Endeavour Schedules 2011 First Quarter Earnings Conference Call and Web Cast

HOUSTON, April 27, 2011 - Endeavour International Corporation (NYSE: END) (LSE: ENDV) will host a
conference call and web cast to discuss its 2011 first quarter financial and
operating results on Wednesday, May 4, 2011 at 9 a.m. Central Daylight Time,
3 p.m. British Summer Time.

To participate and ask questions during the conference call, dial the
local country telephone number and the confirmation code 5667933. The
toll-free numbers are 800-776-0087 in the United States and 0-808-101-1402 in
the United Kingdom. Other international callers should dial +1-913-312-1301
(tolls apply).

To listen only to the live audio web cast access Endeavour's home page at
www.endeavourcorp.com. A replay will be available beginning at 12:20
p.m. Central Daylight Time on May 4 through 12:20 p.m. on May 11 by dialing
toll free 888-203-1112 (U.S.) or +1-719-457-0820 (international),
confirmation code 5667933.

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

Mike Kirksey, +1-713-307-8788, or Darcey Matthews, +1-713-307-8711