Endeavour Schedules 2010 Fourth Quarter and Year-End Earnings Conference Call and Web Cast

HOUSTON, February 23, 2011 - Endeavour International Corporation (NYSE Amex: END) (LSE: ENDV) will
host a conference call and web cast to discuss its 2010 fourth quarter and
full year financial and operating results on Wednesday, March 2, 2011 at 9
a.m. Central Standard Time, 3 p.m. British Time.

To participate and ask questions during the conference call, dial the
local country telephone number and the confirmation code 7902719. The
toll-free numbers are 888-765-5579 in the United States and 0-808-101-1402 in
the United Kingdom. Other international callers should dial 913-312-1397
(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 12:00
p.m. Central Standard Time on March 2 through 12:00 p.m. on March 9 by
dialing toll free 888-203-1112 (U.S.) or 719-457-0820 (international),
confirmation code 7902719.

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.

Investor Relations, Mike Kirksey, +1-713-307-8788, or Darcey Matthews, +1-713-307-8711, both of Endeavour International Corporation; or UK Media, Philip Dennis, +44-(0)-20-7337-1516, or Henry Lerwill, +44-(0)-20-7337-1526, both of Pelham Bell Pottinger, for Endeavour International Corporation