Black Stone Minerals, L.P., together with its subsidiaries, owns and manages oil and natural gas mineral interests. It owns mineral interests in approximately 16.8 million gross acres, nonparticipating royalty interests in 1.8 million gross acres, and overriding royalty interests in 1.6 million gross acres located in 41 states in the United States. The company was founded in 1876 and is based in Houston, Texas.

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.

Permian Basin Royalty Trust, an express trust, holds royalty interests in various oil and gas properties in the United States. The company holds a 75% net overriding royalty interest in the Waddell Ranch properties, including Dune, Sand Hills (Judkins), Sand Hills (McKnight), Sand Hills (Tubb), University-Waddell (Devonian) and Waddell fields in Crane County, Texas. It also holds a 95% net overriding royalty in the Texas Royalty properties, which consist of various producing oil fields, such as Yates, Wasson, Sand Hills, East Texas, Kelly-Snyder, Panhandle Regular, N. Cowden, Todd, Keystone, Kermit, McElroy, Howard-Glasscock, Seminole, and others located in Texas. Its Texas Royalty properties comprise approximately 125 separate royalty interests containing approximately 51,000 net producing acres. The company was founded in 1980 and is based in Dallas, Texas.

San Juan Basin Royalty Trust operates as an express trust in Texas. The company has a 75% net overriding royalty interest in Southland's oil and natural gas interests in properties located in the San Juan Basin in northwestern New Mexico. It also owns subject interests consist of working interests, royalty interests, overriding royalty interests, and other contractual rights in 119,000 net-producing acres in San Juan, Rio Arriba, and Sandoval Counties of northwestern New Mexico. The company was founded in 1980 and is based in Dallas, Texas.

Cross Timbers Royalty Trust operates as an express trust in the United States. It holds 90% net profits interests in certain producing and nonproducing royalty and overriding royalty interest properties in Texas, Oklahoma, and New Mexico; and 75% net profits working interest in four properties in Texas and three properties in Oklahoma. The company was founded in 1991 and is based in Dallas, Texas.

PermRock Royalty Trust operates as a statutory trust. It owns interests in the oil and natural gas producing properties. The company's underlying properties include 22,394 net acres in the Permian Basin. The company was founded in 2017 and is based in Dallas, 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.

Marine Petroleum Trust, together with its subsidiary, Marine Petroleum Corporation, operates as a royalty trust in the United States. It has overriding royalty interest in oil and natural gas leases in the Central and Western areas of the Gulf of Mexico off the coasts of Louisiana and Texas. Marine Petroleum Trust was founded in 1956 and is based in Dallas, Texas.