Mccollum Mark A
SEC-identified person · CIK 1215888 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| Seadrill Ltd SDRL | Director | filed 2025–2026 |
| Oneok INC /NEW/ OKE | Director | filed 2026–2026 |
| Westlake Corp WLK | Director | filed 2018–2025 |
| Marathon OIL Corp MRO | Director | filed 2022–2024 |
| Weatherford International plc WFTLF | Director · President and CEO | filed 2017–2019 |
| Exterran Holdings INC. EXH | Director | filed 2009–2018 |
| Halliburton CO HAL | Senior VP, Chief Acctg. Off. | filed 2006–2017 |
| Universal Compression Partners, L.P. UCLP | Director | filed 2006–2009 |
| KBR, INC. KBR | Director | filed 2006–2006 |
All roles under one Commission-assigned identifier - the same person by the SEC's own record, not by name matching. From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.