PNM Resources is an energy holding company based in New Mexico, in the United States. The acronym "PNM" by itself usually refers to the PNM Resources subsidiary Public Service Company of New Mexico. Headquartered in Albuquerque, PNM Resources has approximately 2,530 megawatts of generation capacity and serves electricity to 498,000 homes and businesses in northern and central New Mexico and parts of West Texas. Primary holdings Public Service Company of New Mexico (PNM) Public Service Company of New Mexico is a corporation that is wholly owned by PNM Resources. Headquartered in Albuquerque, it provides electricity to more than 500,000 residential and business customers in Greater Albuquerque, Rio Rancho, Los Lunas and Belen, Santa Fe, Las Vegas, Alamogordo, Ruidoso, Silver City, Deming, Bayard, Lordsburg and Clayton, as well as the tribal communities of the Tesuque, Cochiti, Santo Domingo, San Felipe, Santa Ana, Sandia, Isleta and Laguna Pueblos. Elsewhere, rural electric cooperatives provide much of the power. PNM maintains approximately , of electric transmission lines, and 7,594 electric distribution lines. PNM is a significant owner of the San Juan generation facility, a coal-fired plant located near Farmington, New Mexico, and a 10% owner in the Palo Verde Nuclear Generating Facility near Phoenix, AZ. PNM also owns and operates several natural gas-fired plants throughout the state of New Mexico including Reeves Generating Station in Albuquerque, most of which are used to meet additional demand for electricity in the summer months. PNM employs approximately 2,000 people and has been noted as one of the top companies in the United States for minorities to work for. Texas—New Mexico Power Company Texas—New Mexico Power is a corporation that is wholly owned by PNM Resources. It is a regulated electric utility operating in Texas. TNP was sold in a leveraged buyout in 2000. PNM acquired Texas—New Mexico Power in 2005 and moved the New Mexico properties to PNM in 2006. TNP is headquartered in Lewisville, Texas. Corporate organization and history PNM was founded in 1917 as the Albuquerque Gas and Electric Company. PNM sold the gas part of the business to Southern Union Gas Company of Dallas in 1949. These sold portions became the Gas Company of New Mexico. In 1985, however, PNM reacquired the Gas Company of New Mexico after Southern Union Gas Company reached a settlement stemming from federal anti-trust litigation. In 1994, both electric and gas operations began serving customers as PNM. In May