George Finley

Universal Compression Partners LP provides natural gas contract compression services to customers nationwide. Its services include designing, installing, operating, repairing, and maintaining compression equipment. Following the company's IPO, it will operate a fleet of compressor units, comprising more than 331,000 horsepower, or some 17% of parent and global compression. It is located in Houston, TX.

Archrock Partners LP, engages in the provision of natural gas compression services. The firm designs, owns, installs, operates, repairs, and maintains equipment to provide natural gas compression services to customers. It also owns and operates a natural gas processing plant. The company was founded on October 10, 2006 and is headquartered in Houston, TX.

Ocean Rig ASA owns and operates drilling rigs. It specializes in offshore exploration, development, and production drilling in deepwater. The company has two drilling rigs, Leiv Eiriksson and Eirik Raude. Ocean Rig serves oil companies. The company was founded in 1996 and is headquartered in Stavanger, Norway

Baker Hughes Holdings LLC supplies oilfield services, products, technology, and systems to the worldwide oil and natural gas industry. It provides products and services for other businesses including downstream chemicals, and process and pipeline services. The company is headquartered in Houston, TX.

Total Safety U.S., Inc. engages in the provision of industrial safety services, equipment and compliance solutions. It includes gas detection, turnaround and shutdown, respiratory protection, confined space safety, in-plant services center, specialized safety personnel, professional and technical personnel, fire protection, fall protection, flare services, emergency response, training, compliance and certification, communications, medial management, equipment and technologies, and in-mine services center. The firm serves the solutions upstream, midstream, downstream, and other industries. The company was founded in December 1994 and is headquartered in Houston, Texas.

MicroSeismic, Inc. provides seismic monitoring, mapping, and imaging services. Its solutions include buriedarray, hydraulic fracture monitoring and mapping, reservoir, fracstar surface, passive seismic emission tomography and seimicity monitoring. The company was founded by Peter M. Duncan and Christopher Neale in 2003 and is headquartered in Houston, TX.