Fossil Rock Services

A family-owned and operated company

What We Do

Well Site, Pipeline, ROW, and Power Line Construction and Reclamation

Erosion and sedimentation control

Commercial and Industrial Maintenance

About Fossil Rock Services

Fossil Rock Services was founded in 2012 in response to the growing oil and gas industry in western Pennsylvania and eastern Ohio.  The expansion of this industry provided a new opportunity for a local company to step up as a locally based provider of high-quality services and sustainable jobs in the region.

Fossil Rock Services takes pride in offering the best people, equipment, and materials available to serve your needs.  Our core family team has nearly 100 combined years experience in general construction, heavy civil construction and engineering, earth moving, project coordination, and construction management that will contribute to the success of your project. 

Our work sits at the intersection of heavy and civil construction, oil and gas/utility infrastructure development, commercial site development, erosion control and environmental construction, and large-scale, naturalized landscaping.

With our headquarters near Butler, Pennsylvania and a satellite operations yard near Caldwell, Ohio, Fossil Rock Services is your locally owned, conveniently located energy field support solution.

Whether you need miles of pipelines reclaimed or compost filter sock installed, acres of grass established, access roads constructed, or a commercial renovation completed, our team is ready to support you.

Fossil Rock is your go-to partner for thorough, high quality field construction and reclamation and commercial/industrial maintenance.  Fossil Rock delivers not only great results, but also peace of mind.


Only the Best


Customer- and Results-focused

We have one goal:  To produce the absolute best results for our customers in the most efficient, effective, and safe manner.  


Eco Friendly Construction

Many of our services are designed to maintain, improve, or restore the natural environment before, during, or after construction.   


High Quality Construction Management

Our team has decades of experience managing complex construction projects.  

Established in

Miles of filter sock installed since 2016

Acres hydroseeded

square yards of erosion matting installed

The Fossil Rock Leadership Team




The beginning of the Marcellus Shale activity in western Pennsylvania brought with it many out-of-state license plates. Leslie McConnell co-founded Fossil Rock Services with a goal to keep oil and gas jobs and work local. Leslie’s background in real estate management, project management, strategic planning, systems and operations design, and data and analytics allows Fossil Rock to build accurate estimates, maximize efficiency, and examine its work and business trends to plan for the future.

Connect with Leslie by email or on LinkedIn.



Vice President

Tom McConnell co-founded Fossil Rock to be the premier local provider of energy field services in the Appalachian Region.  When the Marcellus Shale gas and oil industry started in Pennsylvania and Ohio, Tom knew he was meant to be part of the action.  With his degree in Construction Management from Pennsylvania College of Technology and his 20+ years of experience managing multi-million dollar heavy, highway, bridge, and other construction projects, he knows the ins and outs of how to get things done and how to do it right.

Connect with Tom by email or on LinkedIn.

Sean Thomas

Sean Thomas

General Manager

Bio coming soon!

Connect with Sean by email.



Business Manager

Matt keeps Fossil Rock’s business running.  He keeps tabs on logistics, business operations, and human resources to make sure all the moving parts are moving in the right direction.  

Connect with Matt by email or on LinkedIn.  



General Superintendent

Ray is a founding member of the Fossil Rock team.  He ran our first crews and his attention to quality and results is most definitely part of Fossil Rock’s success.

Connect with Ray by email.

Jake Drozynski

Jake Drozynski


Jake Drozynski is one of the newest members of the FRS team. Building on his background in concrete and asphalt work, Jake broadens Fossil Rock’s estimating and project management capacity. Growing up local to western Pennsylvania, his goal is not only to be a part of construction projects that boost the economy in the area, but also to work towards protecting the environment that makes the Pennsylvania and the surrounding areas beautiful. Away from his desk, Jake runs a small sports broadcasting company and frequently can be found out on the golf course or on a river fishing.

Connect with Jake by email or on LinkedIn. Send quote requests to Estimating@FossilRockServices.com.

Kristen Lowe

Kristen Lowe

Business Operations

Bio coming soon!

Connect with Kristen by email.



Administrative Assistant

Michele keeps the Fossil Rock office organized and business operations running smoothly.  She is the friendly voice on the other end of the line.  Michele is also responsible for planning our excellent Fossil Rock social events.


Connect with Michele by email.


Fossil Rock Baseball

Flooding Clean-up

Helping out

Contact Us