| 1 | CHMX | First Union Rail | added 4/2001; 7/2005 | | NAKINA |
| 2 | CHMX | Southern Illinois Railcar Co. | added 4/1995; 7/2000; eliminated 4/2001 | | NAKINA |
| 3 | CHMX | Charter Meridian Corp. | 1/1994 (not listed) | | NAKINA |
| 4 | CHMX | C.H. Masland & Sons | added 10/1978; 1/1980; eliminated 1/1986 | | NAKINA |
| 5 | CHMX | C.H. Masland & Sons | added 10/78; 1/80; eliminated 1/86 | | NRHS |
| 6 | CHMX | Charter Meridian Corp. | Jan-94 | | NRHS |
| 7 | CHMX | Southern Illinois Railcar Co. | added 4/95; 7/2000; eliminated 4/2001 | | NRHS |
| 8 | CHMX | First Union Rail | added 4/2001 | | NRHS |
| 9 | CHMX | *CHARTER MERIDIAN CORPORATION | | | PWRC |
| 10 | CHMX | *C. H. MASLAND & SONS | | | PWRC |
| 11 | CHMX | +FIRST UNION RAIL [SOUTHERN ILLINOIS RAILCAR INC] | | | PWRC |
| 12 | CHMX | C. H. Masland and Sons (First Union Rail) | | | RSRV |
| 13 | CHMX | CHARTER MERIDIAN CORPORATION | | | SCAC4 |