Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
A high Debt-to-EBITDA ratio generally means that a company may spend more time to paying off its debt. According to Joel Tillinghast's BIG MONEY THINKS SMALL: Biases, Blind Spots, and Smarter Investing, a ratio of Debt-to-EBITDA exceeding four is usually considered scary unless tangible assets cover the debt.
The historical rank and industry rank for Clean Energy Fuels's Debt-to-EBITDA or its related term are showing as below:
FRA:WIQ'
s Debt-to-EBITDA Range Over the Past 10 Years
Min: -89.47 Med: -0.21 Max: 152.3
Current: 152.3
During the past 13 years, the highest Debt-to-EBITDA Ratio of Clean Energy Fuels was 152.30. The lowest was -89.47. And the median was -0.21.
FRA:WIQ's Debt-to-EBITDA is ranked worse than 99.58% of 718
companies
in the Oil & Gas industry
Industry Median: 1.93
vs FRA:WIQ: 152.30
A high Debt-to-EBITDA ratio generally means that a company may spend more time to paying off its debt.
According to Joel Tillinghast's BIG MONEY THINKS SMALL: Biases, Blind Spots, and Smarter Investing, a ratio of Debt-to-EBITDA exceeding four is usually considered scary unless tangible assets cover the debt.
Clean Energy Fuels Debt-to-EBITDA Related Terms
Clean Energy Fuels Debt-to-EBITDA Historical Data
* Premium members only.
The historical data trend for Clean Energy Fuels's Debt-to-EBITDA can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
FRA:WIQ vs SGU, FGPR, BDCO: Debt-to-EBITDA Comparison
For the Oil & Gas Refining & Marketing subindustry, Clean Energy Fuels's Debt-to-EBITDA, along with its competitors' market caps and Debt-to-EBITDA data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Clean Energy Fuels Debt-to-EBITDA vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Clean Energy Fuels's Debt-to-EBITDA distribution charts can be found below:
* The bar in red indicates where Clean Energy Fuels's Debt-to-EBITDA falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
In the calculation of annual Debt-to-EBITDA, the EBITDA of the last fiscal year is used. In calculating the annualized quarterly data,
the EBITDA data used here is four times the quarterly (Jun. 2026) EBITDA data.
Clean Energy Fuels (FRA:WIQ) has a Debt-to-EBITDA of 63.00 as of Jun. 2026. Debt-to-EBITDA ratio represents the ratio of total debt to total earnings before interest, taxes, depreciation and amortization. View historical data on Clean Energy Fuels. According to the industry distribution chart, Clean Energy Fuels ranks #715 out of 718 companies in the Oil & Gas industry, placing it in the top 99.6%.
Is Clean Energy Fuels' Debt-to-EBITDA too high?
Clean Energy Fuels' current Debt-to-EBITDA is 63.00. The Oil & Gas industry median Debt-to-EBITDA is 1.93. Clean Energy Fuels' value of 63.00 is 3164.2% above this industry median. Based on the distribution chart, Clean Energy Fuels ranks #715 out of 718 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Clean Energy Fuels has a GF Score™ of 63/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Clean Energy Fuels' Debt-to-EBITDA compare to SGU and FGPR?
According to the Oil & Gas industry distribution chart, Clean Energy Fuels ranks #715 out of 718 companies for Debt-to-EBITDA. This places Clean Energy Fuels in the lower half of its industry. The industry median Debt-to-EBITDA is 1.93. Clean Energy Fuels' value of 63.00 is 3164.2% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Debt-to-EBITDA for an Oil & Gas company?
The median Debt-to-EBITDA among Oil & Gas companies is 1.93, based on 718 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-EBITDA significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-EBITDA should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Clean Energy Fuels's current Debt-to-EBITDA of 63.00 is 3164.2% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Debt-to-EBITDA mean?
A high Debt-to-EBITDA can signal that a stock is expensive relative to its fundamentals. Debt-to-EBITDA ratio represents the ratio of total debt to total earnings before interest, taxes, depreciation and amortization. View historical data on Clean Energy Fuels. For the Oil & Gas industry, the median Debt-to-EBITDA is 1.93 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Clean Energy Fuels's current Debt-to-EBITDA is 63.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Clean Energy Fuels stock overvalued right now?
Based on GuruFocus' analysis, Clean Energy Fuels (FRA:WIQ) is currently considered Possible Value Trap. The stock's GF Value™ is €2.46, compared to a current price of €1.57 — trading 36.2% below its estimated fair value. The current Debt-to-EBITDA is 63.00 and 3164.2% above the Oil & Gas industry median of 1.93. Clean Energy Fuels' overall GF Score™ is 63/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-EBITDA calculated?
Debt-to-EBITDA is calculated from a company's financial statements. For Clean Energy Fuels (FRA:WIQ), the current Debt-to-EBITDA is 63.00 as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Clean Energy Fuels (FRA:WIQ) Overvalued in 2026?
Based on GuruFocus' analysis, Clean Energy Fuels stock appears to be undervalued.
The current stock price of €1.57 is trading 36.2% below its estimated GF Value™ of €2.46.
GuruFocus considers Clean Energy Fuels to be Possible Value Trap.
Key valuation signals for FRA:WIQ:
Debt-to-EBITDA: 63.00
GF Value™: €2.46 vs. price of €1.57 (36.2% below fair value)
Industry Position: 3164.2% above the Oil & Gas median (#715 of 718)
No single metric tells the full story. See the FRA:WIQ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Clean Energy Fuels Corp is a natural gas marketer and retailer operating in the United States and Canada. The company supplies compressed natural gas and liquefied natural gas for the United States (U.S.) and Canadian transportation markets. The majority of revenue is generated within the U.S. and mostly consists of compressed natural gas. The firm operates by purchasing natural gas from local utilities; compressing, cooling, or liquefying it at company-owned plants; and selling natural gas products through company-owned or customer-owned fueling stations. It also builds, operates, and maintains natural gas fueling stations for customers.
63GF Score
Get the complete analysis for FRA:WIQ
Debt-to-EBITDA is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
FRA:WIQ has been successfully added to your 
