Rowan Companies plc provides offshore oil and gas contract drilling services to the oil and gas industry. The company operates through Deepwater, Jack-ups, and ARO segments. The Deepwater segment operates 4 ultra-deepwater drillships. The Jack-ups segment operates 23 self-elevating jack-up rigs. The ARO segment operates 5 self-elevating jack-up rigs. The company operates in the United States Gulf of Mexico, the United Kingdom, and Norwegian sectors of the North Sea, the Middle East, and Trinidad. Rowan Companies plc was founded in 1923 and is based in Houston, Texas.