| 1 | HHCC | HYDRO TECH INC | | | SCAC4 |
| 2 | HHCE | H & H COOL EXPRESS LLC | | | SCAC4 |
| 3 | HHCG | HUNGERFORD HEATING/ COOLING | | | SCAC4 |
| 4 | HHCH | HH HAULING | | | SCAC4 |
| 5 | HHCL | HEADHAUL.COM LLC | | | SCAC4 |
| 6 | HHCO | HEINZ, H J COMPANY OF CANADA LTD | | | SCAC4 |
| 7 | HHCR | HIS & HERS COACHWAYS INC | | | SCAC4 |
| 8 | HHCS | HIGH HILLS COURIER SERVICE LIMITED | | | SCAC4 |
| 9 | HHCV | H & H CONTAINER SERVICES LLC | | | SCAC4 |
| 10 | HHCX | Flint Hills Resources LP | added 1/2009 | | NAKINA |
| 11 | HHCX | Huntsman LLC | added 7/2003; 7/2005; eliminated 1/2009 | | NAKINA |
| 12 | HHCX | Champlin Petroleum Co. | added 7/1965; 7/1965-4/1970; eliminated 4/1972 | | NAKINA |
| 13 | HHCX | Champlin Oil & Refining Co. | added 4/1957; 10/1957-4/1961; eliminated 7/1965 | | NAKINA |
| 14 | HHCX | Champlin Refining Co. | 7/1935-7/1954; eliminated 4/1957 | | NAKINA |
| 15 | HHCX | H.H.C. Equipment Co. | 7/1932 | | NAKINA |
| 16 | HHCX | Champlin Tank Car Co. | 7/1930 | | NAKINA |
| 17 | HHCX | Champlin Refining Co. | 8/1920-7/1923 | | NAKINA |
| 18 | HHCX | Champlin Refining Co. | 4/38-1/52; eliminated 4/57 | | NRHS |
| 19 | HHCX | Champlin Oil & Refining Co. | added 4/57; 10/57-4/61; eliminated 7/65 | | NRHS |
| 20 | HHCX | Champlin Petroleum Co. | added 7/65; 7/65-4/70; eliminated 4/72 | | NRHS |
| 21 | HHCX | *CHAMPLIN REFINING CO. [H.H.C. EQUIPMENT CO.] | | | PWRC |
| 22 | HHCX | +HUNTSMAN LLC | | | PWRC |
| 23 | HHCX | Huntsman | | | RSRV |
| 24 | HHCX | CHAMPLIN PETROLEUM CO | | | SCAC3 |
| 25 | HHCX | HUNTSMAN LLC | | | SCAC4 |
