Best well drillers in Sully County, South Dakota
Not a pay-to-play list: these are the 20 drilling companies with wells on record in Sully County, ranked by wells actually drilled here — 350 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 Sully Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | Stretch's Well Service, Inc. | 22 | 41 | 1,175 |
| 2 | Pullman Well Drilling | 3 | 37 | 3,380 |
| 3 | Dakota Boring Company | — | 138 | 994 |
| 4 | Huron Drilling, Incorporated | — | 41 | 2,246 |
| 5 | Independent Drilling Co., Inc. | — | 30 | 1,188 |
| 6 | Environmental Technologies, Inc. | — | 15 | 310 |
| 7 | Respec, Inc. | — | 14 | 507 |
| 8 | Norbeck & Nicholson Co. | — | 8 | 411 |
| 9 | Aaa Well Company | — | 5 | 33 |
| 10 | Hutmacher Drilling, Inc. | — | 4 | 855 |
| 11 | Cain Drilling | — | 4 | 219 |
| 12 | American Engineering Testing,Inc. | — | 3 | 687 |
| 13 | Empire Irrigation Drilling Company | — | 3 | 334 |
| 14 | Dakota Environmental, Inc. | — | 1 | 181 |
| 15 | Chase Drilling | — | 1 | 319 |
| 16 | Bullis Bros. Well Drilling | — | 1 | 377 |
| 17 | Sather Drilling, Inc. | — | 1 | 179 |
| 18 | Terry Kemmet Dba K & K Well Drilling | — | 1 | 56 |
| 19 | Jennings Well Drilling, Inc. | — | 1 | 37 |
| 20 | Sumners Drilling | — | 1 | 28 |
Ranked by wells drilled in Sully 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 Sully County?
Stretch's Well Service, Inc. has drilled the most Sully County wells in the recent record — 22 since 2016, 41 in the county all-time.
How many well drilling companies work in Sully County?
20 companies in the SD DANR record have drilled wells in Sully County; 6 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 Sully County?
The median drilled depth in Sully County is 80 ft, based on 413 recorded wells. Depths, water levels, and yields are on the Sully County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Sully County wells page.
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