⟁ North Dakota Well Data field records · 2026 survey

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Best well drillers in Mountrail County, North Dakota

Not a pay-to-play list: these are the 48 drilling companies with wells on record in Mountrail County, ranked by wells actually drilled here — 1,501 logged wells in the North Dakota Department of Water Resources drillers log file (records as of 2026-09-28). Every number links back to the public record.

48companies on record
21active since 2022
1,501wells in county record
#CompanyIn Mountrail Co. since 2016All-time in countyStatewide
1 Thompson Drilling 30 35 1,674
2 Stumvoll Drilling 25 45 1,028
3 Dennis Water Well Drilling 15 644 1,283
4 S & S Drilling 15 20 305
5 Agri Industries 11 65 786
6 Iba Drilling Company, Inc. 10 10 50
7 Mariner's Well Drilling 6 55 439
8 Manikowski Well Drilling 4 8 670
9 Mariner Water Well Service 4 4 72
10 Thein Well Co. 3 6 31
11 Erck Well Drilling 2 10 1,147
12 Illand Mariner Water Well Service 2 3 28
13 Brase Drilling LLC 2 2 495
14 Lien Well Service 1 36 144
15 Kamoni Water Wells 1 7 1,682
16 Gregory Water & Energy Inc. 1 1 625
17 Eews, Inc. 1 1 25
18 Depth Well Drilling 1 1 80
19 Earth Energy & Water 1 1 58
20 Flaherty Drilling — 162 207
21 Crowder Well Drilling — 117 131
22 Tandeski Water Well Drilling — 55 242
23 Crowder-Dennis Well Drilling — 35 43
24 Mann Drilling — 31 638
25 Lakeview Drilling, Inc. — 23 67
26 Circle M Drilling — 22 274
27 Ltp Enterprises — 21 1,556
28 Mariner Drilling — 14 89
29 Stemen Drilling — 9 72
30 Sax Well Drilling — 7 105
31 Dan's Drilling — 7 34
32 Gregory Drilling — 5 975
33 Don & Keith Erck — 4 670
34 Diamond M Drilling — 4 50
35 C. A. Simpson & Son — 3 585
36 Finkbeiner Drilling — 3 363
37 Russell Drilling — 3 345
38 Peterson Well Drilling — 3 71
39 Braun Intertec — 3 33
40 Mohl Drilling — 2 483
41 L.t.p. Enterprises, Inc. — 2 76
42 Farmers Supply Co. — 2 480
43 Boyce Drilling — 2 354
44 Church Well Boring — 2 148
45 Stone Drilling — 2 72
46 Kieson Drilling — 2 63
47 Milo Burwick & Sons — 1 261
48 Mann-Stumvoll Drilling — 1 77

Ranked by wells drilled in Mountrail County since 2016 (then all-time), from the full ND DWR 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 Mountrail County?

Thompson Drilling has drilled the most Mountrail County wells in the recent record — 30 since 2016, 35 in the county all-time.

How many well drilling companies work in Mountrail County?

48 companies in the ND DWR record have drilled wells in Mountrail County; 21 of them have drilled somewhere in North Dakota since 2022. Smaller operators below the record threshold may also serve the area.

Log counts, drilling dates, and the full driller ranking for this county live on the Mountrail County wells page.

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Free to claim · built from ND DWR public well-log records.