Endeavour to Participate in Two Upcoming Conferences

HOUSTON, August 5, 2011 -

Endeavour International Corporation (NYSE: END) (LSE: ENDV) today announced that it will participate in the Tuohy Brothers E&P and Midstream Infrastructure Conference and The Oil and Gas Conference 2011 sponsored by EnerCom.

J. Michael Kirksey, executive vice president and chief financial officer, will participate in the Tuohy Brothers one-on-one conference in New York, New York on August 8th.

William L. Transier, chairman, chief executive officer and president, is scheduled to speak on the company’s business strategies and operational plans at EnerCom’s Oil and Gas Conference 2011 in Denver, Colorado on Tuesday, August 16th at 2:45pm Mountain Time.

Copies of the presentations will be available by accessing Endeavour’s internet home page at www.endeavourcorp.com.

Endeavour International Corporation is an oil and gas exploration and production company focused on the acquisition, exploration and development of oil and natural gas in the North Sea and the United States. For more information, visit  www.endeavourcorp.com.

Endeavour, Investor Relations, Mike Kirksey, +1-713-307-8788, or Darcey Matthew, +1-713-307-8711