| 1 | PFSX | Private Fuel Storage, LLC | added 7/2001; 7/2005; eliminated 1/2006 | | NAKINA |
| 2 | PFSX | Productos Forestales, S.A. | 1/1950-7/1965; eliminated 10/1966; 10/1966 (not listed) | | NAKINA |
| 3 | PFSX | Productos Forestales, S.A. | 1/52-7/65; eliminated 10/66 | | NRHS |
| 4 | PFSX | Private Fuel Storage, LLC | added 7/2001 | | NRHS |
| 5 | PFSX | *PRODUCTOS FORESTALES, SA | | | PWRC |
| 6 | PFSX | +PRIVATE FUEL STORAGE, LLC | | | PWRC |
| 7 | PFSX | Private Fuel Storage | | | RSRV |
| 8 | PFSX | PRODUCTOS FORESTALES S A | | | SCAC3 |
| 9 | PFSX | PRIVATE FUEL STORAGE LLC | | | SCAC4 |