XML 62 R5.htm IDEA: XBRL DOCUMENT v2.4.1.9
CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)
In Thousands, unless otherwise specified
Series A Preferred Stock
Common Stock
Treasury Stock
Additional Paid-in-Capital
Retained Deficit/Accumulated Loss
Total
Balance at Dec. 31, 2013 $ 3us-gaap_StockholdersEquity
/ us-gaap_StatementClassOfStockAxis
= mpo_MandatoryConvertiblePreferredStockMember
$ 689us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ (664)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
$ 871,047us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (531,076)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 339,999us-gaap_StockholdersEquity
Increase (Decrease) in Stockholders' Equity            
Share-based compensation   16us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  2,049us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
  2,065us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
Acquisition of treasury stock     (649)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
    (649)us-gaap_TreasuryStockValueAcquiredCostMethod
Net loss         (83,645)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(83,645)us-gaap_NetIncomeLoss
Balance at Mar. 31, 2014 3us-gaap_StockholdersEquity
/ us-gaap_StatementClassOfStockAxis
= mpo_MandatoryConvertiblePreferredStockMember
705us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(1,313)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
873,096us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(614,721)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
257,770us-gaap_StockholdersEquity
Balance at Dec. 31, 2014 3us-gaap_StockholdersEquity
/ us-gaap_StatementClassOfStockAxis
= mpo_MandatoryConvertiblePreferredStockMember
704us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(2,592)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
881,894us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(414,147)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
465,862us-gaap_StockholdersEquity
Increase (Decrease) in Stockholders' Equity            
Share-based compensation   20us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  1,283us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
  1,303us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
Acquisition of treasury stock     (305)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
    (305)us-gaap_TreasuryStockValueAcquiredCostMethod
Net loss         (193,554)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(193,554)us-gaap_NetIncomeLoss
Balance at Mar. 31, 2015 $ 3us-gaap_StockholdersEquity
/ us-gaap_StatementClassOfStockAxis
= mpo_MandatoryConvertiblePreferredStockMember
$ 724us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ (2,897)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
$ 883,177us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (607,701)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 273,306us-gaap_StockholdersEquity