Riverstone Holdings

Provider of water storage and pond management services intended for water conservation facilities. The company designs, builds and operates water infrastructure with specialization in water disposal and treatment, pipeline management and oil and gas operations, thereby enabling the oil and gas industry with practical, effective and economical utilities to the most challenging water applications.

Provider of water storage and pond management services intended for water conservation facilities. The company designs, builds and operates water infrastructure with specialization in water disposal and treatment, pipeline management and oil and gas operations, thereby enabling the oil and gas industry with practical, effective and economical utilities to the most challenging water applications.

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 Ltd. is a privately owned oil and gas exploration and production company based in Calgary, Alberta, Canada. Founded in 2010, Vesta focuses on the development of commercial shale oil properties, particularly within the light oil window of the East Duvernay shale play. The company employs an innovative approach to oil and gas development, emphasizing stakeholder involvement from the beginning of its projects. Vesta Energy is committed to minimizing the impact of its operations on landowners and strives to build relationships based on mutual respect and understanding.

APR Operating LLC, also known as Admiral Permian Resources, is an exploration and production company that specializes in acquiring, developing, and producing oil and gas properties within the Permian Basin. Established in 2017, the company is headquartered in Midland, Texas, with an additional office located in Austin, Texas. Admiral employs advanced technologies to identify and develop resource-rich properties, leveraging the expertise of its seasoned management team, which has a strong background in the oil and gas sector. The company's primary focus is on maximizing value through strategic operations in one of the most productive oil regions in the United States.

Avant Energy is a Mexican company focused on providing midstream energy and supply solutions. It engages in the transportation, storage, and distribution of gas and liquids, as well as electricity supply. The company specializes in the development, construction, and operation of energy infrastructure across the oil, natural gas, refined products, and electricity sectors. With a commitment to high ethical, environmental, and safety standards, Avant Energy aims to deliver innovative and competitive energy solutions while actively participating in the recently liberalized energy markets.

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 that caters to the energy industry, specializing in subsea and topside control systems for both oil and gas and renewable sectors. With a global presence, employing nearly 850 people across over 20 operating centers in 10 countries, Proserv offers a comprehensive range of products and services designed to support the entire oilfield lifecycle. The company focuses on delivering electrical systems, wellhead control panels, chemical injection systems, emergency shutdown devices, hydraulic power units, and master control stations. Proserv's innovative solutions aim to maximize recovery, minimize costs, and enhance sustainability while maintaining high standards of service, quality, and reliability. The company places significant emphasis on engineering expertise and field-proven technologies, recognizing that its skilled workforce is pivotal to its success and achievements.

Fairfield Energy specializes in the exploration and production of oil and gas in the United Kingdom, with a particular focus on the Southern North Sea. The company engages in various activities, including the appraisal, development, and redevelopment of oil and gas assets. Its services are designed to facilitate low-risk exploration, allowing clients to effectively access gas development projects. By realigning asset ownership in the North Sea, Fairfield Energy aims to optimize resource management and enhance operational efficiencies in the region.

EP Energy LLC is an independent exploration and production company based in Houston, Texas, specializing in the acquisition, exploration, development, and production of oil, natural gas, and natural gas liquids across the United States. The company's key operational areas include the Permian Basin in West Texas, the Eagle Ford Shale in South Texas, and Northeastern Utah in the Uinta Basin. As of December 31, 2019, EP Energy LLC reported proved reserves of 189.7 million barrels of oil equivalent and an average net daily production of approximately 70,898 barrels of oil equivalent. The company primarily markets its production to third parties while focusing on enhancing the value of its asset portfolio and maintaining financial flexibility. EP Energy LLC is a subsidiary of EP Energy Corporation, which was founded in 2013.

Talos Energy is an independent oil and gas company focused on offshore exploration and production, primarily in the Gulf of Mexico and offshore Mexico. The company specializes in acquiring operated shelf and developed deepwater assets, employing innovative techniques and advanced seismic technologies to explore, exploit, and optimize these resources. Its operations encompass the exploration and production of oil, natural gas, and natural gas liquids (NGLs), with revenue generated from the sale of these commodities. Founded in 2012 by a seasoned management team with extensive experience in the industry, Talos Energy has successfully built and sold two previous oil and gas companies, demonstrating a strong track record of delivering positive results to 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.