Patterson-UTI Energy is provides onshore contract-drilling services to exploration and production businesses throughout North America. The company has exploration equipment that includes more than 400 land-based drilling rigs. It operates in oil- and natural gas-producing regions of Texas, New Mexico, Oklahoma, Louisiana, Mississippi, Colorado, Utah, Wyoming, Montana, North Dakota, South Dakota and Western Canada. Patterson-UTI Energy performs pressure pumping, drilling and completion services. The company also engages in exploration and production ventures. It is headquartered in Snyder, Texas. Patterson-UTI Energy maintains an additional facility in Midland, Texas.