Gran Tierra Energy Inc., together with its subsidiaries, engages in the exploration and production of oil and gas properties in Colombia and Ecuador. As of December 31, 2020, it had total proved undeveloped reserves of 26.2 million barrels of oil equivalent in Colombia. The company was incorporated in 2003 and is headquartered in Calgary, Canada.

PGS ASA, together with its subsidiaries, operates as a marine geophysical company primarily in Norway. The company provides a range of seismic and reservoir services, including acquisition, imaging, interpretation, and field evaluation to oil and gas companies. It also operates in Angola, the Asia Pacific, Brazil, Egypt, other African countries, the United Kingdom, Guyana, Canada, the Middle East, the Americas, and internationally. The company was formerly known as Petroleum Geo-Services ASA and changed its name to PGS ASA in May 2019. PGS ASA was founded in 1991 and is headquartered in Oslo, Norway.

Ramaco Resources, Inc. produces and sells metallurgical coal. The company's development portfolio includes the Elk Creek project consisting of approximately 20,166 acres of controlled mineral and 25 seams located in southern West Virginia; the Berwind property comprising approximately 31,200 acres of controlled mineral and an area of Squire Jim seam coal deposits, which is situated on the border of West Virginia and Virginia; the Knox Creek property consisting of approximately 62,100 acres of controlled mineral that is located in Virginia; and the RAM Mine property comprising approximately 1,570 acres of controlled mineral, which is situated in southwestern Pennsylvania. The company serves blast furnace steel mills and coke plants in the United States, as well as international metallurgical coal consumers. The company was founded in 2015 and is headquartered in Lexington, Kentucky.

Banpu Public Company Limited engages in the coal mining and power businesses. It holds an interest in a 1,434 MW coal-fired power plant in Map Ta Phut Industrial Estate, Rayong Province, Thailand. The company also manages five coal mines in Kalimantan comprising Indominco, Jorong, Kitadin-Embalut, Trubaindo, and Bharinto, which produce a range of bituminous and sub-bituminous thermal coals in Indonesia. In addition, it operates the Gaohe mine in Shanxi Province and Hebi mine in Henan Province; operates and manages 3 coal-fired combined heat and power plants with a capacity of 539 megawatts in China; and owns 10 coal mines located in New South Wales, Australia. Further, the company operates various coal project in Mongolia; thermal power plants in Lao PDR; wind farm in Vietnam; and solar farms in Japan. Additionally, it provides solar rooftop solutions and installation for industries and large businesses; energy storage solutions; electric vehicle and fleet management services; consultation services on customized energy management system; and renewable energy ecosystem for clean energy. The company also involved in the power and steam production, purchase, and trading business; provident fund management; solar power generation; logistics; sales and marketing activities; natural gas business; investment in power and renewable energy; and research and development business. It also provides coal mining and trading; and business consultancy services, as well as fuel trading services. The company was formerly known as Ban Pu Coal Company Limited and changed its name to Banpu Public Company Limited in July 1993. Banpu Public Company Limited was founded in 1983 and is headquartered in Bangkok, Thailand.

VAALCO Energy, Inc., an independent energy company, acquires, explores for, develops, and produces crude oil and natural gas. The company holds Etame production sharing contract related to the Etame Marin block located offshore in the Republic of Gabon in West Africa. It also owns interests in an undeveloped block offshore Equatorial Guinea, West Africa. VAALCO Energy, Inc. was incorporated in 1985 and is headquartered in Houston, Texas.

Exterran Corporation, a systems and process company, provides various solutions in the oil, gas, water, and power markets worldwide. The company operates through three segments: Contract Operations, Aftermarket Services, and Product Sales. It offers compression, processing, and treating services through the operation of natural gas compression equipment, and crude oil and natural gas production and process equipment; and water treatment and power generation solutions. The company also sells parts and components; and provides operation, maintenance, overhaul, upgrade, startup and commissioning, and reconfiguration services. In addition, it designs, engineers, manufactures, sells, and installs equipment used in the treating and processing of crude oil, natural gas, natural gas compression packages, and water treatment, including cryogenic plants, mechanical refrigeration and dew point control plants, condensate stabilizers, wellheads, gatherings, residue and high pressure natural gas compression equipment, water treatment equipment, integrated power generation, and skid-mounted production packages for onshore and offshore production facilities. Further, the company sells custom-engineered and built-to-specification natural gas and oil processing and treating equipment; and skid-mounted natural gas compression equipment and pre-engineered compressor units. It serves integrated and national oil and natural gas companies, national energy companies, and independent oil and natural gas producers, as well as oil and natural gas processors, gatherers, and pipeline operators. The company was founded in 1954 and is headquartered in Houston, Texas.

Alpha Metallurgical Resources, Inc. operates as a mining company. It produces, processes, and sells met coal and thermal coal in Virginia and West Virginia. It operates through two segments, Met and CAPP-Thermal. The Met segments operates five active mines and two preparation plants in Virginia; and seventeen active mines and five preparation plants in West Virginia. The CAPP - Thermal segments operates one active mine and one preparation plant in West Virginia. The company was formerly known as Contura Energy, Inc. and changed its name to Alpha Metallurgical Resources, Inc. in February 2021. Alpha Metallurgical Resources, Inc. was incorporated in 2016 and is based in Bristol, Tennessee.

NextDecade Corporation, a liquefied natural gas (LNG) development company, engages in the development activities related to the liquefaction and sale of LNG. It focusses on the development activities of Rio Grande LNG terminal facility located in the Port of Brownsville, southern Texas. The company is headquartered in Houston, Texas.

Maha Energy AB (publ), an independent and international oil and gas company, engages in the exploration, development, and production of crude oil and natural gas. The company owns 75% working interest in the Tartaruga Block covering an area of 5,944 acres located in the Sergipe, Brazil; 99% working interest in the LAK Ranch property, which covers 6,475 acres situated in Wyoming, the United States; 100% working interest in the Tie Field project covering an area of 1,511 acres located in Bahia, Brazil; 96% working interest in the Illinois Basin property that covers an area of 4,039 acres situated in Illinois, the United States; and 100% working interest in the Mafraq project covering an area of 157,900 acres in Oman. As of December 31, 2020, it had proven and probable reserves of 47.90 million barrels of oil equivalent. The company was founded in 2013 and is headquartered in Stockholm, Sweden.

PHX Minerals Inc. operates as a natural gas and oil mineral company in the United States. The company produces and sells natural gas, crude oil, and natural gas liquids. Its principal properties are located in Oklahoma, Texas, Louisiana, North Dakota, and Arkansas. As of September 30, 2021, the company owned perpetual ownership of 251,600 net mineral acres; leased 18,298 net acres; and held working interests and royalty interests in 6,457 producing oil and natural gas wells, as well as had 277 wells in the process of being drilled or completed. It sells its products to various purchasers, including pipeline and marketing companies. The company was formerly known as Panhandle Oil and Gas Inc. and changed its name to PHX Minerals Inc. in October 2020. PHX Minerals Inc. was founded in 1926 and is based in Oklahoma City, Oklahoma.

Surge Energy Inc. explores for, develops, and produces oil and gas in western Canada. The company holds interest in the Greater Sawn Lake assets located in Northern Alberta; Valhalla/Wembley property located in northwestern Alberta; Sparky assets located between Provost and Wainwright in eastern Alberta and western Saskatchewan; and Shaunavon properties located to the southwest of Swift Current, Saskatchewan. It holds an average working interest of approximately 83% in approximately 109,941 net developed acres and approximately 92% in approximately 152,344 net undeveloped acres in Greater Sawn area; approximately 70% in approximately 16,032 net developed acres and approximately 74% in approximately 8,208 net undeveloped acres in Valhalla area; and approximately 76% in approximately 80,213 net developed acres and 96% in approximately 58,598 net undeveloped acres in Sparky area; and approximately 61% in approximately 88,178 net developed acres and approximately 39% in approximately 10,483 net undeveloped acres in Edmonton and other minor areas. As of December 31, 2020, it held interests in 316 net oil and 13 net gas wells in Greater Sawn area; 56 net oil and 4 net gas wells in Valhalla area; 466 net oil and 10 net gas wells in Sparky area; 176 net oil wells, as well as an average working interest of approximately 100% in approximately 23,409 net developed acres and 13,698 net undeveloped acres in the Shaunavon properties; and 28 net oil wells and 7 net gas wells in Edmonton and other minor areas. The company was formerly known as Zapata Energy Corporation and changed its name to Surge Energy Inc. in June 2010. Surge Energy Inc. was incorporated in 1998 and is headquartered in Calgary, Canada.

Mitsui Matsushima Holdings Co., Ltd. engages in the production and sale of coal products in Japan and internationally. It also produces and markets coal to steel mills, power utilities, and general industries; and operates, generates, and sells solar power to electric power companies. In addition, the company provides coal mine development/operation and coal preparation technologies; shredders, office security products, pouches, and window guidance systems; mask blanks to photomask manufacturers for various applications; straw products for dairy and beverage companies; paper and PET beverage cup and food package products for various customers; custom-made suits, as well as manufactures and sells facilities and measuring equipment for the production of crystal devices. Further, it engages in the provision of nursing care services for the elderly, in-home, and outpatient; operation of coal storage and transportation equipment, sample testing of coal, inspection of conveyors used to transport ash and gypsum, and deployment and recovery of marine oil fences; operation of an LPG filling station in Saikai city, as well as the convenience store; provision of investment and lending services to coal mines; and port and harbor businesses. Additionally, the company sells food containers; manages elderly housing; produces and sells men's and women's clothing and dress shirts; and provides mining instruction, ventilation analysis, safety and security, and rescue and relief training services. The company was formerly known as Mitsui Matsushima Co., Ltd. and changed its name to Mitsui Matsushima Holdings Co., Ltd. in 2018. Mitsui Matsushima Holdings Co., Ltd. was founded in 1913 and is headquartered in Fukuoka, Japan.

Sunoco LP, together with its subsidiaries, distributes and retails motor fuels in the United States. It operates in two segments, Fuel Distribution and Marketing, and All Other. The Fuel Distribution and Marketing segment purchases motor fuel from independent refiners and oil companies and supplies it to independently operated dealer stations, distributors and other consumer of motor fuel, and partnership operated stations, as well as to commission agent locations. The All Other segment operates retail stores that offer motor fuel, merchandise, foodservice, and other services that include credit card processing, car washes, lottery, automated teller machines, money orders, prepaid phone cards, and wireless services. It also leases and subleases real estate properties; and operates terminal facilities on the Hawaiian Islands. As of December 31, 2020, the company operated 78 retail stores in Hawaii and New Jersey. Sunoco GP LLC serves as the general partner of the company. The company was formerly known as Susser Petroleum Partners LP and changed its name to Sunoco LP in October 2014. Sunoco LP was incorporated in 2012 and is headquartered in Dallas, Texas.

Equinor ASA, an energy company, engages in the exploration, production, transportation, refining, and marketing of petroleum and petroleum-derived products, and other forms of energy, as well as other businesses in Norway and internationally. The company operates in five segments: Exploration Norway; Exploration & Production (E&P) International; E&P USA; Marketing, Midstream & Processing; and Other. It also transports, processes, manufactures, markets, and trades in oil and gas commodities, such as crude and condensate products, gas liquids, natural gas, and liquefied natural gas; markets and trades in electricity and emission rights; and operates refineries, terminals and processing, and power plants; and develops low carbon solutions for oil and gas. In addition, the company develops wind, and carbon capture and storage projects, as well as offers other renewable energy. As of December 31, 2020, it had proved oil and gas reserves of 5,260 million barrels of oil equivalent. Equinor ASA has a strategic collaboration agreement with SINTEF. The company was formerly known as Statoil ASA and changed its name to Equinor ASA in May 2018. Equinor ASA was incorporated in 1972 and is headquartered in Stavanger, Norway.

Falcon Minerals Corporation acquires and owns mineral, royalty, and over-riding royalty interests in oil and natural gas properties in North America. It owns interests covering approximately 256,000 gross unit acres in the Eagle Ford Shale and Austin Chalk in Karnes, DeWitt, and Gonzales Counties in Texas, as well as approximately 75,000 gross unit acres in the Marcellus Shale across Pennsylvania, Ohio, and West Virginia. The company is based in New York, New York.

Murphy Oil Corporation operates as an oil and natural gas exploration and production company in the United States, Canada, and internationally. It explores for and produces crude oil, natural gas, and natural gas liquids. The company was formerly known as Murphy Corporation and changed its name to Murphy Oil Corporation in 1964. Murphy Oil Corporation was incorporated in 1950 and is headquartered in Houston, Texas.

PTT Exploration and Production Public Company Limited, together with its subsidiaries, engages in the exploration and production of petroleum in Thailand and internationally. It is also involved in gas pipeline transportation business; investment funding; the provision of petroleum-related technology; and the provision of petroleum products, such as natural gas, crude oil, condensate, naphtha and liquefied petroleum gas. The company was founded in 1985 and is headquartered in Bangkok, Thailand. PTT Exploration and Production Public Company Limited is a subsidiary of PTT Public Company Limited.

Hokkaido Gas Co., Ltd. engages in gas, and heat and power supply businesses in Japan. The company is also involved in the purification and sale of gas by-products; production and sale of gas appliances, as well as related construction works; and other related works. It offers its services in Sapporo, Otaru, Hakodate, Chitose, Ishikari, Kitahiroshima, Eniwa, Hokuto, and Kitami. Hokkaido Gas Co., Ltd. was founded in 1911 and is headquartered in Sapporo, Japan.

NuVista Energy Ltd., a condensate and natural gas company, engages in the development, delineation, and production of condensate, oil, and natural gas reserves in the Western Canadian Sedimentary Basin. It primarily focuses on the condensate-rich Montney formation in the Wapiti area of the Alberta Deep Basin. The company was incorporated in 2003 and is headquartered in Calgary, Canada.

Adams Resources & Energy, Inc., through its subsidiaries, primarily engages in the marketing, transportation, terminalling, and storage of crude oil in the United States. The company operates in three segments: Crude Oil Marketing, Transportation and Storage; Tank truck Transportation of Liquid Chemicals, Pressurized Gases, Asphalt and Dry Bulk; and Pipeline Transportation, Terminalling and Storage of Crude Oil. It purchases crude oil and arranges sales and deliveries to refiners and other customers primarily onshore in Texas, Oklahoma, North Dakota, Michigan, and Louisiana; and owns and operates a fleet of 191 tractor-trailer rigs and maintains approximately 175 pipeline inventory locations or injection stations. The company also transports liquid chemicals, pressurized gases, asphalt, and dry bulk on a for hire basis in the continental United States, and into Canada and Mexico; and operates truck terminals in Houston, Corpus Christi, Nederland, Freeport, Baton Rouge, St. Rose, Boutte, Mobile, Charlotte, Sterlington, St. Louis, Cincinnati, Atlanta, Tampa, and Jackson. In addition, it operates crude oil and condensate pipeline system, which connects the Eagle Ford Basin to the Gulf Coast waterborne market that has a capacity of 90,000 barrels per day. Adams Resources & Energy, Inc. was founded in 1947 and is headquartered in Houston, Texas.

Bangchak Corporation Public Company Limited, an energy company, engages in the refining and marketing of petroleum products. It operates through Refinery and Oil Trading, Marketing, Electricity, Bio-Based Product, Natural Resource, and Other segments. The company explores and produces petroleum, biodiesel, and ethanol; produces electricity through solar, wind, and geothermal; mines lithium; and operates service stations. The company markets its oil products to various sectors, including transportation, aviation, shipping, construction, industrial, and agriculture sectors through oil traders. It operates in Thailand, Malaysia, Japan, Korea, the Philippines, Singapore, Indonesia, Norway, and internationally. The company was formerly known as The Bangchak Petroleum Public Company Limited and changed its name to Bangchak Corporation Public Company Limited in April 2017. Bangchak Corporation Public Company Limited was founded in 1984 and is headquartered in Bangkok, Thailand.