Best well drillers in Lake County, Montana

Not a pay-to-play list: these are the 140 drilling companies with wells on record in Lake County, ranked by wells actually drilled here — 7,090 logged wells in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC) (records as of 2026-10-26). Every number links back to the public record.

140companies on record

45active since 2022

7,090wells in county record

#	Company	In Lake Co. since 2016	All-time in county	Statewide
1	Ace Drilling	381	713	947
2	OH Well Drilling And Pump	301	331	900
3	Allwest Drilling Inc.	194	843	1,694
4	Coldwater Drilling And Pumps	81	81	602
5	Billmayer Drilling	64	347	3,233
6	Jeromes Drilling Co.	59	318	6,465
7	West Central Environmental Consultants	36	36	311
8	RM Drilling And Well Services	35	35	389
9	Okeefe Drilling Co.	33	243	8,901
10	Camp Well Drilling And Pump Service	29	34	581
11	Glazier Drilling	24	71	1,745
12	Cyclone Drilling Inc.	15	154	651
13	Camp Well Drilling & Pump Supply	14	16	871
14	Western Montana Drilling Co.	14	14	744
15	Haz Tech Drilling Inc.	13	85	2,139
16	Chambers Drilling Company	12	87	2,248
17	AK Drilling Inc.	11	47	1,314
18	MT Dept OF Transportation	10	76	5,869
19	Evensix Inc. Dba Allwest Drilling	8	8	36
20	Olympus Technical Services	7	7	178
21	Heimark Drilling	7	7	46
22	Ponderosa Drilling LLC	7	7	25
23	Davis Brothers Drilling	3	3	1,016
24	Western Drilling Co.	3	3	229
25	Western Water Wells	2	2	1,188
26	Aqwa Drilling LLC	2	2	1,897
27	Certified Well And Pump	1	2	498
28	Beyer Drilling	1	2	44
29	North Star Drilling Inc.	1	1	236
30	Castlio Drilling	—	519	645
31	Liberty Drilling & Pump Co.	—	510	2,646
32	Camp Well Drilling	—	431	3,803
33	Western Water Works Inc.	—	239	1,205
34	Main Harbor Pumps & Well Drilling	—	238	352
35	O.k.	—	162	324
36	Hudson	—	123	342
37	Johnson	—	105	658
38	Anderson Drilling	—	101	1,057
39	Sudan Drilling	—	84	1,984
40	Mission	—	81	106
41	Farrell	—	58	166
42	Stinger Well Drilling	—	55	774
43	Jerome And Okeefe Drilling Co.	—	47	1,032
44	Beebe	—	39	68
45	Preston	—	38	243
46	Mcclarty Drilling	—	34	777
47	Sharp Drilling Inc.	—	33	772
48	Lochner	—	31	76
49	Osborne	—	26	59
50	Lake County	—	26	26
51	Martin Well Drilling	—	24	1,451
52	Ckc	—	22	482
53	Wilhelm Hudson	—	22	73
54	Porter Drilling	—	21	126
55	Erickson Drilling & Pump Co.	—	20	803
56	A & M	—	20	30
57	Brazill Drilling	—	17	674
58	Davis Drilling	—	17	385
59	Kane Well Drilling & Pump Service	—	15	1,551
60	Blackfoot Well Drilling & Pump Service Inc.	—	15	450
61	Wes	—	14	172
62	Usgs	—	14	102
63	SK Geotechnical Co.	—	12	439
64	Williams Well Drilling	—	12	785
65	Krass Drilling & Pump Service	—	12	263
66	Wilhelm	—	11	119
67	Y-Environmental	—	11	94
68	Patterson	—	10	41
69	Rainbow Well Drilling	—	9	204
70	Briggs Drilling	—	9	381
71	Olsen & Justin	—	9	271
72	Pickett	—	8	347
73	Lewis	—	8	39
74	Hunter	—	8	26
75	Eslinger Drilling & Pump Service	—	7	4,594
76	Eagle Drilling And Pump Service	—	7	848
77	Western	—	7	202
78	M.t.	—	7	116
79	Ravalli Drilling Inc.	—	6	4,913
80	Environmental West Exploration	—	6	329
81	Well Done Drilling & Pump Co.	—	6	152
82	Damm Drilling	—	6	107
83	Lowe-Bush Drilling	—	6	52
84	Boland Drilling	—	5	1,817
85	Callison Well Drilling	—	5	699
86	Weber	—	5	954
87	Montana	—	5	176
88	Bearcat Drilling	—	5	96
89	Atlatl Inc.	—	5	86
90	Bridger Drilling Inc.	—	4	2,385
91	Hansen Environmental Drilling	—	4	1,197
92	Hansen Drilling	—	4	42
93	Dept OF Transportation	—	4	527
94	B And B Drilling	—	4	435
95	Water Well Services Inc.	—	4	323
96	Johnson Water Well Service	—	4	275
97	Kornec	—	4	135
98	Sommer	—	4	131
99	Rimrock	—	4	33
100	Advanced Well Drilling Inc.	—	3	811
101	Smith Drilling	—	3	120
102	Magstadt	—	3	80
103	Starz	—	3	71
104	MT Dept OF Highways	—	3	55
105	Hudson Brothers	—	3	51
106	Big Rock	—	3	38
107	Bray	—	3	30
108	Valley Drilling Co.	—	2	1,108
109	Higgins Drillng Company	—	2	538
110	Maxim Technologies	—	2	491
111	Brown	—	2	247
112	Schmidt	—	2	114
113	Barrus Drilling And Pump Co.	—	2	109
114	Hendrickson	—	2	82
115	Mcclarty Well Drilling	—	2	59
116	Ulrich	—	2	35
117	Amec Geomatrix Inc.	—	2	31
118	Aquasource Drilling LLC	—	1	1,111
119	Universal Drilling	—	1	1,147
120	Aaaa Water Well Drilling Inc.	—	1	777
121	Stinger Drilling	—	1	127
122	MT Bureau OF Mines & Geology	—	1	620
123	Preston Drilling	—	1	1,000
124	Poverty Drilling	—	1	992
125	Joe Liss Water Wells, Inc.	—	1	501
126	Beck Drilling & Pump	—	1	364
127	Chen-Northern, Inc.	—	1	205
128	Aqua Source	—	1	117
129	Carlson	—	1	115
130	Grizzly Drilling	—	1	81
131	Rabco Services Inc.	—	1	80
132	Deyoung	—	1	67
133	Northern Pacific Railway	—	1	63
134	Porter Well Drilling	—	1	47
135	Luce	—	1	45
136	Bush	—	1	44
137	Ckc Drilling	—	1	42
138	Lochner Drilling	—	1	36
139	Department OF Transportation	—	1	35
140	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 — 381 since 2016, 713 in the county all-time.

How many well drilling companies work in Lake County?

140 companies in the GWIC record have drilled wells in Lake County; 45 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 8,114 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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