THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Endeavour International Corporation (END)

4/28/2006 Proxy Information

Sublease with Reliant Energy Corporate Services, LLC. During third quarter of 2004 we executed a sublease for office space with Reliant Energy Corporate Services, LLC through March 31, 2008. Mr. Transier, a director and co-chief executive officer, is a member of the board of directors of the parent company of Reliant Energy Corporate Services, LLC. Per the contract, lease payments are approximately $180,000 for each of the years ended December 31, 2005, 2006 and 2007 and $45,000 for the year ended December 31, 2008.

Contract with GX Technology Corporation. In December 2004 we entered into a contract with GX Technology Corporation pursuant to which GX Technology Corporation would provide seismic data analysis for approximately $0.3 million, which was paid during 2005. Mr. Seitz, a director and co-chief executive officer, is a member of the board of directors of the parent company of GX Technology Corporation.

Sale of Partnership Interest. In April 2005, we sold our partnership interest in PHT Partners, LP to a private entity for $19.5 million. Andrew Cochran, the son of Michael D. Cochran, an executive officer, became an employee in April 2005 of that UK private entity. The sale price was determined by negotiations between our management and the management of the purchasing entity and approved by our board of directors after disclosure of such relationship.

7/18/2005 Proxy Information

Sublease with Reliant Energy Corporate Services, LLC. During third quarter of 2004 we executed a sublease for office space with Reliant Energy Corporate Services, LLC through March 31, 2008. Mr. Transier, a director and Co-Chief Executive Officer of the Company is a member of the board of directors of the parent company of Reliant Energy Corporate Services, LLC. Lease payments are expected to be approximately $180,000 for each of the years ended December 31, 2005, 2006 and 2007 and $45,000 for the year ended December 31, 2008.

Contract with GX Technology Corporation. In December 2004 the Company entered into a contract with GX Technology Corporation pursuant to which GX Technology Corporation would provide seismic data analysis to the Company for approximately $0.3 million. Mr. Seitz, a director and Co-Chief Executive Officer of the Company, is a member of the board of directors of the parent company of GX Technology Corporation. At December 31, 2004 the Company had not yet paid any funds under the contract.

Sale of Non-Core Assets. As part of the February 2004 restructuring, the Company sold certain non-core assets to an entity owned by the former holders of all of the Company’s Series A Preferred Stock and certain of its Series B Preferred Stock in February 2004. Stephen P. Harrington, former President, Treasurer, and Chairman of the Board of Directors, beneficially owned approximately 36% of the Series A Preferred Stock and FEQ Investments, Inc., and its affiliate KAB Investments, Inc., beneficially owned approximately 20% of the Series A Preferred Stock. In addition, FEQ Investments, Inc. and Mr. Harrington owned 17,712.86 shares of the Series B Preferred Stock. A majority of our disinterested directors approved this transfer of the non-core assets.

Purchase of Securities from RAM Trading, Ltd. On December 16, 2003 RAM Trading Ltd. (“RAM”) entered into an agreement with Lancer Offshore, Inc. and Lancer Partners, L.P. to purchase 14,097,672 shares of Common Stock and 103,500.07 shares of our Series B Preferred Stock (collectively, the “Lancer Shares”) for $5,280,948. Concurrent with the execution of the foregoing agreement, we entered into an agreement with RAM to purchase the Lancer Shares for $5,330,948, subject to RAM completing the purchase of the Lancer Shares. Both the RAM purchase of the Lancer Shares and the Company’s purchase of the Lancer Shares from RAM were consummated on February 26, 2004.

Sale of Partnership Interest. In April 2005, we sold our partnership interest in PHT Partners, LP to a private entity for $19.5 million. Andrew Cochran, the son of Michael D. Cochran, an executive officer of the Company, became an employee in April 2005 of that UK private entity. The sale price was determined by negotiations between the Company’s management and the management of the purchasing entity and approved by the Company’s Board of Directors after disclosure of such relationship.