XML 61 R35.htm IDEA: XBRL DOCUMENT v3.23.2

Summary of Significant Events and Accounting Policies - Concentrations of Credit Risk (Details) - Net revenue - Major Customers - item	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Crude oil, natural gas and natural gas liquids
Concentrations of Credit Risk
Number of operators		3
Percent of total revenue	83.00%	83.00%
Crude oil, natural gas and natural gas liquids | Barnett [Member]
Concentrations of Credit Risk
Percent of total revenue	26.00%
Crude oil, natural gas and natural gas liquids | Denbury [Member]
Concentrations of Credit Risk
Percent of total revenue	22.00%
Natural gas liquids | Conoco Phillips [Member]
Concentrations of Credit Risk
Percent of total revenue	17.00%

X

- Definition

For an entity that discloses a concentration risk for threshold percentage.

+ References

No definition available.

+ Details

Name:	epm_ConcentrationRiskThresholdPercentage
Namespace Prefix:	epm_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of operators.

+ References

No definition available.

+ Details

Name:	epm_NumberOfOperators
Namespace Prefix:	epm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=epm_CrudeOilNaturalGasAndNaturalGasLiquidsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=epm_BarnettMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=epm_DenburyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=srt_NaturalGasLiquidsReservesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=epm_ConocoPhillipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: