Key Energy Services, Inc. was founded in 1977 and is based in Houston, Texas. Key Energy Services, Inc., together with its subsidiaries, operates as an onshore, rig-based well servicing contractor worldwide. Key Energy Services, Inc. operates through three segments: Well Servicing, Pressure Pumping Services, and Fishing and Rental Services. The Well Servicing segment offers a range of well services, including rig-based services, oilfield transportation services, cased-hole electric wireline services, contract drilling services, and other ancillary oilfield services for the completion, stimulation, maintenance, and workover of oil and natural gas producing wells. The Pressure Pumping Services segment provides well stimulation services, such as fracturing, nitrogen services, and acidizing; and cementing services to the oil and natural gas producers. The Fishing and Rental Services segment offers fishing and rental services to independent oil and natural gas production companies, as well as provides services offshore.