Additional Listing

21 May 2007 08:16

For immediate release: 21 May 2007

Northern Petroleum Plc ("the Company") Additional Listing

The Company announces that, following the exercise of warrants on 17 May 2007 to subscribe for ordinary shares, it has made an application pursuant to the authority granted on 26 July 2006 for the admission of 73,000 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 70,492,851.

It is expected that dealings in the said shares will commence on 29 May 2007.

---ENDS---

Northern Petroleum Plc Tel: +44 (0) 20 7743 6080

Chris Foss, Finance Director

Bishopsgate Communications Limited Tel: +44 (0) 20 7562 3350

Nick Rome / Maxine Barnes

Notes to Editors:

Northern Petroleum Plc is an AIM listed oil and gas production, development and exploration company with core interests under its management in The Netherlands, Italy and the United Kingdom.

Northern is currently embarked upon a programme to place two oil fields and four gas fields into production with works on the first two, Ottoland and Brakel starting in March and April 2007.

The Company has recently acquired the management interests in the producing Waalwijk gas field where it intends to implement plans to increase late phase gas, production and move to develop a 30 Bcf underground gas storage facility alongside Star Energy and Essent. The NPN deal with Dyas is the second gas production acquisition in 2007 to date.

Northern's Netherland partner list is impressive.

The Company has the second largest exploration position in Italy of licences under management where activities can be expected to pick-up as the result of the extra funds now available. In addition the Company has announced plans to drill a projected eastward extension of the producing Horndean oil field in West Sussex and another exploration well in the county.

Further information on Northern is available at www.northpet.com.