⟁ California Well Data field records · 2026 survey

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Best well drillers in Merced County, California

Not a pay-to-play list: these are the 179 drilling companies with wells on record in Merced County, ranked by wells actually drilled here — 13,179 logged wells in the California Department of Water Resources (DWR) Well Completion Reports database (records as of 2026-08-14). Every number links back to the public record.

179companies on record
75active since 2022
13,179wells in county record
#CompanyIn Merced Co. since 2016All-time in countyStatewide
1 Quality Well Drillers Inc. 478 3,303 3,524
2 Calwater Drilling Company Inc. 339 1,828 5,421
3 Living Water Well Drilling 332 343 441
4 Masellis Drilling Inc. 112 618 6,081
5 Dos Palos Well Drilling 80 598 788
6 Myers Brothers Well Drilling Inc. 58 483 2,865
7 Allison Sierra 39 58 127
8 Atwater Well Drilling 34 35 40
9 Prieto Anthony J Water Well Drilling Inc. 31 31 637
10 Cen Cal Drilling Inc. 27 30 31
11 Cascade Drilling L P 23 54 2,827
12 Henry George Farnsworth 22 43 43
13 Canepa And Sons Inc. 20 36 3,173
14 US Drilling 16 26 29
15 Maggiora Bros Drilling Inc. 15 51 4,674
16 Castle Well Drilling Inc. 12 12 294
17 Bradley & Sons Inc. 11 24 3,627
18 Arthur & Orum Well Drilling Inc. 9 173 3,219
19 Anthony J Prieto 9 30 2,330
20 Corrpro Companies Inc. 9 9 737
21 Gregg Drilling & Testing Inc. 8 36 4,828
22 Nor - Cal Pump & Well Drilling Inc. 8 15 248
23 M & M Well Drilling 8 13 74
24 Vics Well Drilling Inc. 8 8 337
25 Precision Well Drilling Inc. 8 8 189
26 Well Industries Inc. 7 10 558
27 Gregg Drilling LLC 7 7 558
28 Stonehouse Well Drilling 6 10 157
29 Castle Construction & Well Drilling Inc. 6 9 142
30 Big River Drilling LLC 6 6 715
31 Strickland Enterprises Inc. 6 6 2,026
32 American Construction And Supply Inc. 5 23 1,685
33 Rainbow Drilling 5 7 207
34 Scott Belknap Well Drilling Inc. 5 6 1,131
35 H & B Drilling And Sons LLC 5 5 414
36 Hennings Bros Drilling Co. Inc. 4 1,056 6,823
37 Yosemite Falls Inc. 4 9 706
38 J R Gross Wells & Pumps 3 27 27
39 Arsenal Well Drilling Inc. 3 3 234
40 Eaton Drilling Co. LLC 2 24 3,793
41 All Well Abandonment 2 18 607
42 Zim Industries Inc. Dba Bakersfield Well & Pump Co. 2 11 1,716
43 Johnson Drilling Co. 2 9 11,865
44 Farwest Corrosion Control Company 2 8 2,649
45 Beymer Well Service 2 6 2,921
46 Grabow Well Drilling Company 2 5 2,646
47 Joey's Well Drilling & Construction 2 4 46
48 Valley Well Drilling LP 2 2 410
49 Yellow Jacket Drilling Services LLC 2 2 291
50 C R Well Drilling 2 2 455
51 Water Resource Heritage Inc. 2 2 33
52 Roadrunner Drilling & Pump Company Inc. 2 2 205
53 Petro - Lud Inc. 2 2 26
54 Roscoe Moss Company 2 2 130
55 Everett A Loewenstein 1 324 357
56 Don's Drilling Company 1 27 28
57 Tanko Bros Inc. 1 3 2,617
58 99 Drilling LLC 1 1 265
59 Gregory Drilling Incorporated 1 1 143
60 Altamont Water Well And Pump 1 1 90
61 Hch Water Wells Inc. 1 1 43
62 Drew & Hefner Well Drilling 1 1 43
63 Simpson Drilling Company — 388 644
64 Signal Drilling Company — 314 8,301
65 Blake Hennings — 260 1,362
66 Aquarius Drilling And Pump Co. — 239 288
67 Myers Brothers Inc. — 200 796
68 Osterberg And Stewart — 200 636
69 Osterberg And Carroll — 193 561
70 Olson's Plbg & Heating — 133 308
71 Bill Belknap — 119 2,758
72 Thomas F Madsen — 117 128
73 Myers Reverse, Inc. — 113 2,389
74 Anderson Pump Company — 111 299
75 Martin Pump & Supply Inc. — 107 2,524
76 Weimer Stan Enterprises Inc. — 99 377
77 W D C Exploration & Wells — 90 2,421
78 Pearson Well Drilling — 82 176
79 Ritchey Bros — 73 183
80 C E Cates Well Drilling — 62 108
81 Hall Thomas A — 55 1,789
82 D P Well Drilling — 39 60
83 Hoffman J F Well Driller — 38 41
84 Chambers D P Drilling — 36 488
85 Cates Lloyd Drilling — 35 56
86 Bootjack Drilling Inc. — 34 649
87 Joe W Baker — 33 48
88 Gehrke-Bloomer — 30 160
89 Diamond Core Drilling Inc. — 26 480
90 Myers And Summers — 23 75
91 DP Drilling — 23 30
92 Mel Meyer — 20 101,127
93 Arthur's Well Drilling — 18 41
94 Beylik Drilling & Pump Service — 17 1,267
95 Howk Well & Equipment Co. — 17 48
96 Ace Drilling & Pump Co. — 17 27
97 Anderson Brothers Water Well Drilling & Domestic Pumps — 15 492
98 Layne Christensen Company — 14 2,362
99 Faria Welldrilling — 13 250
100 Davis & Davis Well Drilling — 11 315
101 B & W Drilling — 10 132
102 Moore Twining Associates Inc. — 10 46
103 Cascade Drilling Inc. - California — 9 3,167
104 Bloomer E — 9 102
105 Waterwell Plus — 9 27
106 Guardino Well Drilling Inc. — 8 1,736
107 A A A Drilling Service — 8 99
108 Modesto Well Drillers — 8 124
109 Hydro Resources - West Inc. — 8 97
110 Bsk Associates — 8 37
111 Spectrum Exploration Inc. — 7 307
112 Stroming Machinery — 6 2,391
113 Mariposa Well Drilling Company Inc. — 6 1,146
114 Aquarius Well Drilling Inc. — 6 121
115 National E W P Inc. — 5 431
116 Moosios Pump Co. Inc. — 5 127
117 Datum Exploration Inc. — 5 223
118 Winter Abajian Well Drilling — 5 203
119 Kenneth J Mcavoy — 5 161
120 Westside Drilling & Development Co. — 5 77
121 Bert Belknap — 5 50
122 Van Loon Jack — 5 49
123 Westervelt Well Drilling — 4 122
124 Panero Well Drilling Inc. — 4 921
125 Western Well Drilling Co. Ltd — 4 842
126 Testamerica Drilling Corp — 4 378
127 Cullum Systems Incorporated — 4 277
128 Joe Souza — 4 72
129 Jvl Water Well Drilling — 4 52
130 Abajian Seth Well Drilling — 4 41
131 Valley Pump & Motor Works Inc. — 3 181
132 Levnard T Larson — 3 681
133 Layne-Western Co. Inc. — 3 255
134 Golden Empire Drilling — 3 168
135 Tcb Well Drilling — 3 32
136 Wellco Drilling Inc. — 2 1,375
137 Kvilhaug Drilling & Pump Inc. — 2 327
138 Myers Well Drilling Inc. — 2 763
139 Purviance Drillers Inc. — 2 663
140 Krazan & Associates — 2 30
141 Cache Creek Drilling — 2 247
142 West Hazmat Drilling Corp — 2 1,702
143 Woodward Drilling Company Inc. — 2 1,542
144 H & B Drilling — 2 1,248
145 Rockwell Drilling Co. — 2 244
146 John A Brandt — 2 143
147 Dexter Machinery — 2 53
148 Groundwater Technology — 2 46
149 T C B Well Drilling Co. — 2 35
150 Russ Ervin-Well Drilling — 2 25
151 Consolidated Testing Laboratories Inc. — 1 1,405
152 Tanko Well Drilling — 1 3,311
153 Walt Bannon Drilling Inc. — 1 2,498
154 Bertram Drilling Inc. — 1 1,171
155 D & D Pumps — 1 46
156 Landino Drilling Co. — 1 151
157 Crum Sam Water Well Drilling Inc. — 1 591
158 Fronk's Mountain Drilling — 1 2,378
159 Diversified Exploration Co. Inc. — 1 751
160 Aqua Engineering — 1 641
161 Brown Elvin — 1 422
162 Clovis Pump & Water Well — 1 323
163 Bayland Drillers — 1 317
164 V & W Drilling — 1 310
165 Redfeairn R L Drilling — 1 195
166 Blain & Imbach Well Drilling — 1 168
167 K F Guernsey — 1 119
168 Xxx — 1 113
169 Jeffrey L Gross — 1 103
170 Rasmussen Well & Pump — 1 88
171 Harvey Gehrke — 1 63
172 Floyd's Well Drilling — 1 58
173 Roche Well And Pump Company — 1 54
174 Melton Drilling Co. — 1 46
175 All American Water Supply OF California Inc. — 1 40
176 Andy Noblin — 1 39
177 Dan's Water Well & Pump Service Inc. — 1 37
178 Arthur T Ball — 1 37
179 H A Moore Drlng — 1 32

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

Quality Well Drillers Inc. has drilled the most Merced County wells in the recent record — 478 since 2016, 3,303 in the county all-time.

How many well drilling companies work in Merced County?

179 companies in the DWR record have drilled wells in Merced County; 75 of them have drilled somewhere in California since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Merced County?

The median drilled depth in Merced County is 214 ft, based on 14,615 recorded wells. Depths, water levels, and yields are on the Merced County wells page.

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

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