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 is a midstream services provider that focuses on the development and delivery of infrastructure related to natural gas and natural gas liquids. Founded in 2012 and headquartered in Dallas, Texas, the company specializes in natural gas gathering, compression, treating, processing, and transportation. Additionally, it provides condensate handling along with the fractionation, storage, transportation, and marketing of natural gas liquids. Blue Racer operates significant facilities in Marshall County, West Virginia, and Ohio, facilitating access to midstream services for customers in the Appalachian basin. The company is a joint venture between Dominion Resources and Caiman Energy II, enabling it to effectively serve the natural gas market and optimize price realizations for its clients.

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 engaged in consolidating interests in these formations, focusing on enhancing its operational efficiency and maximizing resource extraction. Through its strategic initiatives, Lucero Energy aims to capitalize on the rich hydrocarbon potential of the region, positioning itself as a significant player in the North Dakota oil industry.

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 engaged in consolidating interests in these formations, focusing on enhancing its operational efficiency and maximizing resource extraction. Through its strategic initiatives, Lucero Energy aims to capitalize on the rich hydrocarbon potential of the region, positioning itself as a significant player in the North Dakota oil industry.

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 that specializes in subsea pipeline components and forged products. It is recognized for its expertise in technology and manufacturing, aiming to enhance client success on a global scale. The company combines established precision engineering with innovative practices, offering a unique approach that merges traditional original equipment manufacturer (OEM) processes with creative problem-solving. This allows AFGlobal to provide reliable solutions and expedite the development of effective answers for its clients in the energy sector.

Dyer & Butler, established in 1979, is a regional contractor known for its strong financial and technical foundation. The company specializes in providing engineering services to various industries, including aviation, rail, defense, and marine. Dyer & Butler's expertise spans civil, mechanical, and electrical engineering works. They are involved in building, maintaining, and renewing infrastructure, delivering civil engineering projects of all sizes.

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 dedicated to developing and delivering comprehensive infrastructure solutions for oil and gas producers. The company specializes in providing a range of midstream services, including crude and gas gathering, tank construction, mainline transportation, project planning, and business development. By focusing on operational flexibility and maximizing the value of hydrocarbons, Navigator Energy Services aims to meet the increasing demand for efficient midstream solutions in the energy sector.

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 the acquisition, development, and production of natural gas and oil, primarily within the Appalachian Basin. The company holds a significant position in this region, with ownership of approximately 300,000 net acres of land that are rich in shale oil, liquids, and natural gas resources. Ascent Resources is committed to providing equal employment opportunities to all individuals, ensuring a diverse and inclusive workplace.

TPC Group Inc. is a Houston-based chemicals company that specializes in producing value-added products from petrochemical raw materials. Founded in 1943 and originally known as Texas Petrochemicals Inc., the company operates in two primary segments: C4 Processing and Performance Products. The C4 Processing segment focuses on the production of butadiene, butene-1, raffinates, and methyl tertiary butyl ether, which are essential in the manufacture of synthetic rubber, plastic resins, and gasoline blending stocks. The Performance Products segment offers high-purity isobutylene, conventional and highly reactive polyisobutylenes, diisobutylene, as well as nonene and tetramer, which are utilized in various applications, including lubricants, surfactants, and coatings. In addition to its chemical manufacturing, TPC Group provides critical infrastructure and logistics services along the Gulf Coast, serving major clients in the chemical and petroleum industries across North America.

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, primarily in emerging markets such as Romania, where it has made significant contributions to hydrocarbon production. Amromco is notable for being the first private entity to produce hydrocarbons in Romania in fifty years, having commenced gas production in June 2003. It operates enhancement activities across twenty-eight gas fields in Romania and is actively seeking further opportunities in Romania and other Central and South East European countries. The company's operations encompass drilling, location preparation, and the management of natural gas production services.

Barra Energia Petroleo e Gas is an oil exploration and production company based in Rio de Janeiro, Brazil, with a focus on offshore basins. The company is recognized for being one of the first independent Brazilian firms to invest in pre-salt assets and currently holds a stake in a post-salt producing field located in the Santos Basin. Barra Energia leverages its technical and commercial expertise, along with local knowledge, to identify, develop, and produce hydrocarbon resources in various petroleum basins, including Santos, Campos, and Espírito Santo.

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 is a provider of innovative instrumentation solutions focused on measurement, monitoring, and control applications across various industries. Founded in 1996 and headquartered in Wallingford, Connecticut, the company specializes in flow and entrained air measurement, as well as grind management products. CiDRA is recognized for its patented SONARtrac® flow technology, which offers a unique approach to measuring flow in challenging slurry applications, particularly within the energy and natural resource sectors. The company's offerings are designed to deliver real-time process monitoring, enabling clients to enhance process efficiency, maximize recovery, and reduce operational costs. CiDRA serves a diverse range of industries, including minerals processing, oil sands, power generation, dredging, and water/wastewater, with a growing international presence and a customer base exceeding 250 across 21 countries.