Item 2. Properties

We believe that our properties and facilities are adequate for our operations and that our facilities are adequately maintained. See the following sections for details of our assets by segment.

REFINING & MARKETING

The table below sets forth the location and crude oil refining capacity for each of our refineries as of December 31, 2023. Refining throughput can exceed crude oil refining capacity due to the processing of other charge and blendstocks in addition to crude oil and the timing of planned turnaround and major maintenance activity.

Refinery						Crude Oil Refining Capacity (mbpcd)
Gulf Coast Region
Galveston Bay, Texas City, Texas						631
Garyville, Louisiana						597
Subtotal Gulf Coast region						1,228
Mid-Continent Region
Catlettsburg, Kentucky						300
Robinson, Illinois						253
Detroit, Michigan						140
El Paso, Texas						133
St. Paul Park, Minnesota						105
Canton, Ohio						100
Mandan, North Dakota						71
Salt Lake City, Utah						68
Subtotal Mid-Continent region						1,170
West Coast Region
Los Angeles, California						365
Anacortes, Washington						119
Kenai, Alaska						68
Subtotal West Coast region						552
Total						2,950

The Dickinson, North Dakota, renewable fuels facility has the capacity to produce 184 million gallons per year of renewable diesel from corn oil, soybean oil, fats and greases. The design capacity of the Martinez facility, a renewable diesel facility, is up to 730 million gallons per year. The Dickinson facility is included within the Mid-Continent region and the Martinez facility is included within the West Coast region.

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The following table sets forth the approximate number of locations where jobbers maintain branded outlets, marketing fuels under the Marathon, ARCO, Shell, Mobil, Tesoro and other brands, as of December 31, 2023.

Location						Number of Branded Outlets
Alabama						400
Alaska						48
Arizona						78
California						111
Colorado						12
District of Columbia						2
Florida						622
Georgia						414
Idaho						106
Illinois						165
Indiana						654
Iowa						4
Kentucky						492
Louisiana						62
Maryland						61
Massachusetts						1
Mexico						269
Michigan						720
Minnesota						297
Mississippi						133
Missouri						4
Nevada						18
New Jersey						4
New Mexico						40
New York						74
North Carolina						220
North Dakota						120
Ohio						841
Oregon						43
Pennsylvania						83
Rhode Island						3
South Carolina						104
South Dakota						32
Tennessee						385
Texas						12
Utah						109
Virginia						199
Washington						106
West Virginia						113
Wisconsin						52
Wyoming						4
Total						7,217

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The Refining & Marketing segment sells transportation fuels through long-term fuel supply contracts to direct dealer locations, primarily under the ARCO brand. The following table sets forth the number of direct dealer locations by state as of December 31, 2023.

Location						Number of Locations
Arizona						68
California						952
Nevada						93
New Mexico						1
Total						1,114

The following table sets forth details about our Refining & Marketing owned and operated terminals as of December 31, 2023. See the Midstream - MPLX section for information with respect to MPLX owned and operated terminals.

Owned and Operated Terminals						Number of Terminals						Tank Storage Capacity (thousand barrels)
Light Products Terminals:
Alaska						1						231
New York						1						334
Subtotal light products terminals						2						565
Asphalt Terminals:
Florida						1						263
Indiana						1						121
Kentucky						4						549
Louisiana						1						54
Michigan						1						12
New York						1						417
Ohio						4						2,207
Pennsylvania						1						451
Tennessee						2						480
Subtotal asphalt terminals						16						4,554
Total owned and operated terminals						18						5,119

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MIDSTREAM - MPLX

The following table sets forth certain information relating to MPLX’s crude oil and refined products pipeline systems and storage assets as of December 31, 2023.

Pipeline System or Storage Asset									Diameter (inches)						Length (miles)						Capacity
Total crude oil pipeline systems(a)(b)									2" - 42"						5,159						Various
Total refined products pipeline systems(a)(b)(c)									4" - 36"						3,788						Various
Barge Docks (mbpd)																					4,859
Storage assets: (mbbls)
Refining Logistics(d)																					92,719
Tank Farms																					33,452
Caverns																					3,632

(a) Includes approximately 16 miles of crude oil pipeline and 2 miles of refined product pipeline leased from third parties.

(b) Includes approximately 1,192 miles of inactive crude oil pipeline and 201 miles of inactive refined product pipeline.

(c) Includes approximately 87 miles and 17 miles of refined product pipelines in which MPLX has partial ownership of 65% and 50%, respectively.

(d) Refining logistics assets primarily include tankage. MPC formed the Martinez Renewables joint venture and began producing renewable diesel at the Martinez facility in 2023. MPLX owns refining logistics assets with 5,977 mbbls of storage capacity associated with the facility and has entered into terminalling and storage service agreements with the joint venture and its partners to provide logistics services for the facility.

The following table sets forth information regarding the pipeline systems which MPLX has an interest in through ownership of its equity method investments as of December 31, 2023.

						Diameter (inches)						Length (miles)						Ownership Percentage
Crude Oil Systems:
MarEn Bakken Company LLC(a)						30"						1,916						25		%
Minnesota Pipe Line Company LLC						16" - 24"						975						17		%
Wink to Webster Holdings LLC(b)						24" - 36"						652						50		%
Illinois Extension Pipeline Company LLC						24"						168						35		%
Andeavor Logistics Rio Pipeline LLC						12"						119						67		%
LOCAP LLC						48"						57						59		%
LOOP LLC						48"						48						41		%
Refined Product Systems:
Explorer Pipeline Company						10" - 28"						1,872						25		%
Natural Gas and NGL Systems:
Whistler Pipeline LLC(c)						36" - 42"						498						38		%
BANGL LLC(d)						12" - 24"						109						25		%

(a) The investment in MarEn Bakken Company LLC includes MPLX’s 9.19 percent indirect interest in a joint venture that owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects (collectively referred to as the “Bakken Pipeline system”).

(b) The investment in W2W Holdings LLC includes MPLX’s 15 percent indirect interest in a joint venture that has partial ownership of the Wink to Webster pipeline system.

(c) Whistler Pipeline LLC also owns a 50 percent interest in a joint venture owning primarily natural gas storage facilities.

(d) BANGL LLC also owns a 42 percent interest in a 323 mile NGL pipeline.

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The following table sets forth details about MPLX owned and operated terminals as of December 31, 2023. Additionally, MPLX has partial ownership interest in one terminal.

Owned and Operated Terminals						Number of Terminals						Tank Storage Capacity (mbbls)
Refined Products Terminals:
Alabama						2						443
Alaska						3						1,540
California						8						3,484
Florida						3						2,265
Georgia						4						982
Idaho						3						999
Illinois						2						562
Indiana						7						3,770
Kentucky						6						2,587
Louisiana						2						5,469
Michigan						8						2,440
Minnesota						1						13
New Mexico						2						470
North Carolina						3						1,343
North Dakota						1						—
Ohio						12						3,144
Pennsylvania						1						390
South Carolina						1						371
Tennessee						4						1,149
Texas						1						76
Utah						1						21
Washington						4						920
West Virginia						2						1,564
Subtotal light products terminals						81						34,002
Asphalt Terminals
Arizona						3						556
Minnesota						1						—
Nevada(a)						1						283
New Mexico						1						38
Texas						1						197
Subtotal asphalt terminals						7						1,074
Total owned and operated terminals						88						35,076

(a) MPLX accounts for this terminal as an equity method investment.

The following table sets forth details about MPLX barges and towboats as of December 31, 2023.

Class of Equipment						Number in Class						Capacity (mbbls)
Inland tank barges						305						8,123
Inland towboats						29						N/A

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The following tables set forth certain information relating to MPLX’s consolidated and operated joint venture gas processing facilities, fractionation facilities, natural gas gathering systems, NGL pipelines and natural gas pipelines as of and for the year ended December 31, 2023.

Gas Processing Complexes						Design Throughput Capacity (MMcf/d)						Natural Gas Throughput (MMcf/d)(a)						Utilization of Design Capacity(a)
Marcellus Operations						6,320						5,773						91		%
Utica Operations						1,325						564						43		%
Southern Appalachia Operations						495						216						44		%
Southwest Operations(b)						2,545						1,772						70		%
Bakken Operations(c)						185						163						88		%
Rockies Operations						1,177						483						41		%
Total						12,047						8,971						74		%

(a) Natural gas throughput is a weighted average for days in operation. The utilization of design capacity has been calculated using the weighted average design throughput capacity.

(b) The capacity presented above includes MPLX’s proportionate share of Centrahoma Processing LLC’s processing capacity of 550 MMcf/d, as MPLX owns a non-operating 40 percent interest in this joint venture. Actual throughput of 159 MMcf/d representing MPLX’s share of processed volumes is also included and used to compute the utilization presented above.

(c) Includes volumes processed at third-party facilities in the Bakken.

Fractionation & Condensate Stabilization Facilities						Design Throughput Capacity (mbpd)						NGL Throughput (mbpd)(a)						Utilization of Design Capacity(a)
Marcellus Operations						413						323						78		%
Utica Operations(b)						—						—						—		%
Southern Appalachia Operations						24						11						46		%
Bakken Operations						33						20						61		%
Rockies Operations						5						3						60		%
Total						475						357						75		%

(a) NGL throughput is a weighted average for days in operation. The utilization of design capacity has been calculated using the weighted average design throughput capacity.

(b) MPLX operates a condensate stabilization facility with a capacity of 23 mbpd and 77 thousand barrels of condensate storage that is owned by a joint venture in which it has a 62 percent ownership interest. Actual NGL throughput at this facility was 13 mbpd for the year ended December 31, 2023.

De-ethanization Facilities						Design Throughput Capacity (mbpd)						NGL Throughput (mbpd)(a)						Utilization of Design Capacity(a)
Marcellus Operations						309						233						75		%
Utica Operations						40						7						18		%
Rockies Operations						5						—						—		%
Total						354						240						68		%

(a) NGL throughput is a weighted average for days in operation. The utilization of design capacity has been calculated using the weighted average design throughput capacity.

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Natural Gas Gathering Systems						Design Throughput Capacity (MMcf/d)						Natural Gas Throughput (MMcf/d)(a)						Utilization of Design Capacity(a)
Marcellus Operations						1,622						1,389						88		%
Utica Operations						3,183						2,338						73		%
Southwest Operations						2,980						1,772						59		%
Bakken Operations						239						165						69		%
Rockies Operations(b)						1,637						593						36		%
Total						9,661						6,257						65		%

(a) Natural gas throughput is a weighted average for days in operation. The utilization of design capacity has been calculated using the weighted average design throughput capacity.

(b) Includes 102 MMcf/d of volumes gathered for third parties by MPLX’s operated joint venture, Rendezvous Gas Services, L.L.C. (“RGS”). Excludes RGS gathering capacity of 1,032 MMcf/d and volumes gathered by RGS which generally interconnect with MPLX owned Rockies region gathering systems.

The following table sets forth certain information relating to MPLX’s NGL pipelines as of December 31, 2023.

NGL Pipelines						Diameter (inches)						Length (miles)
Marcellus Operations						4” - 20”						448
Utica Operations						4” - 20”						178
Southern Appalachia Operations						6” - 8”						140
Southwest Operations						6” - 10"						28
Bakken Operations						6” - 12”						104
Rockies Operations						4” - "10						36

MIDSTREAM - MPC-RETAINED ASSETS AND INVESTMENTS

The following table sets forth certain information relating to our crude oil and refined products pipeline systems not owned by MPLX.

As of December 31, 2023, we had partial ownership interests in the following pipeline companies.

Pipeline Company									Diameter (inches)						Length (miles)						Ownership Interest						Operated by MPL
Crude oil pipeline companies:
Capline Pipeline Company LLC									40”						644						33		%				Yes
Gray Oak Pipeline, LLC									8” - 30”						845						25		%				No
LOOP(a)									48”						48						10		%				No
Total															1,489
Refined products pipeline companies:
Ascension Pipeline Company LLC									12”						34						50		%				No
Centennial Pipeline LLC(b)									24” - 26”						793						50		%				Yes
Muskegon Pipeline LLC									10” - 12”						170						60		%				Yes
Wolverine Pipe Line Company									6” - 18”						798						6		%				No
Total															1,795

(a)Represents interest retained by MPC and excludes MPLX’s 41 percent ownership interest in LOOP. Pipeline mileage is excluded from total as it is included with MPLX assets.

(b)All system pipeline miles are inactive.

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The following table sets forth details about our ocean vessels as of December 31, 2023.

Class of Equipment						Number in Class						Capacity (mbbls)
Jones Act product tankers						4						1,320
750 Series ATB vessels(a)						3						990

(a)Represents ownership through our indirect noncontrolling 50 percent interest in Crowley Blue Water Partners.