Bringing Quality and Sustainability to Our Communities
A Texas-based water resources and environmental engineering firm.
A Legacy
of Success
With a reputation built by our founder, Rich Oller, on water and wastewater operations and management, our purpose is to provide a “boots-on-the-ground” approach to solving our clients’ problems. At OEI, we have, and continue to, place the utmost importance on our client relationships and assuring solutions that bring concepts to fruition.