(a) The issuing financing entity may deposit proceeds of customer rate relief bonds issued by the issuing financing entity under this subchapter with a trustee selected by the issuing financing entity or the proceeds may be held by the comptroller in a dedicated trust fund outside the state treasury in the custody of the comptroller.
(b) Bond proceeds, net of the financing costs and reserves described by Subdivisions (2) and (3), including investment income, must be held in trust for the exclusive benefit of the railroad commission’s policy of reimbursing gas utility costs and applied in accordance with the financing order. The issuing financing entity shall deliver the net proceeds, as provided in the applicable financing order, to:
(1) reimburse each gas utility the regulatory asset amount determined to be reasonable for that gas utility in the financing order;
(2) pay the financing costs of issuing the bonds; and
(3) provide bond reserves or fund any capitalized interest, as applicable.

(c) On full payment of the customer rate relief bonds and any related financing costs, any customer rate relief charges or other amounts held as security for the bonds shall be used to provide credits to gas utility customers as provided in the financing order.