Amend the S. Turner amendment to CSSB 310 in Section 102.0015, Utilities Code, as added by the amendment, by inserting new Subsections (d)-(f) and renumbering existing Subsections of the amendment accordingly: (d) Not later than October 1, 2001, the railroad commission shall hold a hearing as required by Subsection (c). At the hearing, the railroad commission shall consider: (1) the effect that customer choice under Chapter 39 has had on a gas utility described by Subsection (b); (2) whether an affiliated electric utility has received excess mitigation under Chapter 39; and (3) whether a gas utility has directly benefitted from that excess mitigation, if any. (e) The railroad commission shall determine that an affiliated electric utility has received excess mitigation under Chapter 39 if the Public Utility Commission of Texas has made such a finding. The railroad commission shall determine that the affiliated gas utility has directly benefitted from that excess mitigation if the railroad commission determines that the affiliated electric utility has not returned to residential customers at least 50 percent of the excess mitigation identified by the Public Utility Commission of Texas and allocable to those residential customers. (f) If the railroad commission determines that the affiliated gas utility has directly benefitted from the excess mitigation, the railroad commission shall order the affiliated gas utility to apply an amount equal to 50 percent of the excess mitigation allocable to residential customers as a credit to the gas utility's residential customers throughout the service region who are also residential customers of its affiliated electric utility. The railroad commission shall order the gas utility to apply the credit to residential customer bills not later than December 31, 2001.