Endeavour Provides Rochelle Drilling Update

                 Endeavour Provides Rochelle Drilling Update

PR Newswire

HOUSTON, Feb. 14, 2013

HOUSTON, Feb. 14, 2013 /PRNewswire/ -- Endeavour International Corporation
(NYSE: END) (LSE: ENDV) ("Endeavour" or the "Company") today announced a
drilling update on the East Rochelle well (15/27-E1y) in the U.K. Central
North Sea. 

Following a severe storm lasting several days, the Company performed a routine
inspection of the conductor, well head and blow out preventer systems using a
Remote Operated Vehicle (ROV). Inspection of the well revealed that the cement
around the top of the 36" conductor pipe, that anchors the well to the seabed
floor, had been removed creating a non- uniform hole around the conductor. The
hole extended approximately 4 to 7 feet in diameter and 25 feet in depth.

As a result of this finding, drilling operations have been suspended on the
East Rochelle well. The Company is conducting a thorough analysis to identify
the cause of the cement loss and evaluate if there has been any potential
fatigue damage to the conductor itself. The work to repair the cementing
around the conductor pipe has been completed.

Preparations are now being made to move the Transocean Prospect rig to the
West Rochelle area to commence drilling of the second production well,
allowing for the start- up of the Rochelle development. The time to drill the
West Rochelle production well is estimated at approximately 120 days.

Once the investigation and fatigue analysis are concluded, the Company
anticipates thatdrilling operations will re-commence at East Rochelle.
Endeavour is the operator of the Rochelle development and has a 44% working
interest in the field located in 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.

SOURCE Endeavour International Corporation

Website: http://www.endeavourcorp.com
Contact: Endeavour - Investor Relations, Darcey Matthews, +1-713-307-8711
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