Investigation of Loss of Well Control Eugene Island Block 107, Well B-1 Workover Ocs-G 15241 8 March 2003

The surface and bottomhole location for Well B-1 iswithinlease OCS-G 15241, whichcoversapproximately 5,000 acres and is located in Eugene IslandBlock107(EI-107)Gulf of Mexico, offshore Louisiana(for lease location, see Attachment 1). In 1995, the lease OCS-G 15241was issued to Norcen Exploration and Production, Inc. (hereinafter referred to as "Norcen"). Subsequently, in 1998 the lease was transferred to Union Pacific Resources who became operator of record following the acquisition of Norcen. In July 2000, Union Pacific Resources was acquired by Anadarko Petroleum Corporation (hereinafter referred to as "Anadarko" or "Operator"), who became operator of record.