Established in 1959
Expert Water Well & Drilling Services in Montana
With an in-house machine shop, proven processes, and experienced crews, O’Keefe Drilling delivers reliable water, geotechnical, environmental, and exploration drilling across Montana for projects that demand safety, efficiency, and dependable results.
No obligation. Just a conversation about your site and goals.
The reality of
Drilling Projects
Unpredictable conditions are part of drilling. Experience is what keeps projects moving.

Remote Sites
Tough-to-reach locations and limited access can complicate logistics and timelines. Our crews are equipped and experienced to operate efficiently in remote Montana terrain.

Unplanned Shifts
Subsurface conditions can change without warning, affecting scope and schedule. We plan for the unexpected and adapt quickly when conditions shift in the field.

Challenging Conditions
Active rigs, variable ground, and demanding environments require disciplined safety practices and proven procedures. Preparation matters.

Regulatory Requirements
Permits, reporting, and compliance can slow projects down. Our team understands regulatory requirements and helps navigate the process without unnecessary delays.
The O’Keefe Drilling Difference
Experience, preparation, and the ability to adapt when conditions change in Your Drilling Project
Drilling projects rarely go exactly as planned. Conditions shift, access changes, and challenges emerge that cannot be solved with standard tools or off-the-shelf approaches.
What sets O’Keefe Drilling apart is how we prepare for those realities. Our experienced crews are supported by an in-house machine shop, proven field processes, and a versatile fleet of rigs that allow us to adapt quickly and keep projects moving. When conditions change, we build the solutions needed to stay on track.
Our Drilling & Sampling Services
Drilling solutions built around your site, scope, and conditions
Water Drilling
Environmental Drilling
Geotechnical Drilling
Mineral Exploration
Machine Shop
Pump Sales & Service
Who We Work With
Trusted by professionals, organizations, and landowners across Montana and the Western States
Engineers & Geotechnical Firms
We support engineers with accurate drilling, dependable execution, and subsurface data collection that informs confident design and planning decisions.
Contractors & Construction Teams
Contractors rely on O’Keefe Drilling to integrate smoothly into project schedules, adapt in the field, and keep work moving when conditions change.
Municipalities & Public Agencies
Public projects require accountability, compliance, and long-term reliability. We deliver drilling services that meet regulatory requirements and public expectations.
Private Landowners
For landowners, drilling projects can feel unfamiliar and high-stakes. We take the time to explain options, answer questions, and guide the process from start to finish.
About Us
Montana Legacy & Community Roots
O’Keefe Drilling was established in 1959, and our roots in Montana run deep. For nearly six decades, we have built our reputation by doing the work right, showing up when it matters, and standing behind the results.
We live and work in the communities we serve. That local connection brings accountability to every project, whether we are drilling a private well or supporting critical public infrastructure. Our history is measured not just in years, but in long-standing relationships, repeat partnerships, and trust earned over time.

Established in 1959
Nearly 60 years of experience serving Montana communities with dependable drilling solutions.
Established
1959
Testimonials
Trusted by Professionals Across Montana
Engineers, contractors, municipalities, and private landowners rely on O’Keefe Drilling for dependable results on projects of every scale.

I’ve worked with O’Keefe Drilling on municipal wells, irrigation wells, pumping systems, and environmental sampling and monitoring wells for more than 30 years. They consistently bring the right equipment, the latest technology, and experienced crews to every project. I would recommend O’Keefe on any drilling project.
David Erickson, PG
President, Water & Environmental Technologies

O’Keefe Drilling provides dependable geotechnical drilling services that make my job easier. Their rigs perform reliably across variable terrain and tight timelines, and they consistently deliver results we can count on.
David J. Barrick, P.E.
Geotechnical Engineer

We’ve worked with O’Keefe Drilling for over 20 years, and they have consistently delivered, even when projects presented difficult environmental and geotechnical challenges. We trust them with complex work because they follow through.
Brad Archibald
President, Pioneer Technologies
Drilling & Sampling FAQs
Frequently Asked Questions
What types of drilling projects do you specialize in?
We provide water well drilling, environmental drilling, geotechnical drilling, mineral exploration, and pump-related services for residential, commercial, and public-sector projects.
Do you work with private landowners as well as commercial clients?
Yes. We work with engineers, contractors, municipalities, and private landowners. Every project receives the same level of preparation and care, regardless of size.
How early should O’Keefe be involved in a project?
The earlier we are involved, the better. Early planning allows us to identify potential challenges, align on scope, and help projects move more efficiently once drilling begins.
Do you help with permits and regulatory requirements?
We work closely with clients and project teams to ensure drilling activities align with applicable regulations and reporting requirements.
How far do you travel for projects?
While we are based in Montana, we regularly support projects throughout the region depending on scope and requirements.
What makes your in-house machine shop important?
Our machine shop allows us to fabricate and modify tools quickly when conditions change, reducing downtime and keeping projects on track.