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L. SUPPLEMENTARY FINANCIAL INFORMATION ON OIL AND NATURAL GAS EXPLORATION (Tables) | 12 Months Ended
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Dec. 31, 2017
Extractive Industries [Abstract] |
Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities |
|  | 2017 |
|  | Gas (MMCF) |  |  | Oil (MBBLS) |
Proved developed and undeveloped reserves - January 1,2017 |  |  | 3,219 |  |  |  | 149 |
Purchase of oil and natural gas properties in place |  |  | 0 |  |  |  | 0 |
Discoveries and exclusions |  |  | 0 |  |  |  | 0 |
Revisions |  |  | (2,211 | ) |  |  | (75 | )
Sales of oil and gas properties in place |  |  | 0 |  |  |  | 0 |
Production |  |  | (178 | ) |  |  | (5 | )
Proved developed and undeveloped reserves - December 31,2017 |  |  | 830 |  |  |  | 69 |
Probable reserves |  |  | 1,025 |  |  |  |  |
Possible reserves |  |  | 342 |  |  |  |  |
Total reserves - December 31, 2017 |  |  | 2,197 |  |  |  | 69 |
Proved developed at beginning of year |  |  | 1,051 |  |  |  | 81 |
Proved developed reserves at end of year |  |  | 830 |  |  |  | 69 |
|  | 2016 |
|  | Gas (MMCF) |  |  | Oil (MBBLS) |
Proved developed and undeveloped reserves - |  |  |  |  |  |  |  |
January 1, 2016 |  |  | 2,604 |  |  |  | 58 |
Purchase of oil and natural gas properties in place |  |  | 0 |  |  |  | 0 |
Discoveries and exclusions |  |  | 0 |  |  |  | 0 |
Revisions |  |  | 746 |  |  |  | 95 |
Sales of oil and gas properties in place |  |  | 0 |  |  |  | 0 |
Production |  |  | (155 | ) |  |  | (4 | )
Total reserves - December 31, 2017 |  |  | 3,195 |  |  |  | 149 |
Proved developed at beginning of year |  |  | 504 |  |  |  | 59 |
Proved developed reserves at end of year |  |  | 1,051 |  |  |  | 81 |
Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities Disclosure |
|  | 2017 |  |  | 2016 |
Oil and gas sales |  | $ | 791 |  |  | $ | 764 |
Operating expenses |  |  | (707 | ) |  |  | (687 | )
Depreciation, depletion and amortization |  |  | (320 | ) |  |  | (494 | )
Impairment of oil & gas properties |  |  | (2,626 | ) |  |  | – |
Results of operations |  | $ | (2,862 | ) |  | $ | (417 | )
Schedule of Changes in Standardized Measure of Discounted Future Net Cash Flows |
|  | 2017 |  |  | 2016 |
Future oil and gas cash inflows |  | $ | 10,653 |  |  | $ | 19,368 |
Future oil & gas operating expenses |  |  | (3,425 | ) |  |  | (4,605 | )
Future development costs |  |  | (1,480 | ) |  |  | (2,982 | )
Future tax expense |  |  | (724 | ) |  |  | (1,308 | )
Future net cash flows |  | $ | 5,024 |  |  | $ | 10,473 |
10% discount to reflect timing of cash flows |  |  | (2,303 | ) |  |  | (4,150 | )
|  | $ | 2,721 |  |  | $ | 6,323 |

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- Definition Tabular disclosure of the aggregate of costs (whether the costs are capitalized or charged to expense at the time they are incurred ) incurred for the year in oil and gas property acquisition, exploration and development activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 55 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63042-109448 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62038-109447 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62014-109447 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- Definition Tabular disclosure of the aggregate change in the standardized measure of discounted future net cash flows relating to proved oil and gas reserves and oil and gas subject to purchases under long-term agreements in which the enterprise participates in the operation of the properties on which oil and gas is located or otherwise serves as the producer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62500-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 36 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62536-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62496-109447 + Details
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- Definition Tabular disclosure of the net quantities of an enterprise's interests in proved developed and undeveloped reserves of (a) crude oil (including condensate and natural gas liquids), (b) natural gas (including coal bed methane), (c) synthetic oil, (d) synthetic gas, and (e) other nonrenewable natural resources that are intended to be upgraded during the period as of the beginning of the period, changes in quantities during the period, and as of the end of 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 6 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61858-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61884-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61797-109447 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61869-109447 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447 + Details
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