Utilities are paying more for natural gas, which means many Colorado customers will see higher bills starting Oct. 1. The Colorado Public Utilities Commission approved fuel rate adjustments Wednesday for Xcel Energy-Colorado and Atmos Energy Corp. Regulations allow the utilities to pass through higher fuel costs to customers. Although Xcel Energy customers will see monthly increases in the single digits, they could end up paying nearly 54% more in December than they did in December 2021, according to a notice sent by the company. The PUC’s action on the companies’ fuel-cost adjustment is separate from pending decisions on proposed increases...