Exhibit 99.1

                     Endeavour to Acquire Norwegian Entity

     HOUSTON--(BUSINESS WIRE)--Oct. 12, 2004--Endeavour International
Corporation (AMEX:END) announced today that its subsidiary Endeavour Energy
Norge AS has entered into an agreement to acquire a majority interest in OER Oil
AS (OER), a privately held Norwegian exploration and production company based in
Oslo, for approximately US$26 million in cash. The transaction is expected to
close by the end of the year subject to necessary government approvals and
certain other conditions.
     Following the closing, Endeavour will hold the approximately 76 percent
interest in OER previously held by Lundin Petroleum B.V. Endeavour intends to
offer to purchase the remaining minority interests in OER, which includes
interests held by OER management, for a combination of Endeavour common stock
and cash. OER management has endorsed the acquisition as a means to establish
the combined entity as a leading independent E&P company in the Norwegian
sector.
     "This acquisition is a significant step toward our goal to build an
independent energy company strategically focused in the North Sea region," said
William L. Transier and John N. Seitz, co-chief executive officers upon the
announcement. "With the acquisition of OER, our company now has a production
base from which to expand our exploration efforts and an experienced Norwegian
technical and commercial team to accelerate our business strategy in Norway. We
also expect to finance a portion of the purchase to ensure that we retain proper
balance sheet leverage."

     OER's asset base includes the following:

     --   A 4.4 percent working interest in the Brage field operated by Norsk
          Hydro

     --   A 2.5 percent working interest in the Njord oil and gas field operated
          by Norsk Hydro

     --   A 49 percent working interest in the Agat gas and condensate discovery
          operated by RWE

     --   Exploration upside in the Brage, Njord and Agat areas

     --   Tax benefits with an approximate future economic value of US$12
          million.

     Current production from OER net interests in the Brage and Njord fields is
approximately 2,000 barrels of oil per day (BOPD). OER's proved reserves as of
Jan. 1, 2004 have been estimated at 2.8 million barrels of oil equivalent (boe)
by an independent reserve consultant. According to the same firm, the properties
have an additional probable reserve potential of 4.1 million boe.
     Last month, Endeavour was awarded nine production licenses covering 18
blocks off the coast of the United Kingdom in the North Sea. In Norway, the
Ministry of Petroleum and Energy also notified the company of its
pre-qualification as a licensee in that country's Continental Shelf.
     In early 2004, Endeavour became a publicly traded U.S. independent
exploration company focused on taking advantage of an industry transition that
is occurring in the North Sea similar to what occurred in the Gulf of Mexico in
the 1980s. Major integrated energy companies continue restructuring their
portfolios away from operating in mature producing areas. This shift creates
financial and development opportunities for smaller, niche players with the
technical capabilities to profitably exploit the remaining reserves.
     Endeavour International Corporation is an international oil and gas
exploration and production company primarily focused on the acquisition,
exploration and development of energy reserves in the North Sea sectors of the
United Kingdom and Norway. The company also holds interests in a gas development
project in Thailand. 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.
     Cautionary Note to U.S. Investors -- The United States Securities and
Exchange Commission permits oil and gas companies, in their filings with the
SEC, to disclose only proved reserves that a company has demonstrated by actual
production or conclusive formation tests to be economically and legally
producible under existing economic and operating conditions. We use certain
terms in this press release, such as "probable reserve potential," that the
SEC's guidelines strictly prohibit us from including in filings with the SEC and
which have less certainty than proved reserves. U.S. Investors are urged to
consider closely the disclosure in our Form 10-KSB for the fiscal year ending
Dec. 31, 2003, File No. 000-33439, and our subsequent filings, File Nos.
000-33439 and 001-32212, with the SEC available from us at 1001 Fannin, Suite
1700, Houston, TX 77002. You can also obtain these filings from the SEC by
calling 1-800-SEC-0330.

     CONTACT: Endeavour International Corporation, Houston
              Janice Aston White, 713-307-8780