Best well drillers in Lake County, Montana

Not a pay-to-play list: these are the 139 drilling companies with wells on record in Lake County, ranked by wells actually drilled here — 7,057 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.

139companies on record

44active since 2022

7,057wells in county record

#	Company	In Lake Co. since 2016	All-time in county	Statewide
1	Ace Drilling	373	705	939
2	OH Well Drilling And Pump	293	323	878
3	Allwest Drilling Inc.	194	843	1,694
4	Coldwater Drilling And Pumps	80	80	575
5	Billmayer Drilling	63	346	3,225
6	Jeromes Drilling Co.	59	318	6,463
7	RM Drilling And Well Services	35	35	369
8	West Central Environmental Consultants	33	33	291
9	Okeefe Drilling Co.	32	242	8,849
10	Camp Well Drilling And Pump Service	29	34	573
11	Glazier Drilling	23	70	1,736
12	Cyclone Drilling Inc.	15	154	650
13	Camp Well Drilling & Pump Supply	14	16	855
14	Western Montana Drilling Co.	14	14	721
15	Haz Tech Drilling Inc.	13	85	2,135
16	Chambers Drilling Company	12	87	2,237
17	AK Drilling Inc.	11	47	1,288
18	MT Dept OF Transportation	10	76	5,869
19	Olympus Technical Services	7	7	175
20	Evensix Inc. Dba Allwest Drilling	7	7	32
21	Heimark Drilling	7	7	30
22	Western Drilling Co.	3	3	229
23	Davis Brothers Drilling	2	2	969
24	Aqwa Drilling LLC	2	2	1,897
25	Certified Well And Pump	1	2	498
26	Beyer Drilling	1	2	44
27	Western Water Wells	1	1	1,146
28	North Star Drilling Inc.	1	1	222
29	Castlio Drilling	—	519	645
30	Liberty Drilling & Pump Co.	—	510	2,646
31	Camp Well Drilling	—	431	3,803
32	Western Water Works Inc.	—	239	1,205
33	Main Harbor Pumps & Well Drilling	—	238	352
34	O.k.	—	162	324
35	Hudson	—	123	342
36	Johnson	—	105	658
37	Anderson Drilling	—	101	1,057
38	Sudan Drilling	—	84	1,984
39	Mission	—	81	106
40	Farrell	—	58	166
41	Stinger Well Drilling	—	55	774
42	Jerome And Okeefe Drilling Co.	—	47	1,032
43	Beebe	—	39	68
44	Preston	—	38	243
45	Mcclarty Drilling	—	34	777
46	Sharp Drilling Inc.	—	33	772
47	Lochner	—	31	76
48	Osborne	—	26	59
49	Lake County	—	26	26
50	Martin Well Drilling	—	24	1,451
51	Ckc	—	22	482
52	Wilhelm Hudson	—	22	73
53	Porter Drilling	—	21	126
54	Erickson Drilling & Pump Co.	—	20	803
55	A & M	—	20	30
56	Brazill Drilling	—	17	674
57	Davis Drilling	—	17	385
58	Kane Well Drilling & Pump Service	—	15	1,551
59	Blackfoot Well Drilling & Pump Service Inc.	—	15	450
60	Wes	—	14	172
61	Usgs	—	14	102
62	SK Geotechnical Co.	—	12	434
63	Williams Well Drilling	—	12	785
64	Krass Drilling & Pump Service	—	12	263
65	Wilhelm	—	11	119
66	Y-Environmental	—	11	94
67	Patterson	—	10	41
68	Rainbow Well Drilling	—	9	204
69	Briggs Drilling	—	9	381
70	Olsen & Justin	—	9	271
71	Pickett	—	8	347
72	Lewis	—	8	39
73	Hunter	—	8	26
74	Eslinger Drilling & Pump Service	—	7	4,560
75	Eagle Drilling And Pump Service	—	7	830
76	Western	—	7	202
77	M.t.	—	7	116
78	Ravalli Drilling Inc.	—	6	4,911
79	Environmental West Exploration	—	6	329
80	Well Done Drilling & Pump Co.	—	6	152
81	Damm Drilling	—	6	107
82	Lowe-Bush Drilling	—	6	52
83	Boland Drilling	—	5	1,807
84	Callison Well Drilling	—	5	693
85	Weber	—	5	954
86	Montana	—	5	176
87	Bearcat Drilling	—	5	96
88	Atlatl Inc.	—	5	86
89	Bridger Drilling Inc.	—	4	2,382
90	Hansen Environmental Drilling	—	4	1,195
91	Hansen Drilling	—	4	42
92	Dept OF Transportation	—	4	527
93	B And B Drilling	—	4	435
94	Water Well Services Inc.	—	4	323
95	Johnson Water Well Service	—	4	275
96	Kornec	—	4	135
97	Sommer	—	4	131
98	Rimrock	—	4	33
99	Advanced Well Drilling Inc.	—	3	811
100	Smith Drilling	—	3	120
101	Magstadt	—	3	80
102	Starz	—	3	71
103	MT Dept OF Highways	—	3	55
104	Hudson Brothers	—	3	51
105	Big Rock	—	3	38
106	Bray	—	3	30
107	Valley Drilling Co.	—	2	1,108
108	Higgins Drillng Company	—	2	538
109	Maxim Technologies	—	2	491
110	Brown	—	2	247
111	Schmidt	—	2	114
112	Barrus Drilling And Pump Co.	—	2	109
113	Hendrickson	—	2	82
114	Mcclarty Well Drilling	—	2	59
115	Ulrich	—	2	35
116	Amec Geomatrix Inc.	—	2	31
117	Aquasource Drilling LLC	—	1	1,071
118	Universal Drilling	—	1	1,147
119	Aaaa Water Well Drilling Inc.	—	1	769
120	Stinger Drilling	—	1	127
121	MT Bureau OF Mines & Geology	—	1	620
122	Preston Drilling	—	1	1,000
123	Poverty Drilling	—	1	992
124	Joe Liss Water Wells, Inc.	—	1	501
125	Beck Drilling & Pump	—	1	364
126	Chen-Northern, Inc.	—	1	205
127	Aqua Source	—	1	117
128	Carlson	—	1	115
129	Grizzly Drilling	—	1	81
130	Rabco Services Inc.	—	1	80
131	Deyoung	—	1	67
132	Northern Pacific Railway	—	1	63
133	Porter Well Drilling	—	1	47
134	Luce	—	1	45
135	Bush	—	1	44
136	Ckc Drilling	—	1	42
137	Lochner Drilling	—	1	36
138	Department OF Transportation	—	1	35
139	Shultz	—	1	29

Ranked by wells drilled in Lake 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 Lake County?

Ace Drilling has drilled the most Lake County wells in the recent record — 373 since 2016, 705 in the county all-time.

How many well drilling companies work in Lake County?

139 companies in the GWIC record have drilled wells in Lake County; 44 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 Lake County?

The median drilled depth in Lake County is 180 ft, based on 8,084 recorded wells. Depths, water levels, and yields are on the Lake County wells page.

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

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