Texas Utilities Code - UTIL § 40.052. Utility Not Offering Customer Choice

(a) A municipally owned utility that has not chosen to participate in customer choice may not offer electric energy at unregulated prices directly to retail customers outside its certificated retail service area.

(b) A municipally owned utility under Subsection (a) retains the right to offer and provide a full range of customer service and pricing programs to the customers within its certificated area and to purchase and sell electric energy at wholesale without geographic restriction.