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Idemitsu Kosan CoIDKOF 68 Debt-to-EBITDA is 1.27 as of Mar. 2026, which is 69% below its 10-year median of 4.11. GuruFocus rates IDKOF with a GF Score™ of 68/100 and a GF Value™ of $6.69 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 704 Oil & Gas companies, Idemitsu Kosan Co ranks worse than 73.01% on this metric.
Debt-to-EBITDA measures a company's ability to pay off its debt.
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 Idemitsu Kosan Co's Debt-to-EBITDA or its related term are showing as below:
IDKOF'
s Debt-to-EBITDA Range Over the Past 10 Years
Min: 2.6 Med: 4.11 Max: 12.98
Current: 3.95
During the past 13 years, the highest Debt-to-EBITDA Ratio of Idemitsu Kosan Co was 12.98. The lowest was 2.60. And the median was 4.11.
IDKOF's Debt-to-EBITDA is ranked worse than 73.01% of 704
companies
in the Oil & Gas industry
Industry Median: 2.015
vs IDKOF: 3.95
Idemitsu Kosan Co (OTCPK:IDKOF) Debt-to-EBITDA Explanation
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.
Idemitsu Kosan Co Debt-to-EBITDA Related Terms
Idemitsu Kosan Co Debt-to-EBITDA Historical Data
* Premium members only.
The historical data trend for Idemitsu Kosan Co'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.
For the Oil & Gas Refining & Marketing subindustry, Idemitsu Kosan Co'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.
Idemitsu Kosan Co Debt-to-EBITDA vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Idemitsu Kosan Co's Debt-to-EBITDA distribution charts can be found below:
* The bar in red indicates where Idemitsu Kosan Co'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 (Mar. 2026) EBITDA data.
Idemitsu Kosan Co (IDKOF) has a Debt-to-EBITDA of 1.27 as of Mar. 2026. Debt-to-EBITDA ratio represents the ratio of total debt to total earnings before interest, taxes, depreciation and amortization. View historical data on Idemitsu Kosan Co. This is 69% below median its historical median of 4.11. Over the past decade, Idemitsu Kosan Co's Debt-to-EBITDA has ranged from 2.60 to 12.98. According to the industry distribution chart, Idemitsu Kosan Co ranks #514 out of 704 companies in the Oil & Gas industry, placing it in the top 73%.
Is Idemitsu Kosan Co's Debt-to-EBITDA too high?
Idemitsu Kosan Co's current Debt-to-EBITDA of 1.27 is 69% below median its 10-year median of 4.11. Over the past 10 years, this metric has ranged from a low of 2.60 to a high of 12.98. The Oil & Gas industry median Debt-to-EBITDA is 2.02. Idemitsu Kosan Co's value of 1.27 is 37% below this industry median. Based on the distribution chart, Idemitsu Kosan Co ranks #514 out of 704 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Idemitsu Kosan Co has a GF Score™ of 68/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Idemitsu Kosan Co's Debt-to-EBITDA compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Idemitsu Kosan Co ranks #514 out of 704 companies for Debt-to-EBITDA. This places Idemitsu Kosan Co in the lower half of its industry. The industry median Debt-to-EBITDA is 2.02. Idemitsu Kosan Co's value of 1.27 is 37% below this benchmark. Historically, Idemitsu Kosan Co's own Debt-to-EBITDA has ranged from 2.60 to 12.98 over the past decade. While the company's 10-year median is 4.11 vs. the industry median of 2.02, Idemitsu Kosan Co has consistently been below the industry average. 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 2.02, based on 704 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. Idemitsu Kosan Co's current Debt-to-EBITDA of 1.27 is 37% below 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 Idemitsu Kosan Co. For the Oil & Gas industry, the median Debt-to-EBITDA is 2.02 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Idemitsu Kosan Co's current Debt-to-EBITDA is 1.27, which is 69% below median its own 10-year median of 4.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Idemitsu Kosan Co stock overvalued right now?
Based on GuruFocus' analysis, Idemitsu Kosan Co (IDKOF) is currently considered Modestly Overvalued. The stock's GF Value™ is $6.69, compared to a current price of $7.50 — trading 12.1% above its estimated fair value. The current Debt-to-EBITDA is 1.27, which is 69% below median its 10-year median of 4.11 and 37% below the Oil & Gas industry median of 2.02. Idemitsu Kosan Co's overall GF Score™ is 68/100 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 Idemitsu Kosan Co (IDKOF), the current Debt-to-EBITDA is 1.27 as of Mar. 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 Idemitsu Kosan Co (IDKOF) Overvalued in 2026?
Based on GuruFocus' analysis, Idemitsu Kosan Co stock appears to be overvalued.
The current stock price of $7.50 is trading 12.1% above its estimated GF Value™ of $6.69.
GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.
Key valuation signals for IDKOF:
Debt-to-EBITDA: 1.27 (69% below median its 10-year median of 4.11)
GF Value™: $6.69 vs. price of $7.50 (12.1% above fair value)
Industry Position: 37% below the Oil & Gas median (#514 of 704)
No single metric tells the full story. See the IDKOF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Idemitsu Kosan Co Ltd engages in a variety of activities globally that include petroleum products, oil exploration and production, coal, and other businesses. The company operates through five segments. The Basic Chemicals segment makes and sells olefins and aroma products. Electricity/Renewable Energy covers thermal, solar, and wind power generation, electricity sales, and solar business. Fuel Oil handles production, trading, and import/export of refined petroleum. The Highly Functional Materials segment includes lubricants, chemicals, electronic materials, paving materials, and agri-bio. The Resource segment explores, develops, and sells crude oil, natural gas, and coal. Others cover insurance and intra-group services. It generates the majority of its revenue from the Fuel oil segment.
68GF Score
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