AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT among FRONTIER OIL AND REFINING COMPANY, as Borrower and FRONTIER OIL CORPORATION and THE LENDERS NAMED HEREIN and UNION BANK OF CALIFORNIA, N.A., as Administrative Agent, Documentation Agent and Lead...Revolving Credit Agreement • May 29th, 2003 • Frontier Oil Corp /New/ • Petroleum refining • California
