Clean Energy Fuels Corp. (CLNE) Q2 2025 Earnings Call Transcript

Clean Energy Fuels Corp. (CLNE) reported robust Q2 2025 results, including $102 million in revenue and $17.5 million in adjusted EBITDA, driven by over 61 million gallons of renewable natural gas (RNG) sold and a 21% sequential increase in RNG volumes. Consequently, the company raised its full-year 2025 adjusted EBITDA guidance to $60-65 million, reflecting strong underlying business performance despite regulatory uncertainties. While acknowledging slower-than-expected adoption of the Cummins X15N engine and ramp-up challenges at some dairy RNG production facilities, CLNE remains optimistic on the heavy-duty trucking market given reduced X15N incremental costs and emerging regulatory clarity. The firm also anticipates benefits from the 45Z production tax credit for dairy RNG and firming Low Carbon Fuel Standard (LCFS) prices, reinforcing its market leadership through expanding production and fueling infrastructure.

Analysis

Clean Energy Fuels reported a solid second quarter for 2025, raising its full-year adjusted EBITDA guidance to a range of $60-$65 million, signaling confidence in its core business. The performance was underpinned by revenue of $102 million and the sale of over 61 million gallons of renewable natural gas (RNG), a 21% sequential increase from a challenging first quarter. Despite this strength, the company faces a dual-speed reality. The core downstream business with transit and refuse clients remains robust, and base fuel margins are improving due to favorable oil-to-gas spreads and higher station volumes, exemplified by increased Amazon warrant charges. However, the critical heavy-duty trucking segment remains a headwind, with adoption of the Cummins X15N engine slower than anticipated, a situation exacerbated by a weak overall truck market where sales have dropped significantly. Positively, the incremental cost of an X15N truck has fallen to approximately $75,000, improving the payback period. On the upstream front, while two major dairy RNG projects in Texas and Idaho are progressing on schedule for year-end production, five of the six currently operating projects are in a slower-than-expected ramp-up phase, tempering the 2025 production outlook. Future catalysts include the strengthened 45Z production tax credit, which awaits Treasury guidance, and an expected firming of LCFS credit prices, which should help offset recent price weakness.

Key Decisions for Investors

• Investors should weigh the raised 2025 EBITDA guidance, driven by strong core fueling performance, against the disclosed headwinds from a slow heavy-duty truck market and delayed ramp-up at five new dairy RNG projects.
• Monitor key upcoming catalysts, including the final U.S. Treasury guidance on the 45Z production tax credit and any firming of LCFS credit prices, which could materially improve future profitability.
• Consider that while the adoption rate of the Cummins X15N engine remains a near-term risk, the company's strategic position is strengthening through reduced engine costs, broader OEM support, and an expanding, difficult-to-replicate fueling network.
• Closely track management's execution on bringing its new dairy RNG projects to full production capacity, as successful ramp-ups are critical to de-risking the upstream strategy and improving long-term margins.