Best well drillers in Judith Basin County, Montana

Not a pay-to-play list: these are the 59 drilling companies with wells on record in Judith Basin County, ranked by wells actually drilled here — 1,120 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.

59companies on record

30active since 2022

1,120wells in county record

#	Company	In Judith Basin Co. since 2016	All-time in county	Statewide
1	Central Drilling Inc.	88	257	1,101
2	Aquasource Drilling LLC	22	24	1,071
3	Singley Drilling	10	85	835
4	Haz Tech Drilling Inc.	10	10	2,135
5	Montana Salinity Control Association	7	13	2,583
6	Yellow Jacket Drilling Services LLC	7	7	72
7	Olympus Technical Services	6	6	175
8	Aaaa Water Well Drilling Inc.	5	8	769
9	406 Water Wells, LLC	5	5	182
10	Boland Drilling	4	23	1,807
11	Hole World Consulting LLC	4	4	43
12	MT Dept OF Transportation	3	120	5,869
13	Potts Drilling Inc.	1	4	3,839
14	Pat Byrne Drilling Inc.	1	4	440
15	A-10 Drilling	1	1	2,343
16	Diamond M Drilling Inc.	1	1	782
17	Thatcher Drilling Co.	—	200	362
18	Murrays Well Service	—	84	376
19	Debuff Drilling	—	71	443
20	Jennings Drilling Co.	—	38	248
21	Poverty Drilling	—	23	992
22	Sure Water Drilling	—	22	125
23	Aquasource Inc. LLC	—	16	497
24	Thomas, Dean, And Hoskins, Inc.	—	11	74
25	Joe Pirrie Water Wells	—	9	146
26	Okeefe Drilling Co.	—	6	8,849
27	Byrne	—	5	1,232
28	Dept OF Transportation	—	5	527
29	Maxim Technologies	—	5	491
30	Jbr Environmental Consultants	—	5	72
31	Red Tiger Drilling	—	4	3,139
32	Corveau Drilling	—	4	141
33	Aqua Source	—	3	117
34	Four Star Drilling	—	3	87
35	Hunter	—	3	26
36	AK Drilling Inc.	—	2	1,288
37	Hansen Environmental Drilling	—	2	1,195
38	Mbmg	—	2	30
39	Pickett	—	2	347
40	Rafferty	—	2	193
41	Atlatl Inc.	—	2	86
42	Wellman & Munson Drilling	—	2	36
43	Askin Drilling	—	1	5,092
44	Lindsay Drilling Co. Inc.	—	1	6,738
45	H & H Drilling	—	1	1,083
46	Birchell Drilling	—	1	1,046
47	SK Geotechnical Co.	—	1	434
48	S & S Drilling	—	1	63
49	Martin Well Drilling	—	1	1,451
50	Gordon Drilling Inc.	—	1	1,128
51	MT-Poverty	—	1	400
52	Brown	—	1	247
53	Aqua	—	1	189
54	Franklin	—	1	162
55	Eastern Montana Drilling	—	1	138
56	50/50 Drilling	—	1	103
57	Usgs	—	1	102
58	Pierce	—	1	64
59	MT Dept OF Highways	—	1	55

Ranked by wells drilled in Judith Basin 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 Judith Basin County?

Central Drilling Inc. has drilled the most Judith Basin County wells in the recent record — 88 since 2016, 257 in the county all-time.

How many well drilling companies work in Judith Basin County?

59 companies in the GWIC record have drilled wells in Judith Basin County; 30 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 Judith Basin County?

The median drilled depth in Judith Basin County is 100 ft, based on 1,583 recorded wells. Depths, water levels, and yields are on the Judith Basin County wells page.

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

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