Key Energy Services, Inc. operates as an onshore rig-based well servicing contractor in the United States and internationally. The company offers rig-based services, including the maintenance, workover, and recompletion of existing oil and gas wells; completion of newly-drilled wells; and plugging and abandonment of wells at the end of their lives, as well as specialty drilling services to oil and natural gas producers. It also provides fluid management services, such as vacuum truck services, fluid transportation services, and disposal services for operators, whose wells produce saltwater or other non-hydrocarbon fluids; and equipment trucks that are used to move large equipment from one well site to the next, as well as supplies frac tanks, which are used for temporary storage of fluids associated with fluid hauling operations. In addition, the company operates a fleet of hot oilers for pumping heated fluids that are used to clear soluble restrictions in a wellbore; and offers intervention services, such as coiled tubing, pumping, and nitrogen service. Further, it provides fishing services that involve recovering lost or stuck equipment in the wellbore utilizing an array of fishing tools; rental equipment comprising drill pipe, tubulars, pressure-control equipment, power swivels, and foam air units, as well as handling tools comprising Hydra-Walk pipe-handling units and services; oilfield service equipment controls, data acquisition, and digital information flow services; and drilling, project management, consulting, and reservoir engineering services. The company was formerly known as Key Energy Group, Inc. and changed its name to Key Energy Services, Inc. in December 1998. Key Energy Services, Inc. was founded in 1977 and is headquartered in Houston, Texas.