Clean Energy Names JJ Armstrong Chief Financial Officer
Clean Energy Fuels Corp. named JJ Armstrong as Chief Financial Officer effective immediately, succeeding Robert Vreeland. Armstrong has been with Clean Energy since 2014 and previously worked 11 years at EY; the company framed the move as part of its continued focus on growth and execution.

What happened
Clean Energy Fuels Corp. announced that JJ Armstrong was named Chief Financial Officer and will succeed Robert Vreeland, with the change effective immediately. The company release identifies Armstrong as becoming one of the company’s named executive officers and frames the appointment as part of its leadership team adjustments.
Sources: S1
Background on JJ Armstrong
The company states Armstrong joined Clean Energy in 2014 and advanced from Director of SEC Reporting and Divisional Controller to Vice President and Corporate Controller. Clean Energy describes his experience across finance and accounting functions, including financial reporting, mergers, debt and equity transactions, and treasury operations. The release also says Armstrong spent 11 years at EY prior to joining Clean Energy.
Sources: S1
Transition and company commentary
Clean Energy’s CEO Clay Corbus is quoted as endorsing Armstrong’s appointment and thanking outgoing CFO Robert Vreeland for his service as he heads into retirement. The release frames the leadership change in the context of the company’s focus on growth, new technologies, and delivering shareholder value.
Sources: S1
Company description and forward-looking note
The press release reiterates Clean Energy’s mission to decarbonize transportation through renewable natural gas (RNG) and describes its operations in fueling stations and RNG production. It also contains a forward-looking statements section noting risks, uncertainties, and that actual results could differ materially from expectations.
Sources: S1
Why this may matter (inference)
A new CFO with internal tenure and prior public accounting experience could affect the company’s financial reporting continuity, treasury and capital markets interactions, and execution of transactions, according to the company’s description of Armstrong’s responsibilities and background. This is an inference from the facts the company provided, not an independent finding.
Sources: S1
What remains uncertain
- All statements about Armstrong’s expected role, priorities, and potential impact are company-provided forward-looking or descriptive statements and are not independently verified in this release.
- The release does not provide quantitative guidance, a transition timeline beyond 'effective immediately', or independent confirmation of the reasons behind the leadership change.
- Forward-looking statements in the release state that actual results and timing could differ materially from expectations and that the company does not undertake an obligation to update those statements.
Sources
- Clean Energy Names JJ Armstrong Chief Financial OfficerCLNE Press Releases · 2026-10-06