SEGMENT INFORMATION We have three reportable segments: Refining &amp; Marketing; Speedway; and Midstream. Each of these segments is organized and managed based upon the nature of the products and services it offers.  Refining &amp; Marketing  refines crude oil and other feedstocks at our six refineries in the Gulf Coast and Midwest regions of the United States, purchases refined products and ethanol for resale and distributes refined products through transportation, storage, distribution and marketing services provided by our Midstream segment. We sell refined products to wholesale marketing customers domestically and internationally, to buyers on the spot market, to our Speedway business segment and to independent entrepreneurs who operate Marathon  retail outlets.  Speedway  sells transportation fuels and convenience merchandise in retail markets in the Midwest, East Coast, Southeast and Gulf Coast regions of the United States.  Midstream  gathers, processes and transports natural gas; gathers, transports, fractionates, stores and markets NGLs; and transports, stores, distributes and markets crude oil and refined products principally for the Refining &amp; Marketing segment via refining logistics assets, pipelines, terminals, towboats and barges. The Midstream segment primarily reflects the results of MPLX, our sponsored master limited partnership. As discussed in Note 4 , on February 1, 2018, we contributed certain refining logistics assets and fuels distribution services to MPLX. The results of these new businesses are reported in the Midstream segment prospectively from February 1, 2018, resulting in a net reduction of $230 million and $643 million to Refining &amp; Marketing segment results and a net increase to Midstream segment results of the same amount for the three and nine months ended September 30, 2018 , respectively. No effect was given to prior periods as these entities were not considered businesses prior to February 1, 2018. Segment income represents income from operations attributable to the reportable segments. Corporate administrative expenses, except for those attributable to MPLX, and costs related to certain non-operating assets are not allocated to the reportable segments. In addition, certain items that affect comparability (as determined by the chief operating decision maker) are not allocated to the reportable segments. In the third quarter we began reporting segment capital expenditures and investments excluding acquisitions in the current and comparative periods. (In millions) Refining &amp; Marketing Speedway Midstream Total Three Months Ended September 30, 2018 Revenues: Third party $ 16,552 $ 5,393 $ 842 $ 22,787 Intersegment 2,931 1 787 3,719 Related party 199 2  201 Segment revenues $ 19,682 $ 5,396 $ 1,629 $ 26,707 Segment income from operations $ 666 $ 161 $ 679 $ 1,506 Income from equity method investments 7 18 71 96 Depreciation and amortization (a) 257 76 205 538 Capital expenditures and investments (b) 226 98 593 917 (In millions) Refining &amp; Marketing Speedway Midstream Total Three Months Ended September 30, 2017 Revenues: Third party $ 13,573 $ 4,895 $ 585 $ 19,053 Intersegment (c) 2,904 1 369 3,274 Related party 155 2  157 Segment revenues $ 16,632 $ 4,898 $ 954 $ 22,484 Segment income from operations $ 1,097 $ 208 $ 355 $ 1,660 Income from equity method investments (a) 6 20 57 83 Depreciation and amortization (a) 266 68 169 503 Capital expenditures and investments (b) 198 108 423 729 (In millions) Refining &amp; Marketing Speedway Midstream Total Nine Months Ended September 30, 2018 Revenues: Third party $ 46,069 $ 15,225 $ 2,305 $ 63,599 Intersegment 8,181 4 2,180 10,365 Related party 566 6  572 Segment revenues $ 54,816 $ 15,235 $ 4,485 $ 74,536 Segment income from operations $ 1,558 $ 415 $ 1,863 $ 3,836 Income from equity method investments (a) 14 51 196 261 Depreciation and amortization (a) 761 228 577 1,566 Capital expenditures and investments (b) 613 225 1,676 2,514 (In millions) Refining &amp; Marketing Speedway Midstream Total Nine Months Ended September 30, 2017 Revenues: Third party $ 37,485 $ 14,070 $ 1,665 $ 53,220 Intersegment (c) 8,302 3 1,076 9,381 Related party 452 6  458 Segment revenues $ 46,239 $ 14,079 $ 2,741 $ 63,059 Segment income from operations $ 1,589 $ 581 $ 996 $ 3,166 Income from equity method investments (a) 10 54 139 203 Depreciation and amortization (a) 805 197 528 1,530 Capital expenditures and investments (b) 570 221 1,267 2,058 (a) Differences between segment totals and MPC totals represent amounts related to corporate and other unallocated items and are included in items not allocated to segments in the reconciliation below. (b) Capital expenditures include changes in capital accruals and investments in affiliates. See reconciliation from segment totals to MPC total capital expenditures below. (c) Management believes intersegment transactions were conducted under terms comparable to those with unaffiliated parties. The following reconciles segment income from operations to income before income taxes as reported in the consolidated statements of income: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2018 2017 2018 2017 Segment income from operations $ 1,506 $ 1,660 $ 3,836 $ 3,166 Items not allocated to segments: Corporate and other unallocated items (a) (103 ) (85 ) (283 ) (251 ) Litigation    (86 ) Impairments (b)  2 1 21 Income from operations 1,403 1,577 3,554 2,850 Net interest and other financial costs 240 158 618 465 Income before income taxes $ 1,163 $ 1,419 $ 2,936 $ 2,385 (a) Corporate and other unallocated items consists primarily of MPCs corporate administrative expenses and costs related to certain non-operating assets, except for corporate overhead expenses attributable to MPLX, which are included in the Midstream segment. Corporate overhead expenses are not allocated to the Refining &amp; Marketing and Speedway segments. (b) Includes MPCs share of gains from the sale of assets remaining from the canceled Sandpiper pipeline project. The following reconciles segment capital expenditures and investments to total capital expenditures: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2018 2017 2018 2017 Segment capital expenditures and investments $ 917 $ 729 $ 2,514 $ 2,058 Less investments in equity method investees 104 53 222 230 Plus items not allocated to segments: Corporate 7 19 42 53 Capitalized interest 21 13 55 39 Total capital expenditures (a) $ 841 $ 708 $ 2,389 $ 1,920 (a) Capital expenditures include changes in capital accruals. See Note 18 for a reconciliation of total capital expenditures to additions to property, plant and equipment as reported in the consolidated statements of cash flows. Revenues by product line were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2018 2017 2018 2017 Refined products $ 19,815 $ 16,374 $ 55,265 $ 45,689 Merchandise 1,340 1,370 3,756 3,905 Crude oil and refinery feedstocks 1,011 878 2,872 2,389 Midstream services, transportation and other 621 431 1,706 1,237 Sales and other operating revenues $ 22,787 $ 19,053 $ 63,599 $ 53,220