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
H& H0 H1 H2 H3 H4 H5 H6 H7 H8 H9 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ
HHA HHB HHC HHD HHE HHF HHG HHH HHI HHJ HHK HHL HHM HHN HHO HHP HHQ HHR HHS HHT HHU HHV HHW HHX HHy
HHMO HHMU HHMX
1 HHMX Golden Eagle Petroleum Co. added 1/1964; eliminated 7/1965   NAKINA
2 HHMX Panoma Corp. 1/1950 (not listed)   NAKINA
3 HHMX Hagy, Harrington & Marsh 1/1943-4/1947   NAKINA
4 HHMX Golden Eagle Petroleum Co. eliminated 7/65   NRHS
5 HHMX *HAGY, HARRINGTON & MARSH     PWRC
6 HHMX *PANOMA CORP.     PWRC
7 HHMX *GOLDEN EAGLE PETROLEUM CO.     PWRC