Riverstone Holdings

Blackbuck Resources Designs, Builds, and Operates Water Infrastructure and Provides Services for the oil and gas industry.

Blackbuck Resources Designs, Builds, and Operates Water Infrastructure and Provides Services for the oil and gas industry.

International-Matex Tank Terminals owns and operates bulk liquid storage terminal facilities for petroleum, chemical, consumer products, utilities, and commodity industries. It specializes in handling and storage of bulk liquid products through its ownership and operation of 19 terminals throughout North America. It was founded in 1939 and headquartered in New Orleans, Louisiana.

Vesta Energy is a privately owned oil and gas company focused on the development of commercial shale oil properties. They employ an innovative approach to oil and gas development with stakeholder involvement from the onset and endeavor to minimize the impact of their operations on its landowners and form relationships built on mutual respect and understanding. The company was founded in 2010 and is headquartered in Calgary, Alberta, Canada.

Admiral is a privately held exploration and production company focused on the acquisition and development of oil and gas properties in the Permian Basin. Admiral's strategy is to use leading edge technologies to identify and develop oil rich resource properties. Its experienced management team has a proven track record in the oil and gas industry, predominantly in the Permian Basin, and is focused on maximizing value. Admiral is headquartered in Midland, Texas with offices in Austin, Texas.

Avant Energy is a recently incorporated Mexican company, dedicated to provide energy midstream and supply solutions to customers. Our main business activities include gas and liquids transport, storage and distribution, as well as electricity supply. Their mission is to develop innovative and competitive energy supply solutions through the development of energy infrastructure, and complying with high ethical, environmental and safety standards.

Three Rivers was formed in the first quarter of 2009, with a strategy to acquire, develop and exploit oil and natural gas reserves in the Permian Basin in West Texas and Southeastern New Mexico. The Company received its formation capital and subsequent equity infusions from Riverstone Holdings LLC, a private equity firm, headquartered in New York, with investments across the entire energy spectrum. Three Rivers operates assets located in the Permian Basin, one of the most prolific and largest producing oil and gas regions in the United States. Benefits of operating in the Permian Basin include numerous producing zones ranging from 1,000 to 25,000 feet, fully developed infrastructure, and a large, mature group of oilfield service providers. Reserves in the Permian Basin are generally characterized as long lived with shallow decline profiles. Our core strategy is to complete acquisitions of producing properties that contain large amounts of held-by-production acreage and quantifiable upside in non-producing and undeveloped proved reserves. Generally, our targeted acquisitions have approximately 40% to 60% PDP reserves, which enables us to efficiently develop incremental proven reserves without undertaking a large undeveloped leasing effort. Our company employs strict geologic principles with all capital projects in an effort to improve drilling results, and strives to be an efficient operator of our diversified asset base.

Proserv is a production technology and services company for the energy industry. We have the know-how to maximise recovery, minimise costs and enhance sustainability. Our experts devise ingeniously simple and reliable solutions that deliver every time. Proserv has a large global footprint employing almost 850 people in over 20 operating centres based in 10 countries. Our group of companies combined provide products and services for the entire oilfield lifecycle. We are firmly committed to providing our clients with the highest standards of service, quality and reliability whilst nurturing a world-class QHSE culture. Our people are fundamental to the success of our organisation and remain at the heart of our achievements. Our expertise also lies in the strength of our engineering capabilities, innovative solutions and field proven technologies

Fairfield Energy is engages in the exploration, exploitation, appraisal, development, redevelopment, and production of oil and gas in the United Kingdom.

At EP Energy, they have a passion for finding and producing the oil and natural gas that enriches people’s lives. That passion is helping them to deliver on their vision to be an E&P industry leader known for extraordinary people, exceptional performance, and enduring partnerships.

Talos Energy is an independent oil and gas company led by a management team with decades of experience in offshore exploration and production. We are expert at acquiring operated shelf and developed deepwater assets in the Gulf of Mexico, then exploring, exploiting and optimizing those assets using innovative techniques and cutting-edge seismic technologies. As a cohesive group working together for well over a decade, we have a strong track record of positive results. Before beginning Talos Energy in 2012, we successfully built and sold two Gulf of Mexico oil and gas companies – Phoenix Exploration Co. and Gryphon Exploration Co., each delivering significant returns to our equity investors.

Vantage Energy is an independent oil and natural gas company. The Company is engaged in the acquisition, development, exploitation, and exploration of oil and natural gas properties in the United States, with a focus on the Appalachian Basin. The Company operates through two segments: Exploration and Production (E&P), which explores for and produces oil, natural gas, and natural gas liquids (NGLs), and Midstream, which is engaged in natural gas gathering and water distribution services for its operations and third parties.

SemGroup® Corporation is a publicly held company that moves energy safely through a network of pipelines, terminals and storage tanks. SemGroup provides gathering, transportation, processing, storage, distribution, marketing and other midstream services primarily to independent oil and natural gas producers, refiners of petroleum products and other market participants located in the Mid-Continent and Rocky Mountain regions of the United States and in Canada, Mexico and the United Kingdom.