ONEOK (MEX:OKE) E10: MXN69.66 (As of Mar. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
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.

MEX:OKE ONEOK Inc MEX:OKE
57 GF Score
Price MXN1,643.00
GF Value MXN1,830.48
Valuation Modestly Undervalued
! 9 Warning Signs
View Full Analysis

What is ONEOK E10?

ONEOK MEX:OKE 57 E10 is MXN69.66 as of Mar. 2026. GuruFocus rates MEX:OKE with a GF Score™ of 57/100 and a GF Value™ of MXN1,830.48 (Modestly Undervalued). The stock has 9 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.

ONEOK's adjusted earnings per share data for the three months ended in Mar. 2026 was MXN22.180. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is MXN69.66 for the trailing ten years ended in Mar. 2026.

During the past 12 months, ONEOK's average E10 Growth Rate was 14.60% per year. During the past 3 years, the average E10 Growth Rate was 14.70% per year. During the past 5 years, the average E10 Growth Rate was 14.60% per year. During the past 10 years, the average E10 Growth Rate was 9.30% 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 ONEOK was 21.70% per year. The lowest was -2.90% per year. And the median was 8.50% per year.

As of today (2026-07-15), ONEOK's current stock price is MXN1643.00. ONEOK's E10 for the quarter that ended in Mar. 2026 was MXN69.66. ONEOK's Shiller PE Ratio of today is 23.59.

During the past 13 years, the highest Shiller PE Ratio of ONEOK was 42.94. The lowest was 10.65. And the median was 27.70.


ONEOK  (MEX:OKE) 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.

ONEOK's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1643.00/69.66
=23.59

* 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 ONEOK was 42.94. The lowest was 10.65. And the median was 27.70.


Be Aware

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


ONEOK E10 Related Terms


ONEOK E10 Historical Data

* Premium members only.

The historical data trend for ONEOK'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.

ONEOK E10 Chart

ONEOK Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 65.35

ONEOK 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 0.00 69.65 66.71 65.35 69.66

MEX:OKE vs MPLX, TRGP, LNG: E10 Comparison

For the Oil & Gas Midstream subindustry, ONEOK'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.


ONEOK Shiller PE Ratio vs Oil & Gas Industry

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

* The bar in red indicates where ONEOK's Shiller PE Ratio falls into.


MEX:OKE
57GF Score
ONEOK Inc MEX:OKE
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ONEOK 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, ONEOK'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)
=22.18/330.2130*330.2130
=22.180

Current CPI (Mar. 2026) = 330.2130.

ONEOK Quarterly Data

per share eps CPI Adj_EPS
201606 7.397 241.018 10.134
201609 8.314 241.428 11.371
201612 8.865 241.432 12.125
201703 7.720 243.801 10.456
201706 5.965 244.955 8.041
201709 7.804 246.819 10.441
201712 1.768 246.524 2.368
201803 11.627 249.554 15.385
201806 13.362 251.989 17.510
201809 14.029 252.439 18.351
201812 13.941 251.233 18.324
201903 15.712 254.202 20.410
201906 14.407 256.143 18.573
201909 14.609 256.759 18.788
201912 14.334 256.974 18.419
202003 -7.972 258.115 -10.199
202006 7.386 257.797 9.461
202009 15.464 260.280 19.619
202012 14.123 260.474 17.904
202103 17.579 264.877 21.915
202106 15.328 271.696 18.629
202109 18.095 274.310 21.783
202112 17.437 278.802 20.652
202203 17.323 287.504 19.896
202206 18.509 296.311 20.627
202209 19.310 296.808 21.483
202212 21.056 296.797 23.427
202303 42.178 301.836 46.143
202306 17.830 305.109 19.297
202309 17.245 307.789 18.501
202312 19.011 306.746 20.465
202403 18.090 312.332 19.126
202406 24.366 314.175 25.610
202409 23.235 315.301 24.334
202412 32.743 315.605 34.259
202503 21.277 319.799 21.970
202506 25.231 322.561 25.830
202509 27.333 324.800 27.789
202512 27.909 324.054 28.439
202603 22.180 330.213 22.180

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 MXN69.66 mean?
ONEOK (MEX:OKE) has a E10 of MXN69.66 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on ONEOK and its competitors.
Is ONEOK's E10 too high?
ONEOK's current E10 is MXN69.66. Overall, ONEOK has a GF Score™ of 57/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does ONEOK's E10 compare to MPLX and TRGP?
ONEOK's E10 of MXN69.66 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 ONEOK and its competitors. ONEOK's current E10 is MXN69.66. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ONEOK stock overvalued right now?
Based on GuruFocus' analysis, ONEOK (MEX:OKE) is currently considered Modestly Undervalued. The stock's GF Value™ is MXN1,830.48, compared to a current price of MXN1,643.00 — trading 10.2% below its estimated fair value. The current E10 is MXN69.66. ONEOK's overall GF Score™ is 57/100 with 9 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 ONEOK (MEX:OKE), the current E10 is MXN69.66 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 ONEOK (MEX:OKE) Overvalued in 2026?

Based on GuruFocus' analysis, ONEOK stock appears to be undervalued. The current stock price of MXN1,643.00 is trading 10.2% below its estimated GF Value™ of MXN1,830.48. GuruFocus considers ONEOK to be Modestly Undervalued.

Key valuation signals for MEX:OKE:

  • E10: MXN69.66
  • GF Value™: MXN1,830.48 vs. price of MXN1,643.00 (10.2% below fair value)
  • GF Score™: 57/100 with 9 warning signs

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


ONEOK Business Description

Industry EnergyOil & Gas
Address 100 West Fifth Street, Tulsa, OK, USA, 74103
Oneok is a diversified midstream service provider specializing in natural gas gathering, processing, storage, and transportation, as well as natural gas liquids transportation and fractionation. It also operates in the refined product and crude oil segment, connecting producers, refiners, and consumers. Operations are in the midcontinent, Permian, and Rocky Mountain regions.
57GF Score

Get the complete analysis for MEX:OKE

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

MXN1,643.00
Price
MXN1,830.48
GF Value