Dorchester Minerals, L.P. engages in the acquisition, ownership, and administration of royalty properties in the United States. Its royalty properties include producing and nonproducing mineral, royalty, overriding royalty, net profits, and leasehold interests in 593 counties and parishes in 28 states; and net profits interests represent net profits overriding royalty interests in various properties owned by the operating partnership. Dorchester Minerals Management LP serves as the general partner of Dorchester Minerals, L.P. The company was founded in 1982 and is based in Dallas, Texas.

Sitio Royalties Corp. acquires, owns, and manages mineral and royalty interests across premium basins in the United States. The company's portfolio comprising of mineral and royalty interests in the Permian basin located in West Texas and southeastern New Mexico; the Eagle Ford basin located in South Texas; the DJ basin located in Colorado and Wyoming; and the Williston basin located in North Dakota. The company was founded in 2016 and is headquartered in Denver, Colorado.

Natural Resource Partners L.P., together with its subsidiaries, owns, manages, and leases a portfolio of mineral properties in the United States. It operates in two segments, Mineral Rights and Soda Ash. The company owns interests in coal, soda ash, trona, and other natural resources. Its coal reserves are primarily located in the Appalachia Basin, the Illinois Basin, and the Northern Powder River Basin in the United States; industrial minerals and aggregates properties located in the United States; and oil and gas properties located in Louisiana. The company leases a portion of its reserves in exchange for royalty payments; and owns and leases transportation and processing infrastructure related to coal properties. NRP (GP) LP serves as the general partner of the company. Natural Resource Partners L.P. was incorporated in 2002 and is headquartered in Houston, Texas.

Kimbell Royalty Partners, LP, together with its subsidiaries, engages in acquiring and owning mineral and royalty interests in oil and natural gas properties in the United States. It serves as the general partner of the company. The company was incorporated in 2015 and is based in Fort Worth, Texas.

Sabine Royalty Trust holds royalty and mineral interests in various producing oil and gas properties in the United States. Its royalty and mineral interests include landowner's royalties, overriding royalty interests, minerals, production payments, and other similar non-participatory interest in certain producing and proved undeveloped oil and gas properties located in Florida, Louisiana, Mississippi, New Mexico, Oklahoma, and Texas. Sabine Royalty Trust was founded in 1982 and is based in Dallas, Texas.

Amplify Energy Corp., together with its subsidiaries, engages in the acquisition, development, exploitation, and production of oil and natural gas properties in the United States. The company's properties consist of operated and non-operated working interests in producing and undeveloped leasehold acreage, as well as working interests in identified producing wells located in Oklahoma, the Rockies, federal waters offshore Southern California, East Texas/North Louisiana, and Eagle Ford. The company is based in Houston, Texas.

Mesa Royalty Trust owns overriding royalty interests in various oil and gas producing properties in the United States. It holds interests in properties located in the Hugoton field of Kansas; and the San Juan Basin field of Northwestern New Mexico and Southwestern Colorado. The company was founded in 1979 and is based in Houston, Texas.

Mexco Energy Corporation, an independent oil and gas company, engages in the acquisition, exploration, development, and production of natural gas, crude oil, condensate, and natural gas liquids in the United States. It owns partial interests in wells located in the states of Texas, New Mexico, Oklahoma, Louisiana, Alabama, Mississippi, Arkansas, Wyoming, Kansas, Colorado, Montana, Virginia, North Dakota, and Ohio. It also owns leasehold mineral, royalty, and other interests. The company was formerly known as Miller Oil Company and changed its name to Mexco Energy Corporation in April 1980. Mexco Energy Corporation was incorporated in 1972 and is based in Midland, Texas.