United Holdings

United Holdings LLC, which trades as United Engines, is a collective of companies that distributes and services engine and transmission products and manufactures oilfield service equipment. Its customers span the oil and gas services, power generation and transportation industries. The company is headquartered in Oklahoma City, Oklahoma and has been a subsidiary of Kirby Corporation since April 2011.

On the manufacturing side, United Holdings builds equipment used in well servicing and oilfield operations. Its product range includes hydraulic fracturing equipment, gas compressors, pump jack power packages, cementers, blenders and nitrogen pumpers. In distribution and service, the company handles engine and transmission products and holds OEM equipment certifications for MTU, Allison Transmission, DEUTZ, Detroit, Volvo Penta and other partners.

Technical work at the company spans engine distribution and service, transmission systems, gas compression, hydraulic fracturing equipment and other oilfield manufacturing domains. The company operates world-class training facilities in multiple U.S. states and describes its culture as one built on a century-long pursuit of excellence, with an emphasis on customer service, reliable products and custom equipment access.