| 1 | OLB | Omaha, Lincoln and Beatrice Ry. Co. | added 10/1974; 1/1975-7/2005 | | NAKINA |
| 2 | OLB | Omaha, Lincoln and Beatrice Ry. Co. | added 10/74; 1/75-7/2000 | | NRHS |
| 3 | OLB | OMAHA, LINCOLN & BEATRICE RAILWAY COMPANY | | | PWRC |
| 4 | OLB | Omaha, Lincoln and Beatrice Railway | | | RSRV |
| 5 | OLBC | OLIVER BUS CO (DIV OF R & R TRUCKIN | | | SCAC3 |
| 6 | OLBC | OLIN, LARRY M | | | SCAC4 |
| 7 | OLBE | OLD BRIDGE EXPRESS | | | SCAC3 |
| 8 | OLBH | OLSEN BROTHERS INC | | | SCAC3 |
| 9 | OLBI | OCEAN LINE OF BERMUDA INC. | | | SCAC3 |
| 10 | OLBK | OLSON BROS TRUCKING | | | SCAC3 |
| 11 | OLBO | OLSEN, W TRANSFER | | | SCAC3 |
| 12 | OLBZ | OLD BEN #25 MINE | | | PWRC |
