1 | UCMX | United Commercial Co., Inc. | 7/1930-4/1938 | | NAKINA |
2 | UCMX | United Clays, Inc. | added 7/1990; 1/1994-7/2000; eliminated 1/2002; 7/2005 (not listed) | | NAKINA |
3 | UCMX | United Commercial Co., Inc. | Apr-38 | | NRHS |
4 | UCMX | United Clays, Inc. | added 7/90; 1/94-7/2000 | | NRHS |
5 | UCMX | UNITED CLAYS, INC. | | | PWRC |
6 | UCMX | United Clays | | | RSRV |