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IDENTIFIABLE INTANGIBLE ASSETS, NONCURRENT LIABILITY AND GOODWILL (Tables)
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12 Months Ended |
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Dec. 31, 2013
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| Goodwill and Intangible Assets Disclosure [Abstract] |
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| Schedule of identifiable intangible assets and a noncurrent liability, which are subject to amortization |
Identifiable intangible assets and the noncurrent liability, which are subject to amortization, were as follows: | | | | | | | | | | | | | | | | December 31, 2013 | | Useful lives (In years) | | Gross carrying amount | | Accumulated amortization | | Net | | (Dollars in thousands) | Favorable gas gathering contracts | 18.7 | | $ | 24,195 |
| | $ | (6,315 | ) | | $ | 17,880 |
| Contract intangibles | 12.5 | | 426,464 |
| | (43,158 | ) | | 383,306 |
| Rights-of-way | 28.3 | | 56,487 |
| | (4,679 | ) | | 51,808 |
| Total amortizable intangible assets | | | $ | 507,146 |
| | $ | (54,152 | ) | | $ | 452,994 |
| | | | | | | | | Unfavorable gas gathering contract | 10.0 | | $ | 10,962 |
| | $ | (4,588 | ) | | $ | 6,374 |
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| | | | | | | | | | | | | | | | December 31, 2012 | | Useful lives (In years) | | Gross carrying amount | | Accumulated amortization | | Net | | (Dollars in thousands) | Favorable gas gathering contracts | 18.7 | | $ | 24,195 |
| | $ | (4,237 | ) | | $ | 19,958 |
| Contract intangibles | 12.4 | | 244,100 |
| | (14,504 | ) | | 229,596 |
| Rights-of-way | 28.3 | | 38,848 |
| | (2,862 | ) | | 35,986 |
| Total amortizable intangible assets | | | $ | 307,143 |
| | $ | (21,603 | ) | | $ | 285,540 |
| | | | | | | | | Unfavorable gas gathering contract | 10.0 | | $ | 10,962 |
| | $ | (3,542 | ) | | $ | 7,420 |
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| Schedule of recognized amortization expense within the statements of operations |
We recognized amortization expense as follows: | | | | | | | | | | | | | | Year ended December 31, | | 2013 | | 2012 | | 2011 | | (In thousands) | Amortization expense – favorable gas gathering contracts | $ | 2,078 |
| | $ | 1,715 |
| | $ | 1,718 |
| Amortization expense – contract intangibles | 28,654 |
| | 12,642 |
| | 1,862 |
| Amortization expense – rights-of-way | 1,817 |
| | 1,321 |
| | 908 |
| Amortization expense – unfavorable gas gathering contract | (1,046 | ) | | (1,524 | ) | | (1,410 | ) |
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| Schedule of estimated aggregate amortization of intangible assets and the noncurrent liability for each of the five succeeding fiscal years |
The estimated aggregate annual amortization of intangible assets and noncurrent liability expected to be recognized as of December 31, 2013 for each of the five succeeding fiscal years follows. | | | | | | | | | | Assets | | Liabilities | | (In thousands) | 2014 | $ | 37,893 |
| | $ | 1,549 |
| 2015 | 40,912 |
| | 1,650 |
| 2016 | 41,167 |
| | 1,571 |
| 2017 | 39,903 |
| | 1,604 |
| 2018 | 39,448 |
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| Schedule of Goodwill |
A rollforward of the consolidated balance of goodwill follows (in thousands). | | | | | Goodwill, December 31, 2012 and 2011 | $ | 45,478 |
| Goodwill recognized in connection with the Bison Drop Down | 54,199 |
| Goodwill preliminarily recognized in connection with the Mountaineer Acquisition | 18,089 |
| Goodwill adjustment recognized in connection with finalizing accounting for the Mountaineer Acquisition and other | (1,878 | ) | Goodwill, December 31, 2013 | $ | 115,888 |
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