Best well drillers in Corson County, South Dakota
Not a pay-to-play list: these are the 20 drilling companies with wells on record in Corson County, ranked by wells actually drilled here — 781 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 Corson Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | Gregg's Drilling & Excavating | 79 | 280 | 663 |
| 2 | Knutson Well Drilling, Inc. | 33 | 154 | 1,296 |
| 3 | Keller Drilling | 8 | 10 | 97 |
| 4 | Aberle Well Services | — | 77 | 350 |
| 5 | Ellison Well Drilling | — | 51 | 158 |
| 6 | Joe Hartman Well Drilling | — | 41 | 45 |
| 7 | Dons Drilling & Repair | — | 40 | 40 |
| 8 | Main Drilling, Inc. | — | 31 | 68 |
| 9 | Mcgregor Drilling | — | 29 | 29 |
| 10 | Gregory Water & Energy Inc. | — | 22 | 167 |
| 11 | American Engineering Testing,Inc. | — | 16 | 687 |
| 12 | Independent Drilling Co., Inc. | — | 6 | 1,188 |
| 13 | Northern Technologies, LLC | — | 5 | 145 |
| 14 | Terry Kemmet Dba K & K Well Drilling | — | 5 | 56 |
| 15 | Oahe Drilling Company | — | 4 | 148 |
| 16 | Stretch's Well Service, Inc. | — | 2 | 1,175 |
| 17 | Dakota Boring Company | — | 2 | 994 |
| 18 | Pesicka's Drilling | — | 2 | 204 |
| 19 | Huron Drilling, Incorporated | — | 2 | 2,246 |
| 20 | Adair Drilling | — | 2 | 108 |
Ranked by wells drilled in Corson 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 Corson County?
Gregg's Drilling & Excavating has drilled the most Corson County wells in the recent record — 79 since 2016, 280 in the county all-time.
How many well drilling companies work in Corson County?
20 companies in the SD DANR record have drilled wells in Corson County; 8 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 Corson County?
The median drilled depth in Corson County is 160 ft, based on 849 recorded wells. Depths, water levels, and yields are on the Corson County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Corson County wells page.
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Claim your profileFree to claim · built from SD DANR public well-log records.