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Supplemental Disclosure of Oil and Natural Gas Operations (Unaudited) - Schedule of Standardized Measure of Discounted Future Net Cash Flows (Parentheticals) (Details) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Schedule of Standardized Measure of Discounted Future Net Cash Flows [Abstract] |  |
Annual discount | 10.00% | 10.00%

X
- Definition Annual discount for estimated timing of cash flows. + References No definition available. + Details
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Namespace Prefix: | eonr_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | srt_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration