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Best well drillers in Sweet Grass County, Montana
Not a pay-to-play list: these are the 71 drilling companies with wells
on record in Sweet Grass County, ranked by wells actually drilled here — 1,908 logged
wells in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC) (records as of 2026-07-27). Every number links back to
the public record.
71companies on record
32active since 2022
1,908wells in county record
| # | Company | In Sweet Grass Co. since 2016 | All-time in county | Statewide |
|---|
| 1 | Birchell Drilling | 171 | 847 | 1,046 |
| 2 | Thompson Drilling & Pump | 73 | 73 | 82 |
| 3 | Aaqua Drilling Inc. | 21 | 67 | 5,240 |
| 4 | Potts Drilling Inc. | 18 | 25 | 3,839 |
| 5 | A-1 Drilling | 8 | 9 | 387 |
| 6 | Red Tiger Drilling | 7 | 28 | 3,139 |
| 7 | American Drilling & Supply | 6 | 22 | 3,867 |
| 8 | Van Dyken Drilling Inc. | 5 | 42 | 5,564 |
| 9 | Okeefe Drilling Co. | 5 | 6 | 8,849 |
| 10 | Outlaw Drilling & Pump, LLC | 5 | 5 | 45 |
| 11 | Bertram Drilling Inc. | 4 | 4 | 748 |
| 12 | Environmental West Exploration | 4 | 4 | 329 |
| 13 | Lindsay Drilling Co. Inc. | 3 | 3 | 6,738 |
| 14 | Old Town Drilling | 3 | 3 | 163 |
| 15 | Mbmg | 2 | 2 | 30 |
| 16 | Hayes Drilling | 1 | 28 | 1,920 |
| 17 | Billmayer Drilling | 1 | 1 | 3,225 |
| 18 | Excel Pump And Well Inc. | 1 | 1 | 99 |
| 19 | B & H | — | 129 | 1,341 |
| 20 | Beven Drilling | — | 104 | 332 |
| 21 | I & I Drilling | — | 96 | 118 |
| 22 | Hillman Drilling | — | 95 | 2,321 |
| 23 | B & H Drilling | — | 80 | 613 |
| 24 | A-1 Drilling/Billings Drilling | — | 25 | 804 |
| 25 | Dept OF Transportation | — | 18 | 527 |
| 26 | SK Geotechnical Co. | — | 14 | 434 |
| 27 | Pro Pump & Equipment Inc. | — | 14 | 1,338 |
| 28 | Patterson | — | 13 | 41 |
| 29 | MT Dept OF Transportation | — | 12 | 5,869 |
| 30 | Diamond M Drilling Inc. | — | 9 | 782 |
| 31 | Rock Creek Drilling Inc. | — | 8 | 977 |
| 32 | Pickett | — | 8 | 347 |
| 33 | Sommer | — | 8 | 131 |
| 34 | Boart Longyear Company | — | 7 | 96 |
| 35 | Northern Pacific Railway | — | 7 | 63 |
| 36 | Vidic Drilling Inc. | — | 6 | 1,062 |
| 37 | Kevin Haggerty Drilling Inc. | — | 6 | 1,027 |
| 38 | Anderson Drilling | — | 6 | 1,057 |
| 39 | AK Drilling Inc. | — | 5 | 1,288 |
| 40 | Johnson | — | 5 | 658 |
| 41 | A & G Drilling Inc. | — | 5 | 173 |
| 42 | Joe Pirrie Water Wells | — | 5 | 146 |
| 43 | Stillwater Drilling | — | 5 | 26 |
| 44 | Central Drilling Inc. | — | 4 | 1,101 |
| 45 | Bridger Drilling Inc. | — | 4 | 2,382 |
| 46 | Jones | — | 4 | 642 |
| 47 | H & H Drilling | — | 2 | 1,083 |
| 48 | Billings Drilling | — | 2 | 895 |
| 49 | Digger Drilling | — | 2 | 725 |
| 50 | Hunt Drilling | — | 2 | 627 |
| 51 | Maxim Technologies | — | 2 | 491 |
| 52 | Debuff Drilling | — | 2 | 443 |
| 53 | Murrays Well Service | — | 2 | 376 |
| 54 | Esd Inc. | — | 2 | 284 |
| 55 | Mahurin Drilling | — | 2 | 101 |
| 56 | Stillwater | — | 2 | 72 |
| 57 | MT Dept OF Highways | — | 2 | 55 |
| 58 | A-10 Drilling | — | 1 | 2,343 |
| 59 | Douglas Drilling | — | 1 | 1,060 |
| 60 | Petrie Pump & Drilling | — | 1 | 621 |
| 61 | Hydrometrics Inc. | — | 1 | 194 |
| 62 | Haggerty Drilling | — | 1 | 3,618 |
| 63 | Hickel & Tooke Drilling Co. | — | 1 | 569 |
| 64 | Billings | — | 1 | 367 |
| 65 | Kal Well Service | — | 1 | 134 |
| 66 | Bailey And Okeefe Drilling Co. | — | 1 | 82 |
| 67 | Hunt - Pearce Drilling | — | 1 | 70 |
| 68 | L & D | — | 1 | 63 |
| 69 | Haugan | — | 1 | 59 |
| 70 | Ruen Core Drilling Inc. | — | 1 | 55 |
| 71 | Bush | — | 1 | 44 |
Ranked by wells drilled in Sweet Grass 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 Sweet Grass County?
Birchell Drilling has drilled the most Sweet Grass County wells in the recent record — 171 since 2016, 847 in the county all-time.
How many well drilling companies work in Sweet Grass County?
71 companies in the GWIC record have drilled wells in Sweet Grass County; 32 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 Sweet Grass County?
The median drilled depth in Sweet Grass County is 85 ft, based on 2,321 recorded wells. Depths, water levels, and yields are on the Sweet Grass County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on
the Sweet Grass County wells page.
Drill in Sweet Grass County?
If your company is on this list, your profile is free to claim — confirm your details and add your
contact information so Sweet Grass County property owners reach you directly.
Claim your profile Free to claim · built from GWIC public well-log records.