{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-037280","form_type":"8-K","ticker":"DMLP","cik":"0001172358","company_name":"DORCHESTER MINERALS, L.P.","filed_at":"2025-12-09T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.928451+00:00","generated_at":"2026-05-16T13:45:20.532947+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Dorchester Minerals: Co-founder McManemin retires from Board; Nance appointed, Vaughn Interim Chair","bullets":["William Casey McManemin retires from Board effective Dec 31, 2025; named Chairman Emeritus (honorary, no compensation).","Robert C. Vaughn, co-founder and current Board member, appointed Interim Chairman effective immediately.","Albert G. Nance III appointed to Board effective Jan 1, 2026; brings 38 years of oil and gas experience.","McManemin co-founded Dorchester predecessors in 1988 and served as CEO for 19 years."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-037280","json":"https://secwatch.observer/filing/0001437749-25-037280.json","markdown":"https://secwatch.observer/filing/0001437749-25-037280.md","text":"https://secwatch.observer/filing/0001437749-25-037280.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1172358/000143774925037280/0001437749-25-037280-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1172358/000143774925037280/dmlp20251209_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:45:20.532947+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"}