Western Midstream Partners, LP, together with its subsidiaries, operates as a midstream energy company primarily in the United States. It is involved in gathering, compressing, treating, processing, and transporting natural gas; gathering, stabilizing, and transporting condensate, natural gas liquids (NGLs), and crude oil; and gathering and disposing produced water. The company also buys and sells natural gas, NGLs, and condensate. It operates assets located in Texas, New Mexico, the Rocky Mountains, and North-central Pennsylvania. Western Midstream Holdings, LLC operates as the general partner of the company. The company was formerly known as Western Gas Equity Partners, LP and changed its name to Western Midstream Partners, LP in February 2019. Western Midstream Partners, LP was incorporated in 2007 and is based in The Woodlands, Texas.

Alliance Resource Partners, L.P., a diversified natural resource company, produces and markets coal primarily to utilities and industrial users in the United States. The company operates through four segments: Illinois Basin Coal Operations, Appalachia Coal Operations, Oil & Gas Royalties, and Coal Royalties. It produces a range of thermal and metallurgical coal with sulfur and heat contents. The company operates seven underground mining complexes in Illinois, Indiana, Kentucky, Maryland, Pennsylvania, and West Virginia. In addition, it owns and leases oil and gas mineral interests and equity interests; and leases its coal mineral reserves and resources to its mining complexes; and leases land and operates a coal loading terminal on the Ohio River at Mt. Vernon, Indiana. Further, the company offers various mining technology products and services, including data network, communication and tracking systems, mining proximity detection systems, industrial collision avoidance systems, and data and analytics software. It also exports its products. The company was founded in 1971 and is headquartered in Tulsa, Oklahoma.

Alpha Metallurgical Resources, Inc., a mining company, produces, processes, and sells met and thermal coal in Virginia and West Virginia. The company offers metallurgical coal products. It operates twenty-two active mines and nine coal preparation and load-out facilities. 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 headquartered in Bristol, Tennessee.

American Battery Technology Company operates as a battery materials company in the United States. The company explores for resources of battery metals, such as lithium, nickel, cobalt, and manganese; and develops and commercializes technologies for the extraction and refining of battery metals. It also commercializes an integrated process for the recycling of lithium-ion batteries. The company was formerly known as American Battery Metals Corporation and changed its name to American Battery Technology Company in August 2021. American Battery Technology Company was incorporated in 2011 and is headquartered in Reno, Nevada.

Electra Battery Materials Corporation engages in the acquisition and exploration of resource properties in the United States and Canada. It primarily explores for cobalt, copper, and silver deposits. The company's flagship project comprises the Iron Creek cobalt-copper project that includes patented and unpatented claims totaling an area of approximately 3,260 hectares and 600 meters of underground drifting from three adits located in Lemhi County, Idaho. It also operates a hydrometallurgical cobalt refinery for producing battery materials for the electric vehicle supply chain. The company was formerly known as First Cobalt Corp. and changed its name to Electra Battery Materials Corporation in December 2021. Electra Battery Materials Corporation was incorporated in 2011 and is headquartered in Toronto, Canada.

Energy Fuels Inc., together with its subsidiaries, engages in the extraction, recovery, recycling, exploration, permitting, evaluation, and sale of uranium mineral properties in the United States. The company produces and sells vanadium pentoxide, rare earth elements, and heavy mineral sands, such as ilmenite, rutile, zircon, and monazite. The company was formerly known as Volcanic Metals Exploration Inc. and changed its name to Energy Fuels Inc. in May 2006. Energy Fuels Inc. was incorporated in 1987 and is headquartered in Lakewood, Colorado.

Uranium Energy Corp., together with its subsidiaries, engages in exploration, pre-extraction, extraction, and processing of uranium and titanium concentrates properties in the United States, Canada, and the Republic of Paraguay. The company owns interests in the Allemand-Ross, Antelope, Barge, Black Hills, Brown Ranch, Bull Springs, Central Shirly Basin, Charlie, Christensen Ranch, Clarkson Hills, Crooks Creek, Crook's Mountain, Crossroads, Cyclone Rim, East Shirley Basin, Gas Hills, Horse Creek, Irigaray, Jab/West Jab, Ludeman, Moore Ranch, Mule Creek, Niles Ranch, Nine Mile Lake, Pine Ridge, Pine Tree U1, Pumpkin Creek, Red Rim, Reno Creek, Ross Flats, Sand Creek, South Pine Ridge, South Reno Creek, South Sweetwater, Stewart Creek, Taylor Ranch, Twin Buttes, West Beaver Rim, West Crook's Creek, and West Sweetwater properties located in Wyoming, the United States; and Burke Hollow, Goliad, La Palangana, Salvo, and Longhorn projects situated in Texas. It also owns the Anderson, Los Cuatros, and Workman Creek mines located in Arizona; C de Baca and Dalton Pass projects situated in New Mexico; Alexandra, Beatty River, Black Lake, Brander Lake, Candle Lake, Carswell, Christie Lake, Close Lake, Cree Extension, Diabase Peninsula, Erica, Henday, Hidden Bay, Horseshoe-Raven, Key West, Laurie, Millennium, Milliken, Mirror River, Moon Lake, Moore Tomblin, Nikita, Riou Lake, Roughrider, Shea Creek, Uchrich, Waterfound River, West Bear, Wheeler River, and Wolly properties located in Saskatchewan, Canada; and Kiggavik project situated in Nunavut, and the Yutty and Oviedo properties located in Paraguay, as well as owns and operates a processing plants and facilities, consisting of Irigaray Central and Christensen Ranch in Wyoming; and Hobson Central in Texas. The company was formerly known as Carlin Gold Inc. and changed its name to Uranium Energy Corp. in January 2005. Uranium Energy Corp. was incorporated in 2003 and is headquartered in Corpus Christi, Texas.

Ur-Energy Inc. engages in the acquisition, exploration, development, and operation of uranium mineral properties. The company holds interests in 12 projects located in the United States. Its flagship property is the Lost Creek project comprising a total of approximately 1,800 unpatented mining claims and three Wyoming mineral leases covering an area of approximately 35,400 acres located in the Great Divide Basin, Wyoming. The company was incorporated in 2004 and is headquartered in Littleton, Colorado.