{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-218171","form_type":"8-K","ticker":"MPLX","cik":"0001552000","company_name":"MPLX LP","filed_at":"2022-08-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:56.132186+00:00","generated_at":"2026-06-24T00:49:29.878057+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"low","headline":"MPLX enters into debt underwriting agreement; terms undisclosed","bullets":["Underwriting agreement dated Aug 8, 2022 with Barclays, Mizuho, Wells Fargo as representatives of underwriters.","Twenty-sixth supplemental indenture dated Aug 11, 2022 with BNY Mellon as trustee, including form of note.","Opinion of Jones Day filed as exhibit; no principal amount, interest rate, or maturity disclosed in filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-218171","json":"https://secwatch.observer/filing/0001193125-22-218171.json","markdown":"https://secwatch.observer/filing/0001193125-22-218171.md","text":"https://secwatch.observer/filing/0001193125-22-218171.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1552000/000119312522218171/0001193125-22-218171-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1552000/000119312522218171/d375931d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-24T00:49:29.878057+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}