Atwood Oceanics, Inc. was an offshore drilling contractor headquartered in Houston, Texas. In October 2017, the company was acquired by Ensco plc. The company owned and operated 4 ultra-deepwater drillships, 2 ultra-deepwater semisubmersibles (can drill in water up to 12,000' deep), 2 deepwater semisubmersibles, and 5 high-specification jackup rigs. In fiscal 2015, 5 customers accounted for a total of 63% of revenues: Noble Energy, Royal Dutch Shell, Woodside Petroleum, Chevron Corporation, and Kosmos Energy. In fiscal 2015, the company derived 76% of its revenue from its 6 deepwater drillships and semisubmersibles. In fiscal 2015, 71% of the company's revenues were derived outside of the United States. The company derived more of its revenues in Australia than in any other country.

History

The company was founded in 1968 by John Atwood. The company began operation by 1970. In 1972, the company became a public company. In October 2017, the company was acquired by Ensco plc (now Valaris Limited).