Helmerich & Payne, Inc. engages in contract drilling of oil and gas well. It operates through the following segments: U.S. Land, Offshore, and International Land. The U.S. Land segment operations drilled primarily in Oklahoma, California, Texas, Wyoming, Colorado, Louisiana, Mississippi, Pennsylvania, Ohio, Utah, New Mexico, Montana, North Dakota, West Virginia and Nevada. The Offshore segment operates in the Gulf of Mexico and Equatorial Guinea. The International Land segment operates in seven international locations: Ecuador, Colombia, Argentina, Tunisia, Bahrain, United Arab Emirates, and Mozambique. The company was founded by Walter Helmerich II and William Payne in 1920 and is headquartered in Tulsa, OK.