Patterson-UTI Energy, Inc. is an oilfield services company. The Company owns and operates a fleet of land-based drilling rigs and a fleet of pressure pumping equipment in the United States. The Company's segments include Contract Drilling, Pressure Pumping and Other operations. The Contract Drilling segment markets its contract drilling services to independent and other oil and natural gas operators. As of December 31, 2016, the Company had 202 marketed land-based drilling rigs. The Pressure Pumping segment provides pressure pumping services to oil and natural gas operators primarily in Texas (Southwest Region) and the Appalachian region (Northeast Region). The Other operations segment includes the Company's pipe handling components and related technology business, the oil and natural gas working interests and the Middle East/North Africa business. In addition, the Company owns and invests in oil and natural gas assets as a non-operating working interest owner in Texas and New Mexico.