Hayes Drilling
Recorded as the driller on 1,920 water wells across 12 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Park County. Well-log records span 1947–2026.
Counties served
Wells drilled by Hayes Drilling, by county, across the full record.
| County | Wells drilled |
|---|---|
| Park County | 1,598 |
| Gallatin County | 235 |
| Sweet Grass County | 28 |
| Meagher County | 27 |
| Madison County | 13 |
| Stillwater County | 7 |
| Broadwater County | 4 |
| Cascade County | 3 |
| Lewis and Clark County | 1 |
| Lincoln County | 1 |
| Silver Bow County | 1 |
| Wheatland County | 1 |
Well characteristics
Across the wells Hayes Drilling has drilled, the median depth is 152 ft (middle half 79 ft–240 ft), median tested yield 35 gpm, and median static water level 43 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Hayes Drilling, straight from the public MBMG record:
"Records span 1947–2026" refers to the earliest and latest well logs attributed to this company in the MBMG database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.
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