| OKLAHOMA MEDICAL EVALUATION SERVICES, INC. | — | 1900703202 | 2002-12-10 | Dissolved | |
| OKLAHOMA MEDICAL SUPPLIES & EQUIPMENT, INC | — | 1900694445 | 2002-07-26 | Inactive | |
| OKLAHOMA MINI STORAGE ASSOCIATION | — | 2100681421 | 2002-01-23 | Active | |
| OKLAHOMA MORTGAGE ASSOCIATES LLC | — | 3500695236 | 2002-08-12 | Canceled | |
| OKLAHOMA MOTORSPORTS, LLC | — | 3500689991 | 2002-05-21 | Canceled | |
| OKLAHOMA MOUNTAIN BIKE PATROL, INC. | — | 2100697051 | 2002-09-06 | Active | |
| OKLAHOMA MRI INTERPRETATION, LLC | — | 3500702457 | 2002-11-27 | Dissolved | |
| OKLAHOMA MUD CONSULTING INC. | — | 1900691540 | 2002-06-17 | Inactive | |
| OKLAHOMA MUSIC LLC | — | 3500696447 | 2002-08-27 | Canceled | |
| OKLAHOMA NARAL | — | 4300680884 | 2002-01-31 | Inactive | |
| OKLAHOMA NATIONAL BOARD CERTIFIED TEACHERS ASSOCIATION | — | 2100691099 | 2002-06-10 | Active | |
| OKLAHOMA NATIVE AMERICAN BASKETWEAVERS ASSOCIATION | — | 2100701748 | 2002-11-15 | Active | |
| OKLAHOMA NATIVE EDUCATION INSTITUTE, INC. | — | 2100680243 | 2002-01-07 | Active | |
| OKLAHOMA NETWORK ACADEMY, INC. | — | 1900680906 | 2002-02-04 | Inactive | |
| OKLAHOMA NOTARY SERVICES, INC. | — | 1900687808 | 2002-04-30 | Dissolved | |
| OKLAHOMA OIL & GAS INVESTMENTS, L.L.C. | — | 3500685492 | 2002-03-21 | Canceled | |
| OKLAHOMA ONLINE ADS, INC. | — | 1900701200 | 2002-11-05 | Dissolved | |
| OKLAHOMA ORTHOPAEDIC ONCOLOGY, P.C. | — | 2200701444 | 2002-11-12 | Active | |
| OKLAHOMA ORTHOPEDICS & SPORTS MEDICINE, P.C. | — | 2200691638 | 2002-06-19 | Inactive | |
| OKLAHOMA PAGEANT ASSOCIATION, INC. | — | 2100683417 | 2002-02-28 | Active | |
| OKLAHOMA PEST MANAGEMENT, INC. | — | 1900696133 | 2002-08-22 | Inactive | |
| OKLAHOMA PHYSICIANS ASSOCIATES LLC | — | 3500703371 | 2002-12-12 | Dissolved | |
| OKLAHOMA PHYSICIANS RESOURCE/RESEARCH NETWORK, INC. | — | 2100701497 | 2002-11-12 | Dissolved | |
| OKLAHOMA POLICE AND FIRE ATHLETIC ASSOCIATION, INC. | — | 2100699744 | 2002-10-16 | Active | |
| OKLAHOMA PRECISION BOOKKEEPING, PAYROLL SERVICE, AND TAXES | — | 3600687014 | 2002-04-09 | Active | |
| OKLAHOMA PRIDE ENTERPRISES L.L.C. | — | 3500693469 | 2002-07-12 | Canceled | |
| OKLAHOMA PRODUCE CO. | — | 1900687440 | 2002-04-16 | Inactive | |
| OKLAHOMA PROPERTY APPRAISERS LLC | — | 3500695153 | 2002-08-07 | Canceled | |
| OKLAHOMA REALTY DEVELOPMENT COMPANY, L.L.C. | — | 3500690289 | 2002-05-28 | Canceled | |
| OKLAHOMA REGIONAL JET CENTER, LLC | — | 3500691714 | 2002-06-18 | Canceled | |
| OKLAHOMA REHAB & THERAPY CENTER, L.L.C. | — | 3500685105 | 2002-03-18 | Dissolved | |
| OKLAHOMA RENEWABLE ENERGY FOUNDATION | — | 2100679778 | 2002-01-16 | Active | |
| OKLAHOMA RESTAURANTS, L.L.C. | — | 3500685956 | 2002-03-29 | Canceled | |
| OKLAHOMA RESTORATION SOCIETY | — | 2100680317 | 2002-01-24 | Active | |
| OKLAHOMA RURAL COMMUNITY ACCESS NETWORK | — | 3600702080 | 2002-11-20 | Active | |
| OKLAHOMA RURAL EMS ASSOCIATION | — | 2100688844 | 2002-05-03 | Active | |
| OKLAHOMA SASIXP USER GROUP, INC. | — | 2100691166 | 2002-06-10 | Active | |
| OKLAHOMA SCHOOL FOR THE DEAF - STATEWIDE ALUMNI ASSOCIATION | — | 2100688565 | 2002-05-10 | Active | |
| OKLAHOMA SCHOOL FOR THE DEAF ALUMNI ASSOCIATION, INC. | — | 2100688124 | 2002-04-25 | Active | |
| OKLAHOMA SCHOOL FOR THE DEAF, O.S.D. ALUMNI, INC. | — | 2100686756 | 2002-04-04 | Active | |
| OKLAHOMA SECRETARIAL SERVICES | — | 3600694199 | 2002-07-24 | Active | |
| OKLAHOMA SHAVE ICE | — | 3600693827 | 2002-07-18 | Active | |
| OKLAHOMA SIDING SUPPLY, INC. | — | 1900689419 | 2002-05-13 | Dissolved | |
| OKLAHOMA SMALL BUSINESS NEWS, INC. | — | 1900687221 | 2002-04-12 | Inactive | |
| OKLAHOMA SONOGRAPHIC IMAGING, L.L.C. | — | 3500687385 | 2002-04-15 | Active | SHAWNEE |
| OKLAHOMA SPACEFRAME, L.L.C. | — | 3500694933 | 2002-08-05 | Canceled | |
| OKLAHOMA SPECIAL WEAPONS LLC | — | 3500701179 | 2002-11-06 | Canceled | |
| OKLAHOMA SPECIALTY BEEF, INC. | — | 2800692968 | 2002-07-05 | Inactive | |
| OKLAHOMA SPINE & REHABILITATION, P.C. | — | 2200696790 | 2002-09-04 | Inactive | |
| OKLAHOMA SPUD AT PARK CENTRE, INC. | — | 1900691793 | 2002-06-19 | Inactive | |