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v3.22.2.2

Revenue Recognition (Details) | 3 Months Ended
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Sep. 30, 2022
Minimum |
Revenue Recognition |
Period of receives payment from the sale of oil and natural gas production | 1 month
Number of production received by field operators | 1 month
Maximum |
Revenue Recognition |
Period of receives payment from the sale of oil and natural gas production | 2 months
Number of production received by field operators | 2 months

X
- Definition Represents the Period of production received by field operators + References No definition available. + Details
Name: | epm_PeriodOfProductionReceivedByFieldOperators
Namespace Prefix: | epm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of receives payment from the sale of oil and natural gas production. + References No definition available. + Details
Name: | epm_PeriodOfReceivesPaymentFromSaleOfOilAndNaturalGasProductions
Namespace Prefix: | epm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |