Montana Well Data field records · 2026 survey

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Best well drillers in Granite County, Montana

Not a pay-to-play list: these are the 71 drilling companies with wells on record in Granite County, ranked by wells actually drilled here — 2,062 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
31active since 2022
2,062wells in county record
#CompanyIn Granite Co. since 2016All-time in countyStatewide
1 Okeefe Drilling Co. 239 702 8,849
2 Jeromes Drilling Co. 95 283 6,463
3 AK Drilling Inc. 76 148 1,288
4 Western Water Wells 21 21 1,146
5 Western Montana Drilling Co. 15 15 721
6 MT Dept OF Transportation 13 39 5,869
7 Aquasource Drilling LLC 8 8 1,071
8 Heimark Drilling 8 8 30
9 Parsons Drilling 7 94 417
10 Lindsay Drilling Co. Inc. 7 92 6,738
11 Blackfoot Well Drilling & Pump Service Inc. 6 22 450
12 Camp Well Drilling And Pump Service 6 7 573
13 Western Drilling Co. 5 5 229
14 Beck Drilling & Pump 4 20 364
15 West Central Environmental Consultants 3 3 291
16 Camp Well Drilling & Pump Supply 2 56 855
17 Eslinger Drilling & Pump Service 2 6 4,560
18 Aaaa Water Well Drilling Inc. 2 2 769
19 Montana Highway Dept. 2 2 370
20 Beyer Drilling 1 18 44
21 A-10 Drilling 1 11 2,343
22 H & L Drilling Inc. 1 4 7,604
23 Red Tiger Drilling 1 4 3,139
24 Coldwater Drilling And Pumps 1 1 575
25 Aqwa Drilling LLC 1 1 1,897
26 406 Water Wells, LLC 1 1 182
27 Vidic Drilling Inc. 1 1 1,062
28 Excel Pump And Well Inc. 1 1 99
29 Yellow Jacket Drilling Services LLC 1 1 72
30 Brazill Drilling 204 674
31 Camp Well Drilling 67 3,803
32 Jerome And Okeefe Drilling Co. 57 1,032
33 Dynamite Drilling 30 631
34 C.k.c. Drilling 11 47
35 Liberty Drilling & Pump Co. 10 2,646
36 Preston Drilling 10 1,000
37 Wroble 9 101
38 Williams Well Drilling 8 785
39 Riddock 8 51
40 Pickett 7 347
41 Rainbow Well Drilling 5 204
42 Ckc 5 482
43 Callison Well Drilling 4 693
44 Kane Well Drilling & Pump Service 4 1,551
45 Kornec 4 135
46 Barrus Drilling And Pump Co. 4 109
47 Boland Drilling 3 1,807
48 Morelock 3 130
49 Diamond Core Drilling Inc. 3 38
50 Ravalli Drilling Inc. 2 4,911
51 Hillman Drilling 2 2,321
52 Briggs Drilling 2 381
53 Sander Drilling Company 2 105
54 Mahurin Drilling 2 101
55 Riddock Casing And Drilling 2 91
56 Beebe 2 68
57 Corvallis 2 25
58 Eagle Drilling And Pump Service 1 830
59 Billmayer Drilling 1 3,225
60 Bridger Drilling Inc. 1 2,382
61 MT Poverty Water Well Drilling 1 408
62 Martin Well Drilling 1 1,451
63 Western Water Works Inc. 1 1,205
64 Johnson 1 658
65 Jennings Drilling Co. 1 248
66 Pickens 1 90
67 Northern Pacific Railway 1 63
68 Callison Drilling Inc. 1 62
69 Ruen Core Drilling Inc. 1 55
70 Ulrich 1 35
71 Willison Well Drilling 1 25

Ranked by wells drilled in Granite 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 Granite County?

Okeefe Drilling Co. has drilled the most Granite County wells in the recent record — 239 since 2016, 702 in the county all-time.

How many well drilling companies work in Granite County?

71 companies in the GWIC record have drilled wells in Granite County; 31 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 Granite County?

The median drilled depth in Granite County is 80 ft, based on 2,395 recorded wells. Depths, water levels, and yields are on the Granite County wells page.

Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Granite County wells page.

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