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.