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Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2015
Business Acquisition Pro Forma Financial Information | The following unaudited pro forma financial information (in thousands) presents a summary of the Partnership’s consolidated revenues, net income and net income per common unit for the twelve months ended December 31, 2014 and 2013 assuming the VantaCore and Sanish Field acquisitions had been completed as of January 1, 2013, including adjustments to reflect the values assigned to the net assets acquired:
| For the Years ended December 31,
| 2014 |  | 2013
Total revenues and other income | $ | 533,517 |  |  | $ | 579,933 |
Net income | $ | 122,319 |  |  | $ | 197,164 |
Basic and diluted net income per common unit | $ | 9.90 |  |  | $ | 16.00 |
VantaCore Partners LP |
Schedule of Adjustments to the Estimated Fair Value | The accounting for the VantaCore acquisition is summarized as follows (in thousands):
| October 1, 2014
Consideration |
Cash | $ | 168,978 |
NRP common units | 31,604 |
Total consideration given | $ | 200,582 |
Allocation of Purchase Price |
Current assets | $ | 37,222 |
Land, property and equipment | 59,946 |
Mineral rights | 111,500 |
Other assets | 4,347 |
Current liabilities | (16,953 | )
Asset retirement obligation | (1,005 | )
Goodwill | 5,525 |
Fair value of net assets acquired | $ | 200,582 |
Sanish Field [Member] |
Schedule of Adjustments to the Estimated Fair Value | The accounting for the Sanish Field acquisition was completed in the second quarter of 2015 without significant changes during the measurement period and is summarized as follows (in thousands):
| November 12, 2014
Consideration |
Cash | $ | 339,093 |
Allocation of Purchase Price |
Mineral rights - proven oil and gas properties | 298,293 |
Mineral rights - probable and possible oil and gas resources | 40,800 |
Fair value of net assets acquired | $ | 339,093 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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