Gabon

Marathon holds a 56.25 percent working interest in three offshore production fields in Gabon: Tchatamba Marin, Tchatamba South and Tchatamba West. Marathon is the operator of all three fields. Production is processed on a single facility at Tchatamba Marin, with processed oil being transported through a pipeline to a nonoperated onshore facility.

Located 15 miles offshore and approximately 100 miles southeast of Port Gentil, the Tchatamba Marin Field was discovered in 1995 and began production in early 1998. The Tchatamba South and West fields were discovered in 1997 and came on stream in 1999 and 2000, respectively.

A major project was completed in 2002 that consisted of installing a 27-mile pipeline for tie-in to Total's existing onshore Rabi-Kounga pipeline, which flows to the Cap Lopez offloading terminal just north of Port-Gentil.