oil | Standard Oil | Gulf Oil | Deepwater Horizon oil spill | Shell Oil Company | Midnight Oil | Ashland | 1973 oil crisis | oil refinery | Ashland, Oregon | oil painting | Ashland, Kentucky | Oil platform | Castor oil plant | Oil Campaign of World War II | oil platform | North Sea oil | Ashland, Virginia | Anglo-Persian Oil Company | Prestige oil spill | Oil-for-Food Programme | Oil | Indian Oil Corporation | vegetable oil | Nippon Oil | Vacuum Oil Company | South Cuyama Oil Field | Russell Ranch Oil Field | Oil well | oil well |
He also has business interests in the following companies: General Dynamics, Westinghouse, Ashland Oil, Neurogen, CB Commercial Real Estate, Nortel, BDM International, Quaker Oats, and Kaman.