| 1 | OKEA | OKEANOPOROS CORP | | | SCAC3 |
| 2 | OKEE | OKEEFE, TERRANCE J | | | SCAC3 |
| 3 | OKEL | OK EXPRESS LTD | | | SCAC3 |
| 4 | OKEN | OHIO KENTUCKY STEEL CORPORATION | | | SCAC4 |
| 5 | OKEQ | OKEEFE, CASEY | | | SCAC3 |
| 6 | OKET | OKAPI EXPRESS TRUCKING | | | SCAC4 |
| 7 | OKEX | OKEX, Inc. | added 7/1976; 1/1980; eliminated 7/1982 | | NAKINA |
| 8 | OKEX | Okee, Inc. | added 7/1971; 1/1975; eliminated 7/1976 | | NAKINA |
| 9 | OKEX | Okee, Inc. | Jan-75 | | NRHS |
| 10 | OKEX | OKEX, Inc. | 1/80; eliminated 7/82 | | NRHS |
| 11 | OKEX | OKEX, INC. (OKEE, INC.) | | | PWRC |
