7Baggers
Quarterly
Annual
    Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 
      
                                                         
      assets
                                                         
      cash and cash equivalents
    1,765,000,000 1,386,000,000 2,534,000,000 1,519,000,000 2,426,000,000 2,501,000,000 385,000,000 1,048,000,000 960,000,000 755,000,000 393,000,000 238,000,000 121,000,000 298,000,000 42,000,000 13,000,000 39,000,000 8,000,000 24,000,000 15,000,000 28,000,000 67,000,000 57,000,000 15,000,000 41,000,000 7,000,000 93,000,000 68,000,000 37,000,000 3,000,000 2,000,000 5,000,000 3,000,000 293,000,000 265,000,000 234,000,000 208,000,000 35,000,000 4,000,000 43,000,000 90,400,000 130,400,000 132,500,000 27,300,000 32,200,000 43,200,000 40,600,000 54,100,000 86,900,000 115,300,000 227,900,000 216,700,000 68,500,000 
      receivables, less allowance for expected credit loss
    729,000,000 736,000,000                                                    
      current assets - related parties
    854,000,000 826,000,000 910,000,000 830,000,000 842,000,000 748,000,000 803,000,000 748,000,000 759,000,000 654,000,000 701,000,000 729,000,000 698,000,000 731,000,000 813,000,000 644,000,000 645,000,000 614,000,000 650,000,000 677,000,000 591,000,000 594,000,000 600,000,000 656,000,000 660,000,000 333,000,000 386,000,000                           
      inventories
    175,000,000 192,000,000 186,000,000 180,000,000 171,000,000 168,000,000 163,000,000 159,000,000 154,000,000 146,000,000 141,000,000 148,000,000 151,000,000 157,000,000 149,000,000 142,000,000 141,000,000 126,000,000 128,000,000 118,000,000 117,000,000 115,000,000 105,000,000 110,000,000 104,000,000 77,000,000 74,000,000 77,000,000 81,000,000 73,000,000 64,000,000 65,000,000 64,000,000 62,000,000 62,000,000 54,000,000 50,000,000 49,000,000 45,000,000 49,000,000             10,100,000 
      assets held for sale
    1,034,000,000                20,000,000   188,000,000                                  
      other current assets
    38,000,000 33,000,000 33,000,000 29,000,000 37,000,000 32,000,000 36,000,000 30,000,000 30,000,000 49,000,000 63,000,000 53,000,000 40,000,000 43,000,000 53,000,000 54,000,000 54,000,000 46,000,000 49,000,000 65,000,000 59,000,000 48,000,000 45,000,000 110,000,000 65,000,000 34,000,000 34,000,000 46,000,000 37,000,000 41,000,000 33,000,000 37,000,000 32,000,000 31,000,000 31,000,000 33,000,000 33,000,000 24,000,000 28,000,000 50,000,000 4,100,000 7,300,000 6,100,000 7,000,000 6,900,000 8,200,000 11,000,000 8,900,000 2,300,000 3,300,000 2,400,000 2,600,000 500,000 
      total current assets
    4,595,000,000 3,173,000,000 4,521,000,000 3,276,000,000 4,218,000,000 4,196,000,000 2,139,000,000 2,808,000,000 2,736,000,000 2,321,000,000 2,012,000,000 1,905,000,000 1,951,000,000 2,018,000,000 1,798,000,000 1,507,000,000 1,516,000,000 1,332,000,000 1,374,000,000 1,515,000,000 1,272,000,000 1,386,000,000 1,329,000,000 1,484,000,000 1,440,000,000 786,000,000 952,000,000 897,000,000 925,000,000 774,000,000 729,000,000 559,000,000 571,000,000 843,000,000 811,000,000 740,000,000 686,000,000 486,000,000 429,000,000 474,000,000 173,000,000 214,700,000 209,900,000 97,200,000 105,500,000 119,400,000 128,000,000 135,100,000 155,600,000 180,900,000 295,700,000 283,800,000 152,500,000 
      equity method investments
    4,792,000,000 5,024,000,000 4,751,000,000 4,531,000,000 4,558,000,000 4,373,000,000 4,343,000,000 3,743,000,000 4,099,000,000 4,124,000,000 4,144,000,000 4,095,000,000 4,108,000,000 4,099,000,000 4,079,000,000 3,981,000,000 4,001,000,000 4,033,000,000 4,040,000,000 4,036,000,000 4,081,000,000 4,065,000,000 3,992,000,000 5,275,000,000 5,182,000,000 4,409,000,000 4,270,000,000 4,174,000,000 4,104,000,000 4,042,000,000 4,033,000,000 4,010,000,000 3,997,000,000 3,368,000,000 3,306,000,000 2,467,000,000 2,475,000,000 2,485,000,000 2,598,000,000 2,458,000,000              
      property, plant and equipment
    21,348,000,000 19,191,000,000 19,147,000,000 19,154,000,000 19,153,000,000 19,186,000,000 19,299,000,000 19,264,000,000 18,620,000,000 18,692,000,000 18,758,000,000 18,848,000,000 18,910,000,000 19,767,000,000 19,912,000,000 20,042,000,000 20,158,000,000 20,352,000,000 20,996,000,000 21,218,000,000 21,615,000,000 21,758,000,000 21,829,000,000 22,145,000,000 21,892,000,000 15,021,000,000 14,816,000,000 14,639,000,000 14,271,000,000 13,642,000,000 13,291,000,000 12,187,000,000 11,922,000,000 11,638,000,000 11,411,000,000 10,730,000,000 10,537,000,000 10,360,000,000 10,195,000,000 9,683,000,000 1,109,200,000 1,059,500,000 1,031,000,000 1,008,600,000 982,600,000 955,800,000 959,000,000 966,600,000 956,200,000 929,800,000 909,000,000 910,000,000 958,300,000 
      intangibles
    1,443,000,000 497,000,000 529,000,000 518,000,000 551,000,000 585,000,000 618,000,000 654,000,000 609,000,000 641,000,000 673,000,000 705,000,000 736,000,000 768,000,000 800,000,000 831,000,000 864,000,000 896,000,000 927,000,000 959,000,000 991,000,000 1,023,000,000 1,055,000,000 1,270,000,000 1,309,000,000 405,000,000 414,000,000 424,000,000 434,000,000 435,000,000 444,000,000 453,000,000 463,000,000 473,000,000 482,000,000 492,000,000 501,000,000 511,000,000 520,000,000 466,000,000              
      goodwill
    8,732,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,645,000,000 7,657,000,000 7,657,000,000 7,657,000,000 7,657,000,000 7,657,000,000 7,657,000,000 7,657,000,000 7,722,000,000 7,722,000,000 9,536,000,000 10,735,000,000 2,581,000,000 2,581,000,000 2,586,000,000 2,586,000,000 2,460,000,000 2,460,000,000 2,245,000,000 2,245,000,000 2,245,000,000 2,245,000,000 2,199,000,000 2,199,000,000 2,199,000,000 2,200,000,000 2,559,000,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 104,700,000 134,200,000 
      right of use assets
    276,000,000 275,000,000 286,000,000 273,000,000 271,000,000 282,000,000 290,000,000 264,000,000 271,000,000 281,000,000 274,000,000 283,000,000 288,000,000 300,000,000 280,000,000 268,000,000 282,000,000 297,000,000 296,000,000 309,000,000 323,000,000 341,000,000 352,000,000 365,000,000 366,000,000 255,000,000 262,000,000                           
      noncurrent assets - related parties
    983,000,000 1,021,000,000 1,095,000,000 1,120,000,000 1,135,000,000 1,160,000,000 1,151,000,000 1,161,000,000 1,174,000,000 1,199,000,000 1,212,000,000 1,225,000,000 1,222,000,000 1,142,000,000 1,151,000,000 1,161,000,000 1,160,000,000 1,144,000,000 676,000,000 672,000,000 675,000,000 676,000,000 677,000,000 303,000,000 302,000,000 253,000,000 256,000,000                           
      other noncurrent assets
    1,058,000,000 1,015,000,000 998,000,000 994,000,000 984,000,000 975,000,000 976,000,000 990,000,000 966,000,000 970,000,000 954,000,000 959,000,000 952,000,000 49,000,000 50,000,000 60,000,000 61,000,000 62,000,000 64,000,000 48,000,000 48,000,000 51,000,000 50,000,000 52,000,000 55,000,000 36,000,000 33,000,000 35,000,000 36,000,000 37,000,000 28,000,000 26,000,000 22,000,000 18,000,000 17,000,000 14,000,000 14,000,000 12,000,000 11,000,000 12,000,000 4,200,000 3,700,000 8,400,000 4,000,000 1,500,000 1,500,000 2,000,000 2,100,000 2,200,000 2,300,000 2,500,000 2,800,000 5,200,000 
      total assets
    43,227,000,000 37,841,000,000 38,972,000,000 37,511,000,000 38,515,000,000 38,402,000,000 36,461,000,000 36,529,000,000 36,120,000,000 35,873,000,000 35,672,000,000 35,665,000,000 35,812,000,000 35,788,000,000 35,727,000,000 35,507,000,000 35,699,000,000 35,773,000,000 36,030,000,000 36,414,000,000 36,662,000,000 37,022,000,000 37,006,000,000 40,430,000,000 41,281,000,000 23,746,000,000 23,584,000,000 22,779,000,000 22,379,000,000 21,412,000,000 21,006,000,000 19,500,000,000 19,238,000,000 18,601,000,000 18,285,000,000 16,646,000,000 16,415,000,000 16,079,000,000 15,978,000,000 15,677,000,000 1,391,100,000 1,382,600,000 1,354,000,000 1,214,500,000 1,194,300,000 1,181,400,000 1,193,700,000 1,208,500,000 1,218,700,000 1,217,700,000 1,311,900,000 1,301,300,000 1,250,200,000 
      liabilities
                                                         
      accounts payable
    131,000,000 149,000,000 145,000,000 147,000,000 120,000,000 127,000,000 132,000,000 153,000,000 132,000,000 128,000,000 139,000,000 224,000,000 289,000,000 352,000,000 214,000,000 172,000,000 177,000,000 158,000,000 162,000,000 152,000,000 140,000,000 145,000,000 138,000,000 242,000,000 196,000,000 134,000,000 110,000,000 162,000,000 146,000,000 172,000,000 143,000,000 151,000,000 152,000,000 144,000,000 121,000,000 123,000,000 107,000,000 102,000,000 105,000,000 89,000,000 67,600,000 55,500,000 44,900,000 42,200,000 34,900,000 25,700,000 27,000,000 30,500,000 41,600,000 43,300,000 34,300,000 39,000,000 42,500,000 
      accrued liabilities
    261,000,000 262,000,000 269,000,000 295,000,000 271,000,000 246,000,000 248,000,000 300,000,000 332,000,000 241,000,000 266,000,000 269,000,000 300,000,000 415,000,000 396,000,000 363,000,000 332,000,000 258,000,000 233,000,000 194,000,000 169,000,000 138,000,000 135,000,000 187,000,000 185,000,000 148,000,000 189,000,000 250,000,000    231,000,000 202,000,000 178,000,000 194,000,000 228,000,000 193,000,000 180,000,000 159,000,000 186,000,000              
      current liabilities - related parties
    393,000,000 399,000,000 402,000,000 396,000,000 354,000,000 344,000,000 351,000,000 360,000,000 387,000,000 336,000,000 327,000,000 343,000,000 364,000,000 403,000,000 687,000,000 1,780,000,000 1,706,000,000 812,000,000 338,000,000 356,000,000 364,000,000 372,000,000 297,000,000 1,008,000,000 562,000,000 224,000,000 204,000,000                           
      accrued property, plant and equipment
    400,000,000 253,000,000 211,000,000 208,000,000 190,000,000 172,000,000 166,000,000 216,000,000 140,000,000 149,000,000 158,000,000 128,000,000 111,000,000 104,000,000 91,000,000 97,000,000 66,000,000 54,000,000 58,000,000 84,000,000 121,000,000 154,000,000 234,000,000 283,000,000 346,000,000 227,000,000 249,000,000 294,000,000    194,000,000 183,000,000 171,000,000 138,000,000 132,000,000 157,000,000 163,000,000 140,000,000 166,000,000              
      long-term debt due within one year
    1,501,000,000 1,500,000,000 2,697,000,000 1,693,000,000 2,836,000,000 2,827,000,000 1,639,000,000 1,135,000,000 1,000,000 1,000,000 1,000,000 988,000,000 982,000,000 1,000,000,000 999,000,000 499,000,000 1,000,000 1,000,000 2,000,000 764,000,000 307,000,000                    800,000 800,000 800,000 800,000 800,000 800,000 800,000 700,000 700,000 700,000 700,000 700,000 700,000 
      accrued interest payable
    273,000,000 267,000,000 203,000,000 244,000,000 220,000,000 252,000,000 187,000,000 242,000,000 187,000,000 247,000,000 192,000,000 237,000,000 192,000,000 224,000,000 192,000,000 202,000,000 188,000,000 203,000,000 189,000,000 222,000,000 207,000,000 207,000,000 214,000,000 210,000,000 226,000,000 173,000,000 156,000,000 143,000,000 179,000,000 183,000,000 99,000,000 88,000,000 64,000,000 94,000,000 70,000,000 53,000,000 55,000,000 53,000,000 56,000,000 54,000,000 2,500,000 8,400,000            
      operating lease liabilities
    49,000,000 47,000,000 47,000,000 45,000,000 49,000,000 50,000,000 50,000,000 45,000,000 48,000,000 49,000,000 45,000,000 46,000,000 44,000,000 45,000,000 47,000,000 59,000,000 61,000,000 63,000,000 63,000,000 63,000,000 65,000,000 69,000,000 67,000,000 66,000,000 61,000,000 47,000,000 46,000,000                           
      liabilities held for sale
    230,000,000                   101,000,000                                  
      other current liabilities
    264,000,000 192,000,000 195,000,000 207,000,000 227,000,000 208,000,000 187,000,000 173,000,000 172,000,000 165,000,000 184,000,000 166,000,000 217,000,000 198,000,000 232,000,000 176,000,000 190,000,000 178,000,000 151,000,000 150,000,000 158,000,000 143,000,000 129,000,000 136,000,000 656,000,000 95,000,000 75,000,000 83,000,000 665,000,000 610,000,000 445,000,000 38,000,000 41,000,000 29,000,000 26,000,000 24,000,000 18,000,000 17,000,000 14,000,000 12,000,000 2,700,000 3,600,000 7,000,000 1,700,000 1,800,000 3,200,000 1,700,000 1,400,000 1,600,000 1,100,000 2,600,000 3,000,000 1,600,000 
      total current liabilities
    3,502,000,000 3,069,000,000 4,169,000,000 3,235,000,000 4,267,000,000 4,226,000,000 2,960,000,000 2,624,000,000 1,399,000,000 1,316,000,000 1,312,000,000 2,401,000,000 2,499,000,000 2,741,000,000 2,858,000,000 3,348,000,000 2,721,000,000 1,727,000,000 1,196,000,000 2,086,000,000 1,531,000,000 1,228,000,000 1,214,000,000 2,132,000,000 2,232,000,000 1,048,000,000 1,029,000,000 1,186,000,000 1,204,000,000 1,279,000,000 876,000,000 1,304,000,000 1,048,000,000 790,000,000 712,000,000 704,000,000 670,000,000 650,000,000 1,045,000,000 612,000,000 135,500,000 128,000,000 115,000,000 100,600,000 90,800,000 82,400,000 87,500,000 83,400,000 85,600,000 78,100,000 64,600,000 63,300,000 62,600,000 
      long-term deferred revenue
    121,000,000 308,000,000 317,000,000 317,000,000 326,000,000 344,000,000 349,000,000 347,000,000 295,000,000 268,000,000 233,000,000 219,000,000 170,000,000 429,000,000 405,000,000 383,000,000 366,000,000 349,000,000 332,000,000 314,000,000 291,000,000 261,000,000 241,000,000 217,000,000 189,000,000 108,000,000 94,000,000 80,000,000 69,000,000 58,000,000 49,000,000 42,000,000 34,000,000 26,000,000 19,000,000 12,000,000 12,000,000 9,000,000 6,000,000 4,000,000              
      long-term liabilities - related parties
    339,000,000 330,000,000 324,000,000 334,000,000 320,000,000 325,000,000 320,000,000 325,000,000 343,000,000 341,000,000 338,000,000 338,000,000 318,000,000 303,000,000 305,000,000 302,000,000 297,000,000 306,000,000 279,000,000 283,000,000 281,000,000 287,000,000 290,000,000 290,000,000 293,000,000 271,000,000 273,000,000                           
      long-term debt
    24,145,000,000 19,725,000,000 19,721,000,000 19,255,000,000 19,250,000,000 19,245,000,000 18,805,000,000 19,296,000,000 20,417,000,000 20,405,000,000 20,393,000,000 18,808,000,000 18,797,000,000 18,775,000,000 18,757,000,000 18,072,000,000 18,253,000,000 19,234,000,000 20,052,000,000 19,375,000,000 20,042,000,000 20,556,000,000 20,467,000,000 19,704,000,000 19,190,000,000 14,030,000,000 13,832,000,000 13,392,000,000 12,889,000,000 11,874,000,000 11,861,000,000 6,945,000,000 6,848,000,000 6,666,000,000 6,654,000,000 4,422,000,000 4,411,000,000 4,400,000,000 4,715,000,000 5,255,000,000 752,500,000 752,600,000 757,000,000 644,000,000 264,200,000 264,400,000 279,600,000 9,800,000 10,000,000 10,200,000 10,400,000 10,600,000 10,700,000 
      deferred income taxes
    20,000,000 18,000,000 18,000,000 18,000,000 16,000,000 16,000,000 16,000,000 16,000,000 12,000,000 13,000,000 13,000,000 13,000,000 14,000,000 14,000,000 14,000,000 10,000,000 11,000,000 11,000,000 11,000,000 12,000,000 12,000,000 11,000,000 11,000,000 12,000,000 15,000,000 11,000,000 12,000,000 13,000,000 13,000,000 11,000,000 10,000,000 5,000,000 7,000,000 7,000,000 6,000,000 5,000,000 5,000,000 368,000,000 382,000,000 377,000,000        100,000 500,000   -100,000 -100,000 
      long-term operating lease liabilities
    220,000,000 218,000,000 227,000,000 217,000,000 217,000,000 225,000,000 231,000,000 211,000,000 219,000,000 228,000,000 221,000,000 230,000,000 241,000,000 250,000,000 228,000,000 205,000,000 220,000,000 232,000,000 230,000,000 244,000,000 258,000,000 274,000,000 284,000,000 302,000,000 309,000,000 209,000,000 216,000,000                           
      other long-term liabilities
    356,000,000 124,000,000 128,000,000 125,000,000 137,000,000 135,000,000 133,000,000 126,000,000 119,000,000 113,000,000 114,000,000 142,000,000 130,000,000 167,000,000                                        
      total liabilities
    28,703,000,000 23,792,000,000 24,904,000,000 23,501,000,000 24,533,000,000 24,516,000,000 22,814,000,000 22,945,000,000 22,804,000,000 22,684,000,000 22,624,000,000 22,151,000,000 22,169,000,000 22,679,000,000 22,726,000,000 22,490,000,000 22,023,000,000 22,010,000,000 22,212,000,000 22,429,000,000 22,599,000,000 22,792,000,000 22,682,000,000 22,849,000,000 22,421,000,000 15,872,000,000 15,651,000,000 14,911,000,000 14,423,000,000 13,457,000,000 13,028,000,000 8,527,000,000 8,152,000,000 7,692,000,000 7,585,000,000 5,327,000,000 5,261,000,000 5,613,000,000 6,323,000,000 6,423,000,000 898,000,000 890,200,000 878,000,000 750,800,000 361,000,000 352,700,000 372,600,000 94,400,000 96,900,000 89,100,000 75,700,000 74,500,000 74,600,000 
      commitments and contingencies
                                                         
      series a preferred units
        203,000,000 202,000,000 561,000,000  970,000,000 968,000,000 968,000,000  967,000,000 965,000,000 965,000,000 965,000,000 986,000,000 968,000,000 968,000,000 968,000,000 968,000,000 968,000,000 968,000,000 968,000,000 968,000,000 1,005,000,000                            
      equity
                                                         
      common unitholders - public
    9,513,000,000 9,402,000,000 9,472,000,000 9,322,000,000 9,378,000,000 9,392,000,000 8,997,000,000 8,700,000,000 8,533,000,000 8,508,000,000 8,459,000,000 8,413,000,000 8,569,000,000 8,518,000,000 8,505,000,000 8,579,000,000 8,919,000,000 9,061,000,000 9,226,000,000 9,384,000,000 9,436,000,000 9,469,000,000 9,509,000,000 10,800,000,000 11,289,000,000 8,305,000,000 8,326,000,000 8,336,000,000 8,367,000,000 8,366,000,000 8,385,000,000 8,379,000,000 8,457,000,000 8,360,000,000 8,147,000,000 8,086,000,000 7,898,000,000 7,658,000,000 7,805,000,000 7,691,000,000 647,100,000 647,100,000 641,700,000 639,000,000 417,100,000 416,000,000 414,500,000 412,000,000 412,000,000 412,700,000 412,600,000 410,700,000  
      common unitholders - mpc
    4,778,000,000 4,413,000,000 4,361,000,000 4,257,000,000 4,172,000,000 4,062,000,000 3,858,000,000 3,758,000,000 3,581,000,000 3,480,000,000 3,388,000,000 3,293,000,000 3,276,000,000 2,784,000,000 2,698,000,000  2,944,000,000 2,897,000,000 2,796,000,000                                   
      accumulated other comprehensive income
    5,000,000 5,000,000 5,000,000                                                   
      total mplx lp partners’ capital
    14,296,000,000 13,820,000,000 13,838,000,000 13,576,000,000 13,547,000,000 13,451,000,000 12,852,000,000 12,454,000,000 12,110,000,000 11,984,000,000 11,843,000,000 12,309,000,000 12,438,000,000 11,905,000,000 11,796,000,000 11,811,000,000 12,447,000,000 12,552,000,000 12,606,000,000 12,772,000,000 12,848,000,000 13,015,000,000 13,108,000,000 16,364,000,000 17,642,000,000 6,619,000,000 6,679,000,000 6,708,000,000 6,798,000,000 6,802,000,000 6,832,000,000 9,827,000,000 9,941,000,000 9,763,000,000 9,557,000,000 10,301,000,000 10,137,000,000 9,458,000,000 9,641,000,000 9,241,000,000 487,300,000 486,700,000 470,300,000 458,200,000 491,500,000 488,400,000 484,000,000 646,200,000 647,800,000 647,500,000 695,600,000 691,100,000  
      noncontrolling interests
    228,000,000 229,000,000 230,000,000 231,000,000 232,000,000 233,000,000 234,000,000 235,000,000 236,000,000 237,000,000 237,000,000 237,000,000 238,000,000 239,000,000 240,000,000 241,000,000 243,000,000 243,000,000 244,000,000 245,000,000 247,000,000 247,000,000 248,000,000 249,000,000 250,000,000 250,000,000 250,000,000 156,000,000 155,000,000 150,000,000 146,000,000 146,000,000 145,000,000 146,000,000                    
      total equity
    14,524,000,000 14,049,000,000 14,068,000,000 13,807,000,000 13,779,000,000 13,684,000,000 13,086,000,000 12,689,000,000 12,346,000,000 12,221,000,000 12,080,000,000 12,546,000,000 12,676,000,000 12,144,000,000 12,036,000,000 12,052,000,000 12,690,000,000 12,795,000,000 12,850,000,000 13,017,000,000 13,095,000,000 13,262,000,000 13,356,000,000 16,613,000,000 17,892,000,000 6,869,000,000 6,929,000,000 6,864,000,000 6,953,000,000 6,952,000,000 6,978,000,000 9,973,000,000 10,086,000,000 9,909,000,000 9,700,000,000 10,319,000,000 10,154,000,000 9,473,000,000 9,655,000,000 9,254,000,000 493,100,000 492,400,000 476,000,000 463,700,000 833,300,000 828,700,000 821,100,000 1,114,100,000 1,121,800,000 1,128,600,000 1,236,200,000   
      total liabilities, preferred units and equity
    43,227,000,000 37,841,000,000 38,972,000,000 37,511,000,000 38,515,000,000 38,402,000,000 36,461,000,000 36,529,000,000 36,120,000,000 35,873,000,000 35,672,000,000 35,665,000,000 35,812,000,000 35,788,000,000 35,727,000,000 35,507,000,000 35,699,000,000 35,773,000,000 36,030,000,000 36,414,000,000 36,662,000,000 37,022,000,000 37,006,000,000 40,430,000,000 41,281,000,000 23,746,000,000 23,584,000,000 22,779,000,000 22,379,000,000 21,412,000,000 21,006,000,000 19,500,000,000 19,238,000,000 18,601,000,000 18,285,000,000 16,646,000,000 16,415,000,000 16,079,000,000                
      receivables
      858,000,000 718,000,000 742,000,000 747,000,000 752,000,000 823,000,000 833,000,000 717,000,000 714,000,000 737,000,000 941,000,000 789,000,000 741,000,000 654,000,000 617,000,000 538,000,000 523,000,000 452,000,000 477,000,000 562,000,000 522,000,000 593,000,000 570,000,000 335,000,000 365,000,000 417,000,000 452,000,000 363,000,000 300,000,000 292,000,000 320,000,000 284,000,000 255,000,000 297,000,000 289,000,000 265,000,000 250,000,000 244,000,000 11,800,000 12,600,000 8,600,000 10,200,000 8,900,000 10,900,000 12,200,000 12,200,000 14,300,000 12,800,000 14,000,000 17,600,000 13,700,000 
      series a preferred units -
       203,000,000    895,000,000    968,000,000                                          
      accumulated other comprehensive loss
       -3,000,000 -3,000,000 -3,000,000 -3,000,000 -4,000,000 -4,000,000 -4,000,000 -4,000,000 -8,000,000 -8,000,000 -8,000,000 -8,000,000 -17,000,000 -17,000,000 -17,000,000 -17,000,000 -15,000,000 -16,000,000 -16,000,000 -16,000,000 -15,000,000 -15,000,000 -15,000,000 -15,000,000 -16,000,000 -16,000,000 -16,000,000 -16,000,000 -14,000,000 -14,000,000                     
      series b preferred units
               611,000,000 601,000,000 611,000,000 601,000,000 611,000,000 601,000,000 611,000,000 601,000,000 611,000,000 601,000,000 611,000,000 601,000,000 611,000,000 601,000,000                             
      current assets:
                                                         
      current liabilities:
                                                         
      deferred credits and other liabilities
                  159,000,000 170,000,000 155,000,000 151,000,000 112,000,000 115,000,000 184,000,000 175,000,000 175,000,000 192,000,000 193,000,000 195,000,000 195,000,000 197,000,000 205,000,000 188,000,000 183,000,000 188,000,000 175,000,000 170,000,000 168,000,000 169,000,000 151,000,000 176,000,000 166,000,000 166,000,000 1,600,000 1,800,000 1,400,000 2,200,000 1,800,000 1,600,000 1,400,000 1,200,000 1,300,000 800,000 700,000 600,000 1,300,000 
      common unitholder - mpc
                   2,638,000,000    2,792,000,000 2,827,000,000 2,951,000,000 3,014,000,000 4,968,000,000 5,767,000,000 -1,671,000,000 -1,632,000,000 -1,612,000,000 -1,553,000,000 -1,548,000,000 -1,537,000,000 1,278,000,000 1,302,000,000 1,161,000,000 1,184,000,000 1,069,000,000 1,097,000,000 1,049,000,000 1,086,000,000 465,000,000 492,700,000 266,700,000 263,800,000 261,100,000 61,000,000 60,500,000 59,700,000 57,400,000 57,900,000 58,600,000 58,800,000 57,400,000  
      equity of predecessor
                                                         
      redeemable preferred units
                              1,004,000,000 1,004,000,000 1,003,000,000 1,003,000,000 1,000,000,000 1,000,000,000 1,000,000,000 1,000,000,000 1,000,000,000 1,000,000,000 1,000,000,000 993,000,000                
      increase/(decrease) in cash, cash equivalents and restricted cash
                                                         
      operating activities:
                                                         
      net income
                              509,000,000 1,834,000,000 1,395,000,000 879,000,000 423,000,000 836,000,000 595,000,000 378,000,000  258,000,000 126,000,000 -17,000,000  157,000,000 139,100,000 97,300,000 45,900,000 178,100,000 141,700,000 98,600,000 55,700,000 146,100,000 109,300,000 70,100,000 35,300,000 144,000,000 101,900,000 
      adjustments to reconcile net income to net cash from operating activities:
                                                         
      amortization of deferred financing costs
                              13,000,000 59,000,000 45,000,000 30,000,000 16,000,000 53,000,000 38,000,000 25,000,000  46,000,000 34,000,000 23,000,000                
      depreciation and amortization
                              211,000,000 766,000,000 565,000,000 364,000,000 176,000,000 683,000,000 515,000,000 351,000,000  546,000,000 407,000,000 269,000,000  89,000,000              
      asset retirement expenditures
                               -7,000,000 -7,000,000 -5,000,000 -1,000,000 -2,000,000 -2,000,000 -1,000,000  -5,000,000 -3,000,000 -2,000,000  -1,000,000 -700,000 -300,000 -100,000 -1,600,000 -1,000,000 -900,000 -200,000 -8,300,000 -3,400,000 -1,600,000 -400,000 -9,200,000  
      loss on disposal of assets
                              1,000,000                           
      income from equity method investments
                              -70,000,000 -240,000,000 -175,000,000 -111,000,000 -61,000,000      72,000,000 78,000,000                
      distributions from unconsolidated affiliates
                              101,000,000 400,000,000 279,000,000 175,000,000 68,000,000 241,000,000 136,000,000 66,000,000  148,000,000 111,000,000 78,000,000  15,000,000              
      changes in:
                                                         
      current receivables
                              57,000,000 -122,000,000 -157,000,000 -71,000,000 -8,000,000 8,000,000 -20,000,000 17,000,000  -52,000,000 -44,000,000 -20,000,000  -29,000,000 -1,600,000 -2,400,000 1,600,000 2,000,000 3,300,000 1,300,000  5,400,000 3,300,000 4,800,000 3,600,000 -2,000,000 1,900,000 
      fair value of derivatives
                              7,000,000 -10,000,000 16,000,000  -9,000,000 6,000,000 -3,000,000 -22,000,000                    
      current accounts payable and accrued liabilities
                              -78,000,000 100,000,000 151,000,000 119,000,000 -44,000,000 48,000,000 6,000,000 -16,000,000  100,000,000 59,000,000 18,000,000  4,000,000 12,700,000 14,300,000 5,000,000 500,000 900,000 -1,800,000 -2,300,000 -2,600,000 2,700,000 1,100,000 -7,100,000 -8,000,000 800,000 
      current assets/current liabilities - related parties
                              -147,000,000                           
      right of use assets/operating lease liabilities
                              3,000,000                           
      deferred revenue
                              14,000,000 39,000,000 30,000,000 16,000,000 7,000,000 5,000,000 3,000,000 3,000,000 3,000,000 2,000,000                  
      all other
                              -4,000,000 45,000,000 -5,000,000 -14,000,000 3,000,000 28,000,000 43,000,000 32,000,000  20,000,000 18,000,000 21,000,000  17,000,000 1,800,000 1,100,000 -1,400,000 1,500,000  -1,800,000 -500,000 2,400,000 400,000 -1,000,000 2,400,000 300,000 -5,200,000 
      net cash from operating activities
                              618,000,000 2,826,000,000 2,027,000,000 1,290,000,000 450,000,000 1,907,000,000 1,338,000,000 844,000,000  1,288,000,000 932,000,000 593,000,000  239,000,000 184,900,000 127,900,000 58,500,000 246,800,000 190,300,000 128,400,000 71,900,000 212,200,000 167,100,000 108,600,000 46,700,000 190,600,000 121,800,000 
      investing activities:
                                                         
      additions to property, plant and equipment
                              -457,000,000 -1,919,000,000 -1,383,000,000 -862,000,000 -455,000,000 -1,411,000,000 -1,004,000,000 -652,000,000  -1,206,000,000 -874,000,000 -569,000,000  -264,000,000 -121,100,000 -63,500,000 -29,700,000 -78,600,000 -47,100,000 -13,200,000 -5,100,000 -106,500,000 -81,000,000 -40,800,000 -9,200,000 -135,600,000 -109,200,000 
      acquisitions, net of cash acquired
                              1,000,000 -451,000,000 -451,000,000   -249,000,000 -249,000,000 -220,000,000      -1,218,000,000              
      disposal of assets
                              7,000,000 8,000,000 5,000,000 4,000,000 2,000,000 7,000,000 4,000,000 3,000,000  1,000,000     400,000 400,000      200,000    1,300,000 100,000 
      investments in unconsolidated affiliates
                              -128,000,000 -341,000,000 -215,000,000 -112,000,000 -38,000,000 -761,000,000 -690,000,000 -640,000,000  -87,000,000 -56,000,000 -39,000,000  -14,000,000              
      distributions from unconsolidated affiliates - return of capital
                              2,000,000 16,000,000 16,000,000 15,000,000  26,000,000 24,000,000 24,000,000                    
      net cash from investing activities
                              -575,000,000 -2,686,000,000 -2,027,000,000 -954,000,000 -490,000,000 -2,307,000,000 -1,837,000,000 -1,404,000,000  -1,212,000,000 -849,000,000 -526,000,000  -1,498,000,000 -119,100,000 -64,200,000 -29,300,000 -75,100,000 -43,100,000 -9,400,000 -6,600,000 -113,600,000 -81,000,000 -40,800,000 -9,200,000 87,400,000 112,600,000 
      financing activities:
                                                         
      long-term debt - borrowings
                              825,000,000 13,186,000,000 10,735,000,000 9,610,000,000 9,610,000,000 2,911,000,000 2,661,000,000 2,241,000,000  434,000,000 434,000,000 434,000,000  1,490,000,000 528,200,000 528,200,000 528,200,000 1,160,000,000 270,000,000 270,000,000 270,000,000       
      - repayments
                              -400,000,000 -6,780,000,000 -4,781,000,000 -4,655,000,000 -4,655,000,000 -416,000,000 -251,000,000 -1,000,000  -1,312,000,000 -1,312,000,000 -1,311,000,000  -1,441,000,000 -415,700,000 -415,400,000 -415,200,000 -525,900,000 -15,600,000 -15,400,000 -200,000       
      related party debt - borrowings
                              851,000,000 3,962,000,000 2,395,000,000 1,160,000,000 452,000,000 2,369,000,000 829,000,000 12,000,000  2,532,000,000 2,215,000,000 1,853,000,000  301,000,000              
      debt issuance costs
                               -76,000,000 -53,000,000 -53,000,000 -53,000,000 -29,000,000 -25,000,000 -21,000,000      -11,000,000 -4,400,000 -4,400,000 -3,800,000 -2,700,000        -2,400,000  
      distributions to mpc for acquisitions
                               -4,111,000,000 -4,111,000,000 -4,100,000,000                        
      distributions to noncontrolling interests
                              -6,000,000 -17,000,000 -10,000,000 -6,000,000 -3,000,000 -7,000,000 -4,000,000 -2,000,000  -3,000,000 -3,000,000 -1,000,000  -1,000,000              
      distributions to preferred unitholders
                              -20,000,000 -71,000,000 -52,000,000 -33,000,000 -16,000,000 -65,000,000 -49,000,000 -33,000,000  -25,000,000 -9,000,000                 
      distributions to unitholders and general partner
                              -515,000,000 -1,819,000,000 -1,312,000,000 -814,000,000 -347,000,000 -1,120,000,000 -800,000,000 -505,000,000  -845,000,000 -612,000,000 -391,000,000  -158,000,000           -13,300,000   
      contributions from noncontrolling interests
                              94,000,000 11,000,000 8,000,000 5,000,000 1,000,000 129,000,000 128,000,000 128,000,000  6,000,000 4,000,000 2,000,000                
      net cash (used in)/provided by financing activities
                              -26,000,000 -73,000,000  -336,000,000                        
      net increase/(decrease) in cash, cash equivalents and restricted cash
                              17,000,000 67,000,000                          
      cash, cash equivalents and restricted cash at beginning of period
                              76,000,000 9,000,000 9,000,000 9,000,000 9,000,000                       
      cash, cash equivalents and restricted cash at end of period
                              93,000,000 76,000,000 39,000,000 9,000,000 6,000,000                       
      receivables - related parties
                               289,000,000 318,000,000 294,000,000 330,000,000 160,000,000 152,000,000 173,000,000 198,000,000 122,000,000 106,000,000 113,000,000 102,000,000               
      long-term receivables - related parties
                               24,000,000 23,000,000 22,000,000 21,000,000 20,000,000 18,000,000 16,000,000 13,000,000 4,000,000 3,000,000 26,000,000 25,000,000               
      payables - related parties
                               203,000,000 165,000,000 273,000,000 146,000,000 516,000,000 317,000,000 93,000,000 91,000,000 75,000,000 68,000,000 65,000,000 512,000,000               
      deferred revenue - related parties
                               51,000,000 49,000,000 41,000,000 43,000,000 43,000,000 42,000,000 39,000,000 38,000,000 34,000,000 35,000,000 38,000,000 35,000,000 32,000,000 30,500,000 30,000,000 33,400,000 30,500,000 30,100,000 30,200,000 29,000,000 34,000,000 27,100,000 18,300,000 13,200,000   
      long-term deferred revenue - related parties
                               43,000,000 43,000,000 47,000,000 49,000,000 43,000,000 40,000,000 33,000,000 26,000,000 15,000,000 12,000,000 10,000,000 9,000,000 9,000,000 8,400,000 7,800,000 4,600,000 4,000,000 4,200,000 4,300,000 4,100,000       
      general partner - mpc
                                   -637,000,000 -626,000,000 -242,000,000 -257,000,000 1,013,000,000 1,009,000,000 485,000,000 484,000,000 819,000,000 -652,500,000 -655,000,000 -657,700,000 -659,400,000 -203,700,000 -204,100,000 -204,500,000 -32,500,000 -32,500,000 -32,600,000 13,900,000 13,700,000  
      impairment expense
                                       130,000,000 130,000,000 130,000,000                
      loss/(gain) on disposal of assets
                               2,000,000                          
      receivables from/liabilities to related parties
                               -50,000,000                          
      prepaid other current assets from related parties
                               7,000,000 5,000,000 4,000,000 1,000,000 -8,000,000                      
      investments - net related party loans
                                   80,000,000 80,000,000 80,000,000                    
      net proceeds from equity offerings
                                   483,000,000 483,000,000 443,000,000  792,000,000 510,000,000 321,000,000  1,000,000 1,300,000 1,300,000  230,100,000          
      issuance of redeemable preferred units
                                       984,000,000 984,000,000 984,000,000                
      distributions to mpc from predecessor
                                   -113,000,000 -113,000,000 -113,000,000  -104,000,000 -104,000,000 -104,000,000                
      contributions from mpc
                                                         
      consideration payment to class b unitholders
                                   -25,000,000 -25,000,000   -25,000,000 -25,000,000                 
      loss / (gain) on disposal of assets
                                1,000,000                         
      receivables from / liabilities to related parties
                                -113,000,000 -96,000,000 -127,000,000 63,000,000 61,000,000 22,000,000  6,000,000 15,000,000 6,000,000  -8,000,000 -4,600,000 -7,500,000 -5,100,000 15,200,000 7,200,000 7,700,000 6,300,000 18,900,000 16,900,000 11,700,000 3,000,000   
      net cash from financing activities
                                30,000,000  37,000,000 171,000,000 268,000,000 619,000,000  115,000,000 82,000,000 -75,000,000  1,275,000,000 -2,700,000 39,400,000 76,000,000 -198,500,000 -169,100,000 -129,900,000 -78,800,000 -261,200,000 -215,900,000 -169,200,000 -26,300,000 -61,400,000 -166,000,000 
      net increase / (decrease) in cash, cash equivalents and restricted cash
                                30,000,000                         
      gain on disposal of assets
                                    -1,000,000 -1,000,000  -1,000,000                  
      distributions of cash received from joint-interest acquisition entities to mpc
                                 -11,000,000 -11,000,000 -20,000,000                      
      net increase in cash, cash equivalents and restricted cash
                                  -3,000,000                       
      increase in cash, cash equivalents and restricted cash
                                                         
      distributions to mpc for acquisition
                                  -4,100,000,000                       
      accrued taxes
                                   38,000,000 44,000,000 39,000,000 31,000,000 33,000,000 37,000,000 32,000,000 24,000,000 26,000,000 6,300,000 8,600,000 7,100,000 5,200,000 5,900,000 5,400,000 4,800,000 4,000,000 4,700,000 4,600,000 3,700,000 3,000,000 6,000,000 
      class b unitholders
                                     133,000,000 133,000,000 133,000,000 133,000,000 266,000,000 266,000,000 266,000,000              
      common unitholder - gp
                                   821,000,000 822,000,000 351,000,000 350,000,000                   
      increase in cash and cash equivalents
                                                         
      (income) income from equity method investments
                                   -78,000,000 -29,000,000 -6,000,000                    
      issuance of units in markwest merger
                                           169,000,000              
      contributions from mpc - markwest merger
                                           1,230,000,000              
      distribution to mpc for acquisition
                                   -1,931,000,000 -1,931,000,000 -1,511,000,000                    
      contribution from mpc
                                       225,000,000 225,000,000                 
      distributions related to purchase of additional interest in pipe line holdings
                                           -12,000,000    -910,000,000 -310,000,000 -310,000,000 -310,000,000 -100,000,000 -100,000,000     
      net increase in cash and cash equivalents
                                   -229,000,000 -231,000,000 59,000,000  191,000,000 165,000,000 -8,000,000  16,000,000 63,100,000 103,100,000 105,200,000 -26,800,000   -13,500,000 -162,600,000 -129,800,000 -101,400,000 11,200,000 216,600,000 68,400,000 
      cash and cash equivalents at beginning of period
                                   234,000,000 234,000,000 234,000,000  43,000,000 43,000,000 43,000,000  27,000,000 27,300,000 27,300,000 27,300,000 54,100,000 54,100,000 54,100,000 54,100,000 216,700,000 216,700,000 216,700,000 216,700,000 100,000 100,000 
      cash and cash equivalents at end of period
                                   5,000,000 3,000,000 293,000,000  234,000,000 208,000,000 35,000,000  43,000,000 90,400,000 130,400,000 132,500,000 27,300,000 32,200,000 43,200,000 40,600,000 54,100,000 86,900,000 115,300,000 227,900,000 216,700,000 68,500,000 
      noncontrolling interest
                                      143,000,000 18,000,000 17,000,000 15,000,000 14,000,000 13,000,000           540,600,000 535,700,000  
      loss (income) from equity method investments
                                       74,000,000                  
      change in fair value of derivatives
                                       43,000,000 28,000,000 25,000,000  -6,000,000              
      investments - loans to (from) related parties
                                       77,000,000                  
      net gain on disposal of assets
                                        -1,000,000                 
      investments - loans from (to) related parties
                                        77,000,000 77,000,000                
      total liabilities and equity
                                          15,978,000,000 15,677,000,000 1,391,100,000 1,382,600,000 1,354,000,000 1,214,500,000 1,194,300,000 1,181,400,000 1,193,700,000 1,208,500,000 1,218,700,000 1,217,700,000 1,311,900,000   
      receivables from related parties
                                           88,000,000 54,900,000 52,700,000 51,200,000 41,000,000 45,900,000 45,400,000 52,500,000 48,300,000 40,500,000 37,100,000 40,700,000 38,000,000 59,700,000 
      long-term receivables from related parties
                                           25,000,000              
      payables to related parties
                                           47,000,000 25,100,000 21,100,000 21,800,000 20,200,000 17,300,000 17,100,000 24,200,000 12,800,000 9,900,000 10,100,000 10,100,000 17,600,000 3,700,000 
      subordinated unitholder - mpc
                                             227,900,000 222,500,000 217,500,000 217,100,000 216,000,000 214,300,000 209,300,000 210,400,000 208,800,000 210,300,000 209,300,000  
      net income on disposal of assets
                                           1,000,000 200,000 200,000            
      equity in earnings from unconsolidated affiliates
                                           -3,000,000              
      materials and supplies inventories
                                           1,000,000 11,800,000 11,700,000 11,500,000 11,700,000 11,600,000 11,700,000 11,700,000 11,600,000 11,600,000 12,400,000 10,700,000   
      noncontrolling interest retained by mpc
                                            5,800,000 5,700,000 5,700,000 5,500,000 341,800,000 340,300,000 337,100,000 467,900,000 474,000,000 481,100,000    
      depreciation
                                            38,100,000 25,400,000 12,700,000 50,200,000 37,500,000 25,000,000 12,600,000 48,900,000 36,300,000 23,600,000 11,700,000 39,400,000 27,800,000 
      quarterly distributions to unitholders and general partner
                                            -111,600,000 -70,000,000 -33,100,000 -103,100,000 -75,200,000 -48,700,000 -23,700,000 -77,800,000 -55,400,000 -33,900,000    
      quarterly distributions to noncontrolling interest retained by mpc
                                            -500,000 -300,000 -100,000 -46,900,000 -38,300,000 -25,800,000 -14,900,000 -82,700,000 -59,900,000 -34,900,000    
      investments - repayments of loans receivable from a related party
                                                         
      proceeds from initial public offering distributed to mpc
                                                       -202,700,000  
      distributions to mpc
                                                         
      net decrease in cash and cash equivalents
                                                -21,900,000 -10,900,000        
      investments in related party debt securities - purchases
                                                         
      - redemptions
                                                         
      investments - loans to a related party
                                                         
      - repayments of loans receivable from a related party
                                                         
      long-term debt - repayments
                                                   -700,000      
      net proceeds from initial public offering
                                                       407,100,000  
      contributions from (distributions to) mpc
                                                       -262,700,000 -165,500,000 
      investments-repayments of loans receivable from a related party
                                                         
      long-term debt-repayments
                                                    -600,000     
      investments—loans to related party
                                                        221,700,000 
      long-term debt—repayments
                                                     -400,000 -200,000  -500,000 
      distributions related to purchase of additional 5.0% interest in pipe line holdings
                                                     -100,000,000    
      distributions to noncontrolling interest
                                                      -12,800,000   
      loans receivable from related party
                                                         
      materials & supplies inventories
                                                       8,900,000  
      payroll and benefits payable
                                                        8,100,000 
      equity / net investment
                                                         
      net investment
                                                        1,175,600,000 
      total equity / net investment
                                                       1,226,800,000  
      total liabilities and equity / net investment
                                                       1,301,300,000  
      net income on sale of assets
                                                       300,000 300,000 
      receivables from / payables to related parties
                                                       26,900,000 -4,500,000 
      investments in related party debt securities – purchases
                                                         
      – redemptions
                                                         
      investments – loans to related party
                                                       221,700,000  
      long-term debt – repayments
                                                       -700,000  
      total net investment
                                                        1,175,600,000 
      total liabilities and net investment
                                                        1,250,200,000 
      investments in related party debt securities—purchases
                                                         
      —redemptions
                                                         
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.