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**Exhibit      21**

|  Name                of Subsidiary               | State                or Countryof                Incorporation | PercentOwned |
|-------------------------------------------------------|----------------------------------------------------------------|--------------|
| Javelina                Holdings Corporation          | Delaware                                                       | 100%         |
| Kerr-McGee                China Petroleum, Ltd.       | Bahama                Islands                                  | 100%         |
| Kerr-McGee                Corporation                 | Delaware                                                  | 100%         |
| Kerr-McGee                Energy Services Corporation | Delaware                                                       | 100%         |
| Kerr-McGee                L.P. Corporation            | Delaware                                                       | 100%         |
| Kerr-McGee                (Nevada) LLC                | Nevada                                                         | 100%         |
| Kerr-McGee                Oil & Gas Corporation   | Delaware                                                       | 100%         |
| Kerr-McGee                Oil & Gas Onshore LP    | Delaware                                                       | 100%         |
| Kerr-McGee                Rocky Mountain Corporation  | Delaware                                                       | 100%         |
| Kerr-McGee                Shared Services Company LLC | Delaware                                                       | 100%         |
| Kerr-McGee                U.K. Energy Corporation     | Delaware                                                       | 100%         |
| Kerr-McGee                Worldwide Corporation       | Delaware                                                       | 100%         |
| KM                Denmark Overseas ApS                | Denmark                                                        | 100%         |
| KM                Global Ltd.                         | Delaware                                                       | 100%         |
| KM                Investment Corporation              | Nevada                                                         | 100%         |
| Tronox                Holdings, Inc.                  | Delaware                                                       | 56.7%        |
| Tronox                Incorporated                    | Delaware                                                       | 56.7%        |
| Tronox                LLC                             | Delaware                                                  | 56.7%        |
| Tronox                Luxembourg S.a.r.l.             | Luxembourg                                                     | 56.7%        |
| Tronox                Pigments (Savannah), Inc.       | Georgia                                                        | 56.7%        |
| Tronox                Pigments GmbH                   | Germany                                                        | 56.7%        |
| Tronox                Pigments International GmbH     | Switzerland                                                    | 56.7%        |
| Tronox                (Switzerland) Holding GmbH      | Switzerland                                                    | 56.7%        |
| Tronox                Western Australia Pty. Ltd      | Western                Australia                               | 56.7%        |
| Tronox                Worldwide LLC                   | Delaware                                                  | 56.7%        |
| Westport                Oil and Gas Company, L.P.     | Delaware                                                       | 100%         |