| 1 | HGCX | Southeastern Industrial Enterprises, Inc. | eliminated 10/2006 | | NAKINA |
| 2 | HGCX | Hillsboro Glass Co. | added 4/1974; 1/1975-1/1980; eliminated 10/1991 | | NAKINA |
| 3 | HGCX | Home Gas Corp. | 1/1945-4/1961; eliminated 1/1962 | | NAKINA |
| 4 | HGCX | Home Gas Corp. of Great Barrington | added 1/1962 | | NAKINA |
| 5 | HGCX | Home Gas Corp. | 1/52-4/61; eliminated 1/62 | | NRHS |
| 6 | HGCX | Home Gas Corp. of Great Barrington | added 1/62 | | NRHS |
| 7 | HGCX | Hillsboro Glass Co. | added 4/74; 1/75-1/80; eliminated 10/91 | | NRHS |
| 8 | HGCX | *HOME GAS CORP. OF GREAT BARRINGTON | | | PWRC |
| 9 | HGCX | *RETIRED 01-06-92 ATP (1255) [HILLSBORO GLASS CO.] | | | PWRC |
| 10 | HGCX | *SOUTHEASTERN INDUSTRIAL ENTERPRISES | | | PWRC |
| 11 | HGCX | Hillsboro Glass | | | RSRV |
