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Regulatory Matters
9 Months Ended
Sep. 30, 2017
Regulated Operations [Abstract]  
Regulatory Matters

Note 7. Regulatory Matters

As a public utility, Questar Gas is subject to the jurisdiction of the Utah Commission and the Wyoming Commission. Natural gas sales and transportation services are provided under rate schedules approved by the two regulatory commissions.

In September 2017, Questar Gas submitted a filing with the Utah Commission for a $5.9 million non-gas cost increase reflecting forecasted increases in infrastructure replacement costs. The Utah Commission approved the filing in September 2017 with rates effective October 2017.

In October 2017, Questar Gas submitted filings with both the Utah and Wyoming Commissions for a combined $25.8 million gas cost increase reflecting forecasted increases in commodity and transportation costs.  The Utah and Wyoming Commissions both approved the filings in October 2017 with rates effective November 2017.