Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionOakworth Capital, Inc.
Latest Disclosed Ownership6,626 shares
Latest Disclosed Value $ 1,617,937
Oakworth Capital, Inc. ownership in MPC / Marathon Petroleum Corporation

On April 24, 2026 - Oakworth Capital, Inc. filed a 13F-HR form disclosing ownership of 6,626 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,617,937 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 6,626 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,626 0 0.00 1,618 50.14 0.0857
2026-01-30 2025-12-31 13F MARATHON PETE COMMON STOCK 56585A102 6,626 0 0.00 1,078 -15.66 0.0588
2025-11-04 2025-09-30 13F MARATHON PETE COMMON STOCK 56585A102 6,626 0 0.00 1,277 16.09 0.0738
2025-07-17 2025-06-30 13F MARATHON PETE COMMON STOCK 56585A102 6,626 -334 -4.80 1,101 8.48 0.0709
2025-04-24 2025-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,960 0 0.00 1,014 4.54 0.0706
2025-01-27 2024-12-31 13F MARATHON PETE COMMON STOCK 56585A102 6,960 0 0.00 971 -14.39 0.0668
2024-10-21 2024-09-30 13F MARATHON PETE COMMON STOCK 56585A102 6,960 578 9.06 1,134 2.35 0.0786
2024-07-19 2024-06-30 13F MARATHON PETE COMMON STOCK 56585A102 6,382 0 0.00 1,107 -13.85 0.0809
2024-04-22 2024-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,382 0 0.00 1,286 35.84 0.0968
2024-01-31 2023-12-31 13F MARATHON PETE COMMON STOCK 56585A102 6,382 -82 -1.27 947 -3.27 0.0759
2023-10-31 2023-09-30 13F MARATHON PETE COMMON STOCK 56585A102 6,464 -47 -0.72 978 28.85 0.0889
2023-07-28 2023-06-30 13F MARATHON PETE COMMON STOCK 56585A102 6,511 -353 -5.14 759 -17.95 0.0645
2023-05-02 2023-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,864 1,000 17.05 925 35.63 0.0828
2023-02-03 2022-12-31 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 683 16.98 0.0655
2022-10-31 2022-09-30 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 583 20.95 0.0645
2022-08-05 2022-06-30 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 482 -3.79 0.0485
2022-04-11 2022-03-31 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 501 33.24 0.0432
2022-02-07 2021-12-31 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 376 3.87 0.0320
2021-11-10 2021-09-30 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 362 2.26 0.0350
2021-07-20 2021-06-30 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 354 13.10 0.0353
2021-04-30 2021-03-31 13F MARATHON PETE COMMON STOCK 56585A102 5,864 0 0.00 313 29.34 0.0356
2021-02-12 2020-12-31 13F MARATHON PETE COMMON STOCK 56585A102 5,864 -155 -2.58 242 37.50 0.0313
2020-11-09 2020-09-30 13F MARATHON PETE COMMON STOCK 56585A102 6,019 0 0.00 176 -21.78 0.0285
2020-08-11 2020-06-30 13F MARATHON PETE COMMON STOCK 56585A102 6,019 0 0.00 225 58.45 0.0404
2020-05-07 2020-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,019 0 0.00 142 -59.66 0.0334
2020-01-31 2019-12-31 13F MARATHON PETE COMMON STOCK 56585A102 6,019 0 0.00 352 -3.56 0.0618
2019-11-13 2019-09-30 13F MARATHON PETE COMMON STOCK 56585A102 6,019 -723 -10.72 365 -3.18 0.0708
2019-08-02 2019-06-30 13F MARATHON PETE COMMON STOCK 56585A102 6,742 -241 -3.45 377 -9.59 0.0718
2019-05-06 2019-03-31 13F MARATHON PETE COMMON STOCK 56585A102 6,983 319 4.79 417 5.84 0.0854
2019-02-13 2018-12-31 13F MARATHON PETE COMMON STOCK 56585A102 6,664 1,000 17.66 394 -13.02 0.0898
2018-10-25 2018-09-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,664 0 0.00 453 14.11 0.0906
2018-08-07 2018-06-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,664 0 0.00 397 -6.59 0.0824
2018-05-09 2018-03-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,664 308 5.75 425 26.49 0.1015
2018-01-22 2017-12-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,356 -481 -8.24 336 9.80 0.0791
2017-11-08 2017-09-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,837 118 2.06 306 2.34 0.0786
2017-07-31 2017-06-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,719 -73 -1.26 299 2.40 0.0819
2017-04-26 2017-03-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,792 0 0.00 292 7.35 0.0845
2017-01-27 2016-12-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,792 0 0.00 272 15.74 0.0894
2016-10-24 2016-09-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,792 0 0.00 235 16.34 0.0814
2016-07-20 2016-06-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,792 0 0.00 202 -6.05 0.0756
2016-05-13 2016-03-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,792 326 5.96 215 -24.03 0.0859
2016-01-26 2015-12-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,466 0 0.00 283 11.86 0.1177
2015-10-29 2015-09-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,466 -40 -0.73 253 -15.95 0.1332
2015-08-14 2015-06-30 13F/A-1 MARATHON PETROLEUM WI COMMON STOCK 56585A102 5,506 2,755 100.15 301 11.07 0.1425
2015-07-14 2015-06-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,751 215
2015-05-12 2015-03-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,751 0 0.00 271 9.27 0.1252
2015-02-24 2014-12-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,751 0 0.00 248 -0.80 0.1283
2014-10-09 2014-09-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,751 0 0.00 250 16.28 0.1467
2014-07-14 2014-06-30 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,751 19 0.70 215 -9.66 0.1307
2014-04-10 2014-03-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,732 0 0.00 238 -5.18 0.1558
2014-01-27 2013-12-31 13F MARATHON PETROLEUM WI COMMON STOCK 56585A102 2,732 2,732 251 0.1774
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.