{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-148300","form_type":"8-K","ticker":"BSM","cik":"0001621434","company_name":"Black Stone Minerals, L.P.","filed_at":"2024-05-29T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.288251+00:00","generated_at":"2026-06-01T07:41:34.155190+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Black Stone Minerals CFO Evan Kiefer departs; Taylor DeWalch named CFO effective May 28, 2024","bullets":["CFO Evan Kiefer departed roles effective May 28, 2024; expects separation and consulting agreement.","Taylor DeWalch appointed SVP and CFO; base salary $310k, STI target ~$250k.","Dawn Smajstrla appointed Treasurer of the General Partner.","DeWalch has 12+ years oil & gas experience; joined Black Stone Feb 2023; previously at Callon, Unitex, Anadarko.","DeWalch is son of director Mark DeWalch; will enter severance agreement similar to other SVPs."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-148300","json":"https://secwatch.observer/filing/0001193125-24-148300.json","markdown":"https://secwatch.observer/filing/0001193125-24-148300.md","text":"https://secwatch.observer/filing/0001193125-24-148300.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1621434/000119312524148300/0001193125-24-148300-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1621434/000119312524148300/d836512d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T07:41:34.155190+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":"b02baf1cd3","claim":"Dawn Smajstrla was appointed as Treasurer at Black Stone Minerals, L.P..","evidence_excerpt":"The Board of Directors has appointed Taylor DeWalch as Senior Vice President and Chief Financial Officer of the General Partner and Dawn Smajstrla as Treasurer of the General Partner, effective May 28, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1621434/000119312524148300/0001193125-24-148300-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Treasurer"}],"fact_type":"executive_change"},{"claim_id":"c6629f835c","claim":"Evan Kiefer departed as Senior Vice President, Chief Financial Officer, and Treasurer at Black Stone Minerals, L.P..","evidence_excerpt":"On May 28, 2024, the Board of Directors of the general partner (the “General Partner”) of Black Stone Minerals, L.P. (the “Partnership”) and Evan Kiefer, Senior Vice President, Chief Financial Officer, and Treasurer of the General Partner, agreed that Mr. Kiefer would depart his current roles at the general partner effective May 28, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1621434/000119312524148300/0001193125-24-148300-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"agreed to depart"},{"label":"Role","value":"Senior Vice President, Chief Financial Officer, and Treasurer"}],"fact_type":"executive_change"},{"claim_id":"f5bb507350","claim":"Taylor DeWalch was appointed as Senior Vice President and Chief Financial Officer at Black Stone Minerals, L.P..","evidence_excerpt":"The Board of Directors has appointed Taylor DeWalch as Senior Vice President and Chief Financial Officer of the General Partner and Dawn Smajstrla as Treasurer of the General Partner, effective May 28, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1621434/000119312524148300/0001193125-24-148300-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Senior Vice President and Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}