| 1 | CNTX | Continental Tank Car Corp. | 7/1965-7/2005; eliminated 1/2006; added 4/2006 | | NAKINA |
| 2 | CNTX | Central Tube Co. | 7/1923 | | NAKINA |
| 3 | CNTX | Continental Tank Car Corp. | 7/65-7/2000 | | NRHS |
| 4 | CNTX | *CENTRAL TUBE CO. | | | PWRC |
| 5 | CNTX | +CONTINENTAL TANK CAR CORPORATION | | | PWRC |
| 6 | CNTX | Continental Tank Car Corporation | | | RSRV |
| 7 | CNTX | CONTINENTAL TANK CAR CORP | | | SCAC3 |
| 8 | CNTX | CONTINENTAL TANK CAR CORPORATION | | | SCAC4 |
| 9 | CNTX | Continental Tank Car Corp. | | USA | TRAFFIC |