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Best well drillers in Cascade County, Montana
Not a pay-to-play list: these are the 117 drilling companies with wells
on record in Cascade County, ranked by wells actually drilled here — 6,304 logged
wells in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC) (records as of 2026-10-02). Every number links back to
the public record.
117companies on record
40active since 2022
6,304wells in county record
| # | Company | In Cascade Co. since 2016 | All-time in county | Statewide |
|---|
| 1 | Aquasource Drilling LLC | 388 | 430 | 1,103 |
| 2 | Boland Drilling | 279 | 1,190 | 1,815 |
| 3 | Aaaa Water Well Drilling Inc. | 158 | 264 | 776 |
| 4 | Cascade Drilling LP | 112 | 112 | 718 |
| 5 | MT Dept OF Transportation | 83 | 209 | 5,869 |
| 6 | Pat Byrne Drilling Inc. | 72 | 415 | 442 |
| 7 | Montana Salinity Control Association | 71 | 147 | 2,583 |
| 8 | Aquasource Inc. LLC | 70 | 143 | 497 |
| 9 | Western Water Wells | 56 | 56 | 1,188 |
| 10 | Vista Geoscience | 52 | 52 | 52 |
| 11 | 406 Water Wells, LLC | 42 | 42 | 232 |
| 12 | HL Ventures LLC | 36 | 36 | 193 |
| 13 | Montana Highway Dept. | 32 | 33 | 370 |
| 14 | Okeefe Drilling Co. | 11 | 105 | 8,889 |
| 15 | Thomas, Dean, And Hoskins, Inc. | 9 | 21 | 74 |
| 16 | West Central Environmental Consultants | 9 | 9 | 311 |
| 17 | Corveau Drilling | 7 | 79 | 141 |
| 18 | SK Geotechnical Co. | 5 | 6 | 434 |
| 19 | Clayton Larson | 5 | 5 | 111 |
| 20 | H & L Drilling Inc. | 4 | 27 | 7,625 |
| 21 | MT Poverty Water Well Drilling | 4 | 17 | 408 |
| 22 | Lindsay Drilling Co. Inc. | 3 | 36 | 6,746 |
| 23 | A-10 Drilling | 3 | 14 | 2,353 |
| 24 | Olympus Technical Services | 3 | 3 | 178 |
| 25 | Haz Tech Drilling Inc. | 2 | 4 | 2,139 |
| 26 | Central Drilling Inc. | 1 | 5 | 1,106 |
| 27 | Rock Creek Drilling Inc. | 1 | 2 | 977 |
| 28 | Aaqua Drilling Inc. | 1 | 1 | 5,299 |
| 29 | Vidic Drilling Inc. | 1 | 1 | 1,065 |
| 30 | Byrne | — | 1,109 | 1,232 |
| 31 | Poverty Drilling | — | 451 | 992 |
| 32 | Rafferty | — | 157 | 193 |
| 33 | Franklin | — | 149 | 162 |
| 34 | A & G Drilling Inc. | — | 123 | 173 |
| 35 | Sure Water Drilling | — | 61 | 125 |
| 36 | Mendenhall Drilling | — | 57 | 70 |
| 37 | Jennings Drilling Co. | — | 55 | 248 |
| 38 | Maxim Technologies | — | 45 | 491 |
| 39 | Treasure State Drilling | — | 43 | 1,444 |
| 40 | Nicka Well Drilling | — | 42 | 160 |
| 41 | Delta | — | 41 | 89 |
| 42 | Gordon Drilling Inc. | — | 34 | 1,128 |
| 43 | Murrays Well Service | — | 34 | 376 |
| 44 | Red Tiger Drilling | — | 33 | 3,157 |
| 45 | Brown | — | 28 | 247 |
| 46 | Aqua Source | — | 28 | 117 |
| 47 | Anderson Drilling | — | 23 | 1,057 |
| 48 | Pickett | — | 22 | 347 |
| 49 | Taylor | — | 22 | 88 |
| 50 | Hansen Environmental Drilling | — | 18 | 1,197 |
| 51 | Kornec | — | 18 | 135 |
| 52 | Thatcher Drilling Co. | — | 17 | 362 |
| 53 | Whitaker Well Drilling | — | 17 | 72 |
| 54 | Chen-Northern, Inc. | — | 12 | 205 |
| 55 | Sommer | — | 10 | 131 |
| 56 | Bailey And Okeefe Drilling Co. | — | 10 | 82 |
| 57 | PC Exploration | — | 10 | 47 |
| 58 | Debuff Drilling | — | 9 | 443 |
| 59 | Lloyd | — | 8 | 130 |
| 60 | Boart Longyear Company | — | 8 | 96 |
| 61 | Mahlum Drilling | — | 7 | 142 |
| 62 | Hand | — | 7 | 63 |
| 63 | Delta Engineering P.c. | — | 7 | 34 |
| 64 | Billings | — | 6 | 367 |
| 65 | SB RL | — | 6 | 63 |
| 66 | Bush Drilling | — | 6 | 61 |
| 67 | MT Department OF Transportation | — | 6 | 29 |
| 68 | Sharp Drilling Inc. | — | 5 | 772 |
| 69 | MT Bureau OF Mines & Geology | — | 5 | 620 |
| 70 | Martin Well Drilling | — | 5 | 1,451 |
| 71 | Nelson | — | 5 | 53 |
| 72 | Cni | — | 5 | 39 |
| 73 | Erickson Drilling & Pump Co. | — | 4 | 803 |
| 74 | Sudan Drilling | — | 4 | 1,984 |
| 75 | Schmidt | — | 4 | 114 |
| 76 | Atlatl Inc. | — | 4 | 86 |
| 77 | P & S | — | 4 | 42 |
| 78 | Hayes Drilling | — | 3 | 1,938 |
| 79 | Jerome And Okeefe Drilling Co. | — | 3 | 1,032 |
| 80 | Starz | — | 3 | 71 |
| 81 | Raging Wolf Drilling | — | 3 | 57 |
| 82 | Chris Boland Drilling Co. | — | 3 | 37 |
| 83 | Liberty Drilling & Pump Co. | — | 2 | 2,646 |
| 84 | Johnson | — | 2 | 658 |
| 85 | Esd Inc. | — | 2 | 284 |
| 86 | Terracon | — | 2 | 122 |
| 87 | M.t. | — | 2 | 116 |
| 88 | Munson Drilling Co. | — | 2 | 56 |
| 89 | Bridger Drilling Inc. | — | 1 | 2,385 |
| 90 | Douglas Drilling | — | 1 | 1,061 |
| 91 | Singley Drilling | — | 1 | 837 |
| 92 | Mayes Drilling Inc. | — | 1 | 1,142 |
| 93 | H & H Drilling | — | 1 | 1,084 |
| 94 | HI-Line Drilling Inc. | — | 1 | 1,585 |
| 95 | Water & Environmental Technologies | — | 1 | 113 |
| 96 | Hydrometrics Inc. | — | 1 | 194 |
| 97 | Haggerty Drilling | — | 1 | 3,618 |
| 98 | Hillman Drilling | — | 1 | 2,321 |
| 99 | Brazill Drilling | — | 1 | 674 |
| 100 | Dynamite Drilling | — | 1 | 631 |
| 101 | Hulbert | — | 1 | 558 |
| 102 | Dept OF Transportation | — | 1 | 527 |
| 103 | A.f. Welch Driling | — | 1 | 425 |
| 104 | Davis Drilling | — | 1 | 385 |
| 105 | Briggs Drilling | — | 1 | 381 |
| 106 | Joe Liss Drilling | — | 1 | 313 |
| 107 | Montana | — | 1 | 176 |
| 108 | Porter Drilling | — | 1 | 126 |
| 109 | Grizzly Drilling | — | 1 | 81 |
| 110 | P & S Drilling | — | 1 | 49 |
| 111 | Aqua Drilling And Pump | — | 1 | 40 |
| 112 | Department OF Transportation | — | 1 | 35 |
| 113 | Amec Geomatrix Inc. | — | 1 | 31 |
| 114 | Water System Drilling Inc. | — | 1 | 30 |
| 115 | A & M | — | 1 | 30 |
| 116 | M.t. Drilling | — | 1 | 29 |
| 117 | Hunter | — | 1 | 26 |
Ranked by wells drilled in Cascade County since 2016 (then all-time), from the full GWIC
record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and
the ranking below them is never reordered.
Who drills the most wells in Cascade County?
Aquasource Drilling LLC has drilled the most Cascade County wells in the recent record — 388 since 2016, 430 in the county all-time.
How many well drilling companies work in Cascade County?
117 companies in the GWIC record have drilled wells in Cascade County; 40 of them have drilled somewhere in Montana since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Cascade County?
The median drilled depth in Cascade County is 111 ft, based on 7,186 recorded wells. Depths, water levels, and yields are on the Cascade County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on
the Cascade County wells page.
Drill in Cascade County?
If your company is on this list, your profile is free to claim — confirm your details and add your
contact information so Cascade County property owners reach you directly.
Claim your profile Free to claim · built from GWIC public well-log records.