Patterson-UTI Energy, Inc. is a prominent North American oilfield services company that specializes in land drilling and well completion services for oil and natural gas exploration and production. Established in 1978 as Patterson Drilling Company and later merging with UTI Energy in 2001, it has become the second-largest provider of onshore contract drilling services in North America.

The company offers a wide range of services, including contract drilling, integrated well completion, directional drilling, and pressure pumping services. It also provides specialized bit solutions, oilfield rental equipment, and technology solutions aimed at enhancing drilling efficiency. Patterson-UTI serves major and independent energy companies, focusing on safe and efficient operations while emphasizing safety, environmental protection, and operational excellence. With a workforce of around 10,000 employees, the company is committed to innovation and sustainability in the energy sector.