Investor Presentaiton

59 Southwestern Public Service Company (SPS) SPS is an Xcel Energy operating company that conducts business in Texas and New Mexico. In both states, the company generates, purchases, transmits, distributes and sells electricity. Generally, SPS' contribution to earnings ranges from 15% to 20% of Xcel Energy's consolidated earnings. Customers Electricity 0.4 million DALHART SANTA FE 25 ALBUQUERQUE TUCUMCARI BORGER HEREFORD AMARILLO 27 CLOVIS PLAINVIEW LUBBOCK ROSWELL LEVELLAND 25 HOBBS CARLSBAD 35 DALLAS AUSTIN 35 SAN ANTONIO

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