HOUSTON, TX
| Name & Role | Position | Tenure | Holdings |
|---|---|---|---|
NABORS INDUSTRIES LTD | — | Since Feb 2019 | — |
CULLEN/FROST BANKERS, INC. | — | Since Apr 2020 | — |
LYONDELLBASELL INDUSTRIES N.V. | — | Since May 2021 | — |
PAR PACIFIC HOLDINGS, INC. | — | Since Jul 2021 | — |
ANADARKO PETROLEUM CORP | — | Since May 2019 | — |
HERITAGE-CRYSTAL CLEAN, INC. | — | Since May 2021 | — |
NATIONAL ENERGY SERVICES REUNITED CORP. | — | Since Jan 2026 | — |