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Environmental Liabilities and Expenditures (Tables) | 9 Months Ended
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Sep. 30, 2016
Environmental Liabilities and Expenditures |
Environmental remediation reserves by categories of sites |
|  | Number of Sites |  | Reserve Balance (in millions) |
NPL sites |  | 35 |  | $ | 68 |
Third-party sites |  | 69 |  | 126 |
Occidental-operated sites |  | 17 |  | 100 |
Closed or non-operated Occidental sites |  | 29 |  | 126 |
Total |  | 150 |  | $ | 420 |

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