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Marathon Petroleum

Close the combination of the Whistler Pipeline and Rio Bravo Pipeline project

Delivered by the deadline

AI-confirmed · human review in progress Independent AI checks agreed on primary SEC or regulator evidence. Records are now being reviewed by hand, starting with those our customers order.

Announced
30 Apr 2024
Due
30 Jun 2024
Delivered
29 May 2024
  • Deadline
  • Met
  • Late
  • Not met
  • Today

What the company said

“The transaction is expected to close in the second quarter of 2024, subject to receipt of required regulatory approvals and satisfaction of other customary closing conditions.”

What we found

Evidence strength A What the grades mean

The filings show the Whistler Joint Venture Transaction, including the Rio Bravo Pipeline contribution, closed on May 29, 2024, before the June 30, 2024 deadline.

  • A
    Marathon Petroleum 10-Q filed 2024-08-06 Regulatory filing · published 6 Aug 2024 · retrieved 16 Oct 2026 · kept permanently by the SEC · fingerprint 5e1bf2352bd8
    “On May 29, 2024, MPLX and its joint venture partner contributed their respective membership interest in Whistler Pipeline, LLC to a newly formed joint venture, WPC Parent, LLC, and issued a 19 percent voting interest in WPC Parent, LLC to an affiliate of Enbridge Inc. in exchange for the contributio” ✓ confirmed on the page
  • A
    Marathon Petroleum 10-K filed 2025-02-27 Regulatory filing · published 27 Feb 2025 · retrieved 16 Oct 2026 · kept permanently by the SEC · fingerprint 74f750087390
    “On May 29, 2024, MPLX and its joint venture partner contributed their respective membership interest in Whistler Pipeline, LLC to a newly formed joint venture, WPC Parent, LLC” ✓ confirmed on the page

Market reaction: the shares moved +4.9% against the S&P 500 over the three sessions around the disclosure (5 Aug 2024 to 8 Aug 2024). What this measures

Checked 16 Oct 2026.

Commitment DNA

The structured record of this commitment. Fields the company did not state are left blank rather than guessed.

Event type
Transaction other
Indicative materiality
Medium rules
Action
Close
Deliverable
Whistler Pipeline and Rio Bravo Pipeline joint venture
Language
Expected (“expects”, “plans”)
In the company’s control
Medium
Specificity
High
Conditional
Yes: subject to receipt of required regulatory approvals; satisfaction of other customary closing conditions
Depends on
Regulatory, Counterparty

How this entry was checked

  1. Commitment recordedThe company's words were matched word for word against the filing.
  2. First checkAn AI model, Claude (Anthropic), read the company's later filings and recorded the outcome with a quoted passage.
  3. Second check: agreesA different AI model, Gemini (Google), re-read the evidence without being told the outcome and reached the same answer.

Confirmed. This outcome counts towards the company's Kept Score. How verification works

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Report an error in this entry Reference: KI-C-2024-MPC-009792 · Corrections policy

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