| 1 | RFCX | R&F Coal Co. | added 7/1980; eliminated 7/1991 | | NAKINA |
| 2 | RFCX | Rentco Division, Fruehauf Corp. | added 4/1967; 4/1970; eliminated 7/1972 | | NAKINA |
| 3 | RFCX | Rentco Division, Fruehauf Corp. | added 4/67; 4/70 | | NRHS |
| 4 | RFCX | R&F Coal Co. | added 7/80; eliminated 7/91 | | NRHS |
| 5 | RFCX | *RENTCO DIV., FRUEHAUF CORP. | | | PWRC |
| 6 | RFCX | *R & F COAL CO. (RETIRED 06-17-91) | | | PWRC |
| 7 | RFCX | +ROTHSAY FARMERS CO-OPERATIVE | | | PWRC |
| 8 | RFCX | R&F Coal | | | RSRV |
| 9 | RFCX | ROTHSAY FARMERS CO-OPERATIVE | | | SCAC4 |
