Owner Name History for Serial Number 521440031010
| 2006... | PRATT, RICHARD W |
| 2004-2005 | PRATT, RICHARD W |
| 1997-2003 | PRATT, RICHARD W |
| 1997NV | PRATT, RICHARD W |
| 1993-1996 | PRATT, RICHARD W |
| 1993NV | SUNRIDGE DEVELOPMENT CORPORATION |
| 1989-1992 | BOW VALLEY DEV CORP |
| 1988 | BOW VALLEY DEV CORP |
| 1986-1987 | BOW VALLEY DEV CORP |
| 1980-1985 | BOW VALLEY COAL RESOURCES INC |
