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Disclosures About Capitalized Costs, Costs Incurred (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2016
Extractive Industries [Abstract] |
Oil And Gas Property Successful Effort Method | Capitalized costs related to oil and gas activities are as follows (in thousands):
| December 31,
| 2016 |  | 2015
Company: |  |  |
Unproved properties | $ | — |  |  | $ | — |
Proved properties | 1,122 |  |  | 1,122 |
| 1,122 |  |  | 1,122 |
Accumulated depreciation and depletion | (930 | ) |  | (862 | )
Total | $ | 192 |  |  | $ | 260 |
Company’s share of Laramie Energy: |  |  |
Unproved properties | $ | 14,416 |  |  | $ | 9,253 |
Proved properties | 334,085 |  |  | 202,195 |
| 348,501 |  |  | 211,448 |
Accumulated depreciation and depletion | (91,454 | ) |  | (56,241 | )
Total | $ | 257,047 |  |  | $ | 155,207 |
Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities Disclosure | Costs incurred in oil and gas activities including costs associated with assets retirement obligations, are as follows (in thousands):
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
Company: |  |  |  |  |
Development costs—other | $ | — |  |  | $ | — |  |  | $ | 102 |
Total | $ | — |  |  | $ | — |  |  | $ | 102 |
Company’s share of Laramie Energy: |  |  |  |  |
Acquisition costs | $ | 65,324 |  |  | $ | — |  |  | $ | — |
Development costs—other | 12,805 |  |  | 21,747 |  |  | 15,599 |
Total | $ | 78,129 |  |  | $ | 21,747 |  |  | $ | 15,599 |
Capitalized Exploratory Well Costs, Roll Forward | A summary of the results of operations for oil and gas producing activities, excluding general and administrative costs, is as follows (in thousands):
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
Company: |  |  |  |  |
Revenue |  |  |  |  |
Oil and gas revenues | $ | 190 |  |  | $ | 2,019 |  |  | $ | 5,984 |
Expenses |  |  |  |  |  |  |  |
Production costs | 147 |  |  | 5,283 |  |  | 5,673 |
Depletion and amortization | 69 |  |  | 42 |  |  | 2,376 |
Exploration | — |  |  | — |  |  | — |
Abandoned and impaired properties | — |  |  | — |  |  | — |
Results of operations of oil and gas producing activities | $ | (26 | ) |  | $ | (3,306 | ) |  | $ | (2,065 | )
Company’s share of Laramie Energy: |  |  |  |  |
Revenue |  |  |  |  |
Oil and gas revenues | $ | 43,607 |  |  | $ | 14,217 |  |  | $ | 26,829 |
Expenses |  |  |  |  |
Production costs | 27,750 |  |  | 11,047 |  |  | 11,225 |
Impairment of unproved properties | — |  |  | 3,977 |  |  | — |
Depletion and amortization | 17,534 |  |  | 8,226 |  |  | 10,921 |
Results of operations of oil and gas producing activities | $ | (1,677 | ) |  | $ | (9,033 | ) |  | $ | 4,683 |
Total results of operations of oil and gas producing activities | $ | (1,703 | ) |  | $ | (12,339 | ) |  | $ | 2,618 |

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- Definition Tabular disclosure of the change in capitalized exploratory costs during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51678428&loc=SL6806780-109447 + Details
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