Onterris Highlights Expanded Market Opportunities in Methane Emissions Management

LITTLE ROCK, Ark.--(BUSINESS WIRE)-- Onterris (NYSE: ONT), a global environmental solutions company solving complex challenges for planet and progress, today highlighted how a Proposed Rule recently published by the U.S. Environmental Protection Agency regarding federal methane regulations could create new opportunities for oil and gas operators to deploy emissions management technologies at greater scale, reducing emissions, improving operational efficiency and reducing costs.

The Proposed Rule, published on October 29, 2026, would reconsider components of the 2024 Clean Air Act methane regulation under 40 CFR Part 60 Subparts KKK, OOOO and OOOOa. One key proposal would expand regulatory acceptance of proven technology, enabling operators to detect emissions more frequently, identify leaks faster and manage methane emissions more effectively and affordably.

"Operators should not have to choose between compliance, operational efficiency, and emissions performance," said Vijay Manthripragada, President and Chief Executive Officer at Onterris. "This change provides a more efficient, cost-effective compliance option without sacrificing emissions detection performance. We see it as an opportunity to expand access to proven emissions management solutions that deliver both environmental benefits and business value."

The proposal changes under Appendix K would expand the use of Optical Gas Imaging (OGI) at natural gas processing facilities, providing operators with greater flexibility to deploy a proven and cost-effective alternative to traditional leak detection programs. Onterris has developed specialized Appendix K capabilities through investments in certified technicians, technical training programs, and rigorous QA/QC processes designed to support the program’s stringent monitoring requirements. Because Appendix K demands a higher level of technical discipline than conventional OGI inspections, operational execution and quality assurance is critical to program success. If adopted, the proposed regulations could significantly expand the market opportunity for advanced emissions monitoring services across the natural gas processing sector.

Onterris believes technology-enabled monitoring can help improve emissions outcomes. The Company's data-driven platform enables more frequent inspections and leak detection activities, helping operators identify and address emissions events faster than traditional approaches. This increased monitoring frequency can be achieved at significantly lower cost, allowing organizations to redirect resources toward growth and operational improvements.

"Technology is changing the economics of emissions management," said Jared Metcalf, Senior Vice President of Air Emissions Solutions. "With high-frequency monitoring and data-driven insights, operators can detect leaks faster, make more informed decisions, and achieve stronger environmental performance at a lower cost."

As operators evaluate their compliance, sustainability, and operational objectives, Onterris remains focused on helping customers achieve measurable emissions reductions through scalable, technology-enabled monitoring solutions.

About Onterris

Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unite science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and help protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. For more information, visit Onterris.com.

Investor Relations:
Adrianne Griffin
Senior Vice President, Investor Relations & Treasury
(949) 988-3383
ir@onterris.com

Media Relations:
Lauren Dowling
Senior Vice President, Marketing & Communications
(214) 514-9809
pr@onterris.com

Source: Onterris, Inc.

Released November 3, 2026