Endeavour Provides Rochelle Drilling Update

ENDEAVOUR INTERNATIONAL CORP - Endeavour Provides Rochelle Drilling Update

PR Newswire

London, February 14

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

Following a severe storm lasting several days, the Company performed a routineinspection of the conductor, well head and blow out preventer systems using a RemoteOperated Vehicle (ROV). Inspection of the well revealed that the cement around thetop of the 36" conductor pipe, that anchors the well to the seabed floor, had beenremoved creating a non- uniform hole around the conductor. The hole extendedapproximately 4 to 7 feet in diameter and 25 feet in depth.

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

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

Once the investigation and fatigue analysis are concluded, the Company anticipatesthat drilling operations will re-commence at East Rochelle. Endeavour is theoperator of the Rochelle development and has a 44% working interest in the fieldlocated in Blocks 15/26b, 15/26c and 15/27.

Endeavour International Corporation is an international oil and gas exploration andproduction company focused on the acquisition, exploration and development of energyreserves in the North Sea and United States. For more information, visitwww.endeavourcorp.com.

SOURCE Endeavour International Corporation

CONTACT: Endeavour - Investor Relations, Darcey Matthews, +1-713-307-8711