$MTDR
Matador Resources Co Stock $mtdr

$mtdr Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000152000614000017 Filed on March 17, 2014

Income Statement

Concept	2012 Q4	2012	2011 Q4
Revenue	$51.90M	$165.2M	$21.50M
YoY Change	141.4%	108.41%	152.94%
Cost Of Revenue	$14.70M	$39.90M	$3.100M
YoY Change	374.19%	195.56%	40.91%
Gross Profit	$37.20M	$125.3M	$18.40M
YoY Change	102.17%	90.72%	192.06%
Gross Profit Margin	71.68%	75.87%	85.58%
Selling, General & Admin	$3.200M	$14.50M	$4.000M
YoY Change	-20.0%	8.21%	37.93%
% of Gross Profit	8.6%	11.57%	21.74%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$27.70M	$80.45M	$9.200M
YoY Change	201.09%	153.37%	95.74%
% of Gross Profit	74.46%	64.21%	50.0%
Operating Expenses	$31.00M	$95.20M	$13.20M
YoY Change	134.85%	109.69%	71.43%
Operating Profit	$6.200M	-$33.43M	$5.200M
YoY Change	19.23%	118.37%	-471.43%
Interest Expense	-$500.0K	$1.002M	-$200.0K
YoY Change	150.0%	46.71%
% of Operating Profit	-8.06%		-3.85%
Other Income/Expense, Net	$100.0K	-$1.263M	$100.0K
YoY Change	0.0%	141.95%	0.0%
Pretax Income	-$21.40M	-$34.69M	$4.800M
YoY Change	-545.83%	119.15%	-420.0%
Income Tax	-$200.0K	-$1.430M	$1.400M
% Of Pretax Income			29.17%
Net Earnings	-$21.20M	-$33.26M	$3.400M
YoY Change	-723.53%	222.64%	-440.0%
Net Earnings / Revenue	-40.85%	-20.14%	15.81%
Basic Earnings Per Share
Diluted Earnings Per Share	-$383.4K	-$616.7K	$62.16K
COMMON SHARES
Basic Shares Outstanding		53.96M shares
Diluted Shares Outstanding		53.96M shares

Balance Sheet

Concept	2012 Q4	2012	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.300M	$2.300M	$11.60M
YoY Change	-80.17%	-80.17%	-50.43%
Cash & Equivalents	$2.095M		$10.28M
Short-Term Investments	$200.0K	$200.0K	$1.300M
Other Short-Term Assets	$5.500M	$5.500M	$10.20M
YoY Change	-46.08%	-46.08%	72.88%
Inventory	$0.00	$900.0K	$1.300M
Prepaid Expenses	$1.103M
Receivables	$24.42M	$28.50M	$11.70M
Other Receivables	$974.0K	$1.000M	$1.500M
Total Short-Term Assets	$38.20M	$38.20M	$36.30M
YoY Change	5.23%	5.23%	-14.39%
LONG-TERM ASSETS
Property, Plant & Equipment	$591.1M	$591.1M	$399.9M
YoY Change	47.81%	47.81%	31.59%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$1.560M	$2.700M	$3.300M
YoY Change	-52.73%	-18.18%	3200.0%
Total Long-Term Assets	$593.8M	$593.8M	$403.2M
YoY Change	47.28%	47.27%	32.63%
TOTAL ASSETS
Total Short-Term Assets	$38.20M	$38.20M	$36.30M
Total Long-Term Assets	$593.8M	$593.8M	$403.2M
Total Assets	$632.0M	$632.0M	$439.5M
YoY Change	43.81%	43.8%	26.88%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$28.12M	$29.60M	$18.80M
YoY Change	49.57%	57.45%	45.74%
Accrued Expenses	$59.18M	$59.20M	$25.40M
YoY Change	132.99%	133.07%	71.62%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$25.00M
YoY Change	-100.0%	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$96.49M	$96.50M	$74.60M
YoY Change	29.35%	29.36%	147.02%
LONG-TERM LIABILITIES
Long-Term Debt	$150.0M	$150.0M	$88.00M
YoY Change	70.45%	70.45%	252.0%
Other Long-Term Liabilities	$1.324M	$6.400M	$5.400M
YoY Change	-75.48%	18.52%	42.11%
Total Long-Term Liabilities	$156.4M	$156.4M	$93.40M
YoY Change	67.49%	67.45%	224.31%
TOTAL LIABILITIES
Total Short-Term Liabilities	$96.49M	$96.50M	$74.60M
Total Long-Term Liabilities	$156.4M	$156.4M	$93.40M
Total Liabilities	$252.9M	$252.9M	$168.0M
YoY Change	50.55%	50.54%	160.47%
SHAREHOLDERS EQUITY
Retained Earnings	-$15.01M
YoY Change
Common Stock	$568.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.77M
YoY Change
Treasury Stock Shares	1.306M shares		1.201M shares
Shareholders Equity	$379.1M	$379.1M	$271.5M
YoY Change
Total Liabilities & Shareholders Equity	$632.0M	$632.0M	$439.5M
YoY Change	43.81%	43.8%	26.88%

Cashflow Statement

Concept	2012 Q4	2012	2011 Q4
OPERATING ACTIVITIES
Net Income	-$21.20M	-$33.26M	$3.400M
YoY Change	-723.53%	222.64%	-440.0%
Depreciation, Depletion And Amortization	$27.70M	$80.45M	$9.200M
YoY Change	201.09%	153.37%	95.74%
Cash From Operating Activities	$43.90M	$124.2M	$27.50M
YoY Change	59.64%	100.8%	366.1%
INVESTING ACTIVITIES
Capital Expenditures	-$90.00M	-$308.0M	-$53.10M
YoY Change	69.49%	91.19%	-27.95%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$1.100M	$700.0K
YoY Change	-100.0%	10.0%	-86.27%
Cash From Investing Activities	-$90.00M	-$306.9M	-$52.30M
YoY Change	72.08%	91.72%	-23.76%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$146.5M
YoY Change		24648.31%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	44.00M	$174.5M	27.40M
YoY Change	60.58%	99.56%	-39.38%
NET CHANGE
Cash From Operating Activities	43.90M	$124.2M	27.50M
Cash From Investing Activities	-90.00M	-$306.9M	-52.30M
Cash From Financing Activities	44.00M	$174.5M	27.40M
Net Change In Cash	-2.100M	-$8.189M	2.600M
YoY Change	-180.77%	-24.01%	-114.86%
FREE CASH FLOW
Cash From Operating Activities	$43.90M	$124.2M	$27.50M
Capital Expenditures	-$90.00M	-$308.0M	-$53.10M
Free Cash Flow	$133.9M	$432.2M	$80.60M
YoY Change	66.13%	93.85%	1.26%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	28120000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	25358000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	25823000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	24422000	USD
CY2012	us-gaap	Accretion Expense AccretionExpense	256000	USD
CY2013	us-gaap	Accretion Expense AccretionExpense	348000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	0	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	404000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	63987000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	59179000	USD
CY2012Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	6541000	USD
CY2013Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	7798000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	349370000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	468995000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	404311000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	548935000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	432000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	1232000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	7390000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	1667000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	11268000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4270000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	7484000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5769000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	209000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	256000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	348000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	175000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	660000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1243000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	936000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	-103000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	USD
CY2013	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	1500000	USD
CY2012	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	1200000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	534000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	7309000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5109000	USD
CY2013Q4	us-gaap	Assets Assets	890330000	USD
CY2012Q4	us-gaap	Assets Assets	632029000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	38197000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	42172000	USD
CY2011	us-gaap	Average Sales Prices AverageSalesPrices	92.71
CY2013	us-gaap	Average Sales Prices AverageSalesPrices	93.42
CY2011	us-gaap	Average Sales Prices AverageSalesPrices	4.118
CY2012	us-gaap	Average Sales Prices AverageSalesPrices	91.21
CY2013	us-gaap	Average Sales Prices AverageSalesPrices	3.670
CY2012	us-gaap	Average Sales Prices AverageSalesPrices	2.757
CY2013Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	16000000	USD
CY2013Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	194306000	USD
CY2012Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	149675000	USD
CY2013Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	16000000	USD
CY2013Q4	us-gaap	Cash Cash	6287000	USD
CY2012Q4	us-gaap	Cash Cash	2095000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21060000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2095000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10284000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6287000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-10776000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-8189000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	4192000	USD
CY2012Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	230000	USD
CY2013Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	0	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	568000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	670000	USD
CY2013Q4	us-gaap	Compensation And Benefits Trust CompensationAndBenefitsTrust	0	USD
CY2013	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;text-decoration:underline;">Credit Risk</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company’s cash is held in financial institutions and at times these amounts exceed the insurance limits of the Federal Deposit Insurance Corporation. Management believes, however, that the Company’s counterparty risks are minimal based on the reputation and history of the institutions selected.</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company uses derivative financial instruments to mitigate its exposure to oil, natural gas and natural gas liquids price volatility. These transactions expose the Company to potential credit risk from its counterparties. Accounts receivable constitute the principal component of additional credit risk to which the Company may be exposed. The Company believes that any credit risk posed is insignificant and is offset by the creditworthiness of its customer base and industry partners.</font></div></div>
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	94552000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	200444000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	198584000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	404000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-46000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	404000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-46000	USD
CY2012Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	300000	USD
CY2013Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	1200000	USD
CY2011Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	300000	USD
CY2013Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	100000	USD
CY2012Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	100000	USD
CY2011Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	2900000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1100000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5475000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1430000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9293000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-819000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	431000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-435000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross Current DeferredTaxAssetsGrossCurrent	1102000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross Current DeferredTaxAssetsGrossCurrent	1636000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	51314000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	70099000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	1636000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	900000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	41256000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	70069000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	1636000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	411000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	609000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	869000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	62000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	233000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	6660000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	7064000	USD
CY2013Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15800000	USD
CY2013Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10300000	USD
CY2012Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance Current DeferredTaxAssetsValuationAllowanceCurrent	0	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance Current DeferredTaxAssetsValuationAllowanceCurrent	202000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	30000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	10058000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	411000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1311000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Gross Noncurrent DeferredTaxLiabilitiesGrossNoncurrent	40845000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Gross Noncurrent DeferredTaxLiabilitiesGrossNoncurrent	80998000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	10929000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	36363000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	76719000	USD
CY2013	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	300000	USD
CY2011	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	200000	USD
CY2012	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	300000	USD
CY2013	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	80454000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	98395000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	31754000	USD
CY2013Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	7704000	USD
CY2012Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	3306000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	4378000	USD
CY2013Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	19000	USD
CY2013Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	173000	USD
CY2012Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	771000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7896000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	8455000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	192000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	5149000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	3976000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	10649000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	670000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	2945000	USD
CY2012Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	670000	USD
CY2013Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	2692000	USD
CY2013Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	253000	USD
CY2012Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2012Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	3306000	USD
CY2013Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	7704000	USD
CY2013Q4	us-gaap	Development Costs Cumulative DevelopmentCostsCumulative	3145000	USD
CY2012	us-gaap	Distributed Earnings DistributedEarnings	28000	USD
CY2011	us-gaap	Distributed Earnings DistributedEarnings	275000	USD
CY2013	us-gaap	Distributed Earnings DistributedEarnings	0	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	275000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	28000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	274853	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	27643	USD
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.177
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	4100000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	900000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	300000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	0	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	0	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	0	USD
CY2013Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	1.0
CY2013Q4	us-gaap	Exploration Costs Cumulative ExplorationCostsCumulative	12901000	USD
CY2013	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-909000	USD
CY2012	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	13960000	USD
CY2011	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	7106000	USD
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-60000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	113757	USD
CY2012	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	300000	USD
CY2013	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	5300000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	13394000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	20779000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14543000	USD
CY2013	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	21229000	USD
CY2011	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	35673000	USD
CY2012	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	63475000	USD
CY2011Q1	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	35700000	USD
CY2012Q4	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	26700000	USD
CY2013Q1	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	21200000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	3600000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	33200000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-15830000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	54791000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-34691000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9697000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5521000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1430000	USD
CY2013	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-8885000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	10260000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-5319000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11767000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	19177000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-122000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	48000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	0	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	231000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	0	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	16342000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1523000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2160000	USD
	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	11900000	USD
CY2013Q1	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	7500000	USD
	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	1300000	USD
CY2011Q1	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	12700000	USD
CY2012	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	9400000	USD
CY2012	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	0	USD
CY2011	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	0	USD
CY2013	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	404000	USD
CY2013	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-3638000	USD
CY2012	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	19740000	USD
CY2011	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	13497000	USD
CY2012	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	282000	USD
CY2013	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	415000	USD
CY2011	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	613000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	673000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	548000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	814000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-50000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	668000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-650000	USD
CY2011	us-gaap	Increase Decrease In Royalties Payable IncreaseDecreaseInRoyaltiesPayable	873000	USD
CY2013	us-gaap	Increase Decrease In Royalties Payable IncreaseDecreaseInRoyaltiesPayable	1257000	USD
CY2012	us-gaap	Increase Decrease In Royalties Payable IncreaseDecreaseInRoyaltiesPayable	4685000	USD
CY2011	us-gaap	Interest And Other Income InterestAndOtherIncome	315000	USD
CY2013	us-gaap	Interest And Other Income InterestAndOtherIncome	225000	USD
CY2012	us-gaap	Interest And Other Income InterestAndOtherIncome	224000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1600000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1300000	USD
CY2011	us-gaap	Interest Expense InterestExpense	683000	USD
CY2012	us-gaap	Interest Expense InterestExpense	1002000	USD
CY2013	us-gaap	Interest Expense InterestExpense	5687000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	5801000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	780000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	634000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	0	USD
CY2012	us-gaap	Lease Operating Expense LeaseOperatingExpense	28184000	USD
CY2011	us-gaap	Lease Operating Expense LeaseOperatingExpense	7244000	USD
CY2013	us-gaap	Lease Operating Expense LeaseOperatingExpense	38720000	USD
CY2013Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	300000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	632029000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	890330000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	96492000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	100327000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	156433000	USD
CY2013Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	221079000	USD
CY2013	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2016-12-29
CY2013Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.033
CY2013Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	200000000	USD
CY2012Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	150000000	USD
CY2013	us-gaap	Loss Contingency Lawsuit Filing Date LossContingencyLawsuitFilingDate	May 15, 2008
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">NATURE OF OPERATIONS</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Matador Resources Company (“Matador” and, collectively with its subsidiaries, the “Company”) is an independent energy company engaged in the exploration, development, production and acquisition of oil and natural gas resources in the United States, with an emphasis on oil and natural gas shale and other unconventional plays. Matador’s current operations are focused primarily on the oil and liquids-rich portion of the Eagle Ford shale play in South Texas and the Wolfcamp and Bone Spring plays in the Permian Basin in Southeast New Mexico and West Texas. The Company also operates in the Haynesville shale and Cotton Valley plays in Northwest Louisiana and East Texas. In addition, Matador has a large exploratory leasehold position in Southwest Wyoming and adjacent areas in Utah and Idaho where the Company is testing the Meade Peak shale.</font></div><div style="line-height:120%;padding-top:12px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On November 22, 2010, the company formerly known as Matador Resources Company, a Texas corporation founded on July 3, 2003, formed a wholly-owned subsidiary, Matador Holdco, Inc. Pursuant to the terms of a corporate reorganization that was completed on August 9, 2011 and in connection with its initial public offering, the former Matador Resources Company became a wholly-owned subsidiary of Matador Holdco, Inc. and changed its corporate name to MRC Energy Company, and Matador Holdco, Inc. changed its corporate name to Matador Resources Company.</font></div><div style="line-height:120%;padding-top:12px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">MRC Energy Company holds the primary assets of the Company and has </font><font style="font-family:inherit;font-size:10pt;">four</font><font style="font-family:inherit;font-size:10pt;"> wholly-owned subsidiaries: Matador Production Company, MRC Permian Company, MRC Rockies Company and Longwood Gathering and Disposal Systems GP, Inc. Matador Production Company serves as the oil and natural gas operating entity. MRC Permian Company conducts oil and natural gas exploration and development activities in Southeast New Mexico and West Texas. MRC Rockies Company conducts oil and natural gas exploration and development activities in the Rocky Mountains and specifically in the states of Wyoming, Utah and Idaho. Longwood Gathering and Disposal Systems GP, Inc. serves as the general partner of Longwood Gathering and Disposal Systems, LP, which owns a majority of the pipeline systems and salt water disposal wells used in the Company’s operations, transports limited quantities of third-party natural gas and disposes of limited quantities of third-party salt water.</font></div></div>
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	191661000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	87444000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	174499000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-306916000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-160088000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-366939000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124228000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	179470000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	61868000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-33261000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	-10309000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	45094000	USD
CY2013	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2013Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	4785000	USD
CY2012Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	4118000	USD
CY2013Q4	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	463091000	USD
CY2012Q4	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	344609000	USD
CY2013Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	1090656000	USD
CY2012Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	763527000	USD
CY2013Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	821871000	USD
CY2012Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	568593000	USD
CY2013	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	269030000	USD
CY2011	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	67000000	USD
CY2012	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	155998000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	-33428000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	-15308000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	60445000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	7589000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	812000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	893000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	872000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	852000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	831000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	3329000	USD
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	800000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	600000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	500000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2410000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3586000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	2281000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	2742000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1560000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2108000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	88000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	56000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1324000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2588000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1263000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-522000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5654000	USD
CY2013Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	1066000	USD
CY2012Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	974000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	96000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	275000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	USD
CY2012	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	11599000	USD
CY2013	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	7390000	USD
CY2011	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1710000	USD
CY2011	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	4671000	USD
CY2013	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	3977000	USD
CY2012	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	7332000	USD
CY2012	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	300689000	USD
CY2011	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	156431000	USD
CY2013	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	363192000	USD
CY2013Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	1771000	USD
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	1103000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;text-decoration:underline;">Reclassifications</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain reclassifications have been made to the prior years’ financial statements to conform to the current year presentation. These reclassifications had no effect on previously reported results of operations, cash flows or retained earnings.</font></div></div>
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	592000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	149069000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	146510000	USD
CY2013Q3	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	141700000	USD
CY2012	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	160000000	USD
CY2013	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	180000000	USD
CY2011	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	191000000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2660000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	837000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	845877000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	591090000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net Excluding Capital Leased Assets PropertyPlantAndEquipmentNetExcludingCapitalLeasedAssets	24006000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net Excluding Capital Leased Assets PropertyPlantAndEquipmentNetExcludingCapitalLeasedAssets	22497000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	29910000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	27258000	USD
CY2011	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	103000000	USD
CY2012	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	123000000	USD
CY2013	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	130000000	USD
CY2012Q1	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	123000000	USD
CY2013Q3	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	130000000	USD
CY2012	us-gaap	Restricted Stock Expense RestrictedStockExpense	758000	USD
CY2013	us-gaap	Restricted Stock Expense RestrictedStockExpense	1618000	USD
CY2013	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	1363000	USD
CY2012	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	1195000	USD
CY2011	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	488000	USD
CY2013	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	7548000	USD
CY2012	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	24847000	USD
CY2011	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	1864000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-15010000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	30084000	USD
CY2013	us-gaap	Revenues Revenues	260889000	USD
CY2012	us-gaap	Revenues Revenues	165156000	USD
CY2011	us-gaap	Revenues Revenues	79244000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	2406000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	140000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	3897000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	21876	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	105126	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	4000000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	18.64
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	200000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	36000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	900000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	449000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	59000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	9.86
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	874000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	5.95
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.91
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	13300000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1067000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1428000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.32
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.19
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	1100000	USD
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.77
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	10.30
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	8.78
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	900000	USD
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y11M19D
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1000000	USD
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	300000	USD
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	300000	USD
CY2013Q3	us-gaap	Stock Issued During Period Shares Issued For Cash StockIssuedDuringPeriodSharesIssuedForCash	9775000	shares
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	5000	shares
CY2012Q1	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	12209167	shares
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	592000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	146510000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	149069000	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	22000	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	29000	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	44000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	162000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	216000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1023000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3544000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	379104000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	568924000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	281877000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	271515000	USD
CY2013Q4	mtdr	Accumulated Depreciation And Amortization Of Other Property And Equipment AccumulatedDepreciationAndAmortizationOfOtherPropertyAndEquipment	5904000	USD
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1201051	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1306177	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10765000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10765000	USD
	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	21300000	USD
CY2011Q1	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	23000000	USD
	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	2300000	USD
CY2012	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	17300000	USD
CY2013Q1	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	13700000	USD
CY2011	us-gaap	Undistributed Earnings UndistributedEarnings	-10584000	USD
CY2012	us-gaap	Undistributed Earnings UndistributedEarnings	-33289000	USD
CY2013	us-gaap	Undistributed Earnings UndistributedEarnings	45094000	USD
CY2012	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-4802000	USD
CY2011	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	5138000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-7232000	USD
CY2013Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	4731000	USD
CY2013Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	1195000	USD
CY2013Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	2992000	USD
CY2013Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	1800000	USD
CY2013Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	10718000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;text-decoration:underline;">Use of Estimates</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates and assumptions may also affect disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. While the Company believes its estimates are reasonable, changes in facts and assumptions or the discovery of new information may result in revised estimates. Actual results could differ from these estimates.</font></div><div style="line-height:120%;padding-top:12px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company’s consolidated financial statements are based on a number of significant estimates, including oil and natural gas revenues, accrued assets and liabilities, stock-based compensation, valuation of derivative instruments, deferred tax assets and liabilities and oil and natural gas reserves. The estimates of oil and natural gas reserves quantities and future net cash flows are the basis for the calculations of depletion and impairment of oil and natural gas properties, as well as estimates of asset retirement obligations and certain tax accruals. The Company’s oil and natural gas reserves estimates, which are inherently imprecise and based upon many factors that are beyond the Company’s control, including oil and natural gas prices, are prepared by the Company’s engineering staff in accordance with guidelines established by the Securities and Exchange Commission (“SEC”) and then audited for their reasonableness and conformance with SEC guidelines by Netherland, Sewell & Associates, Inc., independent reservoir engineers.</font></div></div>
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	7900000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53957000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42718000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	58929000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	58777000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42718000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53957000	shares
CY2013Q4	us-gaap	Wells In Process Of Drilling WellsInProcessOfDrilling	2	well
CY2012Q4	mtdr	Accumulated Depreciation And Amortization Of Other Property And Equipment AccumulatedDepreciationAndAmortizationOfOtherPropertyAndEquipment	4761000	USD
CY2012Q3	mtdr	Acres Reformed By Court AcresReformedByCourt	169	acre
CY2012	mtdr	Adjustments To Additional Paid In Capital Change In Fair Value Of Liability Based Awards AdjustmentsToAdditionalPaidInCapitalChangeInFairValueOfLiabilityBasedAwards	620000	USD
CY2013Q4	mtdr	Advances From Joint Interest Owners For Costs Incurred On Joint Interest Wells AdvancesFromJointInterestOwnersForCostsIncurredOnJointInterestWells	0	USD
CY2012Q4	mtdr	Advances From Joint Interest Owners For Costs Incurred On Joint Interest Wells AdvancesFromJointInterestOwnersForCostsIncurredOnJointInterestWells	1515000	USD
CY2012Q4	mtdr	Aggregate Amount Of Loan Under Loan Program AggregateAmountOfLoanUnderLoanProgram	200000	USD
CY2013	mtdr	Amount Of Remittance On Success Of Legal Disputes AmountOfRemittanceOnSuccessOfLegalDisputes	8700000	USD
CY2013	mtdr	Asset Retirement Obligations Related To Support Equipment And Facilities AssetRetirementObligationsRelatedToSupportEquipmentAndFacilities	3000	USD
CY2011	mtdr	Asset Retirement Obligations Related To Support Equipment And Facilities AssetRetirementObligationsRelatedToSupportEquipmentAndFacilities	12000	USD
CY2012	mtdr	Asset Retirement Obligations Related To Support Equipment And Facilities AssetRetirementObligationsRelatedToSupportEquipmentAndFacilities	49000	USD
CY2013Q4	mtdr	Billing Date BillingDate	P30D
CY2013Q4	mtdr	Capitalized Costs Of Unproved Properties Excluded From Cumulative Amortization CapitalizedCostsOfUnprovedPropertiesExcludedFromCumulativeAmortization	2200000	USD
CY2013Q4	mtdr	Capitalized Costs Unproved Properties2010and Prior CapitalizedCostsUnprovedProperties2010andPrior	77355000	USD
CY2012Q4	mtdr	Capitalized Costs Unproved Properties2010and Prior CapitalizedCostsUnprovedProperties2010andPrior	89049000	USD
CY2012Q4	mtdr	Capitalized Costs Unproved Properties2011 CapitalizedCostsUnprovedProperties2011	24138000	USD
CY2013Q4	mtdr	Capitalized Costs Unproved Properties2011 CapitalizedCostsUnprovedProperties2011	10982000	USD
CY2012Q4	mtdr	Capitalized Costs Unproved Properties2012 CapitalizedCostsUnprovedProperties2012	36488000	USD
CY2013Q4	mtdr	Capitalized Costs Unproved Properties2012 CapitalizedCostsUnprovedProperties2012	23341000	USD
CY2012Q4	mtdr	Capitalized Costs Unproved Properties2013 CapitalizedCostsUnprovedProperties2013	0	USD
CY2013Q4	mtdr	Capitalized Costs Unproved Properties2013 CapitalizedCostsUnprovedProperties2013	82628000	USD
CY2011	mtdr	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	2000000	USD
CY2013	mtdr	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	3700000	USD
CY2012	mtdr	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	2600000	USD
CY2011	mtdr	Common Stock And Restricted Stock Expense CommonStockAndRestrictedStockExpense	200000	USD
CY2013	mtdr	Common Stock And Restricted Stock Expense CommonStockAndRestrictedStockExpense	331000	USD
CY2012	mtdr	Common Stock And Restricted Stock Expense CommonStockAndRestrictedStockExpense	100000	USD
CY2013Q2	mtdr	Debtand Equity Authorized Amount DebtandEquityAuthorizedAmount	300000000	USD
CY2013Q4	mtdr	Debtand Equity Remaining Authorized Amount DebtandEquityRemainingAuthorizedAmount	151000000	USD
CY2013	mtdr	Decrease Increase In Liabilities For Accrued Cost To Issue Equity DecreaseIncreaseInLiabilitiesForAccruedCostToIssueEquity	0	USD
CY2012	mtdr	Decrease Increase In Liabilities For Accrued Cost To Issue Equity DecreaseIncreaseInLiabilitiesForAccruedCostToIssueEquity	-332000	USD
CY2011	mtdr	Decrease Increase In Liabilities For Accrued Cost To Issue Equity DecreaseIncreaseInLiabilitiesForAccruedCostToIssueEquity	-27000	USD
CY2012Q4	mtdr	Deferred Tax Assets Derivative Noncurrent DeferredTaxAssetsDerivativeNoncurrent	0	USD
CY2013Q4	mtdr	Deferred Tax Assets Derivative Noncurrent DeferredTaxAssetsDerivativeNoncurrent	28000	USD
CY2012Q4	mtdr	Deferred Tax Assets Derivatives Current DeferredTaxAssetsDerivativesCurrent	0	USD
CY2013Q4	mtdr	Deferred Tax Assets Derivatives Current DeferredTaxAssetsDerivativesCurrent	965000	USD
CY2013Q4	mtdr	Deferred Tax Assets Liabilities Netof Valuation Allowance Current DeferredTaxAssetsLiabilitiesNetofValuationAllowanceCurrent	1636000	USD
CY2012Q4	mtdr	Deferred Tax Assets Liabilities Netof Valuation Allowance Current DeferredTaxAssetsLiabilitiesNetofValuationAllowanceCurrent	-411000	USD
CY2012Q4	mtdr	Deferred Tax Assets Liabilities Netof Valuation Allowance Noncurrent DeferredTaxAssetsLiabilitiesNetofValuationAllowanceNoncurrent	411000	USD
CY2013Q4	mtdr	Deferred Tax Assets Liabilities Netof Valuation Allowance Noncurrent DeferredTaxAssetsLiabilitiesNetofValuationAllowanceNoncurrent	-10929000	USD
CY2012Q4	mtdr	Deferred Tax Assets Operating Loss Carryforwards Noncurrent DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent	44654000	USD
CY2013Q4	mtdr	Deferred Tax Assets Operating Loss Carryforwards Noncurrent DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent	63007000	USD
CY2013Q4	mtdr	Deferred Tax Liabilities Derivatives Non Current DeferredTaxLiabilitiesDerivativesNonCurrent	0	USD
CY2012Q4	mtdr	Deferred Tax Liabilities Derivatives Non Current DeferredTaxLiabilitiesDerivativesNonCurrent	262000	USD
CY2013Q4	mtdr	Deferred Tax Liabilities Other Noncurrent DeferredTaxLiabilitiesOtherNoncurrent	4279000	USD
CY2012Q4	mtdr	Deferred Tax Liabilities Other Noncurrent DeferredTaxLiabilitiesOtherNoncurrent	4220000	USD
CY2013	mtdr	Defined Contribution Plan Employer Additional Discretionary Contribution Amount DefinedContributionPlanEmployerAdditionalDiscretionaryContributionAmount	0	USD
CY2013	mtdr	Defined Contribution Plan Employer Matching Contribution Amount DefinedContributionPlanEmployerMatchingContributionAmount	200000	USD
CY2012	mtdr	Defined Contribution Plan Employer Matching Contribution Amount DefinedContributionPlanEmployerMatchingContributionAmount	200000	USD
CY2011	mtdr	Defined Contribution Plan Employer Matching Contribution Amount DefinedContributionPlanEmployerMatchingContributionAmount	200000	USD
CY2013Q4	mtdr	Derivative Asset Fair Value Subjectto Master Netting Gross Asset Basis DerivativeAssetFairValueSubjecttoMasterNettingGrossAssetBasis	0	USD
CY2012Q4	mtdr	Derivative Asset Fair Value Subjectto Master Netting Gross Asset Basis DerivativeAssetFairValueSubjecttoMasterNettingGrossAssetBasis	82000	USD
CY2012Q4	mtdr	Derivative Liability Fair Value Subjectto Master Netting Gross Liability Basis DerivativeLiabilityFairValueSubjecttoMasterNettingGrossLiabilityBasis	82000	USD
CY2013Q4	mtdr	Derivative Liability Fair Value Subjectto Master Netting Gross Liability Basis DerivativeLiabilityFairValueSubjecttoMasterNettingGrossLiabilityBasis	0	USD
CY2013	mtdr	Discounting Rate Present Value Of Future Revenue From Proved Oil And Gas Reserves DiscountingRatePresentValueOfFutureRevenueFromProvedOilAndGasReserves	0.1
CY2013	mtdr	Effective Base Rent Over Term Of New Lease EffectiveBaseRentOverTermOfNewLease	20.28	sqft
CY2013	mtdr	Effective Income Tax Rate Reconciliation Changein State Deferred Tax Assets Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationChangeinStateDeferredTaxAssetsValuationAllowanceAmount	-1345000	USD
CY2012	mtdr	Effective Income Tax Rate Reconciliation Changein State Deferred Tax Assets Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationChangeinStateDeferredTaxAssetsValuationAllowanceAmount	0	USD
CY2011	mtdr	Effective Income Tax Rate Reconciliation Changein State Deferred Tax Assets Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationChangeinStateDeferredTaxAssetsValuationAllowanceAmount	0	USD
CY2012Q1	mtdr	Entity Listing Date Of Listing EntityListingDateOfListing	2012-02-01
CY2013	mtdr	Federal Funds Effective Plus Rate FederalFundsEffectivePlusRate	0.005
CY2013	mtdr	Income Tax Reconciliation Income Federal Alternative Minimum Tax IncomeTaxReconciliationIncomeFederalAlternativeMinimumTax	-404000	USD
CY2012	mtdr	Income Tax Reconciliation Income Federal Alternative Minimum Tax IncomeTaxReconciliationIncomeFederalAlternativeMinimumTax	0	USD
CY2011	mtdr	Income Tax Reconciliation Income Federal Alternative Minimum Tax IncomeTaxReconciliationIncomeFederalAlternativeMinimumTax	0	USD
CY2011	mtdr	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	0	USD
CY2012	mtdr	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	1018000	USD
CY2013	mtdr	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	319000	USD
CY2013	mtdr	Increase Decrease In Liabilities For Support Equipment And Facilities IncreaseDecreaseInLiabilitiesForSupportEquipmentAndFacilities	660000	USD
CY2012	mtdr	Increase Decrease In Liabilities For Support Equipment And Facilities IncreaseDecreaseInLiabilitiesForSupportEquipmentAndFacilities	1112000	USD
CY2011	mtdr	Increase Decrease In Liabilities For Support Equipment And Facilities IncreaseDecreaseInLiabilitiesForSupportEquipmentAndFacilities	175000	USD
CY2011	mtdr	Increase Decrease In Payments Made In Advance By Joint Interest Partners In Oil And Gas Properties IncreaseDecreaseInPaymentsMadeInAdvanceByJointInterestPartnersInOilAndGasProperties	723000	USD
CY2013	mtdr	Increase Decrease In Payments Made In Advance By Joint Interest Partners In Oil And Gas Properties IncreaseDecreaseInPaymentsMadeInAdvanceByJointInterestPartnersInOilAndGasProperties	1515000	USD
CY2012	mtdr	Increase Decrease In Payments Made In Advance By Joint Interest Partners In Oil And Gas Properties IncreaseDecreaseInPaymentsMadeInAdvanceByJointInterestPartnersInOilAndGasProperties	-1515000	USD
CY2012Q1	mtdr	Initial Public Offering Closure Date InitialPublicOfferingClosureDate	2012-03-07
CY2012Q1	mtdr	Initial Public Offering Closure Date InitialPublicOfferingClosureDate	2012-02-07
CY2012Q4	mtdr	Inventory Drilling Rig Parts Net At Carrying Value InventoryDrillingRigPartsNetAtCarryingValue	0	USD
CY2013	mtdr	Issuance Of Common Stock For Board And Advisor Services IssuanceOfCommonStockForBoardAndAdvisorServices	57000	USD
CY2011	mtdr	Issuance Of Common Stock For Board And Advisor Services IssuanceOfCommonStockForBoardAndAdvisorServices	230000	USD
CY2012	mtdr	Issuance Of Common Stock For Board And Advisor Services IssuanceOfCommonStockForBoardAndAdvisorServices	71000	USD
CY2013Q3	mtdr	Issuance Of Common Stock Under Public Offering To Underwriters By Company IssuanceOfCommonStockUnderPublicOfferingToUnderwritersByCompany	1275000	shares
CY2011	mtdr	Issuance Of Restricted Stock Units For Board And Advisor Services IssuanceOfRestrictedStockUnitsForBoardAndAdvisorServices	0	USD
CY2012	mtdr	Issuance Of Restricted Stock Units For Board And Advisor Services IssuanceOfRestrictedStockUnitsForBoardAndAdvisorServices	73000	USD
CY2013	mtdr	Issuance Of Restricted Stock Units For Board And Advisor Services IssuanceOfRestrictedStockUnitsForBoardAndAdvisorServices	274000	USD
CY2011	mtdr	Lease And Well Equipment Inventories LeaseAndWellEquipmentInventories	-21000	USD
CY2012	mtdr	Lease And Well Equipment Inventories LeaseAndWellEquipmentInventories	-50000	USD
CY2013	mtdr	Lease And Well Equipment Inventories LeaseAndWellEquipmentInventories	-243000	USD
CY2012Q4	mtdr	Lease And Well Equipment Inventory LeaseAndWellEquipmentInventory	877000	USD
CY2013Q4	mtdr	Lease And Well Equipment Inventory LeaseAndWellEquipmentInventory	785000	USD
CY2013	mtdr	Line Of Credit Borrowing Base Frequency Of Valuation LineOfCreditBorrowingBaseFrequencyOfValuation	semi-annually
CY2013Q2	mtdr	Line Of Credit Conforming Borrowing Base LineOfCreditConformingBorrowingBase	245000000	USD
CY2013Q1	mtdr	Line Of Credit Conforming Borrowing Base LineOfCreditConformingBorrowingBase	220000000	USD
CY2013Q3	mtdr	Line Of Credit Conforming Borrowing Base LineOfCreditConformingBorrowingBase	275000000	USD
CY2013	mtdr	Lineof Credit Facility Actual Debtto Ebitda Ratio LineofCreditFacilityActualDebttoEbitdaRatio	4.0
CY2013	mtdr	Lineof Credit Facility Current Ratio LineofCreditFacilityCurrentRatio	1.0
CY2011Q4	mtdr	Loans Granted Prior To Termination Of Loan Program LoansGrantedPriorToTerminationOfLoanProgram	0	USD
CY2013Q4	mtdr	Loss Contingency Area Of Disputed Lease Land LossContingencyAreaOfDisputedLeaseLand	1805	acre
CY2013Q4	mtdr	Loss Contingency Maximum Percentage Of Aggregate Revenue And Overriding Royalty Interests LossContingencyMaximumPercentageOfAggregateRevenueAndOverridingRoyaltyInterests	0.23
CY2013Q4	mtdr	Loss Contingency Maximum Working Interest LossContingencyMaximumWorkingInterest	0.25
CY2013Q4	mtdr	Loss Contingency Minimum Percentage Of Aggregate Revenue And Overriding Royalty Interests LossContingencyMinimumPercentageOfAggregateRevenueAndOverridingRoyaltyInterests	0.02
CY2013Q4	mtdr	Maximum Termination Outstanding Obligations Of Contracts MaximumTerminationOutstandingObligationsOfContracts	9900000	USD
CY2013	mtdr	Minimum Delivery Commitment To Avoid Paying Gas Deficiency Fee MinimumDeliveryCommitmentToAvoidPayingGasDeficiencyFee	0.8
CY2013Q4	mtdr	Minimum Outstanding Aggregate Commitments MinimumOutstandingAggregateCommitments	5700000	USD
CY2013	mtdr	Minimum Percentage Likelihood Of Tax Benefit To Be Realized Upon Final Settlement MinimumPercentageLikelihoodOfTaxBenefitToBeRealizedUponFinalSettlement	0.50
CY2013	mtdr	Natural Gas Processing And Transportation Agreement Initiation Date NaturalGasProcessingAndTransportationAgreementInitiationDate	2012-09-01
CY2013	mtdr	Natural Gas Processing And Transportation Agreement Maturity Period NaturalGasProcessingAndTransportationAgreementMaturityPeriod	P5Y
CY2011	mtdr	Net Loss On Asset Sales And Inventory Impairment NetLossOnAssetSalesAndInventoryImpairment	154000	USD
CY2012	mtdr	Net Loss On Asset Sales And Inventory Impairment NetLossOnAssetSalesAndInventoryImpairment	485000	USD
CY2013	mtdr	Net Loss On Asset Sales And Inventory Impairment NetLossOnAssetSalesAndInventoryImpairment	192000	USD
CY2012	mtdr	Number Of Employees Loans Secured NumberOfEmployeesLoansSecured	4	Employees
CY2013	mtdr	Number Of Purchasers NumberOfPurchasers	5	Purchasers
CY2012	mtdr	Number Of Purchasers NumberOfPurchasers	3	Purchasers
CY2011	mtdr	Number Of Purchasers NumberOfPurchasers	3	Purchasers
CY2013Q4	mtdr	Number Of Wholly Owned Subsidiary NumberOfWhollyOwnedSubsidiary	4	Subsidiaries
CY2012Q1	mtdr	Offering Period To Underwriters OfferingPeriodToUnderwriters	P30D
CY2012Q4	mtdr	Oil And Gas Property Full Cost Method Including Unproved And Unevaluated Gross OilAndGasPropertyFullCostMethodIncludingUnprovedAndUnevaluatedGross	913202000	USD
CY2013Q4	mtdr	Oil And Gas Property Full Cost Method Including Unproved And Unevaluated Gross OilAndGasPropertyFullCostMethodIncludingUnprovedAndUnevaluatedGross	1284962000	USD
CY2013	mtdr	Outstanding Days Of Account Receivable OutstandingDaysOfAccountReceivable	P60D
CY2013	mtdr	Payment For Settlement Of Liability Based Awards PaymentForSettlementOfLiabilityBasedAwards	0	USD
CY2011	mtdr	Payment For Settlement Of Liability Based Awards PaymentForSettlementOfLiabilityBasedAwards	100000	USD
CY2012	mtdr	Payment For Settlement Of Liability Based Awards PaymentForSettlementOfLiabilityBasedAwards	0	USD
CY2013	mtdr	Percentage Of Reserves Required To Maintain PercentageOfReservesRequiredToMaintain	1.00
CY2013	mtdr	Percentageof Costs Assumed PercentageofCostsAssumed	1
CY2013Q3	mtdr	Proceeds From Public Offering Usedto Fund Working Capital ProceedsFromPublicOfferingUsedtoFundWorkingCapital	11700000	USD
CY2011	mtdr	Production Taxes And Marketing ProductionTaxesAndMarketing	6278000	USD
CY2013	mtdr	Production Taxes And Marketing ProductionTaxesAndMarketing	20973000	USD
CY2012	mtdr	Production Taxes And Marketing ProductionTaxesAndMarketing	11672000	USD
CY2013Q3	mtdr	Public Offering Underwriting Discounts Commissionsand Direct Offering Costs PublicOfferingUnderwritingDiscountsCommissionsandDirectOfferingCosts	7400000	USD
CY2012	mtdr	Purchases Of Certificates Of Deposit PurchasesOfCertificatesOfDeposit	496000	USD
CY2013	mtdr	Purchases Of Certificates Of Deposit PurchasesOfCertificatesOfDeposit	61000	USD
CY2011	mtdr	Purchases Of Certificates Of Deposit PurchasesOfCertificatesOfDeposit	4298000	USD
CY2013	mtdr	Repay Deficit In Agreement Period RepayDeficitInAgreementPeriod	P6M
CY2012Q3	mtdr	Rights On Remaining Acres RightsOnRemainingAcres	1636	acre
CY2008Q2	mtdr	Royalty Owner Undivided Interestin Minerals RoyaltyOwnerUndividedInterestinMinerals	0.167
CY2011	mtdr	Sales Of Certificates Of Deposit SalesOfCertificatesOfDeposit	5312000	USD
CY2012	mtdr	Sales Of Certificates Of Deposit SalesOfCertificatesOfDeposit	1601000	USD
CY2013	mtdr	Sales Of Certificates Of Deposit SalesOfCertificatesOfDeposit	291000	USD
CY2013	mtdr	Settlementof Stockbased Compensation Tax SettlementofStockbasedCompensationTax	18000	USD
CY2011	mtdr	Settlementof Stockbased Compensation Tax SettlementofStockbasedCompensationTax	0	USD
CY2012	mtdr	Settlementof Stockbased Compensation Tax SettlementofStockbasedCompensationTax	0	USD
CY2013Q4	mtdr	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingAggregateIntrinsicValue	14000000	USD
CY2011	mtdr	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Estimated Fair Value Per Share ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEstimatedFairValuePerShare	12.00
CY2012	mtdr	Stock Based Compensation Expense Recognized As Liability StockBasedCompensationExpenseRecognizedAsLiability	-1092000	USD
CY2011	mtdr	Stock Based Compensation Expense Recognized As Liability StockBasedCompensationExpenseRecognizedAsLiability	2102000	USD
CY2013	mtdr	Stock Based Compensation Expense Recognized As Liability StockBasedCompensationExpenseRecognizedAsLiability	1012000	USD
CY2012	mtdr	Stock Issued During Period Value Common Stock To Board Members And Advisors StockIssuedDuringPeriodValueCommonStockToBoardMembersAndAdvisors	71000	USD
CY2011	mtdr	Stock Issued During Period Value Common Stock To Board Members And Advisors StockIssuedDuringPeriodValueCommonStockToBoardMembersAndAdvisors	230000	USD
CY2013	mtdr	Stock Issued During Period Value Common Stock To Board Members And Advisors StockIssuedDuringPeriodValueCommonStockToBoardMembersAndAdvisors	57000	USD
CY2012	mtdr	Swing Sale Profit SwingSaleProfit	-24000	USD
CY2011	mtdr	Swing Sale Profit SwingSaleProfit	0	USD
CY2013	mtdr	Swing Sale Profit SwingSaleProfit	0	USD
CY2013	mtdr	Term Of New Contract Drilling Rig TermOfNewContractDrillingRig	P1Y
CY2013	mtdr	Transfer Of Inventory From Oil And Natural Gas Properties TransferOfInventoryFromOilAndNaturalGasProperties	343000	USD
CY2012	mtdr	Transfer Of Inventory From Oil And Natural Gas Properties TransferOfInventoryFromOilAndNaturalGasProperties	69000	USD
CY2011	mtdr	Transfer Of Inventory From Oil And Natural Gas Properties TransferOfInventoryFromOilAndNaturalGasProperties	96000	USD
CY2013Q4	mtdr	Unamortized Deferred Finance Costs UnamortizedDeferredFinanceCosts	2100000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001520006
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	65744878	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	593728477	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	Matador Resources Co
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No

Files In Submission

Name	View Source	Status
0001520006-14-000017-index-headers.html	Edgar Link	pending
0001520006-14-000017-index.html	Edgar Link	pending
0001520006-14-000017.txt	Edgar Link	pending
0001520006-14-000017-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
mtdr-20131231.xml	Edgar Link	completed
mtdr-20131231.xsd	Edgar Link	pending
mtdr-20131231_cal.xml	Edgar Link	unprocessable
mtdr-20131231_def.xml	Edgar Link	unprocessable
mtdr-20131231_lab.xml	Edgar Link	unprocessable
mtdr-20131231_pre.xml	Edgar Link	unprocessable
mtdr10-k12312013.htm	Edgar Link	pending
mtdr10-k12312013ex1050.htm	Edgar Link	pending
mtdr10-k12312013ex1051.htm	Edgar Link	pending
mtdr10-k12312013ex211.htm	Edgar Link	pending
mtdr10-k12312013ex231.htm	Edgar Link	pending
mtdr10-k12312013ex232.htm	Edgar Link	pending
mtdr10-k12312013ex311.htm	Edgar Link	pending
mtdr10-k12312013ex312.htm	Edgar Link	pending
mtdr10-k12312013ex321.htm	Edgar Link	pending
mtdr10-k12312013ex322.htm	Edgar Link	pending
mtdr10-k12312013ex991.htm	Edgar Link	pending
mtdr10-k12_chartx53583.jpg	Edgar Link	pending
nsaiauditletterimage1.gif	Edgar Link	pending
nsaiauditletterimage3.gif	Edgar Link	pending
nsailetterheada01.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
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R64.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
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R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$MTDR
Matador Resources Co Stock $mtdr

2012 Q4 Form 10-K Financial Statement

#000152000614000017 Filed on March 17, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MTDR Matador Resources Co Stock $mtdr

2012 Q4 Form 10-K Financial Statement

#000152000614000017 Filed on March 17, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MTDR
Matador Resources Co Stock $mtdr