{"schema_version":"secwatch.filing_event.v1","accession":"0001423902-21-000048","form_type":"8-K","ticker":"WES","cik":"0001423902","company_name":"Western Midstream Partners, LP","filed_at":"2021-12-15T23:59:59+00:00","discovered_at":"2026-05-14T18:04:12.535817+00:00","generated_at":"2026-06-28T00:49:49.082569+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Director Vangolen resigns, Bennett elected Chairman; Forthuber appointed; SVP Griffie departs","bullets":["Glenn Vangolen resigns from Board effective Dec 17, 2021 due to retirement from Occidental; Peter J. Bennett elected Chairman effective Dec 14, 2021.","Frederick A. Forthuber appointed to Board effective Dec 17, 2021; will serve on ESG Committee replacing Bennett.","Charles G. Griffie, SVP Operations and Engineering, departs; no disagreement; will receive severance per Executive Severance Plan and signed release."],"urls":{"canonical":"https://secwatch.observer/filing/0001423902-21-000048","json":"https://secwatch.observer/filing/0001423902-21-000048.json","markdown":"https://secwatch.observer/filing/0001423902-21-000048.md","text":"https://secwatch.observer/filing/0001423902-21-000048.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/0001423902-21-000048-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/wes-20211213.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T00:49:49.082569+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":[{"claim_id":"612385e041","claim":"Glenn Vangolen resigned as Chairman of the Board at Western Midstream Partners, LP.","evidence_excerpt":"On December 13, 2021, Mr. Glenn Vangolen resigned effective on December 17, 2021, from the Board of Directors","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/0001423902-21-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"6bb59f1a86","claim":"Charles G. Griffie departed as Senior Vice President, Operations and Engineering at Western Midstream Partners, LP.","evidence_excerpt":"On December 15, 2021, WES announced that Mr. Charles G. Griffie, Senior Vice President, Operations and Engineering of the General Partner, will be leaving the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/0001423902-21-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"leaving"},{"label":"Role","value":"Senior Vice President, Operations and Engineering"}],"fact_type":"executive_change"},{"claim_id":"bd169a9aa3","claim":"Peter J. Bennett was elected as Chairman of the Board at Western Midstream Partners, LP.","evidence_excerpt":"the Board elected Mr. Peter J. Bennett as Chairman of the Board on December 14, 2021, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/0001423902-21-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"elected"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"d3376242ca","claim":"Frederick A. Forthuber was appointed as Director at Western Midstream Partners, LP.","evidence_excerpt":"Also effective on December 17, 2021, Frederick A. Forthuber is being appointed to the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1423902/000142390221000048/0001423902-21-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}