Key Energy Services, also known as KES, specializes in onshore energy production services. It is one of the largest providers of onshore well service rigs in the United States. The company offers logistics, fluid management, pressure pumping and drilling services. It employs a staff of more than employs more than 7,500 people throughout the world. The company also has operations in Argentina, Canada and Mexico. Key Energy Services serves oil and natural gas production companies. The company s business segments include well servicing, workover services, completion services and fishing and rental services. Key Energy Services subsidiary includes Key Energy Services de Mexico S. de R.L. de C.V.