Kosmos Energy Ltd., together with its subsidiaries, engages in the exploration, development, and production of oil and gas along the Atlantic Margins in the United States. The company's primary assets include production projects located in offshore Ghana, Equatorial Guinea, and the U.S. Gulf of Mexico, as well as gas projects located in offshore Mauritania and Senegal. It undertakes a proven basin exploration program in Equatorial Guinea and the U.S. Gulf of Mexico. Kosmos Energy Ltd. was founded in 2003 and is headquartered in Dallas, Texas.