1 | STDX | Standard Steel Car Co. | 7/1923 | | NAKINA |
2 | STDX | Standard Steel Car Corp. | 7/1930-7/1932 | | NAKINA |
3 | STDX | Standard Fuels, Inc. | added 1/1960; 4/1961-10/1966; eliminated 1/1969 | | NAKINA |
4 | STDX | Mobil Oil Corp. | added 1/1969; 4/1970; eliminated 7/1970 | | NAKINA |
5 | STDX | Standard Fuels, Inc. | added 1/60; 4/61-10/66; eliminated 1/69 | | NRHS |
6 | STDX | Mobil Oil Corp. | added 1/69; 4/70; eliminated 7/70 | | NRHS |
7 | STDX | *STANDARD STEEL CAR CORP. | | | PWRC |
8 | STDX | *MOBIL OIL CORP. [STANDARD FUELS, INC.] | | | PWRC |