150,000,000 QUESTAR GAS COMPANY (a Utah corporation) $50,000,000 6.30% Notes due 2018 $100,000,000 7.20% Notes due 2038 PURCHASE AGREEMENTPurchase Agreement • March 26th, 2008 • Questar Gas Co • Natural gas distribution • New York
Questar Gas Company, a Utah corporation (the “Company”), confirms its agreement with Barclays Capital Inc. and J.P. Morgan Securities Inc. Inc. and each of the other Underwriters named in Schedule A hereto (collectively, the “Underwriters,” which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Barclays Capital Inc. and J.P. Morgan Securities Inc. are acting as representatives (in such capacity, the “Representatives”), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of the respective principal amounts set forth in Schedule A of $50,000,000 aggregate principal amount of the Company’s 6.30% Notes due 2018 (the “Notes due 2018”) and $100,000,000 aggregate principal amount of the Company’s 7.20% Notes due 2038) (the “Notes due 2038”) (collectively, the “Securities”). The Securities are to be issued pursuant to an indenture dated as of May 1, 1992 (the “Indent
