{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-074316","form_type":"8-K","ticker":"MPLX","cik":"0001552000","company_name":"MPLX LP","filed_at":"2022-03-14T23:59:59+00:00","discovered_at":"2026-05-14T18:04:06.953601+00:00","generated_at":"2026-06-26T23:12:26.407032+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"low","headline":"MPLX LP files underwriting agreement and indenture for debt issuance; terms not disclosed","bullets":["Underwriting agreement dated March 10, 2022 with Citigroup, RBC Capital Markets, and TD Securities for a new debt offering.","Twenty-fifth supplemental indenture dated March 14, 2022 with Bank of New York Mellon as trustee.","Specific terms (principal amount, interest rate, maturity) are not provided in the 8-K body.","Opinion of Jones Day on legality of the notes also filed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-074316","json":"https://secwatch.observer/filing/0001193125-22-074316.json","markdown":"https://secwatch.observer/filing/0001193125-22-074316.md","text":"https://secwatch.observer/filing/0001193125-22-074316.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1552000/000119312522074316/0001193125-22-074316-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1552000/000119312522074316/d474104d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T23:12:26.407032+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"}