Clean Energy Fuels Corp (CLNE) — Free Cash Flow Generation Index
Clean Energy Fuels Corp (CLNE) has a Free Cash Flow Generation Index of 0.50x as of December 2025. Free cash flow of $6.50 Million represents 0% of operating cash flow ($13.11 Million). Explore CLNE capex to operating cash flow ratio to see what proportion of operating cash flow is directed to capital expenditures.
FCF Generation Index
Free Cash Flow
Operating Cash Flow
Capital Expenditures
Clean Energy Fuels Corp Free Cash Flow Generation Index (2005–2025)
Historical FCF Generation Index trend for Clean Energy Fuels Corp across 12 annual periods. For the full cash flow conversion analysis, see CLNE cash flow conversion.
Annual Free Cash Flow Generation for Clean Energy Fuels Corp (2005–2025)
Year-by-year Free Cash Flow Generation Index for Clean Energy Fuels Corp. Check CLNE cash reinvestment to operating cash ratio to assess the company's total reinvestment commitment from operating cash flow.
| Year | FCG Index | Free Cash Flow (USD) | Operating CF | Capital Expenditures | YoY Change |
|---|---|---|---|---|---|
| 2025 | 0.70x | $59.85 Million | $85.53 Million | $25.68 Million | ▲ +10911.0% |
| 2024 | -0.01x | $-418.00K | $64.58 Million | $65.00 Million | ▲ +99.6% |
| 2023 | -1.77x | $-77.50 Million | $43.78 Million | $121.28 Million | ▼ -993.2% |
| 2022 | 0.20x | $13.23 Million | $66.73 Million | $53.50 Million | ▼ -33.9% |
| 2021 | 0.30x | $12.39 Million | $41.30 Million | $28.91 Million | ▼ -61.7% |
| 2020 | 0.78x | $47.77 Million | $61.04 Million | $13.27 Million | ▲ +164.9% |
| 2019 | -1.21x | $-14.81 Million | $12.28 Million | $27.09 Million | ▼ -460.2% |
| 2018 | 0.33x | $12.72 Million | $37.98 Million | $25.26 Million | ▼ -31.2% |
| 2016 | 0.49x | $22.42 Million | $46.06 Million | $23.64 Million | ▲ +137.5% |
| 2009 | -1.30x | $-17.23 Million | $13.27 Million | $30.50 Million | ▲ +81.7% |
| 2007 | -7.09x | $-50.32 Million | $7.10 Million | $57.42 Million | ▼ -1915.9% |
| 2005 | 0.39x | $14.29 Million | $36.61 Million | $22.32 Million | — |