1 | HWX | Wilcox Oil Co. | 1/1945-10/1957; eliminated 7/1958 | | NAKINA |
2 | HWX | H.F. Wilcox Oil & Gas Co. | 7/1923-1/1943 | | NAKINA |
3 | HWX | H.F. Wilcox Oil & Gas Co. | Apr-38 | | NRHS |
4 | HWX | Wilcox Oil Co. | 1/52-10/57; eliminated 7/58 | | NRHS |
5 | HWX | WILCOX OIL CO. [H. F. WILCOX OIL & GAS CO.] | | | PWRC |
6 | HWXL | HEWES TRANSPORTATION LLC | | | SCAC4 |
7 | HWXP | HI WAY EXPRESS INC | | | SCAC4 |