Significant Financing Transactions

3 Months Ended

Mar. 31, 2017

Short-term Debt, Other Disclosures [Abstract]

Questar Gas uses short-term debt to fund working capital requirements and as a bridge to long-term debt financings. The levels of borrowing may vary significantly during the course of the year, depending upon the timing and amount of cash requirements not satisfied by cash from operations.

Questar Gas’ short-term financing is supported by the two joint revolving credit facilities with Dominion, Virginia Power and Dominion Gas. These credit facilities can be used for working capital, as support for the combined commercial paper programs of Dominion, Virginia Power, Dominion Gas and Questar Gas and for other general corporate purposes.

At March 31, 2017, Questar Gas' commercial paper and letters of credit outstanding under its joint credit facilities with Dominion, Virginia Power and Dominion Gas, were as follows:



	Facility Limit⁽¹⁾		Outstanding Commercial Paper		Outstanding Letters of Credit
(millions)
Joint revolving credit facility⁽¹⁾	$	500.0	$	147.0	$	—
Joint revolving credit facility⁽¹⁾	500.0		—		—
Total	$	1,000.0	$	147.0	$	—

(1)

A maximum of a combined $1.0 billion of the facilities is available to Questar Gas, assuming adequate capacity is available after giving effect to uses by co-borrowers Dominion, Virginia Power and Dominion Gas. Sub-limits for Questar Gas are set within the facility limit but can be changed at the option of the borrowers multiple times per year. At March 31, 2017, the sub-limit for Questar Gas was an aggregate $250 million. If Questar Gas has liquidity needs in excess of its sub-limit, the sub-limit may be changed or such needs may be satisfied through short-term intercompany borrowings from Dominion. The maturity date for these facilities is April 2020. These credit facilities can be used to support bank borrowings and the issuance of commercial paper, as well as to support up to $1.0 billion (or the sub-limit, whichever is less) of letters of credit.