Best well drillers in Dewey County, South Dakota
Not a pay-to-play list: these are the 19 drilling companies with wells on record in Dewey County, ranked by wells actually drilled here — 454 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 Dewey Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | Gregg's Drilling & Excavating | 35 | 177 | 663 |
| 2 | Keller Drilling | 11 | 11 | 97 |
| 3 | Stretch's Well Service, Inc. | 7 | 20 | 1,175 |
| 4 | American Engineering Testing,Inc. | 6 | 13 | 687 |
| 5 | Pesicka's Drilling | 2 | 44 | 204 |
| 6 | Aberle Well Services | — | 92 | 350 |
| 7 | Oahe Drilling Company | — | 22 | 148 |
| 8 | Huron Drilling, Incorporated | — | 14 | 2,246 |
| 9 | Dakota Boring Company | — | 10 | 994 |
| 10 | Rapid Drilling LLC | — | 9 | 140 |
| 11 | Knutson Well Drilling, Inc. | — | 9 | 1,296 |
| 12 | Independent Drilling Co., Inc. | — | 8 | 1,188 |
| 13 | Prairie Consulting Group, Inc. | — | 7 | 296 |
| 14 | Adair Drilling | — | 6 | 108 |
| 15 | Gregory Water & Energy Inc. | — | 4 | 167 |
| 16 | Pullman Well Drilling | — | 3 | 3,380 |
| 17 | Joe Hartman Well Drilling | — | 3 | 45 |
| 18 | Dakota Environmental, Inc. | — | 1 | 181 |
| 19 | Respec, Inc. | — | 1 | 507 |
Ranked by wells drilled in Dewey 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 Dewey County?
Gregg's Drilling & Excavating has drilled the most Dewey County wells in the recent record — 35 since 2016, 177 in the county all-time.
How many well drilling companies work in Dewey County?
19 companies in the SD DANR record have drilled wells in Dewey County; 11 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 Dewey County?
The median drilled depth in Dewey County is 90 ft, based on 487 recorded wells. Depths, water levels, and yields are on the Dewey County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Dewey County wells page.
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Claim your profileFree to claim · built from SD DANR public well-log records.