Transocean Sedco Forex's semisubmersible, Transocean Richardson drilled the No. 1 well on Green Canyon 608 in the Marco Polo prospect in seventeen days after the initial spud. Anadarko Petroleum is the operator and owns a 100% working interest in the Marco Polo Prospect, which is in approximately 4,300 feet of water offshore Louisiana in the U.S. Gulf of Mexico. 320 feet of pay was encountered in two major intervals above salt. Formation tests recovered 30-degree API gravity oil. The current depth of the well is 13,225 feet and an additional 3,500 feet will be drilled to other zones above salt. A sidetrack well is planned to evaluate this discovery.