| Department | Name | Phone | Campus | |
|---|---|---|---|---|
| OKLAHOMA COUNTY EXT CENTER | LADONNA HINES | 405-713-1125 | OSU Stillwater | |
| OKLAHOMA CROP IMPROVEMENT ASSOC. | OKLAHOMA CROP IMPROVEMENT ASSOC. | 405-744-7108 | ocia@okcrop.com | OSU Stillwater |
| OKLAHOMA EPSCOR | Kevin Wagner | 405-744-9964 | kevin.wagner@okstate.edu | OSU Stillwater |
| OKLAHOMA FOUNDATION SEED STOCKS INC. | OKLAHOMA FOUNDATION SEED STOCKS INC | 405-744-7741 | ofss@ofssinc.com | OSU Stillwater |
| OKLAHOMA GARDENING | CASEY HENTGES | 405-744-5409 | oklahomagardening@okstate.edu | OSU Stillwater |
| OKLAHOMA ORAL HISTORY RESEARCH PROGRAM | SARAH MILLIGAN | 405-744-9778 | liboh@okstate.edu | OSU Stillwater |
| Oklahoma Water Resources Center | Kevin Wagner | 405-744-7093 | water@okstate.edu | OSU Stillwater |
| OKMULGEE COUNTY EXT CENTER | 918-756-1958 | OSU Stillwater | ||
| ONLINE GERMAN | 405-744-7781 | OSU Stillwater | ||
| ONLINE SPANISH | 405-744-3775 | OSU Stillwater |