16-32237 . on september 28 , 2016 , the bankruptcy court entered the confirmation order , which approved and confirmed the plan . on the effective date , we satisfied the conditions to effectiveness set forth in the confirmation order and in the plan , and the plan therefore became effective in accordance with its terms and we emerged from bankruptcy . further information is set forth in note 2. emergence from voluntary reorganization under chapter 11 proceedings in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k. 42 fresh start accounting upon our emergence on the effective date , we adopted fresh start accounting as required by us gaap . we qualified for fresh start accounting because ( i ) the holders of existing voting shares of the pre-emergence debtor-in-possession received less than 50 % of the voting shares of the post-emergence successor entity and ( ii ) the reorganization value of our assets immediately prior to confirmation was less than the post-petition liabilities and allowed claims . as discussed in note 3. fresh start accounting in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k , we applied fresh start accounting as of october 21 , 2016. adopting fresh start accounting results in a new reporting entity for financial reporting purposes with no beginning retained earnings or deficit . the cancellation of all existing shares outstanding on the effective date and issuance of new shares in the reorganized company caused a related change of control under us gaap . as a result of the application of fresh start accounting , as well as the effects of the implementation of the plan , our consolidated financial statements on or after october 21 , 2016 , are not comparable with our consolidated financial statements prior to that date . stock listing our common stock was listed on the nyse on april 25 , 2012 through february 3 , 2016 under the symbol mpo . on february 3 , 2016 , our stock was delisted by the nyse and began trading on the otc pink market under the symbol mpoy through october 21 , 2016. on october 21 , 2016 , in connection with our emergence from chapter 11 , our existing common shares traded under the symbol mpoy were cancelled . on october 24 , 2016 , our newly issued shares of common stock in the reorganized equity were listed and began trading on the nyse mkt under the symbol mpo . on may 4 , 2017 , our common stock began trading on the nyse under the symbol mpo . results of operations oil , ngls and natural gas revenue oil , ngls and natural gas our revenues are derived from the sale of oil and natural gas production , as well as the sale of ngls that are extracted from our high btu content natural gas . our oil and natural gas revenues do not include the effects of derivatives and may vary significantly from period to period as a result of changes in production volumes or commodity prices . prices for oil , ngls and natural gas fluctuate widely and affect : · the amount of our cash flows available for capital expenditures ; · our ability to borrow and raise additional capital ; · the quantity of oil , ngls and natural gas we can economically produce ; and · our revenues and profitability . average market prices for oil and ngls have historically experienced significant volatility . for a description of factors that may impact future commodity prices , please read risk factorsrisks related to the oil and natural gas industry and our business . beginning january 1 , 2018 , financial accounting standards board ( fasb ) accounting standards update ( asu ) 2014-09 becomes effective for us . see critical accounting policies and estimates below as well as recent accounting pronouncements in note 4. summary of significant accounting policies in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k , for year ended december 31 , 2017 for further discussion of anticipated updates to our revenues under fasb accounting standards codification ( asc ) 606 . 43 the following table sets forth information regarding our oil , ngls and natural gas revenues for the year ended december 31 , 2017 , the successor period , the predecessor period and the year ended december 31 , 2015 ( in thousands ) : replace_table_token_15_th oil , ngls and natural gas pricing the following table sets forth information regarding average realized sales prices for the year ended december 31 , 2017 , the successor period , the predecessor period and the year ended december 31 , 2015 : replace_table_token_16_th crude oil prices the majority of our crude oil production is sold at prevailing market prices with an adjustment for transportation and quality . the market pricing for oil fluctuates in response to many factors that are outside of our control such as supply and demand fluctuations , pipeline and refinery outages , weather patterns and global events and economics . we currently utilize fixed price swaps , collars and three-way collars to manage the impact of changing crude prices . we did not have any open commodity derivative contract positions at december 31 , 2016 or 2015 . 44 as of december 31 , 2017 , we had the following oil derivative contracts that extend through december 2019 , which are summarized as follows : replace_table_token_17_th ( 1 ) positions shown represent open commodity derivative contract positions as of december 31 , 2017 . story_separator_special_tag after the 48-month incentive period ends , the tax rate on such wells increases to 7.0 % . the new 4.0 % tax rate on these wells went into effect on july 1 , 2017 and caused our average production tax rate to trend higher in 2017 compared to 2016 and 2015. additionally , in november 2017 , new legislation was signed into law in oklahoma that increased the 4 % tax rate to 7 % effective with december 2017 production . 51 successor period for the successor period , our severance and other tax expenses were $ 1.3 million or 2.7 % of sales . severance tax was $ 1.1 million or 2.3 % of sales during the successor period . predecessor period for the predecessor period , our severance and other tax expenses were $ 5.2 million or 2.8 % of sales . severance tax was $ 4.1 million or 2.2 % of sales during the predecessor period . year ended december 31 , 2015 for the year ended december 31 , 2015 , our severance and other tax expenses were $ 8.6 million or 2.7 % of sales . severance tax was $ 5.8 million or 1.8 % of sales during the year ended december 31 , 2015. depreciation , depletion and amortization ( dd & a ) under the full cost accounting method , we capitalize costs within a cost center and systematically expense those costs on a unit of production basis based on proved oil and natural gas reserve quantities . we calculate depletion on the following types of costs : ( i ) all capitalized costs , other than the cost of investments in unproved properties which remain to be evaluated , less accumulated amortization ; ( ii ) estimated future expenditures to be incurred in developing proved reserves ; and ( iii ) estimated dismantlement and abandonment costs , net of any associated salvage value . year ended december 31 , 2017 for the year ended december 31 , 2017 , our dd & a expenses were $ 65.8 million at a cost of $ 8.14 per boe . successor period for the successor period , our dd & a expenses were $ 13.0 million at a cost of $ 7.22 per boe . predecessor period for the predecessor period , our dd & a expenses were $ 62.3 million at a cost of $ 7.11 per boe . year ended december 31 , 2015 for the year ended december 31 , 2015 , our dd & a expenses were $ 198.6 million at a cost of $ 16.55 per boe . impairment of oil and gas properties under the full cost method of accounting , we are required to perform a full-cost ceiling test on a quarterly basis . the test establishes a limit ( ceiling ) on the book value of oil and gas properties . the capitalized costs of proved oil and gas properties , net of accumulated dd & a and the related deferred income taxes , may not exceed this ceiling. the ceiling limitation is equal to the sum of : ( i ) the present value of estimated future net revenues from the projected production of proved oil and gas reserves , excluding future cash outflows associated with settling asset retirement obligations accrued on the balance sheet , calculated using the average oil and natural gas sales price we received as of the first trading day of each month over the preceding twelve months ( such average price is held constant throughout the life of the properties ) and a discount factor of 10 % ; ( ii ) the cost of unproved and unevaluated properties excluded from the costs being amortized ; ( iii ) the lower of cost or estimated fair value of unproved properties included in the costs being amortized ; and ( iv ) related income tax effects . if capitalized costs exceed this ceiling , the excess is charged to impairment expense in the accompanying consolidated statements of operations . year ended december 31 , 2017 on november 1 , 2017 , david sambrooks was appointed president and chief executive officer of the company . upon david 's appointment , we began a strategic review of all areas of operations . this review was completed during the fourth quarter of 2017 and our strategy was refined to add further focus to optimizing free cash flows and keeping leverage to a minimum . as a result , in december of 2017 we decreased our current drilling activity from two drilling rigs to one drilling rig . further , the five-year development plan was revised from a two-rig program to a one rig program . this change in strategy ( reduced 5-year drilling activity ) led to a reduction in our undeveloped proved inventory under sec guidelines from 274 locations at year end 2016 to 139 locations at year end 2017. in addition , at year end 2017 our proved undeveloped type curve was revised downward by our third-party reserves engineering firm and capital costs assumptions were revised upward , 52 both as a result of recent drilling results . the revised type curve still generates attractive capital returns of 30.6 % irr at year-end 2017 sec pricing , and 39.1 % irr at december 31 , 2017 strip pricing . as a result of our focus on optimizing free cash flow , keeping leverage to a minimum and optimizing drilling returns , all proved undeveloped reserves included in the december 31 , 2017 reserve report are focused on infill drilling in the carmen and dacoma areas . all undeveloped locations not able to be drilled utilizing our anticipated five-year development schedule were excluded from the december 31 , 2017 reserve report but continue to meet the definition of a proved undeveloped location from an engineering standpoint . we recorded an impairment of oil and gas properties of $ 125.3 million primarily as a

debt restructuring costs and advisory fees debt restructuring costs and advisory fees include costs incurred for legal , financing and advisor costs associated with specific transactions , such as troubled debt restructuring , or costs incurred prior to the petition date . year ended december 31 , 2017 for the year ended december 31 , 2017 , we did not incur any debt restructuring costs and advisory fees . successor period for the successor period , we did not incur any debt restructuring costs and advisory fees . predecessor period for the predecessor period , we incurred $ 7.6 million of debt restructuring costs and advisory fees related to our bankruptcy and restructuring process prior to the petition date . year ended december 31 , 2015 during the 2015 period , we engaged various advisors to assist us in analyzing options to improve our financial flexibility and provide additional long-term liquidity . for the year ended december 31 , 2015 , we incurred approximately $ 36.1 million in fees associated with these advisors as well as issuance costs associated with the second lien notes offering and third lien notes exchange . 54 other other expense consists of , among other things , losses on disposal of , or market value adjustments to , field equipment inventory , penalties on early termination of drilling contracts and other miscellaneous expense items . year ended december 31 , 2017 for the year ended december 31 , 2017 , we did not incur any other expenses . successor period for the successor period , we did not incur any other expenses . predecessor period for the predecessor period , we did not incur any other expenses . year ended december 31 , 2015 for the year ended december 31 , 2015 , we incurred other expenses of $ 2.1 million related to the loss on disposal of , or market value adjustments to , field equipment inventory deemed no longer useful to current operations . other income/expense replace_table_token_22_th interest expense prior to the effective date , we had substantial long-term debt in the form of our 2020 senior notes , 2021 senior notes , second lien notes and third lien notes .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```debt restructuring costs and advisory fees debt restructuring costs and advisory fees include costs incurred for legal , financing and advisor costs associated with specific transactions , such as troubled debt restructuring , or costs incurred prior to the petition date . year ended december 31 , 2017 for the year ended december 31 , 2017 , we did not incur any debt restructuring costs and advisory fees . successor period for the successor period , we did not incur any debt restructuring costs and advisory fees . predecessor period for the predecessor period , we incurred $ 7.6 million of debt restructuring costs and advisory fees related to our bankruptcy and restructuring process prior to the petition date . year ended december 31 , 2015 during the 2015 period , we engaged various advisors to assist us in analyzing options to improve our financial flexibility and provide additional long-term liquidity . for the year ended december 31 , 2015 , we incurred approximately $ 36.1 million in fees associated with these advisors as well as issuance costs associated with the second lien notes offering and third lien notes exchange . 54 other other expense consists of , among other things , losses on disposal of , or market value adjustments to , field equipment inventory , penalties on early termination of drilling contracts and other miscellaneous expense items . year ended december 31 , 2017 for the year ended december 31 , 2017 , we did not incur any other expenses . successor period for the successor period , we did not incur any other expenses . predecessor period for the predecessor period , we did not incur any other expenses . year ended december 31 , 2015 for the year ended december 31 , 2015 , we incurred other expenses of $ 2.1 million related to the loss on disposal of , or market value adjustments to , field equipment inventory deemed no longer useful to current operations . other income/expense replace_table_token_22_th interest expense prior to the effective date , we had substantial long-term debt in the form of our 2020 senior notes , 2021 senior notes , second lien notes and third lien notes .
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 Suspicious Activity Report : 16-32237 . on september 28 , 2016 , the bankruptcy court entered the confirmation order , which approved and confirmed the plan . on the effective date , we satisfied the conditions to effectiveness set forth in the confirmation order and in the plan , and the plan therefore became effective in accordance with its terms and we emerged from bankruptcy . further information is set forth in note 2. emergence from voluntary reorganization under chapter 11 proceedings in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k. 42 fresh start accounting upon our emergence on the effective date , we adopted fresh start accounting as required by us gaap . we qualified for fresh start accounting because ( i ) the holders of existing voting shares of the pre-emergence debtor-in-possession received less than 50 % of the voting shares of the post-emergence successor entity and ( ii ) the reorganization value of our assets immediately prior to confirmation was less than the post-petition liabilities and allowed claims . as discussed in note 3. fresh start accounting in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k , we applied fresh start accounting as of october 21 , 2016. adopting fresh start accounting results in a new reporting entity for financial reporting purposes with no beginning retained earnings or deficit . the cancellation of all existing shares outstanding on the effective date and issuance of new shares in the reorganized company caused a related change of control under us gaap . as a result of the application of fresh start accounting , as well as the effects of the implementation of the plan , our consolidated financial statements on or after october 21 , 2016 , are not comparable with our consolidated financial statements prior to that date . stock listing our common stock was listed on the nyse on april 25 , 2012 through february 3 , 2016 under the symbol mpo . on february 3 , 2016 , our stock was delisted by the nyse and began trading on the otc pink market under the symbol mpoy through october 21 , 2016. on october 21 , 2016 , in connection with our emergence from chapter 11 , our existing common shares traded under the symbol mpoy were cancelled . on october 24 , 2016 , our newly issued shares of common stock in the reorganized equity were listed and began trading on the nyse mkt under the symbol mpo . on may 4 , 2017 , our common stock began trading on the nyse under the symbol mpo . results of operations oil , ngls and natural gas revenue oil , ngls and natural gas our revenues are derived from the sale of oil and natural gas production , as well as the sale of ngls that are extracted from our high btu content natural gas . our oil and natural gas revenues do not include the effects of derivatives and may vary significantly from period to period as a result of changes in production volumes or commodity prices . prices for oil , ngls and natural gas fluctuate widely and affect : · the amount of our cash flows available for capital expenditures ; · our ability to borrow and raise additional capital ; · the quantity of oil , ngls and natural gas we can economically produce ; and · our revenues and profitability . average market prices for oil and ngls have historically experienced significant volatility . for a description of factors that may impact future commodity prices , please read risk factorsrisks related to the oil and natural gas industry and our business . beginning january 1 , 2018 , financial accounting standards board ( fasb ) accounting standards update ( asu ) 2014-09 becomes effective for us . see critical accounting policies and estimates below as well as recent accounting pronouncements in note 4. summary of significant accounting policies in the notes to the consolidated financial statements set forth in part iv , item 15 of this annual report on form 10-k , for year ended december 31 , 2017 for further discussion of anticipated updates to our revenues under fasb accounting standards codification ( asc ) 606 . 43 the following table sets forth information regarding our oil , ngls and natural gas revenues for the year ended december 31 , 2017 , the successor period , the predecessor period and the year ended december 31 , 2015 ( in thousands ) : replace_table_token_15_th oil , ngls and natural gas pricing the following table sets forth information regarding average realized sales prices for the year ended december 31 , 2017 , the successor period , the predecessor period and the year ended december 31 , 2015 : replace_table_token_16_th crude oil prices the majority of our crude oil production is sold at prevailing market prices with an adjustment for transportation and quality . the market pricing for oil fluctuates in response to many factors that are outside of our control such as supply and demand fluctuations , pipeline and refinery outages , weather patterns and global events and economics . we currently utilize fixed price swaps , collars and three-way collars to manage the impact of changing crude prices . we did not have any open commodity derivative contract positions at december 31 , 2016 or 2015 . 44 as of december 31 , 2017 , we had the following oil derivative contracts that extend through december 2019 , which are summarized as follows : replace_table_token_17_th ( 1 ) positions shown represent open commodity derivative contract positions as of december 31 , 2017 . story_separator_special_tag after the 48-month incentive period ends , the tax rate on such wells increases to 7.0 % . the new 4.0 % tax rate on these wells went into effect on july 1 , 2017 and caused our average production tax rate to trend higher in 2017 compared to 2016 and 2015. additionally , in november 2017 , new legislation was signed into law in oklahoma that increased the 4 % tax rate to 7 % effective with december 2017 production . 51 successor period for the successor period , our severance and other tax expenses were $ 1.3 million or 2.7 % of sales . severance tax was $ 1.1 million or 2.3 % of sales during the successor period . predecessor period for the predecessor period , our severance and other tax expenses were $ 5.2 million or 2.8 % of sales . severance tax was $ 4.1 million or 2.2 % of sales during the predecessor period . year ended december 31 , 2015 for the year ended december 31 , 2015 , our severance and other tax expenses were $ 8.6 million or 2.7 % of sales . severance tax was $ 5.8 million or 1.8 % of sales during the year ended december 31 , 2015. depreciation , depletion and amortization ( dd & a ) under the full cost accounting method , we capitalize costs within a cost center and systematically expense those costs on a unit of production basis based on proved oil and natural gas reserve quantities . we calculate depletion on the following types of costs : ( i ) all capitalized costs , other than the cost of investments in unproved properties which remain to be evaluated , less accumulated amortization ; ( ii ) estimated future expenditures to be incurred in developing proved reserves ; and ( iii ) estimated dismantlement and abandonment costs , net of any associated salvage value . year ended december 31 , 2017 for the year ended december 31 , 2017 , our dd & a expenses were $ 65.8 million at a cost of $ 8.14 per boe . successor period for the successor period , our dd & a expenses were $ 13.0 million at a cost of $ 7.22 per boe . predecessor period for the predecessor period , our dd & a expenses were $ 62.3 million at a cost of $ 7.11 per boe . year ended december 31 , 2015 for the year ended december 31 , 2015 , our dd & a expenses were $ 198.6 million at a cost of $ 16.55 per boe . impairment of oil and gas properties under the full cost method of accounting , we are required to perform a full-cost ceiling test on a quarterly basis . the test establishes a limit ( ceiling ) on the book value of oil and gas properties . the capitalized costs of proved oil and gas properties , net of accumulated dd & a and the related deferred income taxes , may not exceed this ceiling. the ceiling limitation is equal to the sum of : ( i ) the present value of estimated future net revenues from the projected production of proved oil and gas reserves , excluding future cash outflows associated with settling asset retirement obligations accrued on the balance sheet , calculated using the average oil and natural gas sales price we received as of the first trading day of each month over the preceding twelve months ( such average price is held constant throughout the life of the properties ) and a discount factor of 10 % ; ( ii ) the cost of unproved and unevaluated properties excluded from the costs being amortized ; ( iii ) the lower of cost or estimated fair value of unproved properties included in the costs being amortized ; and ( iv ) related income tax effects . if capitalized costs exceed this ceiling , the excess is charged to impairment expense in the accompanying consolidated statements of operations . year ended december 31 , 2017 on november 1 , 2017 , david sambrooks was appointed president and chief executive officer of the company . upon david 's appointment , we began a strategic review of all areas of operations . this review was completed during the fourth quarter of 2017 and our strategy was refined to add further focus to optimizing free cash flows and keeping leverage to a minimum . as a result , in december of 2017 we decreased our current drilling activity from two drilling rigs to one drilling rig . further , the five-year development plan was revised from a two-rig program to a one rig program . this change in strategy ( reduced 5-year drilling activity ) led to a reduction in our undeveloped proved inventory under sec guidelines from 274 locations at year end 2016 to 139 locations at year end 2017. in addition , at year end 2017 our proved undeveloped type curve was revised downward by our third-party reserves engineering firm and capital costs assumptions were revised upward , 52 both as a result of recent drilling results . the revised type curve still generates attractive capital returns of 30.6 % irr at year-end 2017 sec pricing , and 39.1 % irr at december 31 , 2017 strip pricing . as a result of our focus on optimizing free cash flow , keeping leverage to a minimum and optimizing drilling returns , all proved undeveloped reserves included in the december 31 , 2017 reserve report are focused on infill drilling in the carmen and dacoma areas . all undeveloped locations not able to be drilled utilizing our anticipated five-year development schedule were excluded from the december 31 , 2017 reserve report but continue to meet the definition of a proved undeveloped location from an engineering standpoint . we recorded an impairment of oil and gas properties of $ 125.3 million primarily as a

