Riverstone Holdings

BioSqueeze is a company based in Butte, Montana, established in 2021, that specializes in biomineralization applications for the oil and gas industry. The company focuses on its proprietary technology to effectively prevent gas migration and reduce fugitive emissions. By penetrating and sealing micro-annuli, fissures, and cracks, BioSqueeze offers a cost-effective solution to address gas leaks that other technologies have failed to resolve.

Blackbuck Resources is a company that specializes in designing, building, and operating water infrastructure for the oil and gas industry. It provides essential services such as water storage, pond management, and water disposal and treatment. The company focuses on developing practical and economical solutions for water conservation facilities, ensuring efficient pipeline management and effective handling of challenging water applications. Through its expertise, Blackbuck Resources supports the operational needs of the oil and gas sector, contributing to more sustainable water management practices.

Blackbuck Resources is a company that specializes in designing, building, and operating water infrastructure for the oil and gas industry. It provides essential services such as water storage, pond management, and water disposal and treatment. The company focuses on developing practical and economical solutions for water conservation facilities, ensuring efficient pipeline management and effective handling of challenging water applications. Through its expertise, Blackbuck Resources supports the operational needs of the oil and gas sector, contributing to more sustainable water management practices.

International-Matex Tank Terminals is a company that specializes in the ownership and operation of bulk liquid storage terminal facilities. It focuses on the storage and handling of bulk liquid products for various industries, including petroleum, chemicals, consumer products, utilities, and commodities. Founded in 1939 and headquartered in New Orleans, Louisiana, the company operates 19 terminals across North America, providing essential services for the efficient management of liquid storage needs.

Vesta Energy Ltd. is a privately owned oil and gas exploration and production company based in Calgary, Alberta, Canada. Founded in 2010, the company specializes in the development of commercial shale oil properties, particularly within the light oil window of the East Duvernay shale play. Vesta Energy employs an innovative approach to oil and gas development, emphasizing stakeholder involvement from the outset and striving to minimize the impact of its operations on landowners. The company aims to foster relationships built on mutual respect and understanding as it navigates the complexities of the energy sector.

Admiral Permian Resources is a privately held exploration and production company dedicated to acquiring and developing oil and gas properties in the Permian Basin, particularly in Northwest Reeves and Northeast Culberson Counties, Texas. The company's strategy emphasizes the use of advanced technologies to discover and enhance oil-rich resource properties. With a management team that possesses extensive experience in the oil and gas sector, primarily within the Permian Basin, Admiral aims to maximize value through its operations. The company is headquartered in Midland, Texas, and has an additional office in Austin, Texas.

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 sector, focusing on oil, gas, and renewables. With a workforce of nearly 850 employees across more than 20 operating centers in 10 countries, Proserv offers a comprehensive range of products and services throughout the oilfield lifecycle. The company specializes in manufacturing subsea and topside control systems, including electrical systems, wellhead control panels, chemical injection systems, emergency shutdown devices, hydraulic power units, and master control stations. Proserv's innovative and reliable solutions aim to maximize resource recovery, minimize costs, and enhance sustainability for its clients. Committed to high standards of service, quality, and safety, Proserv emphasizes the importance of its team and engineering capabilities in driving the organization’s success.

Hammerhead Resources is a private oil and natural gas exploration, development, and production company based in Calgary, Alberta. The company operates primarily in the Alberta Deep Basin, focusing on the development of multi-zone, light-oil rich plays. Its efforts are concentrated in the Upper and Middle Montney formations, where the company has successfully demonstrated the repeatability of its laterally continuous light oil-rich fairway. Through its strategic operations, Hammerhead Resources aims to enhance its reserves and production capabilities in the region.

Utex Industries is a manufacturer that specializes in custom-designed engineered seals and components, utilizing high-performance armored elastomers, polymers, urethanes, composites, and mechanical seals. The company serves a diverse range of markets, including oil and gas, water distribution, aerospace, and industrial sectors. Established in 1969 and headquartered in Houston, Texas, Utex operates manufacturing facilities exceeding 700,000 square feet across nine divisions in Texas and Europe. Over the years, it has expanded its capabilities through acquisitions, including Applied Rubber Technology, AccuSeal, CAM Speciality Products, DuraQuest, and Arefco. Utex Industries also offers specialized products for the oil and gas industry, such as custom rubber and thermoplastic components, well service packaging, and large bore frac systems. The company maintains branches in Britain, Singapore, and Brazil, further enhancing its global reach.

Fairfield Energy is involved in the exploration, development, and production of oil and gas in the United Kingdom, particularly focusing on the North Sea region. The company aims to realign asset ownership in this area by providing low-risk exploration services. Its operations include the appraisal and redevelopment of existing resources, allowing clients to engage in gas development projects in the Southern North Sea. Through its strategic approach, Fairfield Energy seeks to enhance access to energy resources while ensuring efficient management of oil and gas assets.

EP Energy Corporation is an independent exploration and production company focused on acquiring and developing unconventional onshore oil and natural gas properties in the United States. The company operates primarily in three key regions: the Eagle Ford Shale in South Texas, the Uinta Basin in Northeastern Utah, and the Permian Basin in West Texas. As of December 31, 2019, EP Energy reported proved reserves of 189.7 million barrels of oil equivalent and average net daily production of approximately 70,898 barrels of oil equivalent per day. The company markets its oil and natural gas production to third parties and aims to establish itself as a leader in the exploration and production sector through a commitment to performance and collaboration. Founded in 2013, EP Energy is headquartered in Houston, Texas.

Talos Energy is an independent oil and gas company that focuses on offshore exploration and production, primarily in the Gulf of Mexico and offshore Mexico. Established in 2012, Talos Energy specializes in acquiring and developing operated shelf and deepwater assets. The company employs innovative techniques and advanced seismic technologies to explore, exploit, and optimize its resources. With a management team possessing extensive experience in the industry, Talos has a proven track record of success, having previously built and sold two oil and gas companies in the Gulf of Mexico. The company's operations encompass the exploration and production of oil, natural gas, and natural gas liquids, generating revenue through the sale of these resources to various purchasers.

Vantage Energy is an independent oil and natural gas company focused on the acquisition, development, and exploration of properties in the United States, particularly in the Appalachian Basin. The company operates through two main segments: Exploration and Production (E&P), which involves the exploration and production of oil, natural gas, and natural gas liquids, and Midstream, which provides natural gas gathering and water distribution services for its operations and third-party clients. Vantage Energy also explores tight gas sands, gas shales, and coalbed methane across various regions in North America, including the Green River, Uinta, Piceance, Cherokee, and Fort Worth areas.

SemGroup Corporation is a public company that specializes in the midstream energy sector, focusing on the transportation, storage, and processing of oil and natural gas. It operates a comprehensive network of pipelines, terminals, and storage facilities primarily serving independent oil and natural gas producers, as well as petroleum refiners and other market participants. The company's operations are predominantly located in the Mid-Continent and Rocky Mountain regions of the United States, with additional activities in Canada, Mexico, and the United Kingdom. SemGroup's business segments include U.S. Liquids, which manages crude oil pipelines, truck transportation, and storage operations, and U.S. Gas and Canada segments, which focus on natural gas gathering and processing. This diverse portfolio enables SemGroup to provide essential midstream services across various energy markets.