Credit Risk	9 Months Ended
Sep. 30, 2017
Risks And Uncertainties [Abstract]
Credit Risk	Note 11. Credit Risk Questar Gas' accounting policies for credit risk are discussed in Note 17 to the Financial Statements in Questar Gas' Annual Report on Form 10-K for the year ended December 31, 2016. Questar Gas maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends and other information. Management believes, based on credit policies and the September 30, 2017 provision for credit losses, that it is unlikely that a material adverse effect on financial position, results of operations or cash flows would occur as a result of counterparty nonperformance.

Credit Risk

9 Months Ended

Sep. 30, 2017

Note 11. Credit Risk

Questar Gas' accounting policies for credit risk are discussed in Note 17 to the Financial Statements in Questar Gas' Annual Report on Form 10-K for the year ended December 31, 2016.

Questar Gas maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends and other information. Management believes, based on credit policies and the September 30, 2017 provision for credit losses, that it is unlikely that a material adverse effect on financial position, results of operations or cash flows would occur as a result of counterparty nonperformance.