The ratings on Questar Gas Co. reflect the company's affiliation with higher-risk Questar Corp. (Questar) and Questar Market Resources (QMR) and a strong stand-alone business risk profile. Questar Gas is the regulated gas distribution subsidiary of Questar. Questar is a natural gas-focused energy holding company that acquires, explores for, develops, produces, gathers, processes, and markets oil, gas, and hydrocarbon liquids through its subsidiary, Questar Market Resources Inc. (QMR). Questar also owns Questar Pipeline Co., which conducts interstate gas transportation and storage activities. Questar Gas distributes natural gas in Utah, southwest Wyoming and a portion of southeast Idaho, and serves about 851,000 customers. Customer growth has been strong in the low 3% range. In 2006, the Public Service Commission of Utah
