InterOil Exploration and Production ASA (OSL:IOX) Cyclically Adjusted PB Ratio: (As of Jul. 17, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

OSL:IOX InterOil Exploration and Production ASA OSL:IOX
22 GF Score
Price kr3.61
GF Value kr1.28
Valuation Significantly Overvalued
! 7 Warning Signs
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What is InterOil Exploration and Production ASA Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


InterOil Exploration and Production ASA  (OSL:IOX) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


InterOil Exploration and Production ASA Cyclically Adjusted PB Ratio Related Terms


InterOil Exploration and Production ASA Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for InterOil Exploration and Production ASA's Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio Chart

InterOil Exploration and Production ASA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
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InterOil Exploration and Production ASA Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Cyclically Adjusted PB 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 0.00 0.00 0.00 0.00 0.00

OSL:IOX vs COP, EOG, FANG: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas E&P subindustry, InterOil Exploration and Production ASA's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

* The bar in red indicates where InterOil Exploration and Production ASA's Cyclically Adjusted PB Ratio falls into.


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

InterOil Exploration and Production ASA Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

InterOil Exploration and Production ASA's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 is calculated as:

For example, InterOil Exploration and Production ASA's adjusted Book Value per Share data for the fiscal year that ended in Dec25 was:

Adj_Book=Book Value per Share/CPI of Dec25 (Change)*Current CPI (Dec25)
=-30.736/139.1000*139.1000
=-30.736

Current CPI (Dec25) = 139.1000.

InterOil Exploration and Production ASA Annual Data

Book Value per Share CPI Adj_Book
201612 -1.277 104.400 -1.701
201712 -8.556 106.100 -11.217
201812 -18.437 109.800 -23.357
201912 -9.579 111.300 -11.972
202012 -3.340 112.900 -4.115
202112 -2.072 118.900 -2.424
202212 -1.496 125.900 -1.653
202312 -7.890 131.900 -8.321
202412 -17.961 134.800 -18.534
202512 -30.736 139.100 -30.736

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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 kr3.61 is trading 182% above its estimated GF Value™ of kr1.28. GuruFocus considers InterOil Exploration and Production ASA to be Significantly Overvalued.

Key valuation signals for OSL:IOX:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: kr1.28 vs. price of kr3.61 (182% 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

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

kr3.61
Price
kr1.28
GF Value