Endeavour Announces the Mobilization of the Transocean Prospect to the Rochelle Field

    Endeavour Announces the Mobilization of the Transocean Prospect to the
                                Rochelle Field

  PR Newswire

  HOUSTON, Jan. 7, 2013

HOUSTON, Jan. 7, 2013 /PRNewswire/ -- Endeavour International Corporation
(NYSE: END) (LSE: ENDV) today announced that the Transocean Prospect
semi-submersible drilling rig has been mobilized to the Rochelle field to
complete the drilling of the East Rochelle development well in the U.K.
Central North Sea.

After a short mobilization period, anchoring and set up process, the rig will
commence final drilling and completion of the development well. Drilling of
the East Rochelle development well was suspended in November 2012 to allow for
the completion of the subsea installation. The following infrastructure items
have been accomplished:

  *The Rochelle drill center manifolds have all been installed and piled to
    the seabed.
  *A sub-sea isolation valve has also been installed within the Scott 500
    meter safety zone.
  *The 38 kilometre Rochelle pipeline system (East and West) has been
    installed, trenched, backfilled and rock dumped.
  *The East and West pipeline system was successfully de-watered with
    nitrogen back to the Scott platform and is now ready to accept first
    hydrocarbons once the final drilling, well tie-in and pre-commissioning
    operations are completed.
  *All subsea hydraulic, electric and chemical injection umbilical tie-ins
    have been completed. The umbilical has also been connected to the Scott
    topsides umbilical termination unit and all lines have been successfully
    tested point to point.

"The decision at the end of last year to suspend the first well due to the
inability to perform simultaneous pipe-lay and development drilling operations
has facilitated a critical aspect of the development, the subsea
infrastructure, to be completed," said William L. Transier, chairman, chief
executive officer and president. "Once the remaining section of the well is
drilled and the well is tied in, we will be in a position to start production
of hydrocarbons from East Rochelle."

Endeavour is the operator of the Rochelle development project and holds a 44%
ownership interest in the Rochelle development which is comprised of Blocks
15/26b, 15/26c and 15/27.

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

Website: http://www.endeavourcorp.com
Contact: Endeavour - Investor Relations, Darcey Matthews, +1-713-807-8711
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