David J. Nightingale

Complete Production Services, Inc. provides specialized completion and production services and products focused on helping oil and gas companies develop hydrocarbon reserves, reduce operating costs and enhance production. The company operates through two reportable business segments: Completion and Production Services and Drilling Services. The Completion and Production Services segment maintains and enhances the flow of oil and gas throughout the life of a well. This segment is divided into three primary service lines: The Intervention Services include coiled tubing units, pressure pumping units, nitrogen units, well service rigs, snubbing units and a variety of support equipment. The Downhole and Wellsite Services include electric-line, slickline, production optimization, production testing, rental and fishing services. The Fluid Handling unit provides a variety of services to help its customers obtain, move, store and dispose of fluids that are involved in the development and production of their reservoirs. The Drilling Services segment provides services and equipment that initiate or stimulate oil and gas production by providing land drilling and specialized rig logistics services. This segment also provides repair work and fabrication services for its customers at a business located in Gainesville, Texas. Complete Production Services owns and operates regional field facilities located in the U.S. Rocky Mountain region, Texas, Oklahoma, Louisiana, Arkansas, Pennsylvania, western Canada, Mexico and Southeast Asia. The firm changed its name from Integrated Production Services, Inc. to Complete Production Services, Inc. on September 12, 2005. It was founded on May 22, 2001 and is headquartered in Houston, TX.

Nuverra Environmental Solutions, Inc. engages in the development and ongoing production of oil and natural gas from shale formations. It operates through the following segments: Rocky Mountain, Northeast, Southern, and Corporate and Other. The Rocky Mountain segment includes the Bakken shale area. The Northeast segment is comprised of the Marcellus and Utica shale areas. The Southern segment covers the Haynesville shale area. The Corporate and Other segment includes certain corporate costs and certain other corporate assets. The company was founded on May 29, 2007 and is headquartered in Houston, TX.

I.E. Miller Services, Inc. provides rig relocation services. Its operating from south, east & north texas, Southwestern Wyoming, and Louisiana. The company was founded in 1936 and is headquartered in Eunice, LA.

ChoicePay, Inc. provides electronic payment services. It offers billers to accept customer payment by electronic check, credit card, or cash using their Internet, interactive voice response, call center, kiosk, and agent payment platforms. The company was founded in 1996 and is headquartered in Tulsa, OK.

The American Gas Association represents over 200 energy companies that provide natural gas service to 180 million Americans. The private company is based in Washington. The American company's natural gas utilities are committed to reducing greenhouse gas emissions through new and modernized infrastructure and advanced technologies that maintain reliable, resilient, and affordable energy service choices for consumers. The company advocates on behalf of its member natural gas distribution utilities before Federal agencies in the area of energy market regulation.

Rockwater Rockies LLC provides oil and gas services. The company was founded on April 27, 1995 and is headquartered in Houston, TX.

Rockwater Energy Solutions, Inc. provides water management and chemical technologies solutions. It offers fluids conditioning, water transfer, flow back and well testing, fluid logistics, above-ground storage, construction services, completion and production of chemicals, coiled tubing chemicals, and chemical logistics. The company was founded on June 1, 2011 and is headquartered in Houston, TX.

CIG Logistics Services LLC engages in the provision of oil field logistics services. It offers transloading, inventory management and storage services. The company was founded in 2013 and is headquartered in Fort Worth, TX.