v3.3.1.900

Oil and Gas Producing Activities | 12 Months Ended
--- | ---
Dec. 31, 2015
Extractive Industries [Abstract] |
Oil and Gas Producing Activities |
9. | Oil and Gas Producing Activities
Set forth below is certain information regarding the costs incurred for oil and gas property acquisition, development and exploration activities (in thousands):
|  | For the Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Property acquisition costs: |  |  |  |  |  |  |  |  |  |  |  |
Unproved properties |  | $ | 653 |  |  | $ | 4,578 |  |  | $ | 5,857 |
Proved properties |  |  | — |  |  |  | — |  |  |  | 1,000 |
Exploration costs |  |  | 4,439 |  |  |  | 3,831 |  |  |  | 2,238 |
Development costs (1) |  |  | 146,237 |  |  |  | 382,995 |  |  |  | 287,898 |
Total costs incurred |  | $ | 151,329 |  |  | $ | 391,404 |  |  | $ | 296,993 |
(1) | For the years ended December 31, 2015, 2014 and 2013, development costs include $151,000, $898,000 and $584,000, respectively, in non-cash asset retirement obligations.
Set forth below is certain information regarding the results of operations for oil and gas producing activities (in thousands):
|  | For the Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Revenues |  | $ | 131,336 |  |  | $ | 258,529 |  |  | $ | 181,302 |
Production costs |  |  | (40,057 | ) |  |  | (48,635 | ) |  |  | (31,992 | )
Exploration expense |  |  | (4,439 | ) |  |  | (3,831 | ) |  |  | (2,238 | )
Depletion |  |  | (109,319 | ) |  |  | (106,802 | ) |  |  | (76,956 | )
Impairment of oil and gas properties |  |  | (220,197 | ) |  |  | — |  |  |  | — |
Income tax benefit (expense) |  |  | 86,120 |  |  |  | (35,387 | ) |  |  | (24,996 | )
Results of operations |  | $ | (156,556 | ) |  | $ | 63,874 |  |  | $ | 45,120 |

X
- References No definition available. + Details
Name: | us-gaap_ExtractiveIndustriesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for oil and gas producing industries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61555-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61526-109447 + Details
Name: | us-gaap_OilAndGasExplorationAndProductionIndustriesDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration