SUBSEQUENT EVENTS	12 Months Ended
Dec. 31, 2015
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	The Company has evaluated subsequent events through March 29, 2016, the date these financial statements were available to be issued. The Company is not aware of any subsequent events which would require recognition or disclosure in the financial statements, except as noted below or already recognized or disclosed. Agreement and Plan of Merger and Reorganization On February 10, 2016, YEI and privately held Davis Petroleum Acquisition Corp. (“Davis”) entered into a definitive merger agreement for an all-stock transaction. Upon completion of the transaction, YEI will reincorporate in Delaware, implement a one for ten reverse split of its common stock, and convert each share of its existing Series A Preferred Stock into 35 shares of common stock prior to giving effect for the reverse split (3.5 shares post reverse split). Following these actions, YEI will issue additional shares of common stock in an amount sufficient to result in approximately 61.1% of the common stock being owned by the current common stockholders of Davis. In addition, YEI will issue approximately 3.3 million shares of a new Series D preferred stock to existing Davis preferred stockholders, which is estimated to have a conversion price of approximately $5.70 per share, after giving effect for the reverse split. The Series D preferred stock is estimated to have a liquidation preference of approximately $18.7 million at closing, and will be paid dividends in the form of additional Series D preferred stock at a rate of 7% per annum. Upon closing, there will be an aggregate of approximately 23.7 million shares of common stock outstanding (after giving effect to the reverse stock split and conversion of Series A Preferred Stock to common stock). The transaction is expected to qualify as a tax-deferred reorganization under Section 368(a) of the Code. The merger agreement is subject to the approval of the shareholders of both companies, as well as other customary approvals, including authorization to list the newly issued shares on the NYSE MKT. The parties anticipate completing the transaction in mid-2016. Greater Masters Creek Field Area During the first quarter of 2016, the Company shut-in 14 Austin Chalk wells in Beauregard, Rapides and Vernon Parishes, Louisiana due to low oil and natural gas prices. If production is not restarted from these wells, the associated leases will expire, reducing the Company’s proved reserves by approximately 1,629 MBoe, acreage by 22,021 gross (18,140 net) acres, operated proved undeveloped locations by three, and operated non-proved undeveloped locations by seven. During the first quarter of 2016, the Company received notice from the operator of certain wells in Rapides and Vernon Parishes, Louisiana, that certain wells in which the Company has an interest were shut-in due to current economic conditions. The operator plans to sell their interest. If the operator does not restart production from these wells or if a subsequent operator does not restart production from these wells, the associated leases will expire, which would reduce the Company’s proved reserves by approximately 285 MBoe, acreage by 18,895 gross (3,737 net) acres, non-operated proved undeveloped locations by three, and non-operated non-proved undeveloped locations by 18. The Company is currently negotiating with a certain mineral owner to amend the oil and gas lease agreement to extend the expiration date of certain acreage that is not held by production as of March 29, 2016. The total acreage is approximately 25,139 acres which will expire July 1, 2016 unless the Company initiates drilling of a development well on the pooled lands or pays a deferred development payment by July 1, 2016. If the leased acreage expires, the Company’s proved reserves would be reduced by approximately 5,096 MBoe, the number of operated proved undeveloped locations and operated non-proved locations would be reduced by 13 and 16, respectively. Texas Southeastern Gas Marketing Company As of January 1, 2016, the Company decided to discontinue the operations of Texas Southeastern Gas Marketing Company due to the limited volumes of natural gas that it marketed, as well as the costs associated with accounting for the entity.

SUBSEQUENT EVENTS

12 Months Ended

Dec. 31, 2015

The Company has evaluated subsequent events through March 29, 2016, the date these financial statements were available to be issued. The Company is not aware of any subsequent events which would require recognition or disclosure in the financial statements, except as noted below or already recognized or disclosed.

Agreement and Plan of Merger and Reorganization

On February 10, 2016, YEI and privately held Davis Petroleum Acquisition Corp. (“Davis”) entered into a definitive merger agreement for an all-stock transaction. Upon completion of the transaction, YEI will reincorporate in Delaware, implement a one for ten reverse split of its common stock, and convert each share of its existing Series A Preferred Stock into 35 shares of common stock prior to giving effect for the reverse split (3.5 shares post reverse split). Following these actions, YEI will issue additional shares of common stock in an amount sufficient to result in approximately 61.1% of the common stock being owned by the current common stockholders of Davis. In addition, YEI will issue approximately 3.3 million shares of a new Series D preferred stock to existing Davis preferred stockholders, which is estimated to have a conversion price of approximately $5.70 per share, after giving effect for the reverse split. The Series D preferred stock is estimated to have a liquidation preference of approximately $18.7 million at closing, and will be paid dividends in the form of additional Series D preferred stock at a rate of 7% per annum. Upon closing, there will be an aggregate of approximately 23.7 million shares of common stock outstanding (after giving effect to the reverse stock split and conversion of Series A Preferred Stock to common stock). The transaction is expected to qualify as a tax-deferred reorganization under Section 368(a) of the Code.

The merger agreement is subject to the approval of the shareholders of both companies, as well as other customary approvals, including authorization to list the newly issued shares on the NYSE MKT. The parties anticipate completing the transaction in mid-2016.

Greater Masters Creek Field Area

During the first quarter of 2016, the Company shut-in 14 Austin Chalk wells in Beauregard, Rapides and Vernon Parishes, Louisiana due to low oil and natural gas prices. If production is not restarted from these wells, the associated leases will expire, reducing the Company’s proved reserves by approximately 1,629 MBoe, acreage by 22,021 gross (18,140 net) acres, operated proved undeveloped locations by three, and operated non-proved undeveloped locations by seven.

During the first quarter of 2016, the Company received notice from the operator of certain wells in Rapides and Vernon Parishes, Louisiana, that certain wells in which the Company has an interest were shut-in due to current economic conditions. The operator plans to sell their interest. If the operator does not restart production from these wells or if a subsequent operator does not restart production from these wells, the associated leases will expire, which would reduce the Company’s proved reserves by approximately 285 MBoe, acreage by 18,895 gross (3,737 net) acres, non-operated proved undeveloped locations by three, and non-operated non-proved undeveloped locations by 18.

The Company is currently negotiating with a certain mineral owner to amend the oil and gas lease agreement to extend the expiration date of certain acreage that is not held by production as of March 29, 2016. The total acreage is approximately 25,139 acres which will expire July 1, 2016 unless the Company initiates drilling of a development well on the pooled lands or pays a deferred development payment by July 1, 2016. If the leased acreage expires, the Company’s proved reserves would be reduced by approximately 5,096 MBoe, the number of operated proved undeveloped locations and operated non-proved locations would be reduced by 13 and 16, respectively.

Texas Southeastern Gas Marketing Company

As of January 1, 2016, the Company decided to discontinue the operations of Texas Southeastern Gas Marketing Company due to the limited volumes of natural gas that it marketed, as well as the costs associated with accounting for the entity.