AMENDED AND RESTATED REVOLVING CREDIT AND LETTER OF CREDIT AGREEMENT This Agreement, dated as of June 30, 1997, is entered into by (1) FRONTIER OIL AND REFINING COMPANY, a Delaware corporation (the "Borrower"), (2) the banks listed on the signature...Revolving Credit and Letter of Credit Agreement • July 29th, 1997 • Wainoco Oil Corp • Petroleum refining • California
