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Best well drillers in Clark County, Wisconsin
Not a pay-to-play list: these are the 76 drilling companies with wells
on record in Clark County, ranked by wells actually drilled here — 4,759 logged
wells in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records (records as of 2026-08-14). Every number links back to
the public record.
76companies on record
22active since 2022
4,759wells in county record
| # | Company | In Clark Co. since 2016 | All-time in county | Statewide |
|---|
| 1 | Brunner Well Drilling LLC | 248 | 249 | 1,060 |
| 2 | Midwest Well Drilling & Hydrofracking LLC | 156 | 156 | 1,452 |
| 3 | All American Well & Pump | 128 | 387 | 890 |
| 4 | Haupt Well Drlg Inc. | 93 | 231 | 1,723 |
| 5 | H2o Well Drilling & Pump Service | 91 | 101 | 1,054 |
| 6 | Midwest Hydrofracking LLC | 86 | 133 | 1,135 |
| 7 | Heeg Well And Pump LLC | 55 | 73 | 1,276 |
| 8 | Haupt Well & Pump Co. Inc. | 37 | 543 | 2,807 |
| 9 | Bertram Junemann Well Drilling Inc. | 12 | 64 | 4,104 |
| 10 | Oium, Kelly Well Drilling Inc. | 12 | 12 | 1,018 |
| 11 | Rush Well Drilling LLC | 8 | 32 | 689 |
| 12 | Rush, Jon A | 8 | 8 | 128 |
| 13 | Komarek, Ronald A SR | 6 | 6 | 1,080 |
| 14 | J & K Pump & Well Service | 6 | 6 | 570 |
| 15 | Ronald A Komarek SR | 5 | 20 | 4,389 |
| 16 | Olson Ken Well Drlg & Pump Ser Inc. | 2 | 4 | 2,219 |
| 17 | Nelsons Plbg & Elec Inc. | 2 | 2 | 1,344 |
| 18 | Jesse W Brunner | 1 | 496 | 2,585 |
| 19 | Donald S Fedie | 1 | 8 | 3,661 |
| 20 | Pelke Plbg & Well Drlg Inc. | 1 | 1 | 1,997 |
| 21 | Walker, Bruce A | 1 | 1 | 635 |
| 22 | Schaitel, Jake J | 1 | 1 | 667 |
| 23 | Foster's Septic & Well Service LLC | 1 | 1 | 1,330 |
| 24 | Komarek SR, Ronald A | 1 | 1 | 338 |
| 25 | William D Brunner | — | 433 | 3,124 |
| 26 | Kline Well @ Pump Inc. | — | 424 | 794 |
| 27 | Kline Well & Pump Inc. | — | 295 | 533 |
| 28 | Ditter Well Drilling Inc. | — | 178 | 303 |
| 29 | Haupt Well @ Pump Co. Inc. | — | 158 | 1,673 |
| 30 | Sylvester R Haupt | — | 147 | 1,031 |
| 31 | Brunner William D | — | 95 | 595 |
| 32 | Brian Heeg | — | 79 | 1,195 |
| 33 | John J Hatfield | — | 68 | 329 |
| 34 | Heeg Well Drlg LLC | — | 38 | 842 |
| 35 | Gene H Maurer | — | 38 | 811 |
| 36 | Heeg Brian | — | 35 | 190 |
| 37 | Kelly Oium | — | 31 | 1,836 |
| 38 | Peak Well Drilling LLC | — | 31 | 702 |
| 39 | Haupt Sylvester R | — | 26 | 136 |
| 40 | Sam's Well Drilling Inc. | — | 14 | 21,895 |
| 41 | Soik R J Plbg & Htg Inc. | — | 10 | 1,060 |
| 42 | Jeff Hatfield | — | 10 | 75 |
| 43 | Hatfield John J | — | 10 | 38 |
| 44 | Jon A Rush | — | 9 | 345 |
| 45 | Rush & Sons Well Drilling LLC | — | 9 | 169 |
| 46 | Mark A Maurer | — | 9 | 88 |
| 47 | Maurer Gene H | — | 8 | 115 |
| 48 | Rush Robert L | — | 8 | 109 |
| 49 | Sams Rotary Drillers Inc. | — | 7 | 12,103 |
| 50 | Rick Brandl | — | 5 | 280 |
| 51 | Christopher J Olson | — | 4 | 733 |
| 52 | Peak Vern | — | 4 | 128 |
| 53 | Lang Well Drilling Co. Inc. | — | 3 | 2,591 |
| 54 | Bertram Junemann Well Drilling I | — | 3 | 955 |
| 55 | Nehls @ Webster Well Drilling | — | 3 | 589 |
| 56 | Olson Bros Well Drilling Co. Inc. | — | 3 | 332 |
| 57 | Layne Christensen Company | — | 3 | 222 |
| 58 | Daniel J Steffes | — | 2 | 4,646 |
| 59 | Pelke Glen Plbg Htg & Well Drlg Inc. | — | 2 | 871 |
| 60 | Olson Ken Well Drlg @ Pump Ser I | — | 2 | 537 |
| 61 | Medary Drilling Co. | — | 2 | 355 |
| 62 | Olson Daniel B | — | 2 | 206 |
| 63 | Haupt | — | 2 | 77 |
| 64 | Rhinelander Well Drilling Inc. | — | 1 | 5,196 |
| 65 | Kramer Well Drilling Inc. | — | 1 | 7,044 |
| 66 | Dj's Water Service | — | 1 | 1,216 |
| 67 | Thomas G Butterfield | — | 1 | 3,136 |
| 68 | Kouba Well Drilling Inc. | — | 1 | 2,335 |
| 69 | Pelke Plbg Htg @ Well Drlg Inc. | — | 1 | 887 |
| 70 | Larry L Willmarth | — | 1 | 452 |
| 71 | Bertram Junemann WD Inc. | — | 1 | 323 |
| 72 | Raymond J Ludwig | — | 1 | 294 |
| 73 | Pelke Glen Plbg Htg @ Well Drlg | — | 1 | 261 |
| 74 | Vern Peak | — | 1 | 202 |
| 75 | Daniel B Olson | — | 1 | 169 |
| 76 | Kelly Oium Well Drilling Inc. | — | 1 | 123 |
Ranked by wells drilled in Clark County since 2016 (then all-time), from the full WI DNR
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 Clark County?
Brunner Well Drilling LLC has drilled the most Clark County wells in the recent record — 248 since 2016, 249 in the county all-time.
How many well drilling companies work in Clark County?
76 companies in the WI DNR record have drilled wells in Clark County; 22 of them have drilled somewhere in Wisconsin since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Clark County?
The median drilled depth in Clark County is 95 ft, based on 8,097 recorded wells. Depths, water levels, and yields are on the Clark County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on
the Clark County wells page.
Drill in Clark County?
If your company is on this list, your profile is free to claim — confirm your details and add your
contact information so Clark County property owners reach you directly.
Claim your profile Free to claim · built from WI DNR public well-log records.