tw pnr billing - november 2001 attached is the detail for november 2001 pnr . a summary of the activity is as follows : buyer po # poi bom bal dekatherm rate / dth invoice amount calpine energy 27507 78151 0 22 , 500 $ 0 . 3883 $ 43 , 683 . 75 richardson 27249 500622 0 10 , 000 $ 0 . 0300 $ 600 . 00 total 32 , 500 $ 44 , 283 . 75 in addition , pnm cleared up an imbalance position discovered on an old pnr contract . pnm took re - delivery of the gas on november 29 th . there were no charges applied to the pnm activity .