ABERDEEN – 13 September 2007 – ConocoPhillips (U.K.) Limited, as operator of the 44/19b-6 exploration well, announces the successful discovery of the Harrison prospect in the Southern North Sea, United Kingdom Continental Shelf. Drilled on behalf of the P.1139 licensees, the well encountered approximately 50 feet of gas column in the target Carboniferous Lower Ketch formation. The well is the fifth successful exploration well in succession for the partner group on this play and was drilled to a total depth of 14,070 feet. Drilling and well evaluation were completed ahead of schedule and under budget. The drill stem test flowed hydrocarbons to the surface and confirmed productivity of the reservoir.

Future evaluation will focus on the optimum development concept for this discovery, which will be tied into the Caister Murdoch System (CMS) infrastructure, 20 kilometres to the southwest.

John Warrender, manager of ConocoPhillips' Southern North Sea Operating Unit, said the discovery "adds significantly to our portfolio of commercial discoveries in this area, and will help to ensure continuity of production from this part of the North Sea."

ConocoPhillips is an integrated petroleum company with interests around the world. For more information, go to www.conocophillips.com.

- # # # -

CONTACTS:
Kathleen Denholm (UK media) - (0)1224 205346
Sandra Ross (UK media) - (0)1224 205821

CAUTIONARY STATEMENT FOR THE PURPOSES OF THE "SAFE HARBOR" PROVISIONS OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995
This press release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that contain projections about our revenues, income, earnings and other financial items, our plans and objectives for the future, future economic performance, or other projections or estimates about our assumptions relating to these types of statements. These statements usually relate to future events and anticipated revenues, earnings, business strategies, competitive position or other aspects of our operations or operating results. In many cases you can identify forward-looking statements by terminology such as "anticipate," "estimate," "believe," "continue," "could," "intend," "may," "plan," "potential," "predict," "should," "will," "expect," "objective," "projection," "forecast," "goal," "guidance," "outlook," "effort," "target" and other similar words. However, the absence of these words does not mean that the statements are not forward-looking. The forward-looking statements are based on management's expectations, estimates and projections about ConocoPhillips and the petroleum industry in general on the date this statement was released. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions that are difficult to predict. Further, certain forward-looking statements are based on assumptions as to future events that may not prove to be accurate. Therefore, actual outcomes and results may differ materially from what is expressed or forecast in such forward-looking statements. Economic, business, competitive and regulatory factors that may affect ConocoPhillips' business are generally as set forth in ConocoPhillips' filings with the Securities and Exchange Commission (SEC). ConocoPhillips is under no obligation (and expressly disclaims any such obligation) to update or alter its forward-looking statements whether as a result of new information, future events or otherwise.