Supplemental Information on Oil and Natural Gas Properties (unaudited) (Tables)
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12 Months Ended |
Dec. 31, 2015 |
Supplemental Information on Oil and Natural Gas Properties [Abstract] |
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Capitalized Costs Relating to Oil and Natural Gas Activities |
The following table discloses certain financial data relating to the Company’s oil and natural gas activities, all of which are located in the United States.
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For the Year Ended December 31,
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2015
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2014
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2013
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Evaluated Properties
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Beginning of period balance
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$
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2,077,985
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$
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1,701,577
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$
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1,497,010
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Capitalized G&A
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10,529
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10,071
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10,014
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Property acquisition costs (a)
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26,726
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94,541
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10,885
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Exploration costs
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81,320
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118,251
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147,164
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Development costs
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138,663
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153,545
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36,504
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End of period balance
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$
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2,335,223
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$
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2,077,985
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$
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1,701,577
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Unevaluated Properties
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Beginning of period balance
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$
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142,525
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$
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43,222
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$
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68,776
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Property acquisition costs (a)
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5,520
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128,342
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2,259
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Exploration costs
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4,576
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11,177
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10,767
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Capitalized interest
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10,459
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4,295
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4,410
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Transfers to evaluated
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(30,899)
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(44,511)
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(42,990)
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End of period balance
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$
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132,181
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$
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142,525
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$
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43,222
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Accumulated depreciation, depletion and amortization
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Beginning of period balance
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$
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1,478,355
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$
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1,420,612
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$
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1,296,265
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Provision charged to expense
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69,228
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56,663
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42,251
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Write-down of oil and natural gas properties
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208,435
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—
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—
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Sale of mineral interests
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—
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1,080
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82,096
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End of period balance
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$
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1,756,018
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$
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1,478,355
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$
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1,420,612
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For more information on acquisitions refer to Note 3
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Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities |
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For the Year Ended December 31,
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Proved developed and undeveloped reserves:
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2015
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2014
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2013
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Oil (MBbls):
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Beginning of period
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25,733
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11,898
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10,780
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Revisions to previous estimates
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(1,632)
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(243)
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(2,540)
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Purchase of reserves in place
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2,932
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3,223
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150
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Sale of reserves in place
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(23)
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—
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(3,294)
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Extensions and discoveries
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19,127
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12,547
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7,713
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Production
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(2,789)
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(1,692)
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(911)
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End of period
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43,348
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25,733
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11,898
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Natural Gas (MMcf):
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Beginning of period
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42,548
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17,751
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19,753
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Revisions to previous estimates
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4,870
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(215)
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(5,351)
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Purchase of reserves in place
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2,915
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8,591
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317
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Sale of reserves in place
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(105)
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—
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(4,576)
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Extensions and discoveries
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19,621
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18,641
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10,619
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Production
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(4,312)
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(2,220)
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(3,011)
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End of period
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65,537
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42,548
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17,751
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For the Year Ended December 31,
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Proved developed reserves:
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2015
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2014
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2013
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Oil (MBbls):
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Beginning of period
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14,006
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5,960
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4,955
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End of period
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22,257
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14,006
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5,960
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Natural gas (MMcf):
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Beginning of period
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25,171
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9,059
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10,680
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End of period
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38,157
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25,171
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9,059
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MBOE:
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Beginning of period
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18,201
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7,470
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6,735
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End of period
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28,617
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18,201
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7,470
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Proved undeveloped reserves:
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Oil (MBbls):
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Beginning of period
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11,727
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5,938
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5,825
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End of period
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21,091
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11,727
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5,938
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Natural gas (MMcf):
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Beginning of period
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17,377
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8,692
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9,073
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End of period
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27,380
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17,377
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8,692
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MBOE:
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Beginning of period
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14,623
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7,387
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7,337
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End of period
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25,654
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14,623
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7,387
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Oil and Gas Net Production, Average Sales Price and Average Production Costs Disclosure |
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2015
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2014
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2013
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Average 12-month price, net of differentials, per Mcf of natural gas
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$
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2.73
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$
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6.38
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$
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5.45
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Average 12-month price, net of differentials, per barrel of oil
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$
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47.25
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$
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86.30
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$
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92.16
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Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves Disclosure |
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Standardized Measure
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For the Year Ended December 31,
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2015
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2014
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2013
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Future cash inflows
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$
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2,227,463
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$
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2,492,178
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$
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1,193,299
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Future costs
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Production
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(827,555)
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(873,469)
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(357,005)
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Development and net abandonment
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(239,100)
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(288,081)
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(155,667)
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Future net inflows before income taxes
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1,160,808
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1,330,628
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680,627
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Future income taxes
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—
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(164,490)
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(68,239)
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Future net cash flows
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1,160,808
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1,166,138
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612,388
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10% discount factor
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(589,918)
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(586,596)
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(328,442)
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Standardized measure of discounted future net cash flows
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$
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570,890
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$
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579,542
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$
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283,946
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Changes in Standardized Measure
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For the Year Ended December 31,
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2015
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2014
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2013
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Standardized measure at the beginning of the period
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$
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579,542
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$
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283,946
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$
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231,148
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Sales and transfers, net of production costs
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(110,476)
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(120,518)
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(78,661)
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Net change in sales and transfer prices, net of production costs
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(286,660)
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(156,066)
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(46,088)
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Net change due to purchases and sales of in place reserves
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37,616
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111,331
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(145,711)
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Extensions, discoveries, and improved recovery, net of future production and development costs incurred
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184,469
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299,192
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212,431
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Changes in future development cost
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108,216
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186,605
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153,983
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Revisions of quantity estimates
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(12,625)
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(7,673)
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(68,958)
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Accretion of discount
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62,968
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30,114
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25,010
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Net change in income taxes
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35,407
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(32,940)
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1,751
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Changes in production rates, timing and other
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(27,567)
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(14,449)
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(959)
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Aggregate change
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(8,652)
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295,596
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52,798
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Standardized measure at the end of period
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$
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570,890
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$
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579,542
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$
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283,946
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