JPTXF (Japan Petroleum Exploration Co) E10: $0.65 (As of Mar. 2026)

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JPTXF Japan Petroleum Exploration Co Ltd JPTXF
73 GF Score
Price $13.75
GF Value $9.02
! 3 Warning Signs
View Full Analysis

What is Japan Petroleum Exploration Co E10?

Japan Petroleum Exploration Co JPTXF +1.10% 73 E10 is $0.65 as of Mar. 2026. GuruFocus rates JPTXF with a GF Score™ of 73/100 and a GF Value™ of $9.02. The stock has 3 warning signs 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.

Japan Petroleum Exploration Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.336. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $0.65 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Japan Petroleum Exploration Co's average E10 Growth Rate was 29.40% per year. During the past 3 years, the average E10 Growth Rate was 32.10% per year. During the past 5 years, the average E10 Growth Rate was 34.50% 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 Japan Petroleum Exploration Co was 70.00% per year. The lowest was -24.20% per year. And the median was 9.85% per year.

As of today (2026-08-08), Japan Petroleum Exploration Co's current stock price is $13.75. Japan Petroleum Exploration Co's E10 for the quarter that ended in Mar. 2026 was $0.65. Japan Petroleum Exploration Co's Shiller PE Ratio of today is 21.15.

During the past 13 years, the highest Shiller PE Ratio of Japan Petroleum Exploration Co was 49.80. The lowest was 8.43. And the median was 16.36.


Japan Petroleum Exploration Co  (OTCPK:JPTXF) 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.

Japan Petroleum Exploration Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=13.75/0.65
=21.15

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Japan Petroleum Exploration Co was 49.80. The lowest was 8.43. And the median was 16.36.


Be Aware

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


Japan Petroleum Exploration Co E10 Related Terms


Japan Petroleum Exploration Co E10 Historical Data

* Premium members only.

The historical data trend for Japan Petroleum Exploration Co'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.

Japan Petroleum Exploration Co E10 Chart

Japan Petroleum Exploration Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.13 0.31 0.30 0.52 0.65

Japan Petroleum Exploration Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 0.52 0.52 0.43 0.55 0.65

JPTXF vs COP, EOG, FANG: E10 Comparison

For the Oil & Gas E&P subindustry, Japan Petroleum Exploration Co'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.


Japan Petroleum Exploration Co Shiller PE Ratio vs Oil & Gas Industry

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

* The bar in red indicates where Japan Petroleum Exploration Co's Shiller PE Ratio falls into.


JPTXF
73GF Score
Japan Petroleum Exploration Co Ltd JPTXF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Japan Petroleum Exploration Co 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, Japan Petroleum Exploration Co's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.336/112.7000*112.7000
=0.336

Current CPI (Mar. 2026) = 112.7000.

Japan Petroleum Exploration Co Quarterly Data

per share eps CPI Adj_EPS
201606 0.063 98.100 0.072
201609 -0.109 98.000 -0.125
201612 0.094 98.400 0.108
201703 0.049 98.100 0.056
201706 0.173 98.500 0.198
201709 0.072 98.800 0.082
201712 -1.180 99.400 -1.338
201803 -0.021 99.200 -0.024
201806 -0.072 99.200 -0.082
201809 0.147 99.900 0.166
201812 0.280 99.700 0.317
201903 0.106 99.700 0.120
201906 0.290 99.800 0.327
201909 0.101 100.100 0.114
201912 0.144 100.500 0.161
202003 0.333 100.300 0.374
202006 -0.310 99.900 -0.350
202009 0.085 99.900 0.096
202012 0.108 99.300 0.123
202103 0.034 99.900 0.038
202106 0.226 99.500 0.256
202109 -4.033 100.100 -4.541
202112 1.063 100.100 1.197
202203 1.596 101.100 1.779
202206 0.423 101.800 0.468
202209 0.405 103.100 0.443
202212 0.324 104.100 0.351
202303 0.664 104.400 0.717
202306 0.339 105.200 0.363
202309 0.368 106.200 0.391
202312 0.226 106.800 0.238
202403 0.428 107.200 0.450
202406 0.278 108.200 0.290
202409 0.263 108.900 0.272
202412 1.344 110.700 1.368
202503 0.180 111.100 0.183
202506 0.425 111.700 0.429
202509 0.300 112.000 0.302
202512 0.319 113.000 0.318
202603 0.336 112.700 0.336

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 $0.65 mean?
Japan Petroleum Exploration Co (JPTXF) has a E10 of $0.65 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Japan Petroleum Exploration Co and its competitors.
Is Japan Petroleum Exploration Co's E10 too high?
Japan Petroleum Exploration Co's current E10 is $0.65. Overall, Japan Petroleum Exploration Co has a GF Score™ of 73/100, reflecting its overall financial health beyond just this single metric.
How does Japan Petroleum Exploration Co's E10 compare to COP and EOG?
Japan Petroleum Exploration Co's E10 of $0.65 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 Japan Petroleum Exploration Co and its competitors. Japan Petroleum Exploration Co's current E10 is $0.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Japan Petroleum Exploration Co stock overvalued right now?
Japan Petroleum Exploration Co (JPTXF) has a current E10 of $0.65. The stock's GF Value™ is $9.02, compared to a current price of $13.75 — trading 52.4% above its estimated fair value. The current E10 is $0.65. Japan Petroleum Exploration Co's overall GF Score™ is 73/100 with 3 warning signs 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 Japan Petroleum Exploration Co (JPTXF), the current E10 is $0.65 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 Japan Petroleum Exploration Co (JPTXF) Overvalued in 2026?

Based on GuruFocus' analysis, Japan Petroleum Exploration Co stock appears to be overvalued. The current stock price of $13.75 is trading 52.4% above its estimated GF Value™ of $9.02.

Key valuation signals for JPTXF:

  • E10: $0.65
  • GF Value™: $9.02 vs. price of $13.75 (52.4% above fair value)
  • GF Score™: 73/100 with 3 warning signs

No single metric tells the full story. See the JPTXF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Japan Petroleum Exploration Co Business Description

Industry EnergyOil & Gas
Other Exchanges 1662:JapanJP9:Germany
Address Sapia Tower, 1-7-12, Marunouchi, Chiyoda-ku, Tokyo, JPN, 100-0005
Japan Petroleum Exploration Co Ltd is a drilling and exploration company that specializes in the production of crude oil and liquefied natural gas. Majority of the company's revenue is derived from oil and gas fields in Japan, with additional production coming from various international positions. Japan Petroleum Exploration serves natural gas to electric power companies, local distribution companies, and various industrial users. It also supplies and sells crude oil to petroleum refiners and trading companies.
73GF Score

Get the complete analysis for JPTXF

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

$13.75
Price
$9.02
GF Value