XML 132 R118.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Supplementary Statistics - Operating Statistics (Detail) bbl / d in Thousands, gal in Millions, CFPD in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 USD ($) Store bbl / d CFPD $ / gal $ / bbl gal | Mar. 31, 2016 USD ($) Store bbl / d CFPD $ / gal $ / bbl gal
Operating Statistics [Line Items ] |  |  |  |
MPC Consolidated Refined Product Sales Volumes (thousands of barrels per day) | [1] | 2,085 |  | 2,158
Refining & Marketing |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refining & Marketing refined product sales volume (thousands of barrels per day) | [2] | 2,070 |  | 2,148
Refining & Marketing gross margin (dollars per barrel) | $ / bbl | [3],[4] | 11.65 |  | 9.87
Crude oil capacity utilization percent | [5] | 83.00% |  | 89.00%
Refinery throughputs (thousands of barrels per day) | [6] | 1,708 |  | 1,774
Sour crude oil throughput percent |  | 67.00% |  | 61.00%
WTI-priced crude oil throughput percent |  | 15.00% |  | 18.00%
Refined product yields (thousands of barrels per day) | [6] | 1,748 |  | 1,810
Inter-refinery transfers |  | 55 |  | 82
Refinery direct operating costs (dollars per barrel): |  |  |  |
Planned turnaround and major maintenance | $ / bbl | [7] | 3.10 |  | 2.43
Depreciation and amortization | $ / bbl | [7] | 1.63 |  | 1.54
Other manufacturing | $ / bbl | [7],[8] | 4.72 |  | 4.14
Total | $ / bbl | [7] | 9.45 |  | 8.11
Refining & Marketing | Crude oil refined |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [6] | 1,511 |  | 1,603
Refining & Marketing | Other charge and blendstocks |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [6] | 197 |  | 171
Refining & Marketing | Gasoline |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 867 |  | 899
Refining & Marketing | Distillates |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 544 |  | 571
Refining & Marketing | Propane |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 28 |  | 32
Refining & Marketing | Feedstocks and special products |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 224 |  | 234
Refining & Marketing | Heavy fuel oil |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 29 |  | 30
Refining & Marketing | Asphalt |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [6] | 56 |  | 44
Refining & Marketing | Gulf Coast: |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 1,072 |  | 1,208
Sour crude oil throughput percent |  | 84.00% |  | 75.00%
WTI-priced crude oil throughput percent |  | 4.00% |  | 3.00%
Refined product yields (thousands of barrels per day) | [9] | 1,104 |  | 1,239
Refinery direct operating costs (dollars per barrel): |  |  |  |
Planned turnaround and major maintenance | $ / bbl | [7] | 4.31 |  | 2.62
Depreciation and amortization | $ / bbl | [7] | 1.35 |  | 1.17
Other manufacturing | $ / bbl | [7],[8] | 4.62 |  | 3.74
Total | $ / bbl | [7] | 10.28 |  | 7.53
Refining & Marketing | Gulf Coast: | Crude oil refined |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 850 |  | 991
Refining & Marketing | Gulf Coast: | Other charge and blendstocks |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 222 |  | 217
Refining & Marketing | Gulf Coast: | Gasoline |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 499 |  | 533
Refining & Marketing | Gulf Coast: | Distillates |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 309 |  | 375
Refining & Marketing | Gulf Coast: | Propane |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 21 |  | 25
Refining & Marketing | Gulf Coast: | Feedstocks and special products |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 243 |  | 280
Refining & Marketing | Gulf Coast: | Heavy fuel oil |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 18 |  | 18
Refining & Marketing | Gulf Coast: | Asphalt |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 14 |  | 8
Refining & Marketing | Midwest: |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 691 |  | 648
Sour crude oil throughput percent |  | 45.00% |  | 39.00%
WTI-priced crude oil throughput percent |  | 29.00% |  | 42.00%
Refined product yields (thousands of barrels per day) | [9] | 699 |  | 653
Refinery direct operating costs (dollars per barrel): |  |  |  |
Planned turnaround and major maintenance | $ / bbl | [7] | 0.98 |  | 1.76
Depreciation and amortization | $ / bbl | [7] | 1.93 |  | 2.03
Other manufacturing | $ / bbl | [7],[8] | 4.50 |  | 4.36
Total | $ / bbl | [7] | 7.41 |  | 8.15
Refining & Marketing | Midwest: | Crude oil refined |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 661 |  | 612
Refining & Marketing | Midwest: | Other charge and blendstocks |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refinery throughputs (thousands of barrels per day) | [9] | 30 |  | 36
Refining & Marketing | Midwest: | Gasoline |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 368 |  | 366
Refining & Marketing | Midwest: | Distillates |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 235 |  | 196
Refining & Marketing | Midwest: | Propane |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 8 |  | 9
Refining & Marketing | Midwest: | Feedstocks and special products |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 35 |  | 34
Refining & Marketing | Midwest: | Heavy fuel oil |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 11 |  | 12
Refining & Marketing | Midwest: | Asphalt |  |  |  |
Refining & Marketing Operating Statistics |  |  |  |
Refined product yields (thousands of barrels per day) | [9] | 42 |  | 36
Speedway |  |  |  |
Speedway Operating Statistics(j) |  |  |  |
Convenience stores at period-end | Store |  | 2,731 | [10] | 2,771
Gasoline and distillate sales (millions of gallons) | gal |  | 1,393 | [10] | 1,483
Gasoline and distillate gross margin (dollars per gallon) | $ / gal | [11] | 0.1566 | [10] | 0.1682
Merchandise sales (in millions) | $ |  | $ 1,127 | [10] | $ 1,152
Merchandise gross margin (in millions) | $ |  | $ 320 | [10] | $ 330
Merchandise margin percent |  | 28.40% | [10] | 28.60%
Same store gasoline sales volume (period over period) percentage |  | (1.00%) |  | 1.00%
Merchandise sales excluding cigarettes (period over period) percentage | [12] | 2.10% |  | 3.10%
Midstream |  |  |  |
Midstream Operating Statistics |  |  |  |
Crude oil and refined product pipeline throughputs (thousands of barrels per day) | [13] | 2,888 |  | 2,818
Terminal throughput (thousands of barrels per day) | [14] | 59,793 |  | 0
Gathering system throughput (MMcf/d) | CFPD | [15] | 3,184 |  | 3,345
Natural gas processed (MMcf/d) | CFPD | [15] | 6,132 |  | 5,636
C2 and NGLs fractionated (thousands barrels per day) | [15] | 367 |  | 321
[1] | Total average daily volumes of refined product sales to wholesale, branded and retail customers.
[2] | Includes intersegment sales.
[3] | Excludes LCM inventory valuation charge for the first quarter of 2016. Comparable prior period information for gross margin has been recast in connection with the contribution of certain pipeline assets to MPLX on March 1, 2017.
[4] | Sales revenue less cost of refinery inputs and purchased products, divided by total refinery throughputs.
[5] | Based on calendar day capacity, which is an annual average that includes downtime for planned maintenance and other normal operating activities.
[6] | Excludes inter-refinery volumes of 55 mbpd and 82 mbpd for the three months ended March 31, 2017 and 2016, respectively
[7] | Per barrel of total refinery throughputs.
[8] | Includes utilities, labor, routine maintenance and other operating costs.
[9] | Includes inter-refinery transfer volumes.
[10] | 41 travel centers contributed to PFJ Southeast, whereas they are reflected in the first quarter 2016 operating statistics.
[11] | The price paid by consumers less the cost of refined products, including transportation, consumer excise taxes and bankcard processing fees, divided by gasoline and distillate sales volume.
[12] | Excludes cigarettes.
[13] | common-carrier pipelines and private pipelines contributed to MPLX, excluding equity method investments.
[14] | {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOmE1MDk1YjE0ZDVlMTQ1YTk5Y2EzMWY0N2MxN2U3ZTA3fFRleHRTZWxlY3Rpb246RkRFNkFFNzE1MDNGNTU0OEE3OTY5MDk0NjIwNkFENUEM}
[15] | Includes amounts related to unconsolidated equity method investments on a 100 percent basis.

X
- Definition C2 and NGLs Fractionated + References No definition available. + Details
Name: | mpc_C2andNGLsFractionated
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Consolidated Refined Product Sales Volumes + References No definition available. + Details
Name: | mpc_ConsolidatedRefinedProductSalesVolumes
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Depreciation and amortization expenses. + References No definition available. + Details
Name: | mpc_DepreciationAndAmortizationExpensePerBarrel
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total of all direct operating costs per barrel. Includes turnaround and major maintenance, depreciation and amortization and other direct operating costs. + References No definition available. + Details
Name: | mpc_DirectOperatingCostsPerBarrel
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gasoline and Distillates Gross Margin + References No definition available. + Details
Name: | mpc_GasolineAndDistillatesGrossMargin
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gasoline and Distillates Sales + References No definition available. + Details
Name: | mpc_GasolineAndDistillatesSales
Namespace Prefix: | mpc_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gathering System Throughput + References No definition available. + Details
Name: | mpc_GatheringSystemThroughput
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inter-refinery transfers + References No definition available. + Details
Name: | mpc_Interrefinerytransfers
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Merchandise Gross Profit + References No definition available. + Details
Name: | mpc_MerchandiseGrossProfit
Namespace Prefix: | mpc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Merchandise margin percent - merchandise margin divided by merchandise sales + References No definition available. + Details
Name: | mpc_Merchandisemarginpercent
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Natural Gas Processed + References No definition available. + Details
Name: | mpc_NaturalGasProcessed
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating Statistics [Line Items ] + References No definition available. + Details
Name: | mpc_OperatingStatisticsLineItems
Namespace Prefix: | mpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Manufacturing Costs Per Barrel + References No definition available. + Details
Name: | mpc_OtherManufacturingCostsPerBarrel
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of crude oil capacity utilization. + References No definition available. + Details
Name: | mpc_PercentageOfCrudeOilCapacityUtilization
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Pipeline Barrels Handled + References No definition available. + Details
Name: | mpc_PipelineBarrelsHandled
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Pipeline Operating Statistics [Abstract] + References No definition available. + Details
Name: | mpc_PipelineOperatingStatisticsAbstract
Namespace Prefix: | mpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refined Product Yields + References No definition available. + Details
Name: | mpc_RefinedProductYields
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refinery Direct Operating Costs in Refining & Marketing Gross Margin (dollars per barrel): [Abstract] + References No definition available. + Details
Name: | mpc_RefineryDirectOperatingCostsinRefiningMarketingGrossMargindollarsperbarrelAbstract
Namespace Prefix: | mpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refinery Runs + References No definition available. + Details
Name: | mpc_RefineryRuns
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refining and Marketing Gross Margin + References No definition available. + Details
Name: | mpc_RefiningAndMarketingGrossMargin
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refining and Marketing Sales Volumes + References No definition available. + Details
Name: | mpc_RefiningAndMarketingSalesVolumes
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refining & Marketing Operating Statistics [Abstract] + References No definition available. + Details
Name: | mpc_RefiningMarketingOperatingStatisticsAbstract
Namespace Prefix: | mpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Same store gasoline sales volume increase (decrease) compared to prior period - percentage. Same Store refers to stores that were owned in both periods of comparison. + References No definition available. + Details
Name: | mpc_SameStoreGasolineSalesVolumeIncreaseDecreasePercentage
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Same store merchandise sales excluding cigarettes increase (decrease) compared to prior period - percentage. Same Store refers to stores that were owned in both periods of comparison. + References No definition available. + Details
Name: | mpc_SameStoreMerchandiseSalesExcludingCigarettesIncreaseDecreasePercentage
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sour Crude Oil Throughput percent + References No definition available. + Details
Name: | mpc_SourCrudeOilThroughputpercent
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Speedway Operating Statistics [Abstract] + References No definition available. + Details
Name: | mpc_SpeedwayOperatingStatisticsAbstract
Namespace Prefix: | mpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Terminal Throughput + References No definition available. + Details
Name: | mpc_TerminalThroughput
Namespace Prefix: | mpc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Turnaround Maintenance And Engineered Project Expenses Per Barrel + References No definition available. + Details
Name: | mpc_TurnaroundMaintenanceAndEngineeredProjectExpensesPerBarrel
Namespace Prefix: | mpc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition WTI-Priced Crude Oil Throughput percent + References No definition available. + Details
Name: | mpc_WTIPricedCrudeOilThroughputpercent
Namespace Prefix: | mpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueGoodsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mpc_RefiningAndMarketingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=us-gaap_CrudeOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_OtherChargeAndBlendstockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_GasolineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_DistillatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_PropaneMPCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_FeedstocksandSpecialProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_HeavyFuelOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=mpc_AsphaltMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=mpc_GulfCoastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=mpc_MidwestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mpc_SpeedwayMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mpc_MidstreamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |