The drilling companies that have actually completed wells within 15 miles of Marion, ranked by how many, from the well logs each company filed with the state. Marion is in Flathead County.
In the last five years, 419 wells were completed within 15 miles of Marion, by 26 different drilling companies. The most active was Rm Drilling And Well Services, with 78. The three busiest companies drilled 47 percent of them, with the rest spread across smaller outfits.
| Company | Wells within 15 mi | Latest | Closest well |
|---|---|---|---|
| Rm Drilling And Well Services | 78 | 2026 | 0 mi |
| Davis Brothers Drilling | 73 | 2026 | 0 mi |
| Chambers Drilling Company | 46 | 2026 | 0 mi |
| Coldwater Drilling And Pumps | 42 | 2026 | 1 mi |
| Oh Well Drilling And Pump | 41 | 2026 | 1 mi |
| Billmayer Drilling | 27 | 2026 | 1 mi |
| Glazier Drilling | 24 | 2026 | 2 mi |
| Allwest Drilling Inc | 9 | 2024 | 1 mi |
| Aquasource Drilling Llc | 9 | 2026 | 2 mi |
| Alto Well And Pump, Llc | 8 | 2026 | 1 mi |
| Post Pump And Drilling Llc | 8 | 2022 | 1 mi |
| Water Resource Services | 8 | 2025 | 0 mi |
| Universal Drilling | 7 | 2025 | 0 mi |
| Cyclone Drilling Inc | 6 | 2026 | 0 mi |
| Okeefe Drilling Co | 6 | 2025 | 2 mi |
| Gove Contracting | 5 | 2025 | 4 mi |
| North Star Drilling Inc | 4 | 2024 | 2 mi |
| Cyclone Drilling And Pump Llc | 3 | 2026 | 1 mi |
| Gary Gove Drilling | 3 | 2025 | 0 mi |
| Evensix Inc. Dba Allwest Drilling | 2 | 2025 | 12 mi |
| Certified Well And Pump | 1 | 2022 | 10 mi |
| Jay Bick Drilling, Llc | 1 | 2026 | 5 mi |
| Minden Water Wells Inc | 1 | 2026 | 3 mi |
| Ponderosa Drilling Llc | 1 | 2026 | 10 mi |
| Rm Drilling & Well Service Inc. | 1 | 2022 | 3 mi |
| Water & Environmental Technologies | 1 | 2023 | 13 mi |
Source: MBMG Ground Water Information Center well logs completed 2021 to 2026, counted by distance from the center of Marion. 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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