EX-21 8 0008.txt LIST OF SIGNIFICANT SUBSIDIARIES Exhibit 21. List of Significant Subsidiaries The following subsidiaries were 100 percent owned, either directly or indirectly, and were consolidated by the Corporation at December 31, 2000: State or jurisdiction Name of Subsidiary in which incorporated Marathon Canada Limited Canada Marathon International Oil Company Delaware Marathon International Petroleum Ireland Limited Cayman Islands Marathon Oil Company Ohio Marathon Oil U.K., Ltd. Delaware Marathon Petroleum Gabon LDC Cayman Islands Marathon Petroleum Investment, Ltd. Delaware Marathon Sakhalin Limited Cayman Islands U. S. Steel Kosice s.r.o. Slovak Republic U. S. Steel Mining Company, LLC Delaware USX Portfolio Delaware, Inc. Delaware The following subsidiaries were 62 percent owned, directly or indirectly, by Marathon Oil Company and were consolidated by the Corporation at December 31, 2000: Marathon Ashland Petroleum LLC Delaware Speedway SuperAmerica LLC Delaware Names of particular subsidiaries have been omitted from the above list since, considered in the aggregate, they would not constitute a significant subsidiary at December 31, 2000.