Stamper Oil & Gas (STU:TMP0) E10: €-1.91 (As of Sep. 2025)


STU:TMP0 Stamper Oil & Gas Corp STU:TMP0
34 GF Score
Price €0.06
! 1 Warning Sign
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What is Stamper Oil & Gas E10?

Stamper Oil & Gas STU:TMP0 34 E10 is €-1.91 as of Sep. 2025. GuruFocus rates STU:TMP0 with a GF Score™ of 34/100. The stock has 1 warning sign investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Stamper Oil & Gas's adjusted earnings per share data for the three months ended in Sep. 2025 was €-0.222. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-1.91 for the trailing ten years ended in Sep. 2025.

During the past 3 years, the average E10 Growth Rate was 17.60% per year. During the past 5 years, the average E10 Growth Rate was 17.90% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Stamper Oil & Gas was 53.00% per year. The lowest was -4.60% per year. And the median was 17.60% per year.

As of today (2026-06-28), Stamper Oil & Gas's current stock price is €0.05789. Stamper Oil & Gas's E10 for the quarter that ended in Sep. 2025 was €-1.91. Stamper Oil & Gas's Shiller PE Ratio of today is .


Stamper Oil & Gas  (STU:TMP0) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, 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 P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Stamper Oil & Gas E10 Related Terms


Stamper Oil & Gas E10 Historical Data

* Premium members only.

The historical data trend for Stamper Oil & Gas's E10 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.

Stamper Oil & Gas E10 Chart

Stamper Oil & Gas Annual Data
Trend Jun15 Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -6.36 -12.04 -12.81 -8.48 -8.30

Stamper Oil & Gas Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25
E10 Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -6.36 0.00 -7.53 -2.96 -1.91

STU:TMP0 vs COP, EOG, OXY: E10 Comparison

For the Oil & Gas E&P subindustry, Stamper Oil & Gas'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.


Stamper Oil & Gas Shiller PE Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Stamper Oil & Gas's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Stamper Oil & Gas's Shiller PE Ratio falls into.


STU:TMP0
34GF Score
Stamper Oil & Gas Corp STU:TMP0
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Stamper Oil & Gas E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get 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.

For example, Stamper Oil & Gas's adjusted earnings per share data for the three months ended in Sep. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Sep. 2025 (Change)*Current CPI (Sep. 2025)
=-0.222/130.2871*130.2871
=-0.222

Current CPI (Sep. 2025) = 130.2871.

Stamper Oil & Gas Quarterly Data

per share eps CPI Adj_EPS
201512 -2.907 99.947 -3.789
201603 -2.948 101.054 -3.801
201606 -1.362 102.002 -1.740
201609 -2.147 101.765 -2.749
201612 -0.561 101.449 -0.720
201703 -0.551 102.634 -0.699
201706 -1.660 103.029 -2.099
201709 -0.539 103.345 -0.680
201712 -2.090 103.345 -2.635
201803 -1.980 105.004 -2.457
201806 -3.604 105.557 -4.448
201809 -0.248 105.636 -0.306
201812 -0.008 105.399 -0.010
201903 -0.028 106.979 -0.034
201906 0.555 107.690 0.671
201909 -0.072 107.611 -0.087
201912 -0.066 107.769 -0.080
202003 -0.057 107.927 -0.069
202006 0.060 108.401 0.072
202009 -0.037 108.164 -0.045
202012 -0.002 108.559 -0.002
202103 -0.199 110.298 -0.235
202106 -0.026 111.720 -0.030
202109 -0.106 112.905 -0.122
202112 -0.127 113.774 -0.145
202203 -0.019 117.646 -0.021
202206 -0.039 120.806 -0.042
202209 -0.020 120.648 -0.022
202212 -0.055 120.964 -0.059
202303 -0.018 122.702 -0.019
202306 -0.029 124.203 -0.030
202309 -0.018 125.230 -0.019
202312 -0.072 125.072 -0.075
202403 -0.023 126.258 -0.024
202406 -0.011 127.522 -0.011
202409 -0.018 127.285 -0.018
202412 0.000 127.364 0.000
202503 -0.002 129.181 -0.002
202506 -0.042 129.892 -0.042
202509 -0.222 130.287 -0.222

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of €-1.91 mean?
Stamper Oil & Gas (STU:TMP0) has a E10 of €-1.91 as of Sep. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Stamper Oil & Gas and its competitors.
Is Stamper Oil & Gas' E10 too high?
Stamper Oil & Gas' current E10 is €-1.91. Overall, Stamper Oil & Gas has a GF Score™ of 34/100, reflecting its overall financial health beyond just this single metric.
How does Stamper Oil & Gas' E10 compare to COP and EOG?
Stamper Oil & Gas' E10 of €-1.91 can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for an Oil & Gas company?
A good E10 depends on the Oil & Gas industry context. However, E10 should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Stamper Oil & Gas and its competitors. Stamper Oil & Gas's current E10 is €-1.91. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Stamper Oil & Gas stock overvalued right now?
Stamper Oil & Gas (STU:TMP0) has a current E10 of €-1.91. The current E10 is €-1.91. Stamper Oil & Gas' overall GF Score™ is 34/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Stamper Oil & Gas (STU:TMP0), the current E10 is €-1.91 as of Sep. 2025. 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.

Stamper Oil & Gas Business Description

Industry EnergyOil & Gas
Address 1030 West Georgia Street, Suite 1507, Vancouver, BC, CAN, V6E 2Y3
Stamper Oil & Gas Corp is a Canada-based exploration-stage company. The Company's principal business activity is the exploration and development of petroleum and natural gas interests. The Company operates in one business segment.
34GF Score

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E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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