Endeavour Names Management Team for U.S. Operations

HOUSTON, June 16, 2010 - Endeavour International Corporation (NYSE-Amex: END) (LSE: ENDV) has
expanded its operations management team in the United States to oversee its
growing asset base and activities in shale resource plays. The leadership
group will be based in a newly established technical and commercial office
located in Denver, Colorado.

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Chandler (Chip) A. Oakes has joined the company as vice president of
geosciences; Eric Kolstad will serve as vice president of operations; and
David K. Davenport has been named vice president of land. The three
individuals will report to James J. Emme, executive vice president - North
America, who assumed his position earlier this year.

"We are excited about the caliber of talent that will be leading our
initiative in unconventional hydrocarbon exploration and development," said
William L. Transier, chairman, chief executive officer and president. "This
group collectively has vast technical and leadership experience in this new
focus area that will accelerate our strategic move to onshore United States."

"Endeavour is looking forward to being part of the Denver business
community which is an industry center for activities related to shale
resource play development," said Emme. "Our new downtown location will serve
as the hub for operations associated with our expansion into these highly
prospective areas."

Oakes has 28 years of industry experience with Forest Oil Corporation,
Oryx Energy Company and Sun Exploration and Production. Most recently, he
served as managing director for new ventures for Forest Oil where he
established a new operations group to facilitate entry into unconventional
plays. He previously held a variety of international and domestic exploration
management assignments with Oryx and Sun. He has a bachelor of arts in
geology from Middlebury College and masters in geology from the University of
Texas.

Kolstad has an extensive engineering background in all aspects of
drilling, completions and production operations. He has specific expertise in
both vertical and horizontal drilling and hydraulic fracture stimulation of
unconventional reservoirs. Previously, he was vice president of western
operations for New Tech Engineering LP where he was responsible for managing
the company's Rocky Mountains business. He began his career with Texaco
Exploration and Production as a field production engineer in the Green River
Basin. He worked in a variety of technical and management roles at Union
Pacific Resources, Anadarko Petroleum, Williams Production RMT Company and
Newfield Exploration Company. He is a registered petroleum engineer with a
bachelor of science from Colorado School of Mines.

Davenport has experience in acquiring large leasehold positions and
negotiating significant joint ventures in major shale and resource plays
across the U.S. Prior to joining Endeavour, he was vice president, land and
business development for Exco Resources (PA), Inc. overseeing their
Appalachian Marcellus play. He has performed similar duties in the Rocky
Mountains with Orion Energy Partners, Elk Resources, Inc., Encana Oil & Gas
Inc. and Tom Brown, Inc. He began his career with Marathon Oil Company where
he held various roles of increasing responsibility in land management. He
holds a bachelor of science in business from the University of Colorado.

Emme spent 23 years with Anadarko Petroleum Corporation where he served
as worldwide vice president of exploration and business development and
headed the company's Canadian operations. He most recently served as senior
vice president of exploration for Max Petroleum and was president and chief
operating officer for Elk Resources.

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.

Certain statements in this news release should be regarded as
"forward-looking" statements within the meaning of the securities laws. These
statements speak only as of the date made. Such statements are subject to
assumptions, risk and uncertainty. Actual results or events may vary
materially. The estimates of recoverable resources per well and completed
well costs included herein are based upon other typical results in these
shale plays and may not be indicative of actual results.

Investor Relations, Mike Kirksey, +44-(0)-207-451-2364, +1-713-307-8788; or UK Media, Philip Dennis, +44-(0)-20-7337-1516, or Henry Lerwill, +44-(0)-20-7337-1526, both of Pelham Bell Pottinger