Tex. Utilities Code § 104.368

The interest of an issuing financing entity or pledgee in customer rate relief property, including the revenue and collections arising from customer rate relief charges, is not subject to setoff, counterclaim, surcharge, or defense by the gas utility or any other person or in connection with the bankruptcy of the gas utility, the authority, or any other entity. A financing order remains in effect and unabated notwithstanding the bankruptcy of the gas utility, the authority, an issuing financing entity, or any successor or assignee of the gas utility, authority, or issuing financing entity.