Here are the 10-K annual reports from Clean Energy Fuels Corp. (CLNE) in our archive since June 2025, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-K covers the audited annual report, with the full financial statements, so if you follow CLNE and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full CLNE filings page.
Clean Energy Fuels Corp. outlines in its Form 10‑K how it is building a renewable natural gas (RNG)–focused transportation fuel business across the U.S. and Canada. The company delivered 237.4 million gasoline gallon equivalents (GGEs) of RNG in 2025, out of 468 million GGEs of total fuel sold.
RNG represented 88% of vehicle fuel sales in 2025, and management aims to reach 100%. Clean Energy supplies RNG through 582 fueling stations in 43 U.S. states and 27 in Canada, serving over 1,200 fleet customers operating more than 65,000 vehicles as of December 31, 2025.
The company is expanding RNG supply via joint ventures with TotalEnergies and bp, a joint development agreement with Maas Energy, and its own South Fork project. Collectively, 11 RNG projects in operation or construction are estimated to provide 14.5 million GGEs of annual capacity, all available for vehicle fuel.
A key earnings driver is the sale of Environmental Credits, including federal D3 RINs and California LCFS credits. Clean Energy estimates it generated 31% of U.S. D3 RINs and 46% of California Bio‑CNG/Bio‑LNG LCFS credits in 2025. The filing also highlights heavy reliance on supportive regulations, volatile credit pricing, competition from diesel and other low‑carbon fuels, and execution risks in RNG project development.