Receivables (Details) (USD $)
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Dec. 31, 2014
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Jun. 30, 2014
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Nov. 01, 2014
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Related Party Transaction [Line Items] | |||
Receivables from oil and gas sales | $ 2,198,912us-gaap_AccountsReceivableNetCurrent | $ 1,456,146us-gaap_AccountsReceivableNetCurrent | |
Receivable from suspended overriding royalty interest | 712,100epm_OilAndGasPropertiesOverridingRoyaltyInterestReceivableSuspendedNetCurrent | 0epm_OilAndGasPropertiesOverridingRoyaltyInterestReceivableSuspendedNetCurrent | |
Other | 13,558us-gaap_OtherReceivablesNetCurrent | 1,066us-gaap_OtherReceivablesNetCurrent | |
Receivables | $ 2,924,570us-gaap_ReceivablesNetCurrent | $ 1,457,212us-gaap_ReceivablesNetCurrent | |
Denbury Resources, Inc | |||
Related Party Transaction [Line Items] | |||
Suspended payments related to overriding royalty interest, percentage | 2.89155%epm_RelatedPartyTransactionsPercentageofOverridingRoyaltyInterestwithSuspendedPayments / us-gaap_CounterpartyNameAxis = epm_DenburyResourcesIncMember |
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Usual percentage of overriding royalty interest payment | 7.4052%epm_RelatedPartyTransactionsPaymentPercentageofOverridingRoyaltyInterest / us-gaap_CounterpartyNameAxis = epm_DenburyResourcesIncMember |
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- Definition
Oil And Gas Properties,Overriding Royalty Interest Receivable Suspended, Net, Current No definition available.
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- Definition
Related Party Transactions, Payment Percentage of Overriding Royalty Interest No definition available.
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- Definition
Related Party Transactions, Percentage of Overriding Royalty Interest with Suspended Payments No definition available.
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying amount of other receivables, net, due within one year of the balance sheet date (or one operating cycle, if longer) from third parties or arising from transactions not separately disclosed. No definition available.
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- Definition
The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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