⟁ Montana Well Data field records · 2026 survey

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Best well drillers in Mineral County, Montana

Not a pay-to-play list: these are the 58 drilling companies with wells on record in Mineral County, ranked by wells actually drilled here — 1,782 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.

58companies on record
28active since 2022
1,782wells in county record
#CompanyIn Mineral Co. since 2016All-time in countyStatewide
1 Callison Well Drilling 87 305 698
2 Camp Well Drilling And Pump Service 84 89 573
3 Jeromes Drilling Co. 57 137 6,465
4 Western Montana Drilling Co. 38 38 740
5 Camp Well Drilling & Pump Supply 29 39 868
6 Steve Berg Well Drilling 17 25 29
7 Ace Drilling 11 18 947
8 North Star Drilling Inc. 8 8 232
9 Coldwater Drilling And Pumps 4 4 597
10 Okeefe Drilling Co. 3 9 8,889
11 Eagle Drilling And Pump Service 2 3 843
12 Aqwa Drilling LLC 2 2 1,897
13 AK Drilling Inc. 1 3 1,310
14 Lewis Drilling 1 3 104
15 Heimark Drilling 1 1 38
16 Mbmg 1 1 30
17 Kane Well Drilling & Pump Service — 584 1,551
18 Dept OF Transportation — 148 527
19 Camp Well Drilling — 88 3,803
20 MT Dept OF Transportation — 75 5,869
21 Spangler — 70 73
22 Callison Drilling Inc. — 27 62
23 Krass Drilling & Pump Service — 16 263
24 Environmental West Exploration — 10 329
25 Jerome And Okeefe Drilling Co. — 8 1,032
26 Geotex — 7 31
27 Spanglers Well Drilling — 6 29
28 Maxim Technologies — 5 491
29 Blackfoot Well Drilling & Pump Service Inc. — 4 450
30 Higgins Drilling Company — 3 956
31 Ravalli Drilling Inc. — 3 4,911
32 Stinger Drilling — 3 127
33 Hydrometrics Inc. — 3 194
34 Ckc — 3 482
35 Sommer — 3 131
36 Mission — 3 106
37 Boland Drilling — 2 1,815
38 Liberty Drilling & Pump Co. — 2 2,646
39 Hillman Drilling — 2 2,321
40 Williams Well Drilling — 2 785
41 Carlson — 2 115
42 MT Dept OF Highways — 2 55
43 Eslinger Drilling & Pump Service — 1 4,586
44 Billmayer Drilling — 1 3,232
45 Allwest Drilling Inc. — 1 1,694
46 Bridger Drilling Inc. — 1 2,385
47 Glazier Drilling — 1 1,744
48 Anderson Drilling — 1 1,057
49 Madison Drilling & Pump Supply — 1 681
50 Castlio Drilling — 1 645
51 Thatcher Drilling Co. — 1 362
52 Western — 1 202
53 Smith Drilling — 1 120
54 Taylor — 1 88
55 Northern Pacific Railway — 1 63
56 Nelson — 1 53
57 Ckc Drilling — 1 42
58 Olympus — 1 34

Ranked by wells drilled in Mineral 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 Mineral County?

Callison Well Drilling has drilled the most Mineral County wells in the recent record — 87 since 2016, 305 in the county all-time.

How many well drilling companies work in Mineral County?

58 companies in the GWIC record have drilled wells in Mineral County; 28 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 Mineral County?

The median drilled depth in Mineral County is 122 ft, based on 1,692 recorded wells. Depths, water levels, and yields are on the Mineral County wells page.

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

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