.R21.NP and G.R22.NP. A total of up to 1520 km² of 3D seismic data will be acquired in these licences with the survey expected to last approximately two months.

The seismic acquisition is part of the work programme being funded by Shell Italia E&P S.p.A. (Shell) as part of the farm-in arrangement announced in December 2008. The aim of the survey is to obtain a better quality, and more complete, definition of the encouraging structures identified by the two previous 2D seismic campaigns, and firm up prospects for drilling.

The seismic acquisition has been contracted to Petroleum Geo-Services Asia Pacific-Pte Limited and the 3D data is being acquired using the vessel ‘M/V Atlantic Explorer’ utilising GeoStreamer technology to enhance resolution. Under the terms of the farm-out agreement Shell holds 55% in G.R17.NP, and 70% in G.R20.NP, G.R21.NP and G.R22.NP.

“The West Sicily Thrust Belt is part of the major thrust system incorporating large oil fields in the Southern Apennines and continues into Tunisia, Algeria and Morocco. Northern considers it prospective for both oil and gas. This survey will be processed and interpretation undertaken to enable prospects to be defined for a drilling decision later this year.” commented Derek Musgrove, Managing Director, Northern Petroleum Plc.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr. Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern and its partners** announces that the Tiendeveen -1 exploration well has finished drilling and the completion string has been run in order to allow for future perforating, hydraulic fracturing and testing.

Additional time was required to overcome difficulties of squeezing salt, as well as a swelling clay section requiring the running of an extra casing interval. Weather conditions have also been extreme. Following further detailed analysis NPN* will be preparing and designing a testing and frac programme for those intervals interpreted as gas bearing.

“Tiendeveen is situated in the east of the Netherlands and is 3.8km from our Geesbrug gas field and pipeline on the Drenthe III licence. If testing is successful Tiendeveen will be adding to our reserves and production from the Grolloo and Geesbrug fields. This clearly demonstrates the potential this region has to offer. With approximately 50% of Dutch daily energy needs being provided by natural gas, strong demand can be expected to continue” commented Derek Musgrove, Managing Director, Northern Plc.

** Partners in the well are Northern Petroleum Nederland B.V. with 45%, EBN, the state oil company and Dyas B.V. with 40% and 15% respectively.

* Northern Petroleum Nederland B.V. (NPN) is Northern’s wholly owned subsidiary management company developing onshore oil and gas fields in The Netherlands.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern and its partners announce the start of production from the Geesbrug gas field. This brings into production reserves independently assessed at 165 Proven plus 142 Probable billion cubic feet (“bcf”). Geesbrug is the second of four gas and two oil fields in the onshore development programme being undertaken by Northern and its partners. The gas from Geesbrug is being delivered via a dedicated pipeline to the NAM operated Coevorden-17 facilities.

Over the next few months gas production from Geesbrug initially will be 200,000 normal cubic metres (Nm³) a day (7.4million cubic feet per day (mmscfd)). After this initial evaluation period Northern expects to be able to significantly increase the production rate from the existing well and potentially drill several further production wells to efficiently produce the Geesbrug gas reserves. The detailed production and development plan will be determined after well pressure data from the initial production period has been analysed. Until then the combined production net to Northern from Geesbrug and the recently commissioned Grolloo gas field, which came on-stream 4th December 2009, will be 6.7mmscfd (1150 boepd).

“Achieving production from the Geesbrug gas field is an important step forward for Northern. The Geesbrug Proven plus Probable reserves are 137bcf (23.8million boe) net to Northern. By way of comparison it is eleven to fifteen times the Grolloo reserves. This is the second new field to be brought into production following our highly successful 2008/9 fraccing programme. I am grateful to the on-site crews for their unstinting efforts in extreme weather conditions achieving this by year end.

“Northern’s next critical milestone in The Netherlands is the installation of our own independent gas processing plants at Wijk en Aalburg and Brakel gas fields, south west Netherlands, as they are brought on-stream this summer.

“As we fully develop all six fields in our current Netherlands programme, we intend to re-invest revenues in our portfolio of high impact exploration prospects in Italy and to re-drill and place into production three of the old discoveries in our large Utrecht licence in the southwest Netherlands. Combined, these discoveries are estimated at about 217 bcf (37.4million boe) in place, 60% to Northern. A local financial institution has modelled our Gasterra gas sales contract for us. The contract correlates strongly to Brent with a six month time lag. Given the strengthened Brent price in the last six months and the strong Brent futures price for the next six months, an average price of €0.24Nm³ for H1 2010 and €0.27Nm³ for H2 2010 would result. This is the start of a rewarding period of satisfying revenue growth for Northern.” commented Derek Musgrove, Managing Director, Northern Petroleum Plc.

Partners in the well are Northern Petroleum Nederland B.V. with 45%, EBN, the state oil company and Dyas B.V. with 40% and 15% respectively,

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc
    
4. Full name of shareholder(s) (if different from 3.):
   ABN AMRO Bank N.V.
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   24/12/09
    
6. Date on which issuer notified:
   29/12/09
    
7. Threshold(s) that is/are crossed or reached:
   5%
       
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   ABN AMRO Holding N.V.
   ABN AMRO Bank N.V.

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    This Notification is based upon the Voting Rights figure of 78,987,248 obtained from your Regulatory Announcement dated 30th November 2009.
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

Northern and its partners are pleased to announce they have started gas production from the Grolloo gas field, the first of four gas and two oil fields planned for development onshore The Netherlands. The Grolloo facilities have been commissioned and first gas sales commenced on December 4th 2009 at a daily rate of 200,000 normal cubic metres a day (7.4mmscfd). Development of all four gas fields (Grolloo, Geesbrug, Wijk en Aalburg and Brakel) will be completed by early next year. These will produce in aggregate daily rate of up to 800,000 m³ per day (approx. 30 mmscfd) in 2010.

This gas is the first production following the agreement between Northern Petroleum Nederland B.V. (NPN), a wholly owned subsidiary of Northern Petroleum Plc, and Nederlandse Aardolie Maatschappij (NAM) in 2005**. NPN, the operator has a 45% licence interest. EBN, the Netherlands’ state oil company and Dyas hold 40% and 15% respectively.

Chairman of the Executive Board of EBN, Jan Dirk Bokhoven said “I am delighted with Northern’s first successful development in the Netherlands. It shows there is still sufficient gas potential in the Netherlands and it is another step towards our goal of producing 30 bcm from small fields by 2030.”

Peter Veenhof, Managing Director Dyas also commented “Dyas congratulates Northern Petroleum with this important milestone of reaching first gas on the Grolloo field. This is an important step into unlocking reserves from similar small gas pockets in the Netherlands that were previously considered not to be economically attractive.”

Derek Musgrove, Managing Director, Northern added “We have achieved our first objective in our plans to place four gas and two oil discoveries on stream in The Netherlands. Naturally, with shareholders I look forward eagerly for Geesbrug, Wijk en Aalburg and Brakel to be contributing to production revenues in the next few months - weeks in the case of Geesbrug. At the moment we take joy at this accomplishment which has been long awaited. We have had tremendous support from NAM and our partners EBN, and Dyas and would like to thank all those who have worked closely with us to reach this milestone.

“With this new production we have demonstrated our operational and organisational strengths, technical capabilities and ecologically sensitive approach. We will now work to increase production from our other five fields and expand further from this base. The profits from these six wells will assist Northern in driving both our exploration activities in Italy and re-drilling of three old discoveries in the Utrecht Licence even faster.”

Further information

The Grolloo field alone is forecast to deliver initial revenues of approximately Euro20 million (Euro9 million net to NPN) based on an assumed gas price of Euro0.20 per Nm³. The existing design facility is capable of considerably higher daily production rates. The decision on an increase to production rates will be made once flow rates have stabilised and once several months of production experience has been gained.

Gas from Grolloo is being delivered via a dedicated pipeline to the NAM operated Vries facilities and then on to the Westerveld process facilities. Geesbrug will be the next field to be brought on-stream employing a similar scheme of development.

** See press release 14 June 2005

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Northern and its partners are pleased to announce they have started gas production from the Grolloo gas field, the first of four gas and two oil fields planned for development onshore The Netherlands. The Grolloo facilities have been commissioned and first gas sales commenced on December 4th 2009 at a daily rate of 200,000 normal cubic metres a day (7.4mmscfd). Development of all four gas fields (Grolloo, Geesbrug, Wijk en Aalburg and Brakel) will be completed by early next year. These will produce in aggregate daily rate of up to 800,000 m³ per day (approx. 30 mmscfd) in 2010.

This gas is the first production following the agreement between Northern Petroleum Nederland B.V. (NPN), a wholly owned subsidiary of Northern Petroleum Plc, and Nederlandse Aardolie Maatschappij (NAM) in 2005**. NPN, the operator has a 45% licence interest. EBN, the Netherlands’ state oil company and Dyas hold 40% and 15% respectively.

Chairman of the Executive Board of EBN, Jan Dirk Bokhoven said “I am delighted with Northern’s first successful development in the Netherlands. It shows there is still sufficient gas potential in the Netherlands and it is another step towards our goal of producing 30 bcm from small fields by 2030.”

Peter Veenhof, Managing Director Dyas also commented “Dyas congratulates Northern Petroleum with this important milestone of reaching first gas on the Grolloo field. This is an important step into unlocking reserves from similar small gas pockets in the Netherlands that were previously considered not to be economically attractive.”

Derek Musgrove, Managing Director, Northern added “We have achieved our first objective in our plans to place four gas and two oil discoveries on stream in The Netherlands. Naturally, with shareholders I look forward eagerly for Geesbrug, Wijk en Aalburg and Brakel to be contributing to production revenues in the next few months - weeks in the case of Geesbrug. At the moment we take joy at this accomplishment which has been long awaited. We have had tremendous support from NAM and our partners EBN, and Dyas and would like to thank all those who have worked closely with us to reach this milestone.

“With this new production we have demonstrated our operational and organisational strengths, technical capabilities and ecologically sensitive approach. We will now work to increase production from our other five fields and expand further from this base. The profits from these six wells will assist Northern in driving both our exploration activities in Italy and re-drilling of three old discoveries in the Utrecht Licence even faster.”

Further information

The Grolloo field alone is forecast to deliver initial revenues of approximately Euro20 million (Euro9 million net to NPN) based on an assumed gas price of Euro0.20 per Nm³. The existing design facility is capable of considerably higher daily production rates. The decision on an increase to production rates will be made once flow rates have stabilised and once several months of production experience has been gained.

Gas from Grolloo is being delivered via a dedicated pipeline to the NAM operated Vries facilities and then on to the Westerveld process facilities. Geesbrug will be the next field to be brought on-stream employing a similar scheme of development.

** See press release 14 June 2005

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Brokers to the Company

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Following Northern Petroleum Plc’s announcement as of 07.00am, Monday 30 November 2009, the issuer wishes to advise that a correction has been made to the first line of the second paragraph which inadvertently stated the issued share capital of the Company as 78,885,326 ordinary shares, instead of the correct figure of 78,987,248 ordinary shares.

The full corrected announcement follows:

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 30 November 2009 the Company's issued share capital consists of 78,987,248 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 78,987,248.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Chris Foss, Finance Director
Sophie Hull, Head of Corporate Communications

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 30 November 2009 the Company's issued share capital consists of 78,885,326 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 78,987,248.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Chris Foss, Finance Director
Sophie Hull, Head of Corporate Communications

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Barclays PLC
    
4. Full name of shareholder(s) (if different from 3.):
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   25 Nov 09
    
6. Date on which issuer notified:
   26 Nov 09
    
7. Threshold(s) that is/are crossed or reached:
   5% to below notifiable %
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

Northern will be presenting an update to analysts on 8 December 2009 on the Company’s operations and the imminent commencement of production from the Grolloo gas field, the first of four gas and two oil fields currently under development onshore The Netherlands. The presentation will take place at 11.30am at Northern’s offices, Martin House, 5 Martin Lane, London, EC4R 0DP. Analysts who are unable to attend in person will also be able to participate via conference call from 11.15am on that morning, and should contact Ben Romney at Buchanan Communications before 11.00am on 8 December for dial in information.

The analyst presentation will be made available on the Company’s website, http://www.northpet.com, after commencement of the meeting.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company announces that, following the exercise of warrants at 11.25 pence per share to subscribe for ordinary shares on 17 November by Graham Heard, Exploration and Technical Director, it has made an application pursuant to the authority granted on 22 July 2009 for the admission of 40,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 78,987,248.

It is expected that dealings in the said shares will commence on 25 November 2009.

Mr Heard has today transferred these 40,000 ordinary shares to his SIPP at a price of 148p per share. Following this warrant exercise and transfer, Mr Heard’s total beneficial shareholding has increased by 40,000 to 428,408 ordinary shares, which represents 0.54 per cent of the issued share capital of the Company. Today’s transactions do not however result in any change in Mr Heard's beneficial interest in the diluted share capital of Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company announces that, following the exercise of warrants at 68.5 pence per share to subscribe for ordinary shares on 12 November by an employee, it has made an application pursuant to the authority granted on 22 July 2009 for the admission of 25,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 78,947,248.

It is expected that dealings in the said shares will commence on 19 November 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company has been informed that Chris Foss, Finance Director, transferred 9,160 ordinary shares of the Company from his personal holdings to his SIPP on 10 November at a price of 158p per share. This transfer does not alter Mr Foss’ total beneficial shareholding of 67,076 ordinary shares.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that pursuant to the authority granted on 22 July 2009 it issued yesterday 36,922 ordinary shares of 5 pence to two directors and twenty staff who have taken part of their salary entitlement in stock. The shares have been issued at a price of 158 pence per share being the mid market price at market opening on 9 November 2009. Each new ordinary share will rank pari passu with existing ordinary shares. Application has been made for the shares to be admitted to trading on AIM and dealings are expected to commence on 17 November 2009. Following admission, the total number of ordinary shares in issue will be 78,922,248.

As a result of the above issue, Chris Foss, Finance Director, has increased his holding by 3,797 to 67,076 ordinary shares of 5 pence each, representing 0.08 per cent of the enlarged issued share capital of the Company. In addition, Graham Heard, Exploration & Technical Director, has increased his holding by 3,797 to 388,408 ordinary shares of 5 pence each, representing 0.49 per cent of the enlarged issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (     )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Hugh Patrick Sloane
    
4. Full name of shareholder(s) (if different from 3.):
   
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   26/10/09
    
6. Date on which issuer notified:
   27/10/09
    
7. Threshold(s) that is/are crossed or reached:
   3%
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   Hugh Patrick Sloane holds 2,000,000 shares in the issuer, having acquired an additional 200,000 shares on 26 October 2009. His wife, Kate Elisabeth Sloane, holds 400,000 shares in the issuer. Hugh Patrick Sloane and Kate Elisabeth Sloane have a combined holding of 2,400,000 shares (by virtue of DTR 5.2.1R(a)), being 3.04% of the voting rights in the issuer.

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

An exploration licence covering the Kerkwijk South gas prospect has been awarded to Northern Petroleum Nederland B.V. (“NPN”), a wholly owned Dutch subsidiary of Northern. The Engelen Exploration Licence (“Engelen”) covers 97km² in the West Netherlands Basin, an area where NPN already holds four other exploration and production licences (Andel III, Papekop, Utrecht and Waalwijk). The prospect has been mapped from existing seismic data and is on trend to the Kerkwijk gas discovery drilled in 1988.

The licence application, in which NPN has a 100% interest, will run for 4 years and was submitted in March 2009 in competition to the prior application of a third party. Engelen is adjacent to NPN’s Utrecht licence which contains two undeveloped discoveries of immediate interest with a total gas in place 242 bcf (P50) and exploration prospects which will be evaluated in conjunction with the Engelen licence.

Upon future conversion to a production licence NPN’s 100% interest is by law subject to the election by EBN B.V. (“EBN”) to acquire a 40% paying participating interest.

Derek Musgrove, Managing Director of Northern, stated: “This award is pleasing. It was processed within 7 months, it was gained in a competitive process and it contains a mapped structure near to a gas discovery in the main play fairway. It is our 9th licence in The Netherlands bringing the gross total area in which NPN holds a licence interest to 3497 km²”.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (     )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc
    
4. Full name of shareholder(s) (if different from 3.):
   ABN AMRO Bank N.V.
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   08/10/09
    
6. Date on which issuer notified:
   16/10/09
    
7. Threshold(s) that is/are crossed or reached:
   6%
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   ABN AMRO Holding N.V.
   ABN AMRO Bank N.V.

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

Gas has been discovered in the Tiendeveen -1 exploration well. The gas in the Permian Zechstein carbonates which had been identified as a secondary target in the well has been confirmed from wireline logs and drilling data.

The Geesbrug gas field which Northern is developing nearby is also gas bearing in the same Zechstein reservoir. Northern will review both the Tiendeveen and Geesbrug data to assess the range of possible reserves, development options and synergies. No potential gas in place volumes were assigned to the Zechstein prior to drilling.

The intermediate casing will now be run in the hole cemented and pressure tested before the drilling deeper to to the primary reservoir targets located in the Permian Rotliegend sandstone and the Carboniferous Dalen and Hardenberg sandstones. The estimated mean potential gas in place for these reservoirs is 60bcf with an upside P10 potential of 98bcf. Once drilling has been completed further wireline logging will be undertaken on Tiendeveen to confirm the presence of hydrocarbons in the deeper primary targets.

Partners in the well are Northern Petroleum Nederland B.V. (NPN is a wholly owned subsidiary of Northern) with 45%, EBN, the state oil company and Dyas B.V. with 40% and 15% respectively.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that together with Shell Italia E&P S.p.A. (“Shell”) it will be acquiring a 3D seismic survey in their joint exploration area offshore Sicily. Shell will fund the prospect defining programme in the joint venture held thrust belt offshore of western Sicily. The joint venture currently covers six offshore licences - G.R17.NP, G.R18.NP, G.R19.NP, G.R20.NP, G.R21.NP and G.R22.NP covering a total area of 4350 km² in which a 2300 km 2D seismic survey was recorded earlier this year.

Under the terms of the farm-out agreement (“Agreement”), Shell hold 55% in G.R17.NP, G.R18.NP and G.R19.NP; and 70% in G.R20.NP, G.R21.NP and G.R22.NP. Northern will continue as the operator during the seismic phase and Shell will assume operatorship for the drilling phase.

Commenting on the programme Derek Musgrove, Managing Director, Northern, said “This progresses one of the most exciting areas for exploration and material growth for Northern as well as significantly increased expenditure. Shell brings to this venture experience of exploration and production in the southern Italy part of the same Apennine-Mahgrebian Thrust Belt where the major oil fields of Val d’Agri and Tempa Rossa have been developed. The venture can also call upon their international major project and offshore expertise. If drilling is successful it could open up a whole new Western European and North African hydrocarbon province.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that together with Shell Italia E&P S.p.A. (“Shell”) it will be acquiring a 3D seismic survey in their joint exploration area offshore Sicily. Shell will fund the prospect defining programme in the joint venture held thrust belt offshore of western Sicily. The joint venture currently covers six offshore licences - G.R17.NP, G.R18.NP, G.R19.NP, G.R20.NP, G.R21.NP and G.R22.NP covering a total area of 4350 km² in which a 2300 km 2D seismic survey was recorded earlier this year.

Under the terms of the farm-out agreement (“Agreement”), Shell hold 55% in G.R17.NP, G.R18.NP and G.R19.NP; and 70% in G.R20.NP, G.R21.NP and G.R22.NP. Northern will continue as the operator during the seismic phase and Shell will assume operatorship for the drilling phase.

Commenting on the programme Derek Musgrove, Managing Director, Northern, said “This progresses one of the most exciting areas for exploration and material growth for Northern as well as significantly increased expenditure. Shell brings to this venture experience of exploration and production in the southern Italy part of the same Apennine-Mahgrebian Thrust Belt where the major oil fields of Val d’Agri and Tempa Rossa have been developed. The venture can also call upon their international major project and offshore expertise. If drilling is successful it could open up a whole new Western European and North African hydrocarbon province.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

30 September 2009
Condensed Interim Results for the Six Months Ended 30 June 2009

Financial Highlights

Highlights:

• Strong balance sheet – cash and working capital of €41.2 million;
• Completion of ATI Oil Plc (ATI) acquisition;
• 35% increase in Proven & Probable reserves to 103 million barrels of oil equivalence;
• Strong share price performance; and
• Northern entered the FTSE AIM UK 50 Index;

Operations:

• Hydraulic reservoir fracturing programme success. Wells flow tested at rates greatly in excess of previous predictions;
• Grolloo and Geesbrug fields are scheduled for production before year end;
• Tiendeveen well, close to the Geesbrug gas field, currently drilling. (67 to 98 bcf gas prospect, Northern 22.5%);
• Offshore Sicily 2D seismic surveys completed over seven licences, six in partnership with Shell Italia E&P S.p.A.; and
• Preliminary award of five new Italian offshore licences. Licensed area now totals over 15,000km².

Outlook:

• Grolloo, Geesbrug, Brakel and Wijk en Aalburg gas fields all scheduled for production by early 2010, with the Ottoland and Papekop oil fields to follow;
• 2013 production forecast of 6,000 barrels of oil equivalent per day net to Northern; and
• Strong exploration and appraisal drilling programmes in The Netherlands, Italy, UK and Guyane.

Commenting on the results, Richard Latham, Chairman said:

“I believe that I can justly ask you to join me in looking to our Company’s future with optimism. In a year which started with recession Northern benefited from a strong financial position to continue unchecked towards placing its Netherlands fields on production. The fracturing programme has been a remarkable success. The ATI financing issues have been eliminated and the great potential of the position in Italy is demonstratively emerging. I am confident that our thrust belt venture with Shell Italia will continue further. We now report 2P reserves of 103 million barrels of oil equivalence whilst continuing to maintain a very strong financial position. The achievement of significant levels of production is imminent and the oil price seems to be settling at a satisfactory level as are the European gas prices.

I foresee us entering 2010 as a much stronger company, forecasting significant cash from production. In a world in which political and economic uncertainties may be predicted, we are very well positioned for growth with security.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

Download the Interim Results (PDF)

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Download pdf

Hydraulic fracturing in the Geesbrug-1 well of the Carboniferous Hardenberg and Permian Rotliegend formations in the Dutch Drenthe III licence area has been successfully completed.

Post fracturing the well has flowed on test beyond the upper range of Northern’s expectations with stable gas flow rates of 450,000 m3/d (16.7 MMscf/d) and flowing wellhead absolute pressures of 170 bar (2465 psia) on a 36/64” choke. Measurements made during tests combining flow from both the Rotliegend and Hardenberg formations, indicated that the Rotliegend formation alone is capable of flowing at over 260,000 m³/d (9.6 mmscf/d).

This highly successful five well programme of hydraulic fracturing of reservoirs carried out at Brakel, Wijk en Aalburg, Ottoland, Grolloo and Geesbrug over the last ten months is now concluded. Construction activities for short pipelines have commenced for the tie in for production of the Geesbrug and Grolloo fields.

These results also have much relevance to the Tiendeveen prospect currently drilling 3.8 kms northwest of Geesbrug targeting the same formation.

“The results of hydraulic fracturing have already exceeded even our upside expectations. Even with the upcoming tests results of Rotliegend still to be analysed, shareholders and the Northern team should relish bringing the Grolloo and Geesbrug fields on production providing a strong revenue stream.” said Derek Musgrove, Managing Director of Northern.

NPN maintains a 45% licence and working interest, with EBN and Dyas respectively holding 40% and 15%.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that seismic operations have commenced on the Guyane Maritime licence in which Northpet Investments Limited (“Northpet”) has a 2.5% interest (subject to Government of France approval). The Guyane Maritime licence is operated by Tullow Oil (“Tullow”). Northern holds 50% of the equity in Northpet.

The Guyane Maritime licence covers some 35,200 square kilometres of the prospective area offshore French Guyane in water depths ranging from 200m to 3000m. Interpretation of existing seismic and well data indicates the presence of several large structural and stratigraphic prospects with potential to contain significant hydrocarbon volumes. To date, the exploration effort has focussed on structural prospects located on the Guyane continental shelf. However, the results of more recent geological work have identified the presence of stratigraphic prospects developed along the shelf edge and slope. These features are similar in age and form to the oil discoveries such as the Jubilee Field made by Tullow on the other side of the Atlantic Ocean, offshore Ghana.

The 2009 3D seismic programme will acquire data across an area covering approximately 2500 square kilometres. The seismic acquisition should be complete before year end 2009. Thereafter this data will be processed and interpreted with the intent of high grading the prospect inventory and completing the work programme on the block within the current licence period.

Commenting on the development, Derek Musgrove, Managing Director of Northern Petroleum Plc said “Investment in French Guyane is consistent with Northern’s strategy to focus its resources in countries with low geopolitical risk. Through its holding in Northpet, Northern has a modest financial exposure to an exploration play that offers significant exploration potential analogous to the recent discoveries made by Tullow offshore Ghana. Tullow’s recent success and experience in these plays will make a significant contribution to mitigate the exploration risks. Northern looks forward to working with Tullow on the next stage in this exciting project.”

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Gas flow and pressure build up measurements from test work at the Grolloo field have now been analysed. Northern can confirm an increased projected rate of production at 7.5 MMSCFD. Grolloo’s first production is scheduled in the fourth quarter of this year.

The Grolloo field in the Drenthe IV licence is one of the smaller of six Netherlands oil and gas fields being developed by the Company and is the fourth of five wells being hydraulically fractured in what has proven to be a highly successful and rewarding production enhancement programme.

“Overall the hydraulic fracturing programme has exceeded even our upside expectations. Now we look forward to bringing the Grolloo gas field onstream at greater levels of production and profit.” stated Derek Musgrove, Managing Director of Northern. “We have other ongoing operations in the Netherlands. The Tiendeveen-1 exploration well spudded on the 12th August is scheduled for completion in October. The hydraulic reservoir fracturing programme at Geesbrug is underway and the results of subsequent flow testing are expected and are eagerly awaited.” added Musgrove.

NPN maintains a 45% licence and working interest with EBN and Dyas having respectively 40% and 15%.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that its wholly owned subsidiary Northern Petroleum Nederland B.V ('NPN') has commenced drilling operations on the exploration well Tiendeveen in the Drenthe III licence on 12 August 2009.

Tiendeveen is sited in the east of The Netherlands, 3.8 kilometers northwest of Northern's Geesbrug gas field development. The estimated mean potential gas in place is 60bcf with an upside P10 potential of 98bcf. The well is expected to take 50 days to reach 3842m measured depth (about 3500m true vertical depth) and log the well.

Licence and working interests:
NPN: 45%
EBN: 40%
Dyas: B.V. 15%

In accordance with the AIM Rules - Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director
Sophie Hull, Head of Corporate Communications

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The FTSE AIM UK50 Index, with effect from 11 August, includes Northern Petroleum Plc (Northern). At the close of trading on Monday 10 August NOP’s shares closed at £1.30p giving it a market capitalisation of approximately £102.6million.

“We are pleased to become a constituent of the FTSE AIM UK50 Index. This reflects our continued growth and development. Our share price has outperformed the AIM All Share Index by 36% over the year to 10th August and the AIM Oil and Gas Index by 48% over the same period. Production from our field developments in The Netherlands is anticipated to exceed original expectations as a result of the successful results of our hydraulic fracturing programme. Once up and running these fields could provide substantial cash flow. Combined with further developments this could help us achieve further momentum.” commented Richard Latham, Chairman, Northern Petroleum Plc.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Derek Musgrove, Managing Director

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 31 July 2009 the Company's issued share capital consists of 78,885,326 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 78,885,326.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Chris Foss, Finance Director
Sophie Hull, Head of Corporate Communications

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces the preliminary award of two new offshore permits, d25G.R-.NP and d26G.R-.NP, covering a total 897 km² expanding its position in the Apennine-Maghreb Thrust Belt, which added to the six permits held jointly with Shell Italia E&P S.p.A (“Shell”), total 5,267km². The interests are held through its wholly owned subsidiary Northern Petroleum (UK) Limited (“NPUK”) which holds the largest licensed exploration acreage in Italy.

The awards are adjacent to the six permits offshore Sicily held jointly with Shell and also to another Northern preliminary award d21G.R-.NP. “The preliminary awards are part of the oil producing Apennine-Maghrebian thrust belt extending under Italian waters west of Sicily. The geological elements there offer significant oil and gas potential in this already recognised province, similar to the large Val d’Agri fields in Southern Italy.” commented Derek Musgrove Managing Director, Northern Petroleum Plc. “The “Thrust Belt” is one of four core areas offshore Italy that contain some of the greatest medium and long term growth potential for the Company. We have already mapped several prospects of a billion barrels plus. These applications were a follow up to the results from reprocessing and mapping of our 2006 seismic survey. We, together with Shell, have subsequently moved forward on the six licences with the recording of a further 2D seismic survey in 2009.”

NPUK will now prepare the required environmental reports and provide an update on the two new awards following completion.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Richard Latham, Chairman
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (   )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   The Royal Bank of Scotland Group plc
    
4. Full name of shareholder(s) (if different from 3.):
   ABN AMRO Bank N.V.
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   22/07/09
    
6. Date on which issuer notified:
   23/07/09
    
7. Threshold(s) that is/are crossed or reached:
   7%
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
   The Royal Bank of Scotland Group plc
   RFS Holdings N.V.
   ABN AMRO Holding N.V.
   ABN AMRO Bank N.V.

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

At the Annual General Meeting (“AGM”) today the Chairman, Richard Latham made the following statement.

“This is an unusual location for an AGM, but it is our pleasure to be here with you in the Forestside & Stanstead Social Club and take the opportunity to show our shareholders the way in which some of our UK operations are conducted. Later today we will visit the Markwells Wood drilling site and one of the older Weald basin oil production sites at Horndean. You will see at firsthand how we take care to fit our operations into this beautiful part of England and interact with our neighbours in the local community.

2008 saw progress with Italian trades and farm outs, most notably to Shell Italia, and an extremely profitable exit from our “non core” gas storage interests at Waalwijk in The Netherlands. Thus we entered 2009 with a further strengthened balance sheet. Net cash and working capital were a combined €52million. This positions us to complete our six field developments onshore The Netherlands and have financial comfort as we enter a new period of growth through further development of existing discoveries and exploration drilling.

The takeover of ATI Oil Plc increased our Proven and Probable reserves by a third to 103mmboe. We now have full management control and flexibility to speed up the development of the very considerable potential of our Italian projects.

In the Netherlands we have seen four very successful hydraulic fracturing operations increasing the production rate potential of our gas fields which are expected to start coming on-stream later this year. The programme has been successful beyond both our and our partners’ expectations.

Given the progress this year I, like you, must note the share price has not seen the response we would have expected. Even whilst understanding the effects of the economic turmoil we have all experienced, I am disappointed though taking small comfort in that our share price has outperformed both the AIM Index and AIM Oil and Gas Index 21%* and 35%* respectively. Being closer to first production in the Netherlands which is expected to commence in a matter of months, we know this will transform Northern and should finally reward us for all our efforts and your patience. It will be the first important milestone in our stated strategy, which may I remind you has remained constant over the years.

Our assets are in geopolitically safe areas. Northern plans to build on its already strong and impressive list of partners in the Netherlands and Italy and reinvest our near term profits into other areas of significant potential within the existing portfolio of more than 50 licences.

The Shell Italia farmin to offshore Sicily has helped to increase interest in our farmout activities. Offshore Italy contains several core areas that we feel offer the greatest medium and long term potential for material growth. As you’ve seen these Italian projects were extensively reported on in the Annual Report & Accounts.

In the Netherlands our technical work has confirmed an additional undeveloped gas discovery in the Andel III licence and three further undeveloped oil and gas discoveries in the adjacent Utrecht licence. We have also entered into agreements that are expected to lead to two further gas discoveries being incorporated into our reserves. I believe that two technical successes should be recognised. At Nieuwendjik the Casing While Drilling operation achieved a European and eastern hemisphere record of 780metres (2,567 feet) drilling. Next month we may exceed this record when drilling the Tiendeveen gas prospect close to the Geesbrug field. We also supported a new Netherlands drilling rig design which has proven its worth at Niewendijk and is currently involved in operations at Geesburg.

For the United Kingdom activities we look forward to a multi well drilling programme. Planning permission has been granted to drill at the Markwells Wood and Havant sites. Both were chosen for their minimal environmental impact. Northern remains deeply conscious of its commitments to being a good neighbour to the local community and is committed to health and safety and rational preservation and enhancement of the environment. Two further wells are being planned nearby in Hampshire and West Sussex, both to appraise oil discoveries.

Undoubtedly we are in a better position than we were a year ago. When the results of the hydraulic fracturing of our fifth Dutch well, Geesburg, are known there may result in a significant upgrading of our production and profitability forecasts and, I might reasonably suggest, our share price. I again mention that the hydraulic fracturing programme has exceeded all our expectations, our reserves have increased by a third, and our balance sheet is stronger. Production and revenues from our development projects in The Netherlands are closer and increase confidence that we will realise the potential we have ahead”.

* Indices v NOP 20th July 2008 – 20th July 2009

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Richard Latham, Chairman
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

At the Annual General Meeting of the Company held today all the resolutions put before the Members were passed.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Richard Latham, Chairman
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company announces that, following the exercise of warrants at 68.5 pence per share to subscribe for ordinary shares on 16 July by an employee, it has made an application pursuant to the authority granted on 30 June 2008 for the admission of 25,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 78,885,326.

It is expected that dealings in the said shares will commence on 23 July 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Chris Foss, Finance Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company announces that, following the exercise of warrants at 68.5 pence per share to subscribe for ordinary shares on 9 July by an employee, it has made an application pursuant to the authority granted on 30 June 2008 for the admission of 20,000 ordinary shares of 5 pence each to trading on AIM. Each new ordinary share will rank pari passu with existing ordinary shares. Following the admission, the total number of ordinary shares in issue will be 78,860,326.

It is expected that dealings in the said shares will commence on 16 July 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Chris Foss, Finance Director
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

A maximum gas flow rate of 16 million standard cubic feet per day (MMSCFD) has been measured by Northern Petroleum Nederland B.V. (NPN) at its Grolloo gas field in the Drenthe IV licence.

“If we were to assume a flow rate of 10 MMSCFD that would, based on a forecast gas price of €0.20 per normal cubic metre, generate an annual revenue for Grolloo of approximately €8million (£6.9million) net to Northern. This figure is based on NPN’s 45% interest and a sustained gas production level supported by a 3480 psi flowing pressure measurement. Grolloo is one of the smaller of the six fields of approximately 93.2 million proven and probable barrels of oil equivalence being developed in the Netherlands by NPN. This is the fourth of a total of five wells to be hydraulically fractured in a very successful enhancement programme, in which results have considerably exceeded expectations.

“The bottom-hole recorders will be retrieved later this month enabling confirmation of the reservoir pressure and final determination of the gas production profile for sales. The field is scheduled to be put on-stream in the fourth quarter of this year.

“Currently the well at the Geesbrug field is being prepared for hydraulic fracturing of the reservoir which has to date been very successful on the first four wells. At the Ottoland field, equipment and permissions are being procured to conduct a longer production flow test of both oil and gas.” commented Derek Musgrove, Managing Director of Northern Petroleum Plc.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc, Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900/61
Sophie Hull, Head of Corporate Communications

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern is pleased to advise shareholders that the High Court of Justice, Chancery Division has confirmed the cancellation of the amount standing to the credit of the share premium account of the Company as at 31 December 2007, being £18.923 million (€23.885 million), and that the Order of Court was delivered to Companies House on 30 June 2009 (the "Effective Date"). The creditors of the Company as at the Effective Date will be protected by the transfer of the applicable balance to the Company's undistributable special reserve. This reserve will be reduced, and the applicable balances transferred to the Company's distributable special reserve, upon settlement of those creditors. The cancellation of share premium was approved by shareholders at the 2008 Annual General Meeting, as reported on 30 June 2008.

The effect of the reorganisation on the capital structure of the Group (once all creditors of the Company, as at the Effective Date, have been paid) is demonstrated by the 31 December 2008 pro-forma capital and reserves summary below:

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X ) Following completion of acquisition of ATI Oil Plc
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Barry James Lonsdale
    
4. Full name of shareholder(s) (if different from 3.):
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   24/06/09
    
6. Date on which issuer notified:
   29/06/09
    
7. Threshold(s) that is/are crossed or reached:
   3%, 4%, 5%, 6% and 7%
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

Northern is pleased to announce that the 2008 Annual Report, incorporating the Notice of Annual General Meeting (“AGM”), has today been posted to shareholders. Additional copies are available by application to the Company Secretary at the Company’s registered office: Martin House, 5 Martin Lane, London, EC4R 0DP.

As previously announced these documents have been available on the Company’s website (http://www.northpet.com) since 22 June 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X ) Following completion of acquisition of ATI Oil Plc
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (  X  )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Barclays PLC
    
4. Full name of shareholder(s) (if different from 3.):
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   25/06/09
    
6. Date on which issuer notified:
   26/06/09
    
7. Threshold(s) that is/are crossed or reached:
   5% to below notifiable %
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X )
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Barclays PLC
    
4. Full name of shareholder(s) (if different from 3.):
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   28/10/09
    
6. Date on which issuer notified:
   29/10/09
    
7. Threshold(s) that is/are crossed or reached:
   5% to below notifiable %
     
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

In conformity with the FSA’s Disclosure and Transparency Rules, Northern would like to notify the market of the following:

As of 24 June 2009 the Company's issued share capital consists of 78,840,326 ordinary shares of 5 pence each with voting rights. Northern does not currently hold shares in Treasury. Therefore, the total number of voting rights in Northern is 78,840,326.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the ordinary shares of Northern under the FSA’s Disclosure and Transparency Rules.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Following the completion yesterday of the acquisition of ATI Oil Plc (“ATI”), and the allotment of Northern shares to ATI shareholders and warrantholders at 120p per share, being the mid market price at close of business on 23 June 2009, the Company has today been informed of changes in certain directors’ shareholdings, which are summarised as follows:

Included in the above newly issued shares are 625 and 375 shares held respectively by the SIPPs of Chris Foss and Graham Heard.

The directors’ total beneficial shareholdings are now 2,405,418 ordinary shares, which represents 3.05 per cent of the issued share capital of the Company.

In addition, following their election to surrender ATI warrants for Northern warrants, the Board has approved the issue of warrants to purchase ordinary shares of 5 pence each in the capital of the Company to directors as follows:

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Further to the announcement released by Northern on 23 May 2009, the Board of Northern is pleased to announce that the acquisition of ATI has become effective and trading in the new Northern Shares is expected to begin at 8.00 a.m. on 25 June 2009.

The latest date for despatch of New Northern Share certificates and crediting of CREST accounts under the Scheme will be 8 July 2009. In accordance with the Scheme, a total of 7,418,480 New Northern Shares will be issued to Scheme Shareholders on the register at 6.00 p.m. on 22 June 2009. In addition, pursuant to the proposals made in the Warrantholder Circular dated 28 April 2009, 279,787 New Northern Shares and 408,750 new warrants over shares in the capital of Northern will be issued to former ATI Warrantholders.

ATI will be withdrawn from trading on PLUS at 16.30 p.m. today.

Terms and expressions used in this announcement shall have the same meanings given to them in the announcements released by Northern on 3 April 2009 and 29 April 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Richard Latham, Chairman
Graham Heard, Exploration & Technical Director

Investec (Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb / Avital Lobel

ATI Oil Plc
Tel: +44 (0) 20 7469 2940
Per Gunnar Loge, Chief Executive Officer

KBR (Financial adviser to ATI)
Tel: +44 (0) 20 3100 8300
Hugh Oram

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Further to the Annual General Meeting (“AGM”) announcement of 22 June, Northern is pleased to advise that shareholders attending the AGM (which starts at 1100 on 22 July) are invited by the Company to a guided tour, commencing after completion of the AGM, of both the Markwells’ Wood site and the Horndean oilfield. Details of arrangements for the day and registration for the tour will be made available to registered shareholders by application to the Company via email to .(JavaScript must be enabled to view this email address).

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Further to the announcement released by Northern on 28 May 2009, the Independent Northern Directors and the Independent ATI Directors are pleased to announce that at today’s Court hearing, the Court sanctioned the Scheme and confirmed the Capital Reduction.

The Scheme will become effective immediately upon a copy of the Court order sanctioning the Scheme and confirming the Capital Reduction and a copy of the minute in relation thereto having been delivered to the Registrar of Companies and registered by the Registrar. This is expected to take place on 24 June 2009.

Expected Timetable of Principal Events

The following times and dates are indicative only:

The New Northern Shares will now, for administrative reasons, be admitted to trading on AIM on 25 June 2009 as opposed to 24 June 2009.

Any changes to the above timetable will be announced and made available on the Company’s website.

Terms and expressions used in this announcement shall have the same meanings given to them in the announcements released by Northern on 3 April 2009 and 29 April 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Richard Latham, Chairman
Graham Heard, Exploration & Technical Director

Investec (Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb / Avital Lobel

ATI Oil Plc
Tel: +44 (0) 20 7469 2940
Per Gunnar Loge, Chief Executive Officer

KBR (Financial adviser to ATI)
Tel: +44 (0) 20 3100 8300
Hugh Oram

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Northern is pleased to announce that the 2008 Annual Report, incorporating the Notice of Annual General Meeting ('AGM'), is now available on the Company's website and will shortly be posted to shareholders.

The text of the AGM Notice is reproduced in full below:

NOTICE IS HEREBY GIVEN that the Annual General Meeting of the Company will be held at Forestside and Stansted Social Club, Forestside, Rowlands Castle, Hampshire, PO9 6ED on 22 July 2009 at 11.00am for the following purposes:

To consider and, if thought fit, pass the following resolutions to be proposed as Ordinary Resolutions:

1. To receive the report of the directors and the audited accounts for the year ended 31 December 2008.

2. To appoint KPMG Audit Plc as auditors, following their appointment during the year by the directors, and to authorise the directors to fix their remuneration.

3. To re-elect C J Foss (who retires from office in accordance with Article 108 of the Company's Articles) as a director of the Company.

4a) To authorise the directors, pursuant to and in accordance with section 80 of the Companies Act 1985 (the 'Act') to allot relevant securities (as defined by the said section 80) up to a maximum aggregate nominal value of £1,770,000 (being approximately 50% of the Company's issued share capital as at the date of this notice), provided that such authority shall expire at the conclusion of the next Annual General Meeting of the Company, except that the Company may, before such expiry, make an offer or agreement which would or might require relevant securities to be allotted after such expiry.

To consider and, if thought fit, pass the following resolutions to be proposed as Special Resolutions:

4b) To authorise the directors be, pursuant to and in accordance with section 95 of the Act, to allot equity securities (as defined in section 94 of the Act) for cash as if sub-section 89(1) of the Act did not apply to the allotment of equity securities pursuant to the authority conferred on them under section 80 of the Act up to the aggregate nominal value of £885,000 (being approximately 25% of the Company's issued share capital as at the date of this notice, of which 11.2% is potentially attributable to warrantholders), such power to expire on the earlier of the conclusion of the next Annual General Meeting of the Company and 15 months after the date of the resolution (but so as to enable the Company, before the expiry of such power, to make offers or agreements which would or might require equity securities to be allotted after such expiry and to enable them to allot equity securities for cash pursuant to such offers or agreements as if the power conferred thereby had not expired).

5. To authorise the Company, generally and unconditionally, to make market purchases (within the meaning of section 163 of the Companies Act 1985) pursuant to and in accordance with section 166 of the Act of fully paid ordinary shares in the capital of the Company upon and subject to the following conditions but otherwise unconditionally:

a) the maximum number of ordinary shares hereby authorised to be purchased is 4,000,000, which is anticipated to represent approximately 5% of the ordinary share capital of the Company as at 22 July 2009;

b) the maximum price which may be paid for each such ordinary share shall be an amount no more than 105% of the average of the middle market quotations for an ordinary share as derived from the Alternative Investment Market of the London Stock Exchange for the five business days immediately preceding the day on which such ordinary share is contracted to be purchased (excluding expenses) and the minimum price which may be paid for such ordinary share shall be the nominal value of such ordinary share at the time of such purchase (excluding expenses); and

c) unless previously varied, revoked or renewed, the authority conferred by this resolution shall expire on the earlier of the date 15 months after the passing of this resolution and at the conclusion of the next Annual General Meeting of the Company after the date on which this resolution is passed, provided that the Company may before such expiry date enter into a contract to purchase ordinary shares under this authority which will or may be completed or executed wholly or partly after the expiration of such authority and may make a purchase of ordinary shares in pursuance of such contract.

By order of the Board

C J Foss
Secretary

Registered Office:
2nd Floor, Martin House
5 Martin Lane
London
EC4R 0DP

Dated 22 June 2009

Notes:

1. A member of the Company entitled to attend and vote at the meeting convened by this Notice may appoint a proxy to attend and vote on a poll in his stead. A proxy need not be a member of the Company. A member may appoint more than one proxy provided that such appointment is in respect of voting rights attaching to different shares.

2. To be valid, the enclosed Form of Proxy must be completed and lodged together with the Power of Attorney or any other authority (if any) under which it is signed, or a notarially certified copy thereof, at the offices of the Company's Registrars, Neville Registrars Limited, Neville House, 18 Laurel Lane, Halesowen, West Midlands B63 3DA not less than forty eight hours before the time appointed for holding the meeting.

3. Completion of the proxy does not preclude a member from attending and voting at the meeting if they so wish.

4. The Company, pursuant to Regulation 41 of the Uncertificated Securities Regulations 2001, hereby specifies that only those shareholders registered on the Register of Members of the Company at 11.00am on 20 July 2009 shall be entitled to attend or vote at the meeting in respect of shares registered in their name at the time. Changes to entries on the relevant Register of Members after this time shall be disregarded in determining the rights of any person to attend or vote at the meeting, notwithstanding any provisions in any enactment, the articles of association of the Company or other instrument to the contrary.

5. The Company, pursuant to Regulation 41(3) of the Uncertificated Securities Regulations 2001, hereby gives notice of its determination that only those shareholders registered on the Register of Members of the Company at the close of business on the date of this notice shall be entitled to receive notice of this meeting.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
   Northern Petroleum Plc
    
2. Reason for the notification (please place an X inside the appropriate bracket/s):
   An acquisition or disposal of voting rights: ( X ) Purchase 173,128 shares
   An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (   )
   An event changing the breakdown of voting rights: (    )
   Other (please specify): (  )
    
3. Full name of person(s) subject to the notification obligation:
   Majedie Asset Management Limited
    
4. Full name of shareholder(s) (if different from 3.):
    
5. Date of the transaction (and date on which the threshold is crossed or  reached if different):
   16/06/09
    
6. Date on which issuer notified:
   18/06/09
    
7. Threshold(s) that is/are crossed or reached:
   Above 5%
    
8. Notified details:
   ……………..
    

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Financial Instruments

Resulting situation after the triggering transaction

Total (A+B)

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:
    ……………..
     
11. Number of voting rights proxy holder will cease to hold:
    ……………..
     
12. Date on which proxy holder will cease to hold voting rights:
    ……………..
     
13. Additional information:
    Majedie Asset Management Ltd is a discretionary Fund Manager. It invests funds on behalf of its clients on a segregated basis as well as through its pooled investment vehicle Majedie Asset Management Investment Fund Company.
     
14. Contact name:
    Chris Foss, Finance Director
     
15. Contact telephone number:
    020 7469 2900

Northern Petroleum Plc (the “Company”) announces that in The Netherlands its wholly owned subsidiary Northern Petroleum Nederland B.V (“NPN”) has achieved success in hydraulically fracturing the main Carboniferous reservoir in the Grolloo gas field. The field is scheduled to be put on-stream in the fourth quarter of this year.

The subsequent gas flow tests which are scheduled to last five days have been interrupted to install a second flare stack for environmental considerations. This was also the case at the Brakel Gas field since flow rates in excess of 10 million cubic feet a day tend to emit high heat and noise levels as well as the high visible flare making the success obvious to the public.

Quantitative details of the test results will only be announced upon completion of current operations.

NPN is currently undertaking a six field development programme to bring into production proven and probable reserves of some 100 million barrels of oil equivalence of which 45.5 million barrels are net to Northern.

NPN is currently undertaking the hydraulic fracturing of the reservoirs in five wells scheduled to be put into production in the first phase of development from the existing wells. In the region there has been little application of hydraulic fracturing to enhance production rates other than at the Waalwijk gas field which is also under NPN’s management.

Derek Musgrove, Managing Director, Northern Petroleum Plc commented:

“This is our fourth successful hydraulic fracturing operation in the Netherlands. The previous three were successful with an outstanding result at Brakel. On this occasion we should allow ourselves to be optimistic that the operations at Grolloo will achieve comparable results. So far the results have been very encouraging but it is still necessary to await completion of the full test programme before formally accepting that the production flow rate potential has been upgraded. We are looking forward to having the Grolloo gas field in production before the end of the year.”

Licence and working interests:

NPN B.V.: 45%
EBN: 40%
Dyas B.V.: 15%

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern Petroleum Plc., Mr Graham Heard CGeol FGS, who has over 35 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

The Company has been informed that Richard Latham, Chairman of Northern, has today transferred 56,000 ordinary shares of the Company from his personal holdings to his SIPP at a price of 120p per share, being the mid market price at start of business today. This transfer does not alter Mr Latham’s total beneficial shareholding of 740,087 ordinary shares, which represents 1.04 per cent of the issued share capital of the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern announces that Blue Oar Securities Plc, one of the Company’s Joint Brokers, has changed its name to Astaire Securities Plc.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Astaire Securities
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern Petroleum Plc announces that the Nieuwendijk well drilled by its wholly owned subsidiary Northern Petroleum Nederland B.V. (“Northern”) has reached a total depth of 2677 metres having penetrated the primary Bunter sandstone reservoirs. Encouragingly significant oil shows to surface and substantial drilling fluid losses occurred during the drilling of this section. These have been evaluated by electric logs and pressure tests, the results indicating the probability that the levels of oil saturations are not sufficient to warrant significant costs of testing.

These results along with other information obtained from the well will be integrated into our interpretation of the area around the Ottoland and Brakel fields enabling a new evaluation to be made of the nearby and adjacent structures. The velocity information is rapidly being incorporated into these depth maps.

Discussions are ongoing with a third party as to a possible geothermal energy application for the site and the well. With a bottom hole temperature of over 90ºC this is an interesting fall back of commercial potential for depleted and unsuccessful wells drilled in this densely populated region.

Northern’s activities in The Netherlands will now concentrate and intensify on the programme for the development of its six onshore fields, Brakel, Geesbrug, Grolloo, Ottoland, Papekop and Wijk en Alburg, together estimated to contain 45.5 million barrels of oil equivalence (“boe”) net to Northern. This drilling rig, following a few days for modifications is being mobilised to operations on the Geesbrug gas field to prepare for hydraulic fracturing (“Fraccing”) of the gas bearing Permian (Rotliegend) and Carboniferous (Dalen and Hardenburg) reservoirs. Thereafter the rig will move to the Tiendeveen gas prospect adjacent to the Geesbrug gas field, targeting 67bcf gas in place. The Fraccing operations at the Grolloo gas field will commence shortly and do not require this rig.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

Derek Musgrove Managing Director stated - “The Nieuwendijk well result should be viewed in context of a € 2-3 million net cost to Northern and not distract from the main activity of developing production from the Brakel, Geesbrug, Grolloo, Ottoland, Papekop and Wijk en Alburg fields 45.5 million boe of reserves scheduled start coming on-stream later this year.

“Drilling the well did confirm our interpretation that the structure should contain oil, being in close proximity to the Ottoland oil field. However, the result of the electric log interpretation and pressure tests indicated that the oil accumulation has been breached and insufficient oil remains to be exploited. A disappointment, but in the overall Netherlands drilling programme Northern has an additional undeveloped gas discovery in the Andel III Licence and further undeveloped gas discoveries and significant oil and gas exploration prospects in the adjacent Utrecht licence. These discoveries form Northern’s continuing programme in the region next year.”

“Our interest in geothermal energy will increase with activity. It has a potential to provide a significant salvage value to unsuccessful drilling efforts in populated areas where the reservoir temperatures are around 90º - 100ºC.

“I note a good operational performance was achieved using a new rig drilling its first well. No injuries or lost time accidents occurred and it was a remarkably successful effort for our first use of drilling with casing technology. A European record was achieved, which we plan to exceed at Tiendeveen this summer.”

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Blue Oar
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern is pleased to announce that Jefferies International Limited (“Jefferies”) has been appointed as Nominated Adviser to the Company with immediate effect. Jefferies and Blue Oar Securities continue to act as Joint Brokers to the Company.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Jefferies International
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Blue Oar
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Further to the announcement released by Northern on 29 April 2009 and the posting of the Circular, the Independent Northern Directors and the Independent ATI Directors are pleased to announce that at today’s Court Meeting, the required majority of Scheme Shareholders approved the Scheme without modification. At the subsequent General Meeting also held today, Scheme Shareholders passed the proposed resolution, as set out in the notice of General Meeting dated 28 April 2009 (the “Special Resolution”).

The number of votes for and against the Scheme at the Court Meeting were as follows:

At the General Meeting, the Special Resolution was passed unanimously on a show of hands.

The Scheme and the associated Capital Reduction will also require the subsequent sanction and confirmation of the Court.

Expected Timetable of Principal Events

The following times and dates are indicative only and will depend, amongst other things, on the dates upon which the Court sanctions the Scheme and confirms the Capital Reduction and whether the Conditions are either satisfied or, if capable of waiver, waived.

Terms and expressions used in this announcement shall have the same meanings given to them in the announcements released by Northern on 3 April 2009 and 29 April 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Richard Latham, Chairman
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

ATI Oil Plc
Tel: +44 (0) 20 7469 2940
Per Gunnar Loge, Chief Executive Officer

KBR (Financial adviser to ATI)
Tel: +44 (0) 20 3100 8300
Hugh Oram

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Further to the announcement released by Northern on 29 April 2009, the Independent Northern Directors and the Independent ATI Directors are pleased to announce that a meeting of ATI Warrantholders was held at 10.00 am this morning, at which the Extraordinary Resolution was proposed to seek ATI Warrantholders’ consent (a) to the Capital Reduction and (b) to certain changes to the terms of the ATI Warrants.

The Independent Northern Directors and the Independent ATI Directors are pleased to announce that at the meeting of ATI Warrantholders the Extraordinary Resolution was duly passed.

The results of the voting were as follows:

The Court Meeting of holders of ATI Shares will start at 11.00 am and the General Meeting of holders of ATI Shares will start at 11.15 am (or as soon thereafter as the preceding Court Meeting has been concluded or adjourned) on 28 May 2009 at Martin House, 5 Martin Lane, London, EC4R ODP.

Terms and expressions used in this announcement shall have the same meanings given to them in the announcements released by Northern on 3 April 2009 and 29 April 2009.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Richard Latham, Chairman
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

ATI Oil Plc
Tel: +44 (0) 20 7469 2940
Per Gunnar Loge, Chief Executive Officer

KBR (Financial adviser to ATI)
Tel: +44 (0) 20 3100 8300
Hugh Oram

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Northern Petroleum Plc is pleased to announce its final results for the year ended 31 December 2008. These results reflect the continued progress at the Company, with significant increases in both profit and cash flow from its operational activity to add to the significant asset trading profits that have once again been generated. Northern continues to focus on bringing its Netherlands developments on stream, but also has a range of other projects which offer very high potential with the right spread of geological risk and low political risk in many different proven petroleum systems.

Copies of this results announcement are today being posted to the shareholders of ATI Oil Plc (“ATI”) ahead of the Court and General Meetings of ATI shareholders that are scheduled for 28 May.

There will be a presentation for analysts at 12.45 on 18 May at the offices of Buchanan Communications, 45 Moorfields, EC2Y 9AE. Analysts who are unable to attend in person will also be able to participate via conference call from 12.30 that morning, and should contact Ben Romney at Buchanan Communications before 12.15 on 18 May for dial in information.

The results presentation will be made available on the Company’s website, www.northpet.com, in due course.

(NB. A Restatement has been issued)

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Following Northern Petroleum Plc’s announcement as of 10.48am, Monday 18 May 2009, the issuer wishes to advise that the announcement has, due to formatting difficulties been corrected to replace the Euro symbol with EUR. In addition corrections have been made to the Consolidated Statement of Changes in Equity on page 10 to restate errors in the “At 31 December 2006 as reported” and the 2006 “Capitalisation of salaries” lines.

The full announcement follows:

18 May 2009
Final Audited Results for the Year Ended 31 December 2008

Northern Petroleum Plc is pleased to announce its final results for the year ended 31 December 2008. These results reflect the continued progress at the Company, with significant increases in both profit and cash flow from its operational activity to add to the significant asset trading profits that have once again been generated. Northern continues to focus on bringing its Netherlands developments on stream, but also has a range of other projects which offer very high potential with the right spread of geological risk and low political risk in many different proven petroleum systems.

Copies of this results announcement are today being posted to the shareholders of ATI Oil Plc (“ATI”) ahead of the Court and General Meetings of ATI shareholders that are scheduled for 28 May.

There will be a presentation for analysts at 12.45 on 18 May at the offices of Buchanan Communications, 45 Moorfields, EC2Y 9AE. Analysts who are unable to attend in person will also be able to participate via conference call from 12.30 that morning, and should contact Ben Romney at Buchanan Communications before 12.15 on 18 May for dial in information.

The results presentation will be made available on the Company’s website, www.northpet.com, in due course.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern Petroleum Plc announces that its wholly owned subsidiary, Northern Petroleum (UK) Limited (“Northern”), has been advised of the preliminary award of two offshore Italian permits, d63F.R-.NP and d64F.R-.NP, covering a total of 1470 km². Northern has been invited to prepare the required environmental impact study on which work will shortly commence.

The awards are adjacent to offshore preliminary award d59F.R-.NP, which is close to the gas fields of Luna, Hera Lacinia, Linda and Lavinia. These fields represent a significant portion of the Italian gas reserves discovered to date. The applications cover the offshore extension of the Crotone and Rossano basins, where previous operators acquired high quality 3D seismic data.

Northern holds a 100% interest in the licences, but a subsidiary of ATI Oil Plc (“ATI”), in which Northern holds a 37.04% equity interest, has a 50% pari passu commercial interest in the licences (giving a current net beneficial interest to Northern of 68.52%). ATI is currently the subject of an Offer by Northern Petroleum Plc that was announced on 3 April 2009.

Graham Heard, Exploration & Technical Director, commented:

“We are delighted to have received these two awards, which are adjacent to the highly prospective d59F.R-.NP preliminary award, so quickly following our applications of last October.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern Petroleum Plc announces that its wholly owned subsidiary, Northern Petroleum (UK) Limited (“Northern”) which is undertaking a three exploration drilling programme in the Po Valley region of Italy, has this morning suspended drilling operations in Italy on the Savio 1x site. The well, located in the prolific gas producing area of Emilia Romagna in the Po Basin, encountered thicker than expected sandstone formations but examination of the electric logs suggests that the gas contained in them is insufficient to warrant testing.

The Savio 1x well was Northern’s first well drilled in Italy as Operator. The drilling operations are expected to have been performed at less than the budgeted costs even though the well was drilled an extra 280 meters (919 feet) deeper than planned. Planning of the lower risk wells on the Cerasa and Longastrino licences is in progress.

As announced on 24 October 2008, Northern reduced its business risks and the call upon its cash balances through a farmout agreement with Avobone Italy S.r.l. (“Avobone”), a member of the Indofin Group. Avobone paid 40% of the well costs, with the licence interests held as follows:

A subsidiary of ATI Oil Plc (“ATI”) currently has a commercial interest equal to half that of Northern. ATI is the subject of an Offer by Northern Petroleum Plc announced on 3rd April 2009.

Derek Musgrove, Managing Director, stated:

“The Savio well was the first of Northern’s three well programme in the Po Valley. Wells on the Cerasa and Longastrino licences are at the planning design stage. Drilling is also currently underway at Nieuwendijk, which together with Tiendeveen, forms a two well exploration drilling programme in the Netherlands quite separate to our six oil and gas field development projects. We must now look forward to short term success in those wells”.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Casing While Drilling (CWD)

Northern’s wholly owned subsidiary: Northern Petroleum Nederland B.V. (NPN) has successfully used Casing While Drilling (CWD) technology for the first 780m (2,567 ft) section of the Nieuwendijk well. CWD is an innovative technology used for simultaneously drilling and casing a well. The process enabled a safer and speedier operation to reach to target depth by eliminating conventional drill string tripping and associated risks. A Hughes Christensen drillable 12-1/4” EZCase bit was used. This is the longest CWD run with this system in the Eastern Hemisphere.

NPN has utilised casing drilling technology on the automated drilling rig (LOC 400). The rig was newly fabricated by Northern Dutch Drilling Company (NDDC) and the CWD run was the first well for the rig and crew since manufacture.

The Hughes Christensen EZCase bit drilled the 780m from surface in 71 hours with a Rate of Penetration (ROP) of 11 m/hr (36 ft/hr) using controlled drilling. The casing was successfully cemented through the bit with no difficulty. The EZCase bit was then drilled-out through its centre in 1.5 hours using a specially designed 8-1/2” Polycrystalline Diamond Compact (PDC) bit. This bit has enabled both drill-out of the casing bit and continuous drilling ahead for the intermediate section of the hole.

The well is currently conventionally drilling ahead towards its reservoir objective.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern is pleased to announce that its subsidiary, NP Weald Limited (“NP Weald”), has been offered Block SU60 in an “out of round” offer which was announced by the DECC on 4 December 2008 and closed on 9 March 2009. The Block will be licensed as PEDL 256 with NP Weald as Operator, and is located in the Weald Basin, adjacent to PEDL 155. The Block contains a mapped extension of the Havant exploration prospect from PEDL 155 in which Northern also holds a 50% interest.

The PEDL 256 partners will be:

NP Weald

Magellan Petroleum (N.T.) Pty Ltd

Encore Oil Plc

Oil & Gas Investments Limited

Graham Heard, Exploration & Technical Director of Northern, commented:

“We are very pleased to have been offered Block SU60. The Havant prospect is considered to contain 16 million barrels of oil in place and the structure has similarities to the Horndean field located 5 km to the north. A planning consent has been granted for a drilling site next to the A3(M), previously announced on 12th March 2009, from which to drill an exploration well.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Northern is pleased to announce that its subsidiary, NP Weald Limited (“NP Weald”), has been offered Block SU60 in an “out of round” offer which was announced by the DECC on 4 December 2008 and closed on 9 March 2009. The Block will be licensed as PEDL 256 with NP Weald as Operator, and is located in the Weald Basin, adjacent to PEDL 155. The Block contains a mapped extension of the Havant exploration prospect from PEDL 155 in which Northern also holds a 50% interest.

The PEDL 256 partners will be:

NP Weald

Magellan Petroleum (N.T.) Pty Ltd

Encore Oil Plc

Oil & Gas Investments Limited

Graham Heard, Exploration & Technical Director of Northern, commented:

“We are very pleased to have been offered Block SU60. The Havant prospect is considered to contain 16 million barrels of oil in place and the structure has similarities to the Horndean field located 5 km to the north. A planning consent has been granted for a drilling site next to the A3(M), previously announced on 12th March 2009, from which to drill an exploration well.”

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

NORTHERN PETROLEUM PLC POSTING OF SCHEME CIRCULAR

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION

Recommended Proposals for the acquisition of ATI Oil plc by Northern Petroleum plc to be effected by way of a Scheme of Arrangement under Part 26 of the Companies Act 2006

On 3 April 2009, the Independent Northern Directors and the Independent ATI Directors announced that they had reached agreement on the terms of a recommended acquisition by members of the Northern Group of the entire issued and to be issued share capital of ATI not already owned by Northern, to be implemented by means of a court-sanctioned scheme of arrangement under Part 26 of the Companies Act 2006, which will include the Capital Reduction (the "Scheme").

The Independent Northern Directors and the Independent ATI Directors are pleased to announce that the Circular, which sets out, amongst other things, the full terms and conditions of the Proposals and an explanatory statement, together with the action to be taken by Scheme Shareholders, was posted to holders of ATI Shares on 28 April 2009 outside normal business hours. Notices convening the Court Meeting and the General Meeting are contained in the Circular. The Court Meeting will start at 11.00am and the General Meeting will start at 11:15 am (or as soon thereafter as the preceding Court Meeting has been concluded or adjourned) on 28 May 2009 at Martin House, 5 Martin Lane, London EC4R 0DP. Subject to the satisfaction or waiver of the conditions of the Proposals, it is currently expected that the Proposals will become effective on 24 June 2009. If any of the expected dates change, Northern will give adequate notice of the change by issuing an announcement through a Regulatory Information Service.

Copies of the Circular are displayed on the Northern website http://www.northpet.com and are also available for inspection at the offices of Berwin Leighton Paisner LLP at Adelaide House, London Bridge, London EC4R 9HA.

A circular to ATI Warrantholders (the “Warrantholder Circular”) was also posted on 28 April 2009 outside normal business hours containing certain proposals to ATI Warrantholders in connection with the Scheme. A notice convening a meeting of ATI Warrantholders, at which an extraordinary resolution (the “Extraordinary Resolution”) is proposed to seek ATI Warrantholders’ consent (a) to the Capital Reduction and (b) to certain changes to the terms of the ATI Warrants, is set out in an appendix to the Warrantholder Circular.

Northern has received, in aggregate, irrevocable commitments to vote in favour of the Extraordinary Resolution in respect of 5,160,000 ATI Warrants, representing approximately 70.6 per cent. of the ATI Shares attributable to the ATI Warrants currently in issue.

Terms and expressions used in this announcement shall, unless the context otherwise requires, have the same meanings as given to them in the announcement of 3 April 2009.

Download the Circular to ATI Shareholders (PDF)

Download the Circular to ATI Warrantholders (PDF)

Enquiries:

Northern
Richard Latham, Chairman
Graham Heard, Exploration & Technical Director
Tel: + 44 (0)20 7469 2900

Investec (financial adviser to Northern)
Michael Ansell Patrick Robb Avital Lobel
Tel: +44 (0)20 7597 5000

Buchanan Communications (Analysts)
Tim Thompson / Ben Romney
Tel: +44 (0)20 7466 5000

ATI
Per Gunnar Loge, Chief Executive Officer
Tel: +44 (0)20 7469 2940

KBR (financial adviser to ATI)
Hugh Oram
Tel: +44 (0)20 3100 8300

This announcement is not intended to be and does not constitute, or form part of, any offer to sell or invitation to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of, any securities or the solicitation of any vote or approval in any jurisdiction pursuant to the Proposals or otherwise, nor shall there by any sale, issue or transfer of the securities referred to in this announcement in or into any jurisdiction in contravention of any applicable law. The Proposals will be made solely through the Circular, which will contain the full terms and conditions of the Proposals, including details of how to vote in respect of the Proposals. Scheme Shareholders are advised to read carefully the formal documentation in relation to the Proposals, once it is dispatched. Any acceptance or other response to the Proposals should be made only on the basis of the information in the Circular. In deciding whether or not to approve the Scheme, Scheme Shareholders must rely solely on the terms and conditions of the Proposals and the information contained, and the procedures described, in the Circular.

The directors of Northern accepts responsibility for the information contained in this announcement, except for the information in this announcement relating to ATI, the directors of ATI and their close relatives and related trusts and other Interested Persons (as defined below) and persons acting in concert with, and associates of, ATI. Subject to the foregoing, to the best of the knowledge and belief of the directors of Northern (who have taken all reasonable care to ensure that such is the case), the information contained in this announcement for which they are responsible is in accordance with the facts and does not omit anything likely to affect the import of that information.

The directors of ATI accept responsibility for the information contained in this document concerning ATI, themselves and their close relatives and related trusts and other Interested Persons (as defined below) and persons acting in concert with, and associates of, ATI. To the best of the knowledge and belief of the directors of ATI (who have taken all reasonable care to ensure that such is the case), the information contained in this announcement for which they are responsible is in accordance with the facts and does not omit anything likely to affect the import of that information.

The Independent ATI Directors each accept responsibility for any opinion attributed to the Independent ATI Directors contained in this announcement, including the unanimous intention to recommend the Proposals.

Investec, which is authorised and regulated in the UK by the FSA, is acting exclusively as financial adviser to Northern in relation to the Proposals and the matters referred to in this announcement and is not acting for any other person in connection with the Proposals and will not be responsible to anyone other than Northern for providing the protections afforded to clients of Investec or for providing advice in relation to the Proposals or any other matters referred to in this announcement.

KBR which is authorised and regulated in the UK by the FSA, is acting exclusively as financial adviser to ATI and no-one else in connection with the Proposals and the matters referred to in this announcement and is not acting for any other person in connection with the Proposals and will not be responsible to anyone other than ATI for providing the protections afforded to clients of KBR or for providing advice in relation to the Proposals or any other matters referred to in this announcement.

This announcement has been prepared for the purpose of complying with English law and the Takeover Code, and the information disclosed may not be the same as that which would have been disclosed if this announcement had been prepared in accordance with the laws of jurisdictions outside the UK.

Any person (including, without limitation, any custodian, nominee and trustee) who would, or otherwise intends to, or who may have a contractual or legal obligation to, forward this announcement and/or the Circular and/or any other related document to any jurisdiction outside the UK should inform themselves of, and observe, any applicable legal or regulatory requirements of their jurisdiction before taking any action.

FORWARD LOOKING STATEMENTS

This announcement, including information included or incorporated by reference in this announcement, may contain "forward-looking statements" concerning Northern and ATI. These forward-looking statements can be identified by the fact that they do not relate only to historical or current facts. Generally, the words "will", "may", "should", "continue", "believes", "expects", "intends", "anticipates”, “plan”, “projects”, “forecast”, “estimate” or similar expressions identify forward-looking statements. The forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. Many of these risks and uncertainties relate to factors that are beyond the companies' abilities to control or estimate precisely, such as future market conditions and the behaviours of other market participants, and therefore undue reliance should not be placed on such statements. Northern and ATI assume no obligation and do not intend to update these forward-looking statements, except as required pursuant to applicable law.

DEALING DISCLOSURE REQUIREMENTS

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, "interested" (directly or indirectly) in 1 per cent. or more of any class of "relevant securities" of Northern or ATI, all "dealings" in any "relevant securities" of that company, (including by means of an option in respect of, or a derivative referenced to, any such "relevant securities") must be publicly disclosed by no later than 3.30 p.m. (London time) on the business day following the date of the relevant transaction. This requirement will continue until the date on which the Proposals become effective, lapse or are otherwise withdrawn or on which the "offer period" otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an "interest" in "relevant securities" of Northern or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all “dealings” in “relevant securities” of ATI or Northern by ATI or Northern, or by any of their respective “associates”, must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose "relevant securities" "dealings" should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

"Interests in securities" arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an "interest" by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a "dealing" under Rule 8, you should consult the Panel.

OVERSEAS TERRITORIES

The distribution of this announcement in jurisdictions other than England and Wales may be restricted by law and therefore any persons who are subject to the laws of any jurisdiction other than England and Wales should inform themselves about, and observe, any applicable requirements. In particular, no offer will be made, directly or indirectly, in or into, or by use of the mails of, or by any means or instrumentality (including, without limitation, facsimile transmission, internet, email, telex or telephone) of interstate or foreign commerce of, or any facility of a national state or other securities exchange of a Prohibited Territory and subject to certain exceptions no offer will be capable of acceptance by any such use, means instrumentality or facility from within any Prohibited Territories. Copies of this announcement and any related offer documentation are not being, will not be, and must not be, mailed or otherwise distributed or sent in or into any Prohibited Territory.

This announcement is not intended to, and does not, constitute or form any part of an offer to sell or an invitation to purchase or subscribe for any securities or the solicitation of an offer to buy or subscribe for any securities nor shall there be any sale, issuance or transfer of the securities referred to in the announcement in the United States or any jurisdiction in contravention of applicable law.

The New Northern Shares have not been, and will not be, registered under the US Securities Act of 1933, as amended (the "Securities Act"), or under the securities laws of any state, district, province or other jurisdiction of the United States, Canada, Australia, the Republic of South Africa, the Republic of Ireland, Japan or any other Prohibited Territory. No regulatory clearances in respect of the New Northern Shares have been, or will be, applied for in any state, province, territory or jurisdiction other than the United Kingdom. Accordingly, unless an exemption under relevant securities laws is applicable, the New Northern Shares are not being, and may not be, offered, sold, resold, delivered, distributed or otherwise transferred, directly or indirectly, in or into any Prohibited Territory or to or for the account or benefit of any resident of a Prohibited Territory.

The availability of an offer to Scheme Shareholders who are not resident in, and citizens of, the United Kingdom may be affected by the laws of the relevant jurisdictions in which they are located or of which they are citizens. Such persons should inform themselves of, and observe, any applicable legal or regulatory requirements of their jurisdictions. Further details in relation to overseas shareholders will be contained in the Circular.

This announcement has been prepared for the purpose of complying with English law and the Takeover Code and the information disclosed may not be the same as that which would have been disclosed if this announcement had been prepared in accordance with the laws of jurisdictions outside England and Wales.

Further to the announcement released by Northern on 3 April 2009 in accordance with rule 2.5 of the Takeover Code (the “2.5 Announcement”) the Independent Northern Directors and the Independent ATI Directors are pleased to announce, in accordance with rule 8.4 of the Takeover Code, that in addition to the irrevocable commitments referred to in the 2.5 Announcement and in the subsequent announcements on 21 April 2009 and 22 April 2009, Northern has now received a further irrevocable commitment from the following person to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals:

The above irrevocable commitments will continue to be binding in the event that the Proposals are implemented by way of a takeover offer and in the event of a higher competing offer for ATI.

Accordingly, Northern has now received, in aggregate, irrevocable commitments to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals in respect of 49,463,000 ATI Shares, representing approximately 52.5 per cent. of the current issued share capital of ATI or 83.3 per cent of the current issued share capital of ATI not controlled by members of the Northern Group.

Terms used in this announcement have the same meaning as in the 2.5 Announcement.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb / Avital Lobel

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Further to the announcement released by Northern on 3 April 2009 in accordance with rule 2.5 of the Takeover Code (the “2.5 Announcement”) the Independent Northern Directors and the Independent ATI Directors are pleased to announce, in accordance with rule 8.4 of the Takeover Code, that in addition to the irrevocable commitments referred to in the 2.5 Announcement and in the subsequent announcement on 21 April 2009, Northern has now received further irrevocable commitments from the following persons to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals:

The above irrevocable commitments will continue to be binding in the event that the Proposals are implemented by way of a takeover offer and in the event of a higher competing offer for ATI.

Accordingly, Northern has now received, in aggregate, irrevocable commitments to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals in respect of 48,463,000 ATI Shares, representing approximately 51.4 per cent. per cent. of the current issued share capital of ATI or 81.7 per cent of the current issued share capital of ATI not controlled by members of the Northern Group.

Terms used in this announcement have the same meaning as in the 2.5 Announcement.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Northern announces that its wholly owned subsidiary Northern Petroleum Nederland B.V (“NPN”) has commenced drilling operations on the exploration well Nieuwendijk-1 in the Andel III licence at 2300 on 20 April 2009 using a newly fabricated rig owned and operated by the Northern Dutch Drilling Company located in Drachten, The Netherlands.

The prospect is close to the Ottoland field. It has a mean estimated size of 56 million barrels of oil in place. Upon completion the activities will move to the Tiendeveen site in the Drenthe III licence in the east of The Netherlands.

Licence and working interests:

NPN: 45%
EBN: 40%
Dyas: B.V. 15%

Post drilling NPN’s interests in the Nieuwendijk and Tiendeveen wells will be 22.5%.

In accordance with the AIM Rules – Guidance for Mining and Oil & Gas Companies, the information contained in this announcement has been reviewed and signed off by the Exploration and Technical Director of Northern, Mr Graham Heard CGeol FGS, who has over 30 years experience as a petroleum geologist.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Michael Kinirons

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney

Further to the announcement released by Northern on 3 April 2009 in accordance with rule 2.5 of the Takeover Code (the “2.5 Announcement”) the Independent Northern Directors and the Independent ATI Directors are pleased to announce, in accordance with rule 8.4 of the Takeover Code, that in addition to the irrevocable undertakings referred to in the 2.5 Announcement, Northern has now received further irrevocable commitments from the following person to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals:

Barry Lonsdale, who previously was the beneficial owner of the above shares, is now the legal owner of the shares and as such the irrevocable commitment signed by him and referred to in the 2.5 Announcement now becomes effective over these additional 1,200,000 shares.

The above irrevocable commitment will continue to be binding in the event that the Proposals are implemented by way of a takeover offer and in the event of a higher competing offer for ATI.

Accordingly, Northern has now received, in aggregate, irrevocable commitments to vote in favour of the resolutions to be proposed at the Court Meeting and the General Meeting to implement the Proposals in respect of 48,428,000 ATI Shares, representing approximately 51.4 per cent. per cent. of the current issued share capital of ATI or 81.6 per cent of the current issued share capital of ATI not controlled by members of the Northern Group.

Terms used in this announcement have the same meaning as in the 2.5 Announcement.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

The directors of Northern accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors of Northern (having taken all reasonable care to ensure that such is the case) the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.

This announcement will shortly be published in accordance with Rule 19.11 of the Takeover Code on Northern’s website, http://www.northpet.com, in the news section.

Dealing Disclosure Requirements

Under the provisions of Rule 8.3 of the Takeover Code, if any person is, or becomes, 'interested' (directly or indirectly) in 1% or more of any class of 'relevant securities' of the Company or ATI, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of the Company or ATI, they will be deemed to be a single person for the purpose of Rule 8.3.

Under the provisions of Rule 8.1 of the Takeover Code, all 'dealings' in 'relevant securities' of the Company or ATI by the Company or ATI, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction.

A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk.

'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities.

Terms in quotation marks are defined in the Takeover Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel.

Investec Investment Banking, a division of Investec Bank plc ("Investec"), which is authorised and regulated in the United Kingdom by the FSA, is acting for Northern and for no-one else in connection with the Proposals and the matters referred to in this announcement and will not be responsible to anyone other than Northern for providing the protections afforded to customers of Investec or for providing advice in connection with the matters set out in this announcement.

Northern Petroleum Plc announces that on Tuesday 21 April and Wednesday 22 April 2009, the Company will be hosting an Analyst and Press site visit to its operations in the Netherlands.

The visit will involve a view of drilling operations at Nieuwendijk and the gas production facilities at Waalwijk, as well as a tour of the Ottoland Oil Field.

The objective is to enable Analysts and Press to gain a more in-depth awareness and understanding of Northern Petroleum’s business.

No new material information will be released. For further information on the Group and its activities please refer to the website at www.northpet.com.

For further information please contact:

Northern Petroleum Plc
Tel: +44 (0) 20 7469 2900
Derek Musgrove, Managing Director
Chris Foss, Finance Director
Graham Heard, Exploration & Technical Director

Investec (NOMAD and Financial Adviser)
Tel: +44 (0) 20 7597 5000
Michael Ansell / Patrick Robb

Blue Oar (Joint Broker)
Tel: +44 (0) 20 7448 4400
Jerry Keen / Toby Gibbs

Jefferies International (Joint Broker)
Tel: +44 (0) 20 7029 8000
Chris Snoxall / Schuyler Evans

Bishopsgate Communications (Press)
Tel: +44 (0) 20 7562 3350
Nick Rome / Maxine Barnes

Buchanan Communications (Analysts)
Tel: +44 (0) 20 7466 5000
Tim Thompson / Ben Romney