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Supplemental Disclosures about Oil and Natural Gas Producing Properties (unaudited) - Narrative (Details) |  | 12 Months Ended
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Jun. 24, 2016 USD ($) | Jun. 30, 2016 USD ($) Boe Mcf bbl | Jun. 30, 2015 USD ($) Boe Mcf bbl | Jun. 30, 2014 USD ($) Boe Mcf bbl
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Oil and natural gas property costs attributable to the recognition of asset retirement obligations | $ |  | $ 140,151 |  | $ 576,039 |  | $ 66,976 |
Fair value of litigation settlement | $ |  | $ 596,500 |  | $ 0 |  | $ 0 |
Period Considered for Unweighted Arithmetic Average for Determining Reserve Volumes and Values |  | 12 months |  |  |  |  |
Positive revision of previous estimate (in BOE) | Boe |  | (964,171) | [1] | (390,330) | [2] | (247,350) | [3]
Period Considered for Determining Unweighted Arithmetic Average of First Day of Month, Commodity Prices |  | 12 months |  |  |  |  |
Crude Oil |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) |  | (765,385) | [1] | (64,074) | [2] | (1,919,052) | [3]
Natural Gas Liquids |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) |  | (198,233) | [1] | 156,195 | [2] | 1,269,588 | [3]
Revision due to improved design (in Bbls/Mcf) |  |  |  | 185,499 |  |  |
Natural Gas |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) | Mcf |  | (3,319) | [1] | (2,894,703) | [2] | 2,412,677 | [3]
Delhi Field |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Positive revision of previous estimate (in BOE) | Boe |  |  |  |  |  | 1,679,481 |
Delhi Field | Crude Oil |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) |  |  |  |  |  | 1,817,224 |
Delhi Field | Natural Gas Liquids |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision due to improved design (in Bbls/Mcf) |  |  |  |  |  | 1,275,178 |
Delhi Field | Natural Gas |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) | Mcf |  |  |  | (2,246,524) |  |  |
Revision due to improved design (in Bbls/Mcf) | Mcf |  |  |  |  |  | 2,425,821 |
Giddings Field | Natural Gas Liquids |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) |  |  |  | (29,304) |  |  |
Giddings Field | Natural Gas |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Revision increase(decrease) of previous estimates (in Bbls/Mcf) | Mcf |  |  |  | (452,786) |  |  |
Dehli Field Litigation | Denbury Resources, Inc |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Working interest in Mengal Sand Interval | 23.90% |  |  |  |  |  |
Fair value of litigation settlement | $ | $ 596,500 |  |  |  |  |  |
[1] | The negative revision results primarily from the removal of proved undeveloped reserves in the far eastern part of the Delhi field, referred to as Test Site 6, which were deemed uneconomic under the lower SEC price case utilized at the end of the period.
[2] | The 2,894,703 negative fiscal 2015 revision for natural gas primarily reflects a 2,246,524 MCF negative revision for the Delhi field NGL plant together with a 452,786 MCF negative revision at the Giddings Field for a well that was lost due to mechanical issues. The NGL plant revision resulted from a decision during the current fiscal year to use the methane production internally to reduce field operating costs rather than selling it into the market. The 156,195 BBL positive natural gas liquids revision primarily reflects 185,499 BBL positive revision for better recovery from the redesigned NGL plant, partly offset by a 29,304 BBL negative revision due to the lost Giddings well.
[3] | Significant reserve revisions occurred in the Delhi field during fiscal 2014. As a result of a fluid release event in the field, 1,817,224 BBLs of oil reserves were reclassified from proved to probable category based on the operator's decision to defer CO2 injections in certain parts of the field. There was a positive revision of 1,679,481 BOE, which was comprised of 1,275,178 BBLs of natural gas liquids and 2,425,821 MCF of natural gas as a result of an improved design for the NGL plant in the Delhi field. The plant was expected to significantly increase recoveries of these products, particularly natural gas, which were not previously planned to be extracted from the injection volumes.

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