2.3.0.15 Html 8 52 1 false 0 0 false 3 true false R1.htm 00090 - Document - Document And Entity Information Sheet http://www.mewbourneenergypartners04alp.com/role/DocumentDocumentAndEntityInformation Document And Entity Information false false R2.htm 00100 - Statement - Condensed Balance Sheets Sheet http://www.mewbourneenergypartners04alp.com/role/StatementCondensedBalanceSheets Condensed Balance Sheets false false R3.htm 00200 - Statement - Condensed Statements Of Operations Sheet http://www.mewbourneenergypartners04alp.com/role/StatementCondensedStatementsOfOperations Condensed Statements Of Operations false false R4.htm 00205 - Statement - Condensed Statements Of Operations (Parenthetical) Sheet http://www.mewbourneenergypartners04alp.com/role/StatementCondensedStatementsOfOperationsParenthetical Condensed Statements Of Operations (Parenthetical) false false R5.htm 00300 - Statement - Condensed Statements Of Cash Flows Sheet http://www.mewbourneenergypartners04alp.com/role/StatementCondensedStatementsOfCashFlows Condensed Statements Of Cash Flows false false R6.htm 00400 - Statement - Condensed Statement Of Changes In Partners' Capital Sheet http://www.mewbourneenergypartners04alp.com/role/StatementCondensedStatementOfChangesInPartnersCapital Condensed Statement Of Changes In Partners' Capital false false R7.htm 10101 - Disclosure - Description Of Business Sheet http://www.mewbourneenergypartners04alp.com/role/DisclosureDescriptionOfBusiness Description Of Business false false R8.htm 10201 - Disclosure - Summary Of Significant Accounting Policies Sheet http://www.mewbourneenergypartners04alp.com/role/DisclosureSummaryOfSignificantAccountingPolicies Summary Of Significant Accounting Policies false false R9.htm 10301 - Disclosure - Accounting For Oil And Gas Producing Activities Sheet http://www.mewbourneenergypartners04alp.com/role/DisclosureAccountingForOilAndGasProducingActivities Accounting For Oil And Gas Producing Activities false false R10.htm 10401 - Disclosure - Asset Retirement Obligations Sheet http://www.mewbourneenergypartners04alp.com/role/DisclosureAssetRetirementObligations Asset Retirement Obligations false false R11.htm 10501 - Disclosure - Related Party Transactions Sheet http://www.mewbourneenergypartners04alp.com/role/DisclosureRelatedPartyTransactions Related Party Transactions false false All Reports Book All Reports Process Flow-Through: 00100 - Statement - Condensed Balance Sheets Process Flow-Through: Removing column 'Sep. 30, 2010' Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: 00200 - Statement - Condensed Statements Of Operations Process Flow-Through: 00205 - Statement - Condensed Statements Of Operations (Parenthetical) Process Flow-Through: 00300 - Statement - Condensed Statements Of Cash Flows Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2010' Process Flow-Through: 00400 - Statement - Condensed Statement Of Changes In Partners' Capital Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2010' Process Flow-Through: Removing column '9 Months Ended Sep. 30, 2010' cik0001282400-20110930.xml cik0001282400-20110930.xsd cik0001282400-20110930_cal.xml cik0001282400-20110930_lab.xml cik0001282400-20110930_pre.xml true true