The drilling companies that have actually completed wells within 15 miles of Dewey, ranked by how many, from the well logs each company filed with the state. Dewey is in Silver Bow County.
In the last five years, 62 wells were completed within 15 miles of Dewey, by 5 different drilling companies. The most active was Okeefe Drilling Co, with 36. The three busiest companies drilled 97 percent of them, so work here is concentrated among a few outfits.
| Company | Wells within 15 mi | Latest | Closest well |
|---|---|---|---|
| Okeefe Drilling Co | 36 | 2025 | 0 mi |
| Ak Drilling Inc | 21 | 2026 | 3 mi |
| Graham Drilling Inc | 3 | 2024 | 7 mi |
| Graham Drilling & Pumps | 1 | 2026 | 15 mi |
| Western Water Wells | 1 | 2023 | 3 mi |
Source: MBMG Ground Water Information Center well logs completed 2021 to 2026, counted by distance from the center of Dewey. Only logs that name a company are ranked. This is a count of public records, not a recommendation; see how to check a driller before you hire. For depth, yield and water level near a specific property, see Montana Water Report.
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