| NORTH ELKHORN RANCH UNIT 2203 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2202 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2801 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2803 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2804 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2802 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2702 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2201 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2904 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2903 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2901 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2004 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2902 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2001 | BILLINGS |
| FEDERAL 16-21 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1801 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 3402 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1704 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 3301 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1604 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1603 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2002 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 3302 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 0804 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1703 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1504 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2103 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2101 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2102 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1601 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1904 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1701 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2703 | BILLINGS |
| FEDERAL 19-3 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1804 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1602 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1503 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 0904 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2003 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2104 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 0901H | BILLINGS |
| W. F. HAMILTON FED. COM. 1 | BILLINGS |
| 9207 JV-P ELKHORN 1 | BILLINGS |
| NORTH ELKHORN FED. 1 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2005 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2006 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2105 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2805H | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2204H | BILLINGS |
| NORTH ELKHORN RANCH UNIT 1605 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2106 | BILLINGS |
| NORTH ELKHORN RANCH UNIT 2806H | BILLINGS |
| NORTH ELKHORN RANCH UNIT 3303H | BILLINGS |
| ANDERSON BUTTE FEDERAL 11-17TFH | BILLINGS |
| NERU 0904ERH | BILLINGS |
| NERU 2102X | BILLINGS |
| NERU 1504H | BILLINGS |
| NERU 1804H | BILLINGS |
| NERU 1701H | BILLINGS |