Eric Mattson

Varco International, Inc. was a provider of engineered drilling and well servicing equipment, products and services to the world's oil and gas industry. With operations in over 40 countries across six continents, the Company was manufacture and supplies drilling systems and rig instrumentation; performs inspection and internal coating of oilfield tubulars; provides drill cuttings separation and manufactures coiled tubing, wireline and pressure control equipment for land and offshore drilling and well stimulation operations. Varco was also manufactures coiled tubing, provides in-service pipeline inspections, manufactures high-pressure fiberglass and composite tubing and sells and rents advanced in-line inspection equipment to makers of oil country tubular goods. The Company operates in four groups: Drilling Equipment, Tubular Services, Drilling Services and Coiled Tubing and Wireline Products. Varco International is located in Houston, TX.

VeriCenter, Inc. provides information technology managed services. It offers information technology outsourcing services including enterprise hosting, collocation, disaster recovery, server administration, network management, messaging and collaboration services. The company was co-founded by Gray Hall, David Colesante, Mike Sullivan and Tom Veronie in 1999 and is headquartered in Houston, TX.

National Oilwell, Inc., is a company which designs, manufactures and markets mechanical components for both land and offshore drilling rigs as well as land drilling and well servicing rigs. The company has it's headquarters in Houston, Texas. It is a subsidiary of National Oilwell Varco, Inc.

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.

Select Energy Services LLC operates as an oil and gas service company. The firm offers water solutions and environmental, well completions & intervention and facilities construction & engineering services. The company was founded in 2008 and is headquartered in Houston, TX.