| 1 | WOV | Warren & Ouachita Valley Ry. Co. | 1/1975-1/1980; eliminated 10/1980 | | NAKINA |
| 2 | WOV | Warren & Ouachita Valley Ry. Co. | 1/75-1/80; eliminated 10/80 | | NRHS |
| 3 | WOV | WARREN & OUACHITA VALLEY RWY. CO. | | | PWRC |
| 4 | WOV | Warren & Ouachita Valley Ry. Co. | | USA | TRAFFIC |
| 5 | WOVT | WOLVERINE FREIGHT SYSTEM | | | SCAC1 |
| 6 | WOVT | WOLVERINE FREIGHT SYSTEM | | | SCAC4 |