Clean Energy Fuels Corp (CLNE) has expanded its renewable natural gas (RNG) fueling network and fleet penetration significantly over recent years, leveraging a broad infrastructure of over 580 U.S. stations and 27 in Canada, serving over 65,000 vehicles. Despite this scale, the company’s financial performance has deteriorated sharply through 2025, marked by a net loss of $222 million and operating income decline of 340% year-over-year, driven by margin compression and operational challenges including major plant repairs at Pickens. Capital expenditures have been scaled back in response, focusing on prioritized RNG facility investments totaling an anticipated $42 million in 2026. With regulatory shifts affecting key environmental credit programs (RINs/LCFS) and inflationary cost pressures challenging pricing flexibility, Clean Energy Fuels walks a strategic tightrope balancing growth ambitions against profitability constraints.