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Company directory

Inspection, engineering, and service companies across the oil and gas industry.

215 companies

Chart Industries

Chart Industries

Georgia-based maker of cryogenic and gas processing equipment for LNG, hydrogen, industrial gas and carbon capture projects, and of Howden compression and fan systems.

equipment-suppliers

Chevron

Chevron

Chevron Corporation is an integrated energy company founded in 1879 as the Pacific Coast Oil Company. It is headquartered in San Ramon, California, and is publicly traded on the NYSE under CVX.

exploration-productionrefining-petrochemicalstrading-marketing

China Oilfield Services (COSL)

China Oilfield Services (COSL)

Chinese offshore oilfield services group supplying drilling rigs, well services, seismic survey and support vessels, listed in Hong Kong and Shanghai.

drilling-contractorsoilfield-services

Clean Harbors

Clean Harbors

Norwell, Massachusetts-based hazardous waste and industrial services group running incineration, landfill and re-refining assets for refineries, chemical plants and oilfield customers.

water-environmentoilfield-services

Cognite

Cognite

Norwegian industrial data and AI software company whose Cognite Data Fusion platform contextualises plant and asset data for energy, power and process industries.

technology-software

ConocoPhillips

ConocoPhillips

ConocoPhillips is an exploration and production (E&P) company focused on the upstream oil and gas sector. It was formed in 2002 through the merger of Conoco Inc. and Phillips Petroleum Company and is headquartered in Houston, Texas, USA.

exploration-production

Covestro

Covestro

German polymer materials group in Leverkusen whose polyurethane and polycarbonate raw materials supply foam, coatings, adhesive and plastics markets; now part of the XRG platform.

chemicals-catalystsrefining-petrochemicals

DNV

DNV

Norwegian assurance and classification group that verifies ships, offshore structures and energy infrastructure and publishes widely used technical standards.

inspection-ndtengineering-consultingtraining-certification

DOF Group

DOF Group

Oslo-listed Norwegian offshore group at Austevoll running subsea construction, anchor handling and platform supply vessels with an in-house subsea services business.

logistics-marinesubsea-services

DeGolyer and MacNaughton

DeGolyer and MacNaughton

Dallas petroleum consultancy formed in 1936 that prepares reserves reports and technical studies for oil and gas producers, investors, regulators and governments.

engineering-consulting

Dow

Dow

Midland, Michigan-based materials science group producing polyethylene, polyurethanes and industrial intermediates, and supplying chemicals to oil and gas and refining customers.

chemicals-catalystsrefining-petrochemicals

ENEOS Holdings

ENEOS Holdings

Tokyo-listed holding company of Japan's largest fuel group, spanning refining and service-station retail, oil and gas exploration, metals and power generation.

refining-petrochemicalstrading-marketingpower-utilities

ENGIE

ENGIE

French energy group, listed in Paris, active in renewable generation and storage, gas and power networks, and the supply of low-carbon energy to customers.

power-utilitiesrenewables-transitionmidstream-pipelines

Ecolab

Ecolab

Minnesotan hygiene and water-treatment multinational whose industrial arm services cooling towers, steam boilers and process streams at refineries and power stations.

water-environmentchemicals-catalysts

Edison Chouest Offshore

Edison Chouest Offshore

Family-owned Louisiana marine group that designs, builds and operates more than 200 offshore support vessels through its own shipyards, port terminals and subsea companies.

logistics-marinesubsea-services

Emerson

Emerson

US automation group selling control systems, measurement instruments and valves to refineries, LNG and chemical plants, plus process software through Aspen Technology.

equipment-supplierstechnology-software

Enbridge

Enbridge

Enbridge Inc. is a multinational energy transportation company headquartered in Calgary, Alberta, Canada. Founded in 1949 as the Interprovincial Pipe Line Company, it operates crude oil and liquids pipelines, natural gas transmission and distribution, and renewable power projects.

midstream-pipelinespower-utilitiesrenewables-transition

Enel

Enel

Rome-headquartered utility operating regulated grids and a renewable fleet spanning hydro, wind, solar and geothermal capacity in Europe and the Americas.

power-utilitiesrenewables-transition

Energy Institute (EI)

Energy Institute (EI)

Chartered professional body for the global energy sector, based in London, granting chartered status and publishing the Statistical Review of World Energy.

government-associationstraining-certification

Energy Transfer

Energy Transfer

Dallas-based midstream partnership whose roughly 140,000 miles of US pipelines, processing plants, fractionators and Gulf Coast terminals handle gas, NGLs and crude.

midstream-pipelinestrading-marketing