Best well drillers in Lake County, South Dakota
Not a pay-to-play list: these are the 22 drilling companies with wells on record in Lake County, ranked by wells actually drilled here — 243 logged wells in the South Dakota DANR well completion report database (NR68) (records as of 2026-08-24). Every number links back to the public record.
| # | Company | In Lake Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | Thein Well Company, Inc. | 7 | 34 | 942 |
| 2 | Geotek Engineering & Testing | 5 | 22 | 661 |
| 3 | Dave Putzke Well Drilling, Inc. | 4 | 7 | 392 |
| 4 | Lacey Well Drilling | 3 | 65 | 910 |
| 5 | Kaiser Well Drilling | 2 | 10 | 461 |
| 6 | Pullman Well Drilling | 1 | 10 | 3,380 |
| 7 | Sam Well Company | 1 | 1 | 54 |
| 8 | Torgrude Well Drilling | — | 35 | 248 |
| 9 | Grimshaw Drilling Company | — | 14 | 108 |
| 10 | Respec, Inc. | — | 13 | 507 |
| 11 | Maxim Technologies, Inc. | — | 9 | 661 |
| 12 | Wsp Usa | — | 4 | 97 |
| 13 | Huron Drilling, Incorporated | — | 3 | 2,246 |
| 14 | Sioux Well Drilling | — | 3 | 146 |
| 15 | Northern Technologies, LLC | — | 3 | 145 |
| 16 | Steffl Drilling & Pump, Inc. | — | 2 | 217 |
| 17 | Dakota Environmental, Inc. | — | 2 | 181 |
| 18 | Prairie Consulting Group, Inc. | — | 2 | 296 |
| 19 | Empire Irrigation Drilling Company | — | 1 | 334 |
| 20 | Kaiser Well Works | — | 1 | 85 |
| 21 | Rust, Tony & Son | — | 1 | 54 |
| 22 | T & J Redder Well & Electric Inc. | — | 1 | 40 |
Ranked by wells drilled in Lake County since 2016 (then all-time), from the full SD DANR 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?
Thein Well Company, Inc. has drilled the most Lake County wells in the recent record — 7 since 2016, 34 in the county all-time.
How many well drilling companies work in Lake County?
22 companies in the SD DANR record have drilled wells in Lake County; 9 of them have drilled somewhere in South Dakota 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 57 ft, based on 273 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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Claim your profileFree to claim · built from SD DANR public well-log records.