Exhibit 10.20 AMENDMENT dated as of April 16, 2001 to the Credit Agreement dated as of December 12, 1997, as amended and restated as of November 17, 1998, as amended as of January 20, 1999 and as of August 11, 2000 (the "Credit Agreement"), among...Credit Agreement • May 8th, 2001 • McMoran Exploration Co /De/ • Crude petroleum & natural gas • New York
