| # | Entity | Status | State |
|---|---|---|---|
| 1 | 38 113 764 873 KALGOORLIE-BOULDER MINING PTY LTD |
ABN Cancelled | WA 6430 |
| 2 | 47 008 902 681 BHP BILLITON GREAT BOULDER MINES PTY LTD |
ABN Cancelled | VIC 3000 |
| 3 | 49 612 923 378 QLD BOULDER OPAL MINING PTY LTD |
ABN Active | QLD 4031 |
| 4 | 69 071 009 071 OPALVILLE BOULDER OPAL MINING PTY. LTD. |
ABN Cancelled | QLD 4350 |
| 5 | 85 112 796 308 BOULDER MINING PTY LTD |
ABN Active | NSW 2000 |
| 6 | 86 057 942 319 BOULDER OPAL MINING COMPANY PTY LTD |
ABN Cancelled | QLD 4209 |
| 7 | 72 004 379 300 BHP BILLITON WESTERN MINING INNOVATION PTY LTD GREAT BOULDER MINES LTD |
ABN Cancelled | VIC 3000 |