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