⟁ Illinois Well Data field records · 2026 survey

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Best well drillers in Dupage County, Illinois

Not a pay-to-play list: these are the 156 drilling companies with wells on record in Dupage County, ranked by wells actually drilled here — 9,675 logged wells in the Illinois State Geological Survey water well records (records as of 2026-10-12). Every number links back to the public record.

156companies on record
16active since 2022
9,675wells in county record
#CompanyIn Dupage Co. since 2016All-time in countyStatewide
1 Knierim, Ken/K & K Well Drlg. 49 85 891
2 Matt Liberg 43 58 182
3 Fischer, James Monroe 10 264 532
4 Jason Jablonski 10 11 89
5 Will County Well & Pump 9 27 832
6 Jablonski, John A. 6 21 248
7 Stinnett, David 5 20 1,830
8 Neely, Mark S. 4 23 1,105
9 Snelten, A & C 2 4 82
10 Liberg, Patrick A. 1 501 780
11 Weirich, William Theodore 1 47 577
12 Municipal Well & Pump, Inc. 1 2 56
13 K & K Well Drilling — 1,340 3,047
14 Knierim, Phil — 1,008 5,399
15 Dupage Pump — 653 1,095
16 Fykes, Charles N. — 507 6,006
17 Senffner, Alan James — 303 1,253
18 Wellendorf, Rodney — 294 2,319
19 Sisson, Edward — 270 502
20 Meadow Equipment — 224 787
21 Liberg, Steven Scott — 216 378
22 Kerry, Charles M. — 208 538
23 Sission, Edward H. — 206 292
24 Liberg, Thomas P. — 202 357
25 Dietzman, Gerald E. — 189 1,227
26 Liberg, John E. — 176 346
27 Diebold Chester C — 147 149
28 DU Page Pump Inc. — 144 161
29 Knierim, Phillip E. — 130 301
30 Layne-Western Co. — 128 1,635
31 Liberg, Paul Evan — 113 205
32 Miller, J. P. Art. Well — 88 299
33 Fischer James — 83 90
34 Arnt & Son - Dupage — 81 82
35 Kuehn, Kurt — 71 144
36 Ward, Delbert G. — 69 206
37 Fykes Charles & Pump — 69 127
38 Zanker, Joseph I. — 67 67
39 Vineyard, Gene F. — 66 67
40 Testing Service Corp. — 51 59
41 Kerry, Charles — 50 127
42 Moore, John V. — 50 108
43 Rice Well Drilling — 50 50
44 Laczynski, AL — 49 50
45 Lockport Well & Pump — 48 354
46 Shaver, James R. Sr. — 48 78
47 Liberg Patrick S — 46 50
48 Senffner, Keith — 44 210
49 Wehling Well Works, Inc. — 41 797
50 Efflandt, Robert — 40 1,683
51 Rob, Ronald — 37 61
52 Randa WM J — 37 37
53 Perrine William — 37 37
54 Fordonski, Keith — 36 1,694
55 Stanley, Charles — 35 213
56 Charles M. Kerry — 35 41
57 Austin, Harry — 34 34
58 Neely & Son — 34 34
59 Matherly, Hubert — 33 1,534
60 Walters, Larry — 33 1,525
61 Knierum, Paul — 32 298
62 Bilsky, J. W. — 30 30
63 Brown, Darwin — 26 2,166
64 Midwest Well Drlg — 26 26
65 Gorlo, E. R. — 25 25
66 Wehling, Richard H. — 24 319
67 Miller, J.p. Artesian Well Co. — 23 317
68 Yeoman, Omer — 23 86
69 Liberg, Steve Jr. — 21 706
70 Gaffke, George E. — 19 4,869
71 Foyle, Richard S. — 19 659
72 Carson, James R. — 19 101
73 Pitz, John W. — 18 318
74 John E. Liberg — 17 34
75 Breitzke, Wm. — 15 249
76 Geiger, S. B. — 15 114
77 Wehling, R. H. — 15 78
78 Schlesser F & Sons — 15 25
79 NO Company — 13 564
80 Neely Cliff L — 13 28
81 Knierim, James — 12 900
82 Wehling, Wendell E. — 12 590
83 Sharpe, Franklin N. — 11 2,247
84 Rob, Ronald Gene — 10 2,082
85 Knierin Paul — 10 63
86 Milaeger Well Drilling Co. — 10 63
87 Neely&schimelpfening — 10 38
88 Hutchings, Clyde A. — 9 321
89 Pitz, N. L. — 9 187
90 Miller, J.p. Co. — 9 146
91 Stinnett, James R. — 8 314
92 Buffington, G. — 8 147
93 Snelten, Stephen A. — 7 700
94 Neely, Harry C. — 7 534
95 Neeley, Harry C. — 7 456
96 Lode, Lawrence James — 7 180
97 Murdoch, James J. — 6 33
98 Stanley, Charles Joseph — 6 33
99 Neupert, Thomas A. — 6 32
100 Rob, Peter — 5 1,154
101 Layne & Western Co. — 5 114
102 Snelton, Peter — 5 68
103 Brooks, Rollin W. — 5 37
104 Roe, Ronald — 5 33
105 Knierim Company, Inc. — 4 888
106 Knierim, Max — 4 115
107 Ken Knierim/K & K Well Drlg. — 4 112
108 Cole, Raymond Joseph Jr. — 4 93
109 Jurs Martin&sons Inc. — 4 89
110 John A. Jablonski — 3 306
111 Geltz, N. H. — 3 258
112 Wehling, Richard W. — 3 132
113 Pilgard, Peter & Son — 3 103
114 Hoover Water Well Servic — 3 98
115 Thorne, W. L. Co. — 3 49
116 Steve Liberg, Jr. — 3 46
117 Gray Well Drlg — 3 35
118 Knierim James Muelle — 3 32
119 Area Well & Pump — 2 792
120 Hoover, Lonny R. — 2 1,362
121 Pilgard, Peter — 2 673
122 Tri County Well & Pump — 2 298
123 Hart - Will-Dupage Drilling — 2 128
124 Snelton Bros. — 2 97
125 Suburban Well — 2 72
126 Burgess, Wayne Jr. — 2 67
127 Layne North-Central — 2 44
128 Mcellhiney Wm. Sr. — 2 26
129 Keller, Larry — 1 939
130 Kelly, Timothy — 1 78
131 Strange, Michael — 1 1,024
132 Layne Christensen Co. — 1 58
133 Livingston, Lowell — 1 2,135
134 Courson, Roger — 1 1,463
135 Snelten, Greg — 1 1,307
136 Boetsch, William M. — 1 967
137 Pilgard, John P. — 1 607
138 Bisping, Calvin — 1 465
139 Boysen, Henry Co. — 1 350
140 Elfmann, Larry T. — 1 198
141 Rieke Well Drilling Co. — 1 181
142 Winslow, Edwin F. — 1 163
143 Baker, Paul A. — 1 137
144 Alco Oil & Gas Corp. — 1 123
145 Pediger, Dan — 1 112
146 Snelten, Arthur Charles — 1 81
147 Layne-Western Drlg — 1 73
148 Mallow — 1 71
149 Pohl, Harold N. — 1 64
150 Szymanski, Ted J. — 1 45
151 Rosenquist, K. W. — 1 43
152 Millis, P. E. — 1 43
153 Donald N. Cleary — 1 40
154 IL State Water Survey — 1 33
155 Schlesser & Sons — 1 28
156 K & K Oil, Inc. — 1 25

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

Knierim, Ken/K & K Well Drlg. has drilled the most Dupage County wells in the recent record — 49 since 2016, 85 in the county all-time.

How many well drilling companies work in Dupage County?

156 companies in the ISGS record have drilled wells in Dupage County; 16 of them have drilled somewhere in Illinois since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Dupage County?

The median drilled depth in Dupage County is 161 ft, based on 10,728 recorded wells. Depths, water levels, and yields are on the Dupage County wells page.

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

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