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| | |
| | | |
| | Name of Subsidiary | Jurisdiction of Organization/Incorporation |
| | Blanchard Holdings Company LLC | Delaware |
| | Blanchard Pipe Line Company LLC | Delaware |
| | Blanchard Refining Company LLC | Delaware |
| | Blanchard Terminal Company LLC | Delaware |
| | Bonded Oil Company | Delaware |
| | Buckeye Assurance Corporation | Vermont |
| | Catlettsburg Refining, LLC | Delaware |
| * | Centennial Pipeline LLC | Delaware |
| * | Explorer Pipeline Company | Delaware |
| * | Gravcap, Inc. | Delaware |
| * | Green Bay Terminal Corporation | Wisconsin |
| * | Guilford County Terminal Company, LLC | North Carolina |
| | Hardin Assurance Ltd. | Bermuda |
| | Hardin Street Holdings LLC | Delaware |
| * | Johnston County Terminal, LLC | Delaware |
| * | LOCAP LLC | Delaware |
| * | LOOP LLC | Delaware |
| | Mannheim Terminal and Warehousing Service Company | Illinois |
| | Marathon Canada Marketing, Ltd. | Delaware |
| | Marathon Carbon Management LLC | Delaware |
| | Marathon Petroleum Company Canada, Ltd. | Alberta |
| | Marathon Petroleum Company LP | Delaware |
| | Marathon Petroleum Logistics Services LLC | Delaware |
| | Marathon Petroleum Service Company | Delaware |
| | Marathon Petroleum Supply LLC | Delaware |
| | Marathon Petroleum Trading Canada LLC | Delaware |
| | Marathon Pipe Line Company | Nevada |
| * | Marathon Pipe Line LLC | Delaware |
| | Marathon PrePaid Card LLC | Ohio |
| | Marathon Renewable Fuels Corp. | Delaware |
| | Marathon Renewable Fuels LLC | Delaware |
| | Marathon Renewable Supply LLC | Delaware |
| * | Mascoma Corporation | Delaware |
| | MPC Investment Fund, Inc. | Delaware |
| | MPC Investment LLC | Delaware |
| | MPC LOOP Holdings LLC | Delaware |
| | MPC Trade Receivables Company LLC | Delaware |
| | MPL Investment LLC | Delaware |
| | MPL Louisiana Holdings LLC | Delaware |
| | MPLX GP LLC | Delaware |
| | MPLX Logistics Holdings LLC | Delaware |
| * | MPLX LP | Delaware |
| * | MPLX Operations LLC | Delaware |
| * | MPLX Pipe Line Holdings LP | Delaware |
| * | MPLX Terminal and Storage LLC | Delaware |
| * | Muskegon Pipeline LLC | Delaware |
