| 1 | SCMX | Shell Chemical Co. | 7/1937-1/1943 | | NAKINA |
| 2 | SCMX | Shell Chemical Div., Shell Union Oil Corp. | 1/1945-1/1946 | | NAKINA |
| 3 | SCMX | Shell Chemical Corp. | 4/1947-10/1957; eliminated 4/1960 | | NAKINA |
| 4 | SCMX | Shell Chemical Co., a Division of Shell Oil Co. | added 4/1960; 4/1961-10/1966; eliminated 7/1969 | | NAKINA |
| 5 | SCMX | Shell Oil Co. | added 7/1969; 4/1970-7/2000 | | NAKINA |
| 6 | SCMX | Shell Oil Co. U.S. (Lubricants) | added 4/2003 | | NAKINA |
| 7 | SCMX | Shell Oil Co. | 7/2005 | | NAKINA |
| 8 | SCMX | Shell Chemical Co. | 4/38-1/52 | | NRHS |
| 9 | SCMX | Shell Chemical Corp. | Oct-57 | | NRHS |
| 10 | SCMX | Shell Chemical Co., a Division of Shell Oil Co. | 4/61-10/66; eliminated 7/69 | | NRHS |
| 11 | SCMX | Shell Oil Co. | added 7/69; 4/70-7/2000 | | NRHS |
| 12 | SCMX | *SOUTH CAROLINA RAILROAD MUSEUM | | | PWRC |
| 13 | SCMX | +(SOEX) SHELL OIL COMPANY | | | PWRC |
| 14 | SCMX | Shell Oil | | | RSRV |
| 15 | SCMX | SHELL OIL COMPANY | | | SCAC4 |