{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-023281","form_type":"8-K","ticker":"MPC","cik":"0001510295","company_name":"Marathon Petroleum Corp","filed_at":"2025-02-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.840698+00:00","generated_at":"2026-05-26T23:59:13.267583+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":"Marathon Petroleum files underwriting agreement for debt offering; no terms disclosed","bullets":["Filed under Item 8.01: Underwriting Agreement, Tenth Supplemental Indenture, and legal opinion.","No principal amount, interest rate, or maturity date provided in the filing.","Debt issuance will be made under existing S-3 shelf registration statement.","Lead underwriters: Wells Fargo, Citigroup, and MUFG Securities Americas."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-023281","json":"https://secwatch.observer/filing/0001193125-25-023281.json","markdown":"https://secwatch.observer/filing/0001193125-25-023281.md","text":"https://secwatch.observer/filing/0001193125-25-023281.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1510295/000119312525023281/0001193125-25-023281-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1510295/000119312525023281/d848252d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T23:59:13.267583+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"}