Tex. Nat. Res. Code § 52.100

The provisions of this subchapter do not repeal or supersede Chapter 138, Acts of the 41st Legislature, Regular Session, 1929 (Article 5414a, Vernon's Texas Civil Statutes), which validated, relinquished, quitclaimed, and granted to patentees and awardees and their assignees land and minerals that are included in surveys lying across or partly across watercourses and navigable streams in the state and that have been patented or awarded as provided in that chapter.