InterOil Exploration and Production ASA (OSL:IOX) Shiller PE Ratio: (As of Sep. 21, 2026)

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OSL:IOX InterOil Exploration and Production ASA OSL:IOX
22 GF Score
Price kr2.76
GF Value kr1.18
Valuation Significantly Overvalued
! 7 Warning Signs
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What is InterOil Exploration and Production ASA Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


InterOil Exploration and Production ASA  (OSL:IOX) 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.


InterOil Exploration and Production ASA Shiller PE Ratio Related Terms


InterOil Exploration and Production ASA Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for InterOil Exploration and Production ASA'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.

InterOil Exploration and Production ASA Shiller PE Ratio Chart

InterOil Exploration and Production ASA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
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InterOil Exploration and Production ASA Quarterly Data
Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25
Shiller PE Ratio 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 - - - - -

OSL:IOX vs COP, EOG, OXY: Shiller PE Ratio Comparison

For the Oil & Gas E&P subindustry, InterOil Exploration and Production ASA'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.


InterOil Exploration and Production ASA Shiller PE Ratio vs Oil & Gas Industry

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

* The bar in red indicates where InterOil Exploration and Production ASA's Shiller PE Ratio falls into.


OSL:IOX
22GF Score
InterOil Exploration and Production ASA OSL:IOX
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

InterOil Exploration and Production ASA Shiller PE Ratio Calculation

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.

InterOil Exploration and Production ASA's E10 for the quarter that ended in Mar. 2025 is calculated as:

For example, InterOil Exploration and Production ASA's adjusted earnings per share data for the three months ended in Mar. 2025 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Mar. 2025 (Change)*Current CPI (Mar. 2025)
=-2.6515/136.1000*136.1000
=-2.652

Current CPI (Mar. 2025) = 136.1000.

InterOil Exploration and Production ASA Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201506 -0.683 100.100 -0.928
201509 -0.113 100.600 -0.153
201512 -8.531 100.900 -11.507
201603 -0.864 102.500 -1.147
201606 0.825 103.800 1.082
201609 -0.832 104.200 -1.087
201612 -4.191 104.400 -5.463
201703 -1.687 105.000 -2.187
201706 -3.405 105.800 -4.381
201709 -2.391 105.900 -3.073
201712 -0.816 106.100 -1.047
201803 -0.338 107.300 -0.428
201806 0.097 108.500 0.122
201809 -0.987 109.500 -1.226
201812 -3.729 109.800 -4.622
201903 -1.639 110.400 -2.020
201906 -0.506 110.600 -0.623
201909 -1.384 111.100 -1.695
201912 -5.548 111.300 -6.784
202003 -0.552 111.200 -0.676
202006 -1.572 112.100 -1.908
202009 -1.464 112.900 -1.765
202012 -2.726 112.900 -3.286
202103 -1.008 114.600 -1.197
202106 0.124 115.300 0.146
202109 0.078 117.500 0.090
202112 -0.148 118.900 -0.170
202203 0.058 119.800 0.066
202206 0.432 122.600 0.480
202209 0.433 125.600 0.469
202212 -0.811 125.900 -0.877
202303 -0.609 127.600 -0.649
202306 -1.486 130.400 -1.551
202309 -0.751 129.800 -0.788
202312 -4.842 131.900 -4.996
202403 -0.848 132.600 -0.870
202406 -1.840 133.800 -1.872
202409 -2.089 133.700 -2.126
202412 -4.478 134.800 -4.521
202503 -2.652 136.100 -2.652

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.

Is InterOil Exploration and Production ASA (OSL:IOX) Overvalued in 2026?

Based on GuruFocus' analysis, InterOil Exploration and Production ASA stock appears to be overvalued. The current stock price of kr2.76 is trading 133.9% above its estimated GF Value™ of kr1.18. GuruFocus considers InterOil Exploration and Production ASA to be Significantly Overvalued.

Key valuation signals for OSL:IOX:

  • Shiller PE Ratio:
  • GF Value™: kr1.18 vs. price of kr2.76 (133.9% above fair value)
  • GF Score™: 22/100 with 7 warning signs

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


InterOil Exploration and Production ASA Business Description

Industry EnergyOil & Gas
Address c/o Advokatfirmaet Schjodt AS, Ruselokkveien 14, Oslo, NOR, 0251
InterOil Exploration and Production ASA is an upstream oil exploration and production company. It is engaged in the exploration, development, production, purchase, and sale of oil and natural gas deposits. The group has a reportable segment namely Colombia and Argentina, which consists of upstream activities including oil and natural gas exploration, field development, and production from its licenses in Colombia, which is the group's strategic business unit. The operations of the firm are carried out in Colombia and Argentina.
22GF Score

Get the complete analysis for OSL:IOX

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

kr2.76
Price
kr1.18
GF Value