Tex. Natural Resources Code § 51.242: PATENT FEES.

When a person applies for a patent, he shall pay to the land office in addition to all other required payments a fee set by the commissioner in an amount not less than $1 for each county in which all or a part of the land is located and shall give the name and address of the owner or agent.

Acts 1977, 65th Leg., p. 2435, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977. Amended by Acts 1983, 68th Leg., p. 404, ch. 81, Sec. 21(h), eff. Sept. 1, 1983.