Endeavour Announces Full Redemption of 6% Senior Notes Due 2012

HOUSTON, April 4, 2011 - Endeavour International Corporation (NYSE: END) (LSE: ENDV) today
announced that it is redeeming all of its outstanding $81.25 million of 6%
Senior Notes due 2012 (the "Notes") with a portion of the proceeds from its
recently completed offering of common stock. The redemption will be made in
accordance with the terms of the indenture governing the Notes.

Endeavour expects to redeem the Notes on or about April 20, 2011 (the
"Redemption Date") at a redemption price of 100% of their principal amount,
plus accrued and unpaid interest to the Redemption Date.

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.

Certain statements in this news release should be regarded as
"forward-looking" statements within the meaning of the securities laws. These
statements speak only of as of the date made. Such statements are subject to
assumptions, risk and uncertainty. Actual results or events may vary
materially.

Investor Relations of Endeavour, Mike Kirksey, +1-713-307-8700, Darcey Matthews, +1-713-807-8711