Tex. Utilities Code § 121.152: INITIATION OF REGULATORY PROCEEDING.

The railroad commission shall exercise power under Section 121.151:

(1) on:

(A) its own motion;

(B) the petition of a person or county commissioner's precinct showing a substantial interest in the subject;

(C) the petition of the attorney general; or

(D) the petition of a district or county attorney of a county in which any portion of a business subject to this chapter is conducted; and

(2) after notice has been given.

Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.