The drilling companies that have actually completed wells within 15 miles of Darby, ranked by how many, from the well logs each company filed with the state. Darby is in Ravalli County.
In the last five years, 264 wells were completed within 15 miles of Darby, by 13 different drilling companies. The most active was Eslinger Drilling & Pump Service, with 133. The three busiest companies drilled 76 percent of them, so work here is concentrated among a few outfits.
| Company | Wells within 15 mi | Latest | Closest well |
|---|---|---|---|
| Eslinger Drilling & Pump Service | 133 | 2026 | 1 mi |
| Aqwa Drilling Llc | 40 | 2025 | 1 mi |
| Eagle Drilling And Pump Service | 27 | 2026 | 1 mi |
| Western Montana Drilling Co. | 20 | 2026 | 1 mi |
| S & S Well Drilling, Llc | 15 | 2025 | 1 mi |
| Ravalli Drilling Inc | 9 | 2026 | 12 mi |
| Jeromes Drilling Co | 6 | 2025 | 2 mi |
| Camp Well Drilling And Pump Service | 5 | 2024 | 3 mi |
| Ak Drilling Inc | 4 | 2026 | 12 mi |
| Coldwater Drilling And Pumps | 2 | 2024 | 12 mi |
| Ace Drilling | 1 | 2024 | 15 mi |
| Holt Services Inc | 1 | 2022 | 1 mi |
| Okeefe Drilling Co | 1 | 2021 | 14 mi |
Source: MBMG Ground Water Information Center well logs completed 2021 to 2026, counted by distance from the center of Darby. 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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