TXNM Energy is an energy holding company based in Albuquerque, New Mexico. TXNM was founded in 1917 as the Albuquerque Gas and Electric Company. TXNM Energy owns both PNM and Texas - New Mexico Power Headquartered in Albuquerque, TXNM Energy has a diverse energy portfolio and combined with their purchased power resources contribute to a total generation capacity of approximately 2.7 gigawatts and serves electricity to 800,000 residential and business customers across New Mexico and Texas. Wikipedia