Tex. Nat. Res. Code § 81.055
(b) If the legislature finds that adoption of such a requirement is desirable, the commission by rule may require an owner, operator, or manager of a pipeline system to obtain evidence of financial responsibility. The rules must specify the appropriate form and amount of that evidence and may require evidence of financial responsibility in different amounts for different pipeline systems, taking into consideration whether the pipeline system:
Added by Acts 2001, 77th Leg., ch. 1233, Sec. 6, eff. Sept. 1, 2001.
Acts 2011, 82nd Leg., R.S., Ch. 1083 (S.B. 1179), Sec. 25(132), eff. June 17, 2011.