| 1 | UPAX | Utah Poultry Producers Cooperative Association Refrigerator Line | 7/1932 | | NAKINA |
| 2 | UPAX | Utah Poultry Producers Cooperative Association Refrigerator Line (North American Car Corp.) | 7/1935 | | NAKINA |
| 3 | UPAX | United Power Association | added 4/1982; 1/1994; eliminated 4/2000 | | NAKINA |
| 4 | UPAX | Great River Energy | added 4/2000; 7/2000-7/2005; eliminated 10/2005 | | NAKINA |
| 5 | UPAX | United Power Association | added 4/82; 1/94; eliminated 4/2000 | | NRHS |
| 6 | UPAX | Great River Energy | added 4/2000; 7/2000 | | NRHS |
| 7 | UPAX | *UTAH POULTRY PRODUCERS COOPERATIVE ASSOCIATION REFRIGERATOR LINE | | | PWRC |
| 8 | UPAX | *GREAT RIVER ENERGY [UNITED POWER ASSOCIATION] | | | PWRC |
| 9 | UPAX | United Power Association | | | RSRV |
