| 1 | PTRX | Petrolite Corp. | added 4/1984; 1/1994-7/2005 | | NAKINA |
| 2 | PTRX | Petrolite Corp., Bareco Division | added 10/1965; 10/1966-1/1980; eliminated 4/1984 | | NAKINA |
| 3 | PTRX | Petrolite Corp., Bareco Division | added 10/65; 10/66-1/80; eliminated 4/84 | | NRHS |
| 4 | PTRX | Petrolite Corp. | added 4/84; 1/94-7/2000 | | NRHS |
| 5 | PTRX | PETROLITE CORP. | | | PWRC |
| 6 | PTRX | PETROLITE CORPORATION | | | PWRC |
| 7 | PTRX | Petrolite Corporation | | | RSRV |
| 8 | PTRX | PETROLITE CORP | | | SCAC3 |
| 9 | PTRX | PETROLITE CORPORATION | | | SCAC4 |
