SOUTHWEST GAS CORPORATION $250,000,000 3.875% Senior Notes due 2022 UNDERWRITING AGREEMENTUnderwriting Agreement • March 23rd, 2012 • Southwest Gas Corp • Natural gas transmisison & distribution • New York
Southwest Gas Corporation, a California corporation (the “Company”), proposes to issue and sell to the several underwriters (the “Underwriters”) named in Schedule 1 attached to this agreement (this “Agreement”) acting severally and not jointly, the respective amounts set forth in such Schedule 1 of $250,000,000 aggregate principal amount of its 3.875% Senior Notes due 2022 (the “Securities”). The Securities will be issued pursuant to an Indenture to be dated as of March 23, 2012 (the “Indenture”) between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee (the “Trustee”). This is to confirm the agreement concerning the purchase of the Securities from the Company by the Underwriters.
SOUTHWEST GAS CORPORATION AND THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee INDENTURE Dated as of March 23, 2012 3.875% Senior Notes due 2022Indenture • March 23rd, 2012 • Southwest Gas Corp • Natural gas transmisison & distribution • New York
