The drilling companies that have actually completed wells within 15 miles of Sheridan, ranked by how many, from the well logs each company filed with the state. Sheridan is in Madison County.
In the last five years, 142 wells were completed within 15 miles of Sheridan, by 9 different drilling companies. The most active was Graham Drilling Inc, with 87. The three busiest companies drilled 75 percent of them, so work here is concentrated among a few outfits.
| Company | Wells within 15 mi | Latest | Closest well |
|---|---|---|---|
| Graham Drilling Inc | 87 | 2025 | 1 mi |
| Graham Drilling & Pumps | 10 | 2026 | 1 mi |
| Red Tiger Drilling | 10 | 2024 | 1 mi |
| Excel Pump And Well Inc. | 9 | 2025 | 1 mi |
| Ak Drilling Inc | 8 | 2026 | 3 mi |
| Okeefe Drilling Co | 8 | 2026 | 1 mi |
| Pioneer Technical Services Inc | 7 | 2024 | 9 mi |
| Old Town Drilling | 2 | 2024 | 5 mi |
| Lindsay Drilling Co Inc | 1 | 2022 | 14 mi |
Source: MBMG Ground Water Information Center well logs completed 2021 to 2026, counted by distance from the center of Sheridan. 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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