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Tourmaline OilTRMLF -3.77%82 Shiller PE Ratio is 13.64 as of Sep. 16, 2026, which is 24% below its 10-year median of 17.90. GuruFocus rates TRMLF with a GF Score™ of 82/100 and a GF Value™ of $43.66 (Fairly Valued). The stock has 8 warning signs investors should review. Among 440 Oil & Gas companies, Tourmaline Oil ranks better than 63.86% on this metric.
As of today (2026-09-16), Tourmaline Oil's current share price is $44.10. Tourmaline Oil's E10 for the quarter that ended in Jun. 2026 was $3.23. Tourmaline Oil's Shiller PE Ratio for today is 13.64.
The historical rank and industry rank for Tourmaline Oil's Shiller PE Ratio or its related term are showing as below:
TRMLF'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 8.75 Med: 17.9 Max: 39.52
Current: 14.41
During the past years, Tourmaline Oil's highest Shiller PE Ratio was 39.52. The lowest was 8.75. And the median was 17.90.
TRMLF's Shiller PE Ratio is ranked better than 63.86% of 440
companies
in the Oil & Gas industry
Industry Median: 18.18
vs TRMLF: 14.41
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Tourmaline Oil's adjusted earnings per share data for the three months ended in Jun. 2026 was $0.342. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $3.23 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Tourmaline Oil (OTCPK:TRMLF) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Tourmaline Oil Shiller PE Ratio Related Terms
Tourmaline Oil Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Tourmaline Oil's Shiller PE Ratio 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.
TRMLF vs COP, EOG, OXY: Shiller PE Ratio Comparison
For the Oil & Gas E&P subindustry, Tourmaline Oil's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.
Tourmaline Oil Shiller PE Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Tourmaline Oil's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Tourmaline Oil's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
Tourmaline Oil's Shiller PE Ratio for today is calculated as
* 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.
Tourmaline Oil's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Tourmaline Oil's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Tourmaline Oil (TRMLF) has a Shiller PE Ratio of 13.64 as of Sep. 16, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Tourmaline Oil and its competitors. This is 24% below median its historical median of 17.90. Over the past decade, Tourmaline Oil's Shiller PE Ratio has ranged from 8.75 to 39.52. According to the industry distribution chart, Tourmaline Oil ranks #159 out of 440 companies in the Oil & Gas industry, placing it in the top 36.1%.
Is Tourmaline Oil's Shiller PE Ratio too high?
Tourmaline Oil's current Shiller PE Ratio of 13.64 is 24% below median its 10-year median of 17.90. Over the past 10 years, this metric has ranged from a low of 8.75 to a high of 39.52. The Oil & Gas industry median Shiller PE Ratio is 18.18. Tourmaline Oil's value of 13.64 is 25% below this industry median. Based on the distribution chart, Tourmaline Oil ranks #159 out of 440 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Tourmaline Oil has a GF Score™ of 82/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Tourmaline Oil's Shiller PE Ratio compare to COP and EOG?
According to the Oil & Gas industry distribution chart, Tourmaline Oil ranks #159 out of 440 companies for Shiller PE Ratio. This puts Tourmaline Oil in the upper half of its industry. The industry median Shiller PE Ratio is 18.18. Tourmaline Oil's value of 13.64 is 25% below this benchmark. Historically, Tourmaline Oil's own Shiller PE Ratio has ranged from 8.75 to 39.52 over the past decade. While the company's 10-year median is 17.90 vs. the industry median of 18.18, Tourmaline Oil 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 Shiller PE Ratio for an Oil & Gas company?
The median Shiller PE Ratio among Oil & Gas companies is 18.18, based on 440 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Tourmaline Oil's current Shiller PE Ratio of 13.64 is 25% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Tourmaline Oil and its competitors. For the Oil & Gas industry, the median Shiller PE Ratio is 18.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tourmaline Oil's current Shiller PE Ratio is 13.64, which is 24% below median its own 10-year median of 17.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tourmaline Oil stock overvalued right now?
Based on GuruFocus' analysis, Tourmaline Oil (TRMLF) is currently considered Fairly Valued. The stock's GF Value™ is $43.66, compared to a current price of $44.10 — trading 1% above its estimated fair value. The current Shiller PE Ratio is 13.64, which is 24% below median its 10-year median of 17.90 and 25% below the Oil & Gas industry median of 18.18. Tourmaline Oil's overall GF Score™ is 82/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Tourmaline Oil (TRMLF), the current Shiller PE Ratio is 13.64 as of Sep. 16, 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 Tourmaline Oil (TRMLF) Overvalued in 2026?
Based on GuruFocus' analysis, Tourmaline Oil stock appears to be overvalued.
The current stock price of $44.10 is trading 1% above its estimated GF Value™ of $43.66.
GuruFocus considers Tourmaline Oil to be Fairly Valued.
Key valuation signals for TRMLF:
Shiller PE Ratio: 13.64 (24% below median its 10-year median of 17.90)
GF Value™: $43.66 vs. price of $44.10 (1% above fair value)
Industry Position: 25% below the Oil & Gas median (#159 of 440)
No single metric tells the full story. See the TRMLF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tourmaline Oil is a Canadian natural gas producer with an integrated midstream gathering and processing operation. Its primary product is natural gas, but also produces natural gas liquids, condensates, and oil. As a result of multiple acquisitions, it has become the largest natural gas producer in Canada.
82GF Score
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