First Reserve

Venterra Group, established in 2021 and headquartered in Sheffield, UK, specializes in engineering, constructing, and maintaining offshore wind energy projects globally. The company offers comprehensive project management and engineering services across the entire lifecycle of offshore wind farms, from initial concept design to decommissioning. Venterra's expertise encompasses environmental and geotechnical analysis, as well as hydrographic surveys, supporting the development and operation of sustainable wind energy projects worldwide.

Palmdale Oil Company is a wholesale distribution firm specializing in petroleum fuels and lubricants. The company provides comprehensive services to meet commercial fuel requirements, including the delivery of various fuels and lubricants. Its product offerings encompass a full range of gasohol and distillate products, as well as essential chemicals such as diesel exhaust fluid, coolants, solvents, degreasers, brake cleaners, and soaps. By addressing the diverse needs of its clients, Palmdale Oil Company enables businesses to efficiently manage their fuel and lubricant supplies, while also reducing the potential for misuse.

Phillips 66 is a diversified energy company that operates across the downstream sector. It owns and operates 11 refineries with a combined crude oil processing capacity of 1.8 million barrels per day, producing a range of fuels and petrochemical products. The company's midstream segment includes extensive transportation and natural gas liquids (NGL) processing assets, with DCP Midstream, a 50% owned joint venture, being one of the largest NGL producers and pipeline operators in the U.S. Phillips 66 also has a significant chemicals business, CPChem, which produces olefins and polyolefins. The company's business model is further supported by Phillips 66 Partners, a master limited partnership that provides fee-based transportation and processing services, primarily to Phillips 66.

Goldfield is provider of electrical construction services engaged in the construction of electrical infrastructure for the utility industry

Lamons is a manufacturer in the oil and energy sector, focusing on industrial sealing solutions for the petroleum refining, petrochemical, and oil field markets. The company specializes in producing gaskets, fasteners, hose assemblies, and specialty bolts, all of which are designed to meet the needs of mission-critical applications. Lamons ensures that its products are readily available for immediate delivery, providing clients with efficient access to essential equipment. Through its commitment to quality and reliability, Lamons plays a vital role in supporting the operational demands of the energy industry.

IRISNDT Corp. is a leading provider of nondestructive testing (NDT) and materials engineering services, catering primarily to the oil and gas, petroleum and petrochemical, chemical, power generation, and pipeline industries. Founded in 1953 and based in Edmonton, Canada, the company offers a range of specialized services, including automated ultrasonics, radiographic inspection, and corrosion analysis, along with engineering and laboratory services. IRISNDT also provides fabrication and manufacturing inspections, maintenance and emergency services for chemical and petrochemical plants, and rope access solutions. With a strong presence in Western Canada and the United States, the company is recognized for its commitment to enhancing operational efficiency and safety for its clients while minimizing unplanned downtime.

Weir Flow Control ("WFC") is a designer, manufacturer and aftermarket services provider of engineered valves and pumps used in energy and broader industrial applications. WFC consists of global brands in niche applications supporting safe, reliable and efficient energy and industrial processes worldwide.

Refuel, Inc. is a retail fuel distribution company based in Mount Pleasant, South Carolina, and has been operating since 2008. It manages a chain of gas service stations that also feature convenience stores, providing customers with access to fuel, quality gas, and fresh food options. In addition to refueling stations, Refuel's locations often offer car wash services and other customer assistance, creating a convenient one-stop solution for motorists. With a presence across multiple locations in South Carolina, the company has established itself in the growing fuel distribution market over the past decade.

Blue Racer Midstream, LLC specializes in the development and provision of midstream infrastructure and services focused on natural gas. Founded in 2012 and headquartered in Dallas, Texas, the company operates in key areas including Marshall County, West Virginia, and Ohio. Its offerings include natural gas gathering, compression, treating, processing, and transportation, as well as condensate handling and the fractionation, storage, transportation, and marketing of natural gas liquids. Blue Racer Midstream operates interconnected midstream assets that facilitate the movement of natural gas products from production sites in the Utica and southwestern Marcellus shales to market, enabling customers in the Appalachian basin to access essential midstream services and optimize their pricing outcomes. The company is a joint venture between Dominion Resources and Caiman Energy II.

Dresser Natural Gas Solutions is a leading provider of measurement, instrumentation, and piping solutions to the natural gas distribution.

Lucero Energy is an independent oil company that specializes in the acquisition, development, and production of oil-weighted assets in the Bakken and Three Forks formations located in the Williston Basin of North Dakota. The company is actively involved in consolidating interests in these regions, aiming to enhance its operational efficiency and resource extraction capabilities.

CHA Consulting, Inc. is a full-service engineering and construction management firm offering a broad array of planning and design services to public, private, and institutional clients. Established in 1952 and headquartered in Albany, New York, the firm has a robust presence across the United States and Canada, with technical personnel positioned in various offices. CHA provides an extensive range of services, including engineering, architectural design, surveying, permitting, environmental assessments, and construction inspection. Its expertise spans multiple sectors such as industrial, power supply, communications, aviation, and transportation engineering, as well as landscape architecture and land use planning. Additionally, CHA serves specialized industries including sports and entertainment, campus and institutional environments, and manufacturing, demonstrating its commitment to delivering projects on time and within budget.

Lucero Energy is an independent oil company that specializes in the acquisition, development, and production of oil-weighted assets in the Bakken and Three Forks formations located in the Williston Basin of North Dakota. The company is actively involved in consolidating interests in these regions, aiming to enhance its operational efficiency and resource extraction capabilities.

EMS USA is an integrated solution provider for all pipeline and facility maintenance, integrity, measurement and automation services.

AFGlobal Corporation is an oil and energy company specializing in subsea pipeline components and forged products. Their Corporation is a technology and manufacturing specialist working to enhance their clients' success around the world. They align well-established precision engineering with evolutionary innovation. Their unique approach combines conventional OEM processes and technology with unconventional thinking, providing reliable answers and establishing quicker ways to find the best solutions for their clients.

Dyer & Butler, founded in 1979, is a regional contractor with a strong financial and technical foundation, offering a diverse range of engineering services. The company serves various sectors, including aviation, rail, defense, and marine industries, specializing in civil, mechanical, and electrical engineering. Dyer & Butler is involved in the construction, maintenance, and renewal of infrastructure, delivering projects of all sizes while focusing on civil engineering and building works.

Texas American Resources Company is a privately held independent oil and gas exploration firm based in Austin, Texas. Founded in 1990 by David E. Honeycutt, the company manages and operates over 90,000 acres of oil and gas assets, primarily in South Texas and the Texas Panhandle. Texas American Resources focuses on developing its oil portfolio through a combination of technology-driven organic development and strategic acquisitions. With a multi-disciplined team specializing in geology, engineering, finance, and land management, the company employs a subsurface-driven approach to maximize hydrocarbon recovery efficiently and responsibly. Over its 25 years of operation, Texas American Resources has executed acquisitions and divestitures totaling more than $500 million, underscoring its commitment to growth and innovation in the oil and gas sector.

Applied-Cleveland Holdings, Inc. provides third party inspection services for the maintenance of oil and natural gas transmission, distribution, midstream and gathering lines, and other critical infrastructure. Other infrastructure includes refinery, power plant, compressor and pump stations, and mechanical integrity projects. A-C also offers complementary, specialized nondestructive and qualification services across the entire spectrum of the industry.

Morrison Utility Services (“MUS” or “the company”), the leading provider of utility infrastructure services in the United Kingdom.

Plains All American Pipeline, L.P. is a prominent player in the energy sector, specializing in the transportation, storage, and marketing of crude oil and natural gas liquids (NGL) across the United States and Canada. Founded in 1998 and headquartered in Houston, Texas, the company operates through three main segments: Transportation, Facilities, and Supply and Logistics. The Transportation segment manages an expansive network of approximately 18,535 miles of active pipelines and gathering systems, enhancing its capacity to transport crude oil and NGL via diverse methods, including pipelines and barges. The Facilities segment focuses on storage and terminalling services, boasting significant storage capacities for crude oil, NGL, and natural gas, alongside various processing facilities. Lastly, the Supply and Logistics segment is involved in purchasing and marketing crude oil and NGL, managing inventories, and utilizing a fleet of trucks, trailers, and railcars for transportation. Plains All American Pipeline handles over 3.5 million barrels of crude oil and NGL daily, emphasizing its critical role in the energy supply chain, particularly in North America's major production areas.

Navigator Energy Services, LLC is an independent midstream company that specializes in developing and delivering essential midstream infrastructure solutions for oil and gas producers. The company focuses on providing a range of services, including crude and gas gathering, tank construction, mainline transportation, project planning, and business development. By prioritizing operational flexibility and maximizing the value of hydrocarbons, Navigator Energy Services aims to meet the increasing demands of the energy sector effectively.

Hoover Ferguson Group, Inc. specializes in providing a wide range of intermediate bulk containers (IBCs), tote tanks, offshore containers, and intermodal tank containers, primarily for the storage and transportation of chemicals and liquids. The company also offers specialized equipment such as offshore half-height baskets, mud skips, and compactors, as well as technology services that include asset tracking and tank level monitoring. With a strong focus on durability and quality, Hoover Ferguson serves multiple industries, including oil and gas, petrochemical, food and beverage, and pharmaceuticals. Founded in 1911 and headquartered in Houston, Texas, the company has expanded its reach globally, with operations in locations such as Australia, Brazil, Europe, Asia, the United Arab Emirates, and the United States, and a chemical repackaging facility in Aberdeen, Scotland. Through its rich legacy of over a century in manufacturing, Hoover Ferguson continues to deliver reliable solutions and services tailored to the needs of diverse sectors.

TNT Crane & Rigging, Inc. is a provider of hydraulic truck cranes and lifting services based in Houston, Texas. Established in 1985, the company serves various sectors including oil and gas, refining, petrochemical, power, construction, and industrial markets across the United States. Its services encompass rigging, transportation, and specialized lifting solutions, including wind farm construction and maintenance, and the erection and installation of commercial machinery. TNT Crane & Rigging focuses on delivering unique solutions to complex challenges, utilizing equipment such as cranes, gantry jacks, forklifts, and trailers.

Ascent Resources is an oil and gas exploration and production company that specializes in acquiring, developing, and producing natural gas and oil in the Appalachian Basin. The company holds approximately 300,000 net acres of land in this region, which is known for its significant potential for shale oil, liquids, and natural gas. Ascent Resources is committed to providing equal employment opportunities to all individuals, ensuring a diverse and inclusive workplace.

TPC Group Inc. is a chemicals manufacturer that specializes in producing value-added products derived from petrochemical raw materials, primarily focusing on C4 hydrocarbons. The company operates in two main segments: C4 Processing and Performance Products. The C4 Processing segment offers butadiene for synthetic rubber production, butene-1 for plastic resins, and other derivatives critical for gasoline blending and alkylate manufacturing. In the Performance Products segment, TPC Group provides high purity isobutylene for synthetic rubber and lubricant additives, along with polyisobutylenes used in various applications including adhesives and sealants. Additionally, the company offers diisobutylene, nonene, and tetramer for the production of surfactants and plasticizers. Founded in 1943 and headquartered in Houston, Texas, TPC Group has evolved from its original name, Texas Petrochemicals Inc., which it changed in 2010. The company also plays a crucial role in providing infrastructure and logistics services along the Gulf Coast, supporting its extensive operations in the chemical and petroleum sectors.

Amromco Energy LLC is an independent exploration and production company headquartered in Houston, Texas, with additional offices in New York and Romania. The company specializes in enhancing existing oil and gas fields in emerging markets, particularly in Romania, where it became the first private entity to produce hydrocarbons in fifty years, starting gas production in June 2003. Amromco operates enhancement activities for twenty-eight gas fields in Romania and is actively seeking further opportunities in Romania and other countries in Central and South East Europe. Its services encompass drilling, location preparation, and natural gas production management.

Barra Energia Petroleo e Gas is an oil exploration and production company based in Rio de Janeiro, Brazil, focusing on offshore basins. It specializes in leveraging technical and commercial expertise, along with local knowledge, to identify, develop, and produce hydrocarbon resources. As one of the pioneering independent Brazilian firms to invest in pre-salt assets, Barra Energia holds a stake in a post-salt producing field in the Santos Basin, along with interests in other petroleum basins such as Campos and Espírito Santo. The company’s operations reflect a commitment to harnessing Brazil's rich oil resources in a rapidly evolving energy market.

Acteon Group Limited specializes in providing subsea services tailored for the oil and gas industry, both in the United Kingdom and internationally. The company offers a range of services, including high precision subsea measurement, monitoring, and data management of assets and their environments. Additionally, Acteon delivers riser and mooring services, which encompass the design, supply, installation, relocation, and decommissioning of infrastructure. The company also provides machinery rental services to support various operations. In addition to its oil and gas focus, Acteon extends its expertise to the renewable energy and nearshore construction sectors, offering engineering services and technology that enhance operational efficiency and reduce costs and environmental impact for marine infrastructure projects.

Quanta Services, Inc. is a prominent provider of specialty contracting services, focusing on comprehensive infrastructure solutions for the electric power, oil and natural gas, and communications industries across the United States, Canada, Australia, and Latin America. The company operates through several segments, including Electric Power Infrastructure Services, which encompasses the design, installation, maintenance, and repair of electric power transmission and distribution systems, as well as substation facilities and smart grid technologies. Additionally, Quanta's Pipeline and Industrial Infrastructure Services segment offers services related to pipeline transmission and distribution systems, including installation, repair, and maintenance, along with trenching and mechanized welding. The company also engages in emergency restoration services for infrastructure affected by adverse weather conditions, and it plays a role in renewable energy projects, such as solar and wind generation facilities. Founded in 1997 and headquartered in Houston, Texas, Quanta Services serves a diverse clientele, including electric power, energy, and communications companies, as well as commercial and governmental entities.

Quanta Services, Inc. is a prominent provider of specialty contracting services, focusing on comprehensive infrastructure solutions for the electric power, oil and natural gas, and communications industries across the United States, Canada, Australia, and Latin America. The company operates through several segments, including Electric Power Infrastructure Services, which encompasses the design, installation, maintenance, and repair of electric power transmission and distribution systems, as well as substation facilities and smart grid technologies. Additionally, Quanta's Pipeline and Industrial Infrastructure Services segment offers services related to pipeline transmission and distribution systems, including installation, repair, and maintenance, along with trenching and mechanized welding. The company also engages in emergency restoration services for infrastructure affected by adverse weather conditions, and it plays a role in renewable energy projects, such as solar and wind generation facilities. Founded in 1997 and headquartered in Houston, Texas, Quanta Services serves a diverse clientele, including electric power, energy, and communications companies, as well as commercial and governmental entities.

CiDRA Holdings LLC, founded in 1996 and headquartered in Wallingford, Connecticut, develops innovative instrumentation solutions for measurement, monitoring, and control across various industries. The company specializes in flow and entrained air measurement, grind management, and process optimization, utilizing its patented SONARtrac® flow technology, which is particularly effective in challenging slurry applications within the energy and natural resource sectors. CiDRA's products and services cater to industries such as minerals processing, oil sands, concrete, power generation, dredging, and water/wastewater, helping over 250 customers in 21 countries to enhance process efficiency, maximize recovery, and reduce operational costs. By converting data into actionable insights, CiDRA supports businesses in achieving their performance goals and optimizing industrial operations.