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Executive Record

Maryann T. Mannen

Chief executive: Marathon Petroleum Corp (1 Aug 2024 to present)

40commitments announced
6with a clear outcome
4met on time
–rate shown after 15 outcomes

Commitments are credited to the chief executive in office on the day they were announced. Where a deadline fell after the leader left, the entry is marked. Sources for each leadership change: Marathon Petroleum Corp filing.

Commitments announced under Maryann T. Mannen

Marathon Petroleumannounced 5 May 2026 Complete the El Paso FCC upgrade Met30 Jun 2026
Marathon Petroleumannounced 5 May 2026 Complete the Robinson jet project Being checked30 Sep 2026
Marathon Petroleumannounced 5 May 2026 Complete the Titan Complex expansion Open31 Dec 2026
Marathon Petroleumannounced 5 May 2026 Complete the Galveston Bay Distillate Hydrotreater Open31 Dec 2027
Marathon Petroleumannounced 3 Feb 2026 Complete the yield improvement project at the El Paso refinery Met30 Jun 2026
Marathon Petroleumannounced 3 Feb 2026 Complete the Bay Runner pipeline Being checked30 Sep 2026
Marathon Petroleumannounced 3 Feb 2026 Complete the Harmon Creek III gas processing plant Being checked30 Sep 2026
Marathon Petroleumannounced 3 Feb 2026 Complete the Blackcomb pipeline Open31 Dec 2026
Marathon Petroleumannounced 3 Feb 2026 Complete the product export flexibility project at the Garyville refinery Open31 Dec 2027
Marathon Petroleumannounced 3 Feb 2026 Complete the feedstock optimization project at the Garyville refinery Open31 Dec 2027
Marathon Petroleumannounced 3 Feb 2026 Complete the Traverse pipeline Open31 Dec 2027
Marathon Petroleumannounced 3 Feb 2026 Complete the Marcellus Gathering System expansion Open30 Jun 2028
Marathon Petroleumannounced 3 Feb 2026 Complete the Eiger Express pipeline Open30 Jun 2028
Marathon Petroleumannounced 3 Feb 2026 Complete the first Gulf Coast fractionation facility Open31 Dec 2028
Marathon Petroleumannounced 3 Feb 2026 Complete the Gulf Coast LPG export terminal Open31 Dec 2028
Marathon Petroleumannounced 3 Feb 2026 Complete the Secretariat II gas processing plant Open31 Dec 2028
Marathon Petroleumannounced 3 Feb 2026 Complete the Rio Bravo pipeline Open31 Dec 2029
Marathon Petroleumannounced 3 Feb 2026 Complete the second Gulf Coast fractionation facility Open31 Dec 2029
Marathon Petroleumannounced 4 Nov 2025 Bring Titan Complex sour gas treating plant online Open31 Dec 2026
Marathon Petroleumannounced 4 Nov 2025 Complete BANGL pipeline expansion Open31 Dec 2026
Marathon Petroleumannounced 4 Nov 2025 Bring Eiger Express natural gas pipeline into service Open30 Jun 2028
Marathon Petroleumannounced 5 Aug 2025 Close the acquisition of Northwind Midstream Not met30 Sep 2025
Marathon Petroleumannounced 5 Aug 2025 Bring Northwind Midstream sour gas treating capacity online Open31 Dec 2026
Marathon Petroleumannounced 5 Aug 2025 Bring LPG export terminal into service Open31 Dec 2028
Marathon Petroleumannounced 6 May 2025 Close acquisition of additional 5% stake in Matterhorn Express pipeline No record found30 Jun 2025
Marathon Petroleumannounced 6 May 2025 Close acquisition of 55% interest in BANGL, LLC Met31 Jul 2025
Marathon Petroleumannounced 6 May 2025 Complete Los Angeles refinery utility integration and modernization project Met31 Dec 2025
Marathon Petroleumannounced 6 May 2025 Complete Robinson refinery jet fuel flexibility project Open31 Dec 2026
Marathon Petroleumannounced 6 May 2025 Bring BANGL pipeline expansion online Open31 Dec 2026
Marathon Petroleumannounced 6 May 2025 Bring Traverse Pipeline into service Open31 Dec 2027
Marathon Petroleumannounced 6 May 2025 Bring Gulf Coast fractionation facilities into service Open31 Dec 2029
Marathon Petroleum Corpannounced 4 Feb 2025 Bring Secretariat processing plant online in Permian basin Late31 Dec 2025
Marathon Petroleum Corpannounced 4 Feb 2025 Bring Harmon Creek III processing plant and de-ethanizer online in Northeast Open31 Dec 2026
Marathon Petroleum Corpannounced 4 Feb 2025 Bring Blackcomb and Rio Bravo pipelines online for Permian to Gulf Coast natural gas transport Open31 Dec 2026
Marathon Petroleum Corpannounced 4 Feb 2025 Expand BANGL NGL pipeline from 250 thousand bpd to 300 thousand bpd capacity Open31 Dec 2026
Marathon Petroleum Corpannounced 4 Feb 2025 Bring LPG export terminal and associated pipeline online with ONEOK partnership Open31 Dec 2028
Marathon Petroleum Corpannounced 4 Feb 2025 Bring fractionation complex online at Galveston Bay with two 150 thousand bpd facilities Open31 Dec 2029
Marathon Petroleumannounced 5 Nov 2024 Complete expansion of the BANGL pipeline to 250 thousand barrels per day No record found31 Mar 2025
Marathon Petroleumannounced 5 Nov 2024 Bring the Blackcomb and Rio Bravo natural gas pipelines into service Open31 Dec 2026
Marathon Petroleumannounced 5 Nov 2024 Reach 800 thousand barrels per day of fractionation capacity in the Northeast Open31 Dec 2026

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