Exhibit 99.1 Public Service Company of New Mexico And Subsidiaries Comparative Operating Statistics Month Ended Nine Months Ended September 30, September 30, ------------------ ----------------- 2000 1999 2000 1999 ------ ------ ------ ------ Electric Service: Energy Sales - MWh (in thousands) Retail 615 606 5,355 5,160 Wholesale Firm Sales 15 14 145 134 Firm Surplus 128 76 962 723 Short Term / Uncommitted 954 1,102 8,496 7,391 ------ ------ ------ ------ Total Wholesale Sales 1,097 1,192 9,603 8,248 ------ ------ ------ ------ Total Energy Sales 1,712 1,798 14,958 13,408 ====== ====== ====== ====== Weather: Heating and Cooling Days - Albuquerque, NM The heating degree day value (HDD) is the accumulation in degrees that the daily mean temperature was below 65 F. The cooling degree day value (CDD) is the accumulation in degrees that the daily mean temperature was above 65 F. HDD 16 23 2,070 2,221 ====== ====== ====== ====== CDD 244 22 1,679 1,106 ====== ====== ====== ======