Cobalt International Energy Inc. is an independent exploration and production company with operations focused in the deepwater the United States Gulf of Mexico. The Company operates through the United States segment. The Company has over four oil and gas discoveries, including the North Platte, Shenandoah, Anchor and Heidelberg fields. It also has a non-operated interest in the Diaba Block offshore Gabon. The Company's Heidelberg project is located approximately 160 miles south of the Louisiana coast in over 5,300 feet of water and covers Green Canyon Blocks 859, 903 and 904. The Company has an oil discovery at its North Platte prospect on Garden Banks Block 959 in the deepwater United States Gulf of Mexico. The Company's Shenandoah field is located approximately 200 miles south of the Louisiana coast in over 5,800 feet of water in the Walker Ridge area. The Company's Anchor field is located approximately 140 miles from the Louisiana coast in over 5,180 feet of water.