Association of Chemical Industry of Texas
| O'Brian, Denise | Georgia Gulf Chemicals & Vinyls, LLC |
| O'Brien, Terry | Air Products & Chemicals, Inc. |
| O'Bryan, Cristin | Total Safety US, Inc. |
| O'Connell, April | Chevron Phillips Chemical Co. LP |
| O'Dair, Steven | Intergulf Corporation |
| O'Gilvie, Joe | Albemarle Corporation |
| O'Neal, Eric | Zachry |
| O'Neill, Kevin | Webb, Murray & Associates |
| O'Riley, Kevin | Puffer-Sweiven, LP |
| O'Riley, Kevin | Puffer-Sweiven, LP |
| O'Rourke, Thomas | BASF |
| Oberlender, Terry | CITGO Petroleum Corporation |
| Okeson, William | HBS National Corporation |
| Oldbury, Heather | DuPont - Sabine River Works Plant |
| Oldenkamp, Mark | Flare Ignitors Pipeline & Refinery, LLC |
| Olds, David | TPC Group |
| Olenkiewicz, Peter | LyondellBasell Industries |
| Oliver, Danice | Certified Safety Specialists |
| Oliver, Joe | CITGO Petroleum Corporation |
| Olivier, Justin | Ecom Instruments, Inc. |
| Olson, Karen | Zephyr Environmental Corporation |
| Olson, Mark | LyondellBasell Industries |
| Olvera, Al | Brand Energy & Infrastructure Services |
| Omey, Samantha | Honeywell |
| Ong, Gary | Grayson Armature Works, Inc. |