Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v2.4.1.9
Commitments and Contingencies (Details)
 3 Months Ended 0 Months Ended
Mar. 31, 2015
USD ($)
Mar. 31, 2015
GBP (£)
Dec. 31, 2014
USD ($)
Jun. 30, 2014
USD ($)
Sep. 30, 2011
Sep. 30, 2011
Nautilus Purchase and Sale Agreement (PSA)
USD ($)
Jan. 14, 2013
Sopak Collateral Agreement
Common Stock
Jan. 14, 2013
Sopak Collateral Agreement
Warrant
Mar. 31, 2015
MI3
USD ($)
Purchase Commitment, Excluding Long-term Commitment [Line Items]                  
Future contingent production payments payable           $ 5,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= mpet_NautilusPurchaseAndSaleAgreementPsaMember 		     
Number of shares available for purchase             9,264,637us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= mpet_SopakCollateralAgreementMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		4,347,826us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= mpet_SopakCollateralAgreementMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember 		 
Cash call, amount     2,000,000mpet_PrepaymentsandCallsPayableOtherInvestment            
Outstanding cash calls 2,284,000mpet_OutstandingPrepaymentsandCallsPayableOtherInvestment 1,540,000mpet_OutstandingPrepaymentsandCallsPayableOtherInvestment              
Percent of interest in contingent payments         52.00%mpet_BusinessAcquisitionContingentConsiderationPotentialCashPaymentInterestPercentage        
Accrued income taxes 1,650,000us-gaap_AccruedIncomeTaxesCurrent     1,571,000us-gaap_AccruedIncomeTaxesCurrent          
Contingent bonuses payable                 $ 255,000mpet_ContingentBonusesPayable
/ us-gaap_CounterpartyNameAxis
= mpet_MI3PetroleumEngineeringMember