Tex. Natural Resources Code § 81.017: ADDITIONAL EMPLOYEES.

The commission may employ gaugers, inspectors, investigators, supervisors, and clerical employees. These employees shall include a chief engineer, chief petroleum engineer, and an administrative chief, and their salaries shall be paid in the amounts provided in the General Appropriations Act.

Acts 1977, 65th Leg., p. 2509, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977. Amended by Acts 1981, 67th Leg., p. 144, ch. 65, Sec. 1, eff. Sept. 1, 1981.