XML 110 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8

Joint Interest Agreement (Tables)

12 Months Ended

Jun. 30, 2013

Joint Interest Agreement

Schedule of amounts pertaining to participation in joint venture

		June 30, 2013			June 30, 2012
Advances to joint interest operating partner		$	26,059		$	1,366,921
Due to joint interest partner			127,081			3,217,975

X

- Details

Name:	epm_JointInterestDrillingArrangementDisclosureAbstract
Namespace Prefix:	epm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of amounts pertaining to participation in joint venture.

+ References

No definition available.

+ Details

Name:	epm_ScheduleOfJointVenturesActivityTableTextBlock
Namespace Prefix:	epm_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration