About Us
Leading Environmental Infrastructure
Milestone Environmental is a leading environmental infrastructure company headquartered in Houston that delivers reliable, safe, compliant, and best-in-class waste management solutions. Our strong expertise in adhering to regulatory standards helps businesses mitigate risk and achieve environmental goals while protecting human health. Milestone operates a growing network of advanced, regulated, and permitted facilities, where the company processes and permanently disposes of a broad range of complex waste streams, protecting businesses from environmental liability for the long-term. Milestone has built an unmatched network of 14 high-quality, strategically located facilities in Texas and New Mexico, with additional infrastructure in development across the southeastern United States. These facilities utilize a patented, advanced injection technology to permanently and securely isolate waste thousands of feet underground. Each year, Milestone manages approximately one billion gallons of waste, contributing to cleaner land, water and air. In 2024 alone, Milestone sequestered approximately 435,783 MT of CO2e – equivalent to emissions from 2,576 roundtrip flights from New York to London – and had a net negative carbon footprint of 282,483 CO2e.
In October 2023, Milestone became a portfolio company of SK Capital Partners, a sector-focused, growth-oriented private investment firm comprised of a team with extensive operating, ownership, and investment experience. Our change in ownership also marked changes in the composition of our Board of Directors, which is comprised of five members. Our Board continues to have oversight of our sustainability efforts and disclosures, as well as our overall financial performance and Risk Management processes.
A legacy of carbon management solutions
Milestone provides dependable, cost-effective, end-to-end waste management solutions that enable waste producers to operate efficiently, manage risk, and achieve their environmental performance goals. Through years of operational excellence, Milestone has refined the proprietary slurry injection technology it first acquired in 2014.
Our expansion began with the inauguration of our Pecos facility in 2016—the first of its type in the Permian Basin. Since then, we have strategically expanded our presence, operating the largest network of state-of-the-art slurry injection facilities for oil and gas and waste in the U.S., in strategic locations throughout Texas across the Permian in Orla, Stanton, Big Spring, and south of Midland, as well as extending operations into New Mexico with our Battle Axe facility.
Responding to growing demand for comprehensive, responsible solid waste management solutions, we inaugurated our first carbon-sink landfill in Orla in 2019, followed by facilities in Upton County in 2020. In 2021, we acquired the Center slurry facility in Texas, establishing a leadership position in the environmental infrastructure space in the Haynesville Basin. In 2024, we expanded our Permian Basin capacity through the acquisitions of three active slurry injection facilities in Mentone, Midkiff, and Big Spring.
This comprehensive waste management model aligns with global environmental priorities and positions Milestone as a leader in our nation’s growing industrial economy.
Our founding principle
"Milestone was founded to boldly advance sustainability in the energy industry and beyond. Our offerings enable companies to reduce their carbon footprint and enhance their ability to meet sustainability goals."
-Gabriel Rio, President and CEO
Sustainability is central to Milestone’s mission, with solutions that support universal environmental goals for clean water, air, and land by permanently isolating waste in secure geological formations. Each year, Milestone manages approximately one billion gallons of waste, contributing to cleaner land, water, and air. Our values reflect our commitment to the environment, our workforce, our community, and our customers.
Our Mission
Milestone’s Mission is to Manage Waste Sustainably. Founded to boldly advance Sustainability, Milestone succeeds by delivering best practices for the safe and secure management and disposal of a broad range of waste streams.
Our Values
Milestone’s values reflect our commitment to the environment, our customers, our workforce, and our communities.
Associations We Support
Leading Forward For Stakeholders
Whether you are an operator, a landowner, or a policymaker, Milestone knows you are a key stakeholder in our mission. See how we are leading the charge in secure environmental infrastructure, services, and carbon management.
Operators
Put your waste to work
See how we are helping operators reduce their carbon footprint while mitigating environmental risk.
Landowners
Protect your land and your legacy
We provide a safe and responsible alternative to reserve pits and landfarming, allowing owners to protect their land for generations to come.
Policymakers
Shape a better future
We make it easy for policymakers to pursue a forward-looking carbon agenda that benefits all while transitioning to a more sustainable future.
Our Team
Our commitment to personal service starts at the top and drills deep to our processes and culture.
