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Commitments and Contingencies (Details 2) |  |  | 6 Months Ended | 1 Months Ended | 39 Months Ended |  | 1 Months Ended | 25 Months Ended |  | 1 Months Ended | 6 Months Ended | 2 Months Ended | 6 Months Ended | 14 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 USD ($) | Dec. 31, 2013 USD ($) | Jun. 30, 2014 Minimum | Apr. 30, 2011 Rainbow Pipeline Release bbl | Jun. 30, 2014 Rainbow Pipeline Release USD ($) | Feb. 26, 2013 Rainbow Pipeline Release enforcementaction | Jul. 31, 2014 Rainbow Pipeline Release Subsequent Event CAD | Jun. 30, 2012 Rangeland Pipeline Release bbl | Jun. 30, 2014 Rangeland Pipeline Release USD ($) | Jul. 04, 2013 Rangeland Pipeline Release enforcementaction | Jul. 31, 2014 Rangeland Pipeline Release Subsequent Event CAD | Feb. 28, 2013 Bay Springs Pipeline Release bbl | Jun. 30, 2014 Bay Springs Pipeline Release USD ($) | Jun. 30, 2013 Kemp River Pipeline Release event bbl | Jun. 30, 2014 Kemp River Pipeline Release USD ($) | Jun. 30, 2014 Kemp River Pipeline Release USD ($)
Environmental |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated undiscounted reserve for environmental liabilities | $ 92,000,000 | $ 93,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated undiscounted reserve for environmental liabilities, short-term | 13,000,000 | 11,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated undiscounted reserve for environmental liabilities, long-term | 79,000,000 | 82,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable recoveries from insurers and from third parties under indemnification agreements recorded as a receivable | 8,000,000 | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actual cash expenditures for environmental liabilities, period paid |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |
Total estimated cost to clean up and remediate the site, before insurance recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |
Total cost to clean up and remediate the site, before insurance recoveries |  |  |  |  | 70,000,000 |  |  |  | 47,000,000 |  |  |  | 6,000,000 |  |  |
Cost incurred, to date, to clean up and remediate the site, before insurance recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,000,000
Estimated size of release (in barrels) |  |  |  | 28,000 |  |  |  | 3,000 |  |  |  | 120 |  | 700 |  |
Settlement charges paid |  |  |  |  |  |  | 450,000 |  |  |  | 850,000 |  |  |  |  |
Charges, fines or penalties assessed |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0
Number of enforcement actions |  |  |  |  |  | 4 |  |  |  | 4 |  |  |  |  |  |
Number of events occurred |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |

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