Texas Utilities Code - UTIL § 102.205. Entering Premises of Gas Utility

(a) A member, agent, or employee of a regulatory authority may enter the premises occupied by a gas utility to conduct an inspection, examination, or test or to exercise any other authority provided by this subtitle.

(b) A member, agent, or employee of the regulatory authority may act under this section only during reasonable hours and after reasonable notice to the gas utility.

(c) A gas utility is entitled to be represented when an inspection, examination, or test is conducted on its premises.  The gas utility is entitled to a reasonable time to secure a representative before the inspection, examination, or test begins.