Business Wire·Dec 1, 2025, 6:30 AM ET

Clean Energy Begins Injecting RNG into the Pipeline at One of the Country's Largest RNG Projects, South Fork Dairy

Clean Energy Fuels Corp. completed its renewable natural gas (RNG) facility at South Fork Dairy in Dimmitt, Texas, & has begun injecting pipeline-quality RNG into the interstate natural gas pipeline.
The facility is now one of the largest RNG production plants in the country, capable of producing approximately 2.6 million gallons of low-carbon RNG annually from a herd of 17,500 dairy cows.
The $85 million project, financed entirely by Clean Energy, broke ground in July 2024 & utilizes four anaerobic digesters to process up to 300,000 gallons of dairy manure daily.
Clean Energy will receive 100 percent of the RNG fuel produced at South Fork Dairy & the project achieved production milestones on time & on budget despite a temporary construction pause due to a fire.
The RNG produced has received full EPA approval to generate Renewable Identification Numbers (RINs) under the Renewable Fuel Standard program, with California Low Carbon Fuel Standard credits expected in Q1 2026.
Agriculture & the transportation sector account for nearly 38 percent of U.S. GHG emissions, & RNG from farm waste offers a negative carbon-intensity score while costing significantly less than diesel.
T Diamond Bar & Montrose Environmental assisted Clean Energy in completing the facility, which is part of a network delivering RNG to over 600 stations nationwide.