BALTIMORE (May 14, 2026) —Constellation (Nasdaq: CEG), the largest producer of clean energy in the U.S. and a leading supplier of energy products and services, and Pine Creek RNG, an independent developer, owner, and operator of renewable natural gas (RNG) production assets, today announced a long-term agreement that includes Constellation’s purchase of a minority equity interest in five operating Pine Creek RNG production facilities. The portfolio of facilities, located in Washington, Utah, Iowa and Illinois, currently produces approximately 1.5 million MMBtus of RNG per year, and the agreement creates the framework for Constellation and Pine Creek to develop approximately 3.0 million MMBtus annually of additional RNG production.

“This agreement reinforces Constellation’s long-term commitment to expanding sustainable natural gas solutions that help customers decarbonize without compromising reliability,” said Jim McHugh, Senior Executive Vice President and Chief Commercial Officer, Constellation. “Our ownership in these facilities and our ability to market the RNG production and environmental attributes will help Constellation more easily match supply to demand for gas decarbonization products that benefit our customers.”

“Our partnership with Constellation is a defining milestone for Pine Creek,” said Kevin Orchard, CEO of Pine Creek RNG. “This transaction reflects the strength of our team and industry partnerships. Aligning with Constellation’s industry-leading capabilities further supports our ability to execute at velocity and scale, and we look forward to the opportunities ahead.”

RNG is pipeline-quality natural gas derived from organic matter decomposition, known as biogas. Raw biogas is produced in various locations, including landfills, wastewater treatment plants, and industrial and agricultural waste digesters. After being purified, RNG is injected into an interstate pipeline and used like regular natural gas. It can also be used for on-site power consumption or fuel for fleet vehicles.

To learn more about Constellation’s products and services for customers, including RNG, visit Constellation.com.

To learn more about Pine Creek RNG, visit Pine Creek RNG.