| 1 | LOWX | Tosco Corp. | added 7/1979; 1/1980; eliminated 4/1987 | | NAKINA |
| 2 | LOWX | Lion Oil Division of Tosco Corp. | added 10/1978; eliminated 7/1979 | | NAKINA |
| 3 | LOWX | Lion Oil Co., subsidiary of Tosco Corp. | eliminated 10/1978 | | NAKINA |
| 4 | LOWX | Lion Oil Co., subsidiary of the Oil Shale Corp. | added 7/1976 | | NAKINA |
| 5 | LOWX | Lion Oil Co., subsidiary of the Oil Shale Corp. | added 7/76 | | NRHS |
| 6 | LOWX | Lion Oil Co., subsidiary of Tosco Corp. | eliminated 10/78 | | NRHS |
| 7 | LOWX | Lion Oil Division of Tosco Corp. | added 10/78; eliminated 7/79 | | NRHS |
| 8 | LOWX | Tosco Corp. | added 7/79; 1/80; eliminated 4/87 | | NRHS |
| 9 | LOWX | TOSCO CORP. [LION OIL CO.] | | | PWRC |
| 10 | LOWX | Tosco Corporation | | | RSRV |