Exhibit 99.1

                                [ENDEAVOUR LOGO]


For immediate release
Media contact, Janice Aston White, 713-307-8700

                  TRANSACTIONS CREATE NORTH SEA-FOCUSED OIL AND
                     GAS EXPLORATION AND PRODUCTION COMPANY

       ENDEAVOUR INTERNATIONAL CORPORATION (FORMERLY CONTINENTAL SOUTHERN
                  RESOURCES) WILL BE LED BY NEW MANAGEMENT TEAM

HOUSTON, TX - FEBRUARY 29, 2004 -- Continental Southern Resources, Inc.
announced today that it has completed a series of mutually interdependent
transactions that will significantly expand the scope and objectives of the
company under the leadership of a new management team. The expanded organization
has been renamed Endeavour International Corporation and will continue to trade
on the OTC Bulletin Board for the immediate future under the symbol "EVOR."

William L. Transier and John N. Seitz will serve as co-chief executive officers
of the newly restructured company that will initially focus on the acquisition,
exploration and development of natural gas and oil properties in the North Sea
region. Transier was formerly executive vice president and chief financial
officer of Ocean Energy, Inc. prior to its merger with Devon Energy Corporation.
Seitz was previously chief executive officer, chief operating officer and
president of Anadarko Petroleum Corporation. In addition, several other former
officers of Ocean and Anadarko have joined the Endeavour management team.

The restructuring involved the issuance of $50 million of common stock in a
private placement conducted through Sanders Morris Harris, a Houston-based
investment bank. Through a stock merger with a newly created subsidiary, CSOR
subsequently acquired NSNV, Inc., a privately held Texas corporation
majority-owned by Transier and Seitz.

"Endeavour is positioned to take advantage of the exploration and acquisition
opportunities that are being created as the major integrated companies reduce
their commitments to the North Sea and refocus their resources into other parts
of the world," said Transier. "The situation is very similar to the Gulf of
Mexico in the 1980s when the independents entered the region and began to
profitably develop the area's remaining potential."



"Our company holds a unique competitive advantage through our license rights to
an extensive 3-D seismic dataset of the North Sea," explained Seitz. "To the
best of our knowledge, no other firm has access to comparable seismic data of
this size and quality. We have already identified a large number of attractive
drilling opportunities to capitalize upon during future license rounds and
through farm-outs with existing rights holders."

In conjunction with the closing of the private placement and the NSNV merger,
Endeavour completed the following comprehensive restructuring and related
transactions:

- -     Sale of certain non-core assets to certain shareholders in exchange for
      all of the outstanding shares of Series A Preferred Stock and 20,182.86
      shares of the outstanding Series B Preferred Stock;

- -     Purchase of approximately 14.1 million shares of common stock and
      103,500.07 shares of Series B Preferred Stock from certain shareholders;

- -     Conversion of all outstanding shares of Series C Convertible Preferred
      Stock into shares of common stock;

- -     Repayment or conversion into shares of common stock of the $3.65 million
      principal amount due under outstanding convertible notes; and

- -     Sale of its limited partnership interest in Knox-Miss Partners, LP for
      $5.0 million, payable in a combination of cash and short-term notes.

Continuing as members of the board of directors along with Transier and Seitz
are John B. Connally III and Joseph M. Fioravanti. Corporate headquarters have
been relocated to Houston, Texas, and the company has opened a London-based
technical and business development office.

Endeavour International Corporation is an international oil and gas exploration
and production company that trades on the OTC bulletin board under the symbol
"EVOR." The company's primary focus is the acquisition, exploration and
development of energy reserves in the North Sea sectors of the United Kingdom
and Norway.

CERTAIN STATEMENTS IN THIS NEWS RELEASE REGARDING FUTURE EXPECTATIONS, PLANS FOR
ACQUISITIONS, DISPOSITIONS, AND OIL AND GAS RESERVES, EXPLORATION, DEVELOPMENT,
PRODUCTION AND PRICING MAY BE REGARDED AS "FORWARD-LOOKING STATEMENTS" WITHIN
THE MEANING OF THE SECURITIES LITIGATION REFORM ACT. THEY ARE SUBJECT TO VARIOUS
RISKS, SUCH AS OPERATING HAZARDS, DRILLING RISKS, THE INHERENT UNCERTAINTIES IN
INTERPRETING ENGINEERING DATA RELATING TO UNDERGROUND ACCUMULATIONS OF OIL AND
GAS, AS WELL AS OTHER RISKS DISCUSSED IN DETAIL IN THE COMPANY'S PERIODIC
REPORTS AND OTHER DOCUMENTS FILED WITH THE SEC. ACTUAL RESULTS MAY VARY
MATERIALLY.

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