XML 67 R52.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Oil and Gas Reserve Data (Unaudited) (Details Narrative) | 12 Months Ended
--- | ---
Mar. 31, 2018 USD ($) Wells $ / shares MBbls | Mar. 31, 2017 USD ($) $ / shares
Barrels of oil equivalent | MBbls | 2,111,000 |
Percentage of estimated proved reserves of oil and natural gas liquids | 57.00% |
Percentage of estimated proved reserves of natural gas | 43.00% |
Estimated proved oil and gas reserves rate | 49.00% |
Description on PUD's oil and gas reserves | At March 31, 2018, the Company reported estimated PUDs of 1,037 MBOE, which accounted for 49% of its total estimated proved oil and gas reserves. This figure primarily consists of a projected 102 new wells (937 MBOE), 4 of which the Company operates with reserves of 205 MBOE, which will be drilled on existing acreage in the Goldsmith field where the Company currently operates 3 wells. The Company projects these 4 operated wells will be drilled in fiscal 2019. Regarding the remaining 98 PUD locations operated by others (732 MBOE), 7 wells are currently being drilled with plans for 38 wells to follow in 2019, 33 wells in 2020 and 24 wells in 2021. |
Future cash flows estimated to be spent to develop our share of proved undeveloped properties through March 31, 2022 | $ | $ 12,009,000 | $ 28,809,000
Estimated future cash flows discounted rate | 10.00% |
Average prices used, per bbl | $ / shares | $ 50.63 | $ 43.88
Average prices used, per mcf | $ / shares | $ 3.031 | $ 2.561
Current Plans [Member] |  |
Number of operated drilled wells | 7 |
Fiscal 2019 [Member] |  |
Number of operated drilled wells | 4 |
2019 [Member] |  |
Number of drilled wells | 38 |
2020 [Member] |  |
Number of drilled wells | 33 |
2021 [Member] |  |
Number of drilled wells | 24 |
Goldsmith Field [Member] |  |
Number of operated drilled wells | 3 |
102 New Wells [Member] |  |
Number of drilled wells | 102 |
Number of operated drilled wells | 4 |

X
- Definition Average prices used, per bbl. + References No definition available. + Details
Name: | MXC_AveragePriceUsedPerBbl
Namespace Prefix: | MXC_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average prices used, per mcf. + References No definition available. + Details
Name: | MXC_AveragePricesUsedPerMcf
Namespace Prefix: | MXC_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description on PUD's oil and gas reserves. + References No definition available. + Details
Name: | MXC_DescriptionOnPUDsOilAndGasReserves
Namespace Prefix: | MXC_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated future net cash flows discounted rate. + References No definition available. + Details
Name: | MXC_EstimatedFutureNetCashFlowsDiscountedRate
Namespace Prefix: | MXC_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Estimated proved oil and gas reserves rate. + References No definition available. + Details
Name: | MXC_EstimatedProvedOilAndGasReservesRate
Namespace Prefix: | MXC_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of estimated proved reserves of natural gas. + References No definition available. + Details
Name: | MXC_PercentageOfEstimatedProvedReservesOfNaturalGas
Namespace Prefix: | MXC_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of estimated proved reserves of oil and natural gas liquids. + References No definition available. + Details
Name: | MXC_PercentageOfEstimatedProvedReservesOfOilAndNaturalGasLiquids
Namespace Prefix: | MXC_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 55 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63094-109448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 31 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62455-109447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447 + Details
Name: | srt_FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61797-109447 + Details
Name: | srt_ProvedDevelopedReservesVolume
Namespace Prefix: | srt_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of nonproductive development wells (dry wells) drilled in the geographic area. A dry well (hole) is a well found to be incapable of producing either oil or gas in sufficient quantities to justify completion as an oil or gas well. The number of wells drilled refers to the number of wells (holes) completed at any time during the fiscal years, regardless when drilling was initiated. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1205 -Paragraph (a) -Subparagraph (2) + Details
Name: | us-gaap_DevelopmentWellsDrilledNetNonproductive
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of productive exploratory wells drilled in the geographic area. A productive well is a well that is not a dry well. The number of wells drilled refers to the number of wells (holes) completed at any time during the fiscal years, regardless when drilling was initiated. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1205 -Paragraph (a) -Subparagraph (1) + Details
Name: | us-gaap_ExploratoryWellsDrilledNetProductive
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=MXC_CurrentPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=MXC_FiscalTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=MXC_TwoThousandsAndNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=MXC_TwoThousandsAndTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=MXC_TwoThousandsAndTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=MXC_GoldsmithFieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis=MXC_HundredAndTwoNewWellsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |