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ACQUISITION AND DISPOSITIONS - ACQUISITIONS, MIDSTREAM (Details) CAD in Millions, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Feb. 27, 2015 USD ($) | Feb. 27, 2015 CAD | Dec. 31, 2016 USD ($) | Dec. 31, 2016 CAD | Dec. 31, 2015 CAD | Dec. 31, 2014 CAD | Feb. 27, 2015 CAD
Purchase price: |  |  |  |  |  |  |
Cash |  |  |  | CAD 644 | CAD 106 | CAD 394 |
Midstream Business |  |  |  |  |  |  |
ACQUISITIONS |  |  |  |  |  |  |
Revenues since date of acquisition |  |  |  |  | 2 |  |
Earnings before interest and income taxes since date of acquisition |  |  |  |  | CAD 0 |  |
Fair value of net assets acquired: |  |  |  |  |  |  |
Property, plant and equipment |  |  |  |  |  |  | CAD 69
Intangible assets |  |  |  |  |  |  | 40
Net assets acquired |  |  |  |  |  |  | 109
Purchase price: |  |  |  |  |  |  |
Cash | $ 85 | CAD 106 |  |  |  |  |
Contingent consideration |  | CAD 3 |  |  |  |  |
Contingent future payment |  |  |  |  |  |  |
Maximum contingent future payment | $ 17 |  |  |  |  |  | 21
Contingent future payment earnout period | 5 years | 5 years |  |  |  |  |
Fair value of contingent consideration | $ 2 |  |  |  |  |  | CAD 3
Midstream Business | Operating and administrative expense |  |  |  |  |  |  |
Contingent future payment |  |  |  |  |  |  |
Reversal of contingent consideration liability |  |  | $ 3 | CAD 4 |  |  |

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