0000899243-99-002377 Sample Contracts

EXHIBIT 4.1 FRONTIER OIL CORPORATION 11 3/4% SENIOR NOTES DUE 2009, SERIES A AND SERIES B

Frontier Oil Corp /New/ • November 19th, 1999 • Petroleum refining • New York

• Company
  Frontier Oil Corp /New/
• Filed
  November 19th, 1999
• Industry
  Petroleum refining
• Jurisdiction
  New York

190,000,000 11 3/4% SENIOR NOTES DUE 2009

Underwriting Agreement • November 19th, 1999 • Frontier Oil Corp /New/ • Petroleum refining • New York

• Contract Type
  Underwriting Agreement
• Filed
  November 19th, 1999
• Company
  Frontier Oil Corp /New/
• Industry
  Petroleum refining
• Jurisdiction
  New York