| 1 | SOTX | Stoll Oil Refining Co., Inc. | 8/1920-7/1954; eliminated 4/1956 | | NAKINA |
| 2 | SOTX | Southern Concrete Construction Co., Inc. | added 10/1997; eliminated 1/1998; 7/2000 (not listed) | | NAKINA |
| 3 | SOTX | Stoll Oil Refining Co., Inc. | 4/38-1/52 | | NRHS |
| 4 | SOTX | Southern Concrete Construction Co., Inc. | added 10/97; eliminated 1/98; 7/2000 | | NRHS |
| 5 | SOTX | *STOLL OIL REFINING CO. | | | PWRC |
| 6 | SOTX | *SOUTHERN CONCRETE CONSTRUCTION COMPANY | | | PWRC |
| 7 | SOTX | Southern Concrete Construction | | | RSRV |
