Endeavour Names Darcey Matthews Director of Investor Relations and Corporate Communications

HOUSTON, September 1, 2010 - Endeavour International Corporation (NYSE Amex: END) (LSE: ENDV)
announced today that K. Darcey Matthews has joined Endeavour as its new
Director of Investor Relations and Corporate Communications.

"We are delighted to have Darcey join the Endeavour team," said Mike
Kirksey, Endeavour's Executive Vice President and Chief Financial Officer.
"Darcey has an in-depth knowledge of the capital markets and brings strong
communication skills that will help communicate our strategies and objectives
to all our stakeholders."

Ms. Matthews comes to Endeavour with over 11 years of relevant experience
advising public companies in the capital markets, most recently serving as
Managing Director in the Global Corporate Client Group at the NYSE Euronext
in the US and Europe. Prior to that, she served as the Northeast Regional
Business Manager for Investor Business Media Network. Ms. Matthews'
responsibilities include internal and external communications and the
development of an effective Investor Relations program designed to provide
Endeavour with enhanced visibility to all its constituencies.

Ms. Matthews graduated from New York University with a Bachelor's degree
in International Business and Finance. She is also a board member of the
Houston Chapter of the National Investor Relations Institute(NIRI).

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

Darcey Matthews, Investor Relations of Endeavour, +1-713-307-8711