secwatch.observer — SEC 8-K summary
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Issuer:     MPLX LP (MPLX)
CIK:        0001552000
Form:       8-K
Filed at:   2025-08-11T23:59:59+00:00
Accession:  0001193125-25-177649
Event type: debt
Sentiment:  neutral
Materiality: 0.50
Item codes: 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

MPLX LP executes underwriting agreement and supplemental indentures for new debt issuance
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- Underwriting agreement dated Aug 7, 2025 with J.P. Morgan, Goldman Sachs, BofA, Mizuho, TD, Wells Fargo as representatives.
- Four supplemental indentures (32nd through 35th) dated Aug 11, 2025 with Bank of New York Mellon as trustee.
- Debt issued under existing S-3 registration statement; terms (principal, rate, maturity) not disclosed in filing summary.
- Proceeds not specified; assumed general corporate purposes.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1552000/000119312525177649/0001193125-25-177649-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1552000/000119312525177649/d38882d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-177649

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