Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
S& S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SKA SKB SKC SKD SKE SKF SKG SKH SKI SKJ SKK SKL SKM SKN SKO SKP SKQ SKR SKS SKT SKU SKV SKW SKX SKY SKZ
SKYA SKYB SKYC SKYD SKYE SKYH SKYI SKYK SKYM SKYP SKYR SKYS SKYT SKYU SKYV SKYW SKYX
1 SKYX Nortex Refining Co. 8/1920   NAKINA
2 SKYX Skelly Oil Co. — series 10 and 15, 1001 to 1010 8/1920   NAKINA
3 SKYX Skelly Oil Co. 7/1923-7/1932   NAKINA
4 SKYX Skelly Oil Co. (Union Tank Car Co.) 7/1935   NAKINA
5 SKYX Union Tank Car Co. 7/1937 (not listed)   NAKINA
6 SKYX SKELLY OIL CO. [NORTEX REFINING CO.] (UNION TANK CAR CO.)     PWRC