Which Is a Better Investment, Imperial Oil Ltd (USA) or Phillips 66 Stock?

By Jenna Brashear
September 07, 2026
Large versus logo comparing two stocks in the same industry
Featured Tickers:

Sifting through countless of stocks in the Oil, Gas & Consumable Fuels industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Phillips 66 or Imperial Oil Limited because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Phillips 66 and Imperial Oil Limited compare based on key financial metrics to determine which better meets your investment needs.

About Phillips 66 and Imperial Oil Limited

Phillips 66 operates as an integrated downstream energy provider in the United States, the United Kingdom, Germany, and internationally. It operates through five segments: Midstream, Chemicals, Refining, Marketing and Specialties (M&S), and Renewable Fuels. The Midstream segment provides crude oil and refined petroleum product transportation, terminaling, and storage services, as well as natural gas and natural gas liquids (NGL) gathering, processing, transportation, fractionation, storage and marketing services. It also exports liquefied petroleum gas. The Chemicals segment produces and markets ethylene and other olefin products; aromatics and styrenics products, such as benzene, cyclohexane, styrene, and polystyrene; various specialty chemical products, including organosulfur chemicals, solvents, catalysts, and chemicals used in drilling and mining; and petrochemicals and plastics. The Refining segment refines crude oil and other feedstocks into petroleum products, such as gasolines and distillates, including aviation fuels. The M&S segment purchases for resale and markets refined products, including gasolines, distillates, and aviation fuels. This segment also manufactures and markets specialty products, such as automotive, commercial, industrial, and specialty lubricants, as well as base oils. The Renewable Fuels segment processes renewable feedstocks into renewable products, as well as supplies sustainable aviation fuel. This segment also procures renewable feedstocks, manages certain regulatory credits, and markets renewable diesel, renewable jet fuel, and other renewable fuels. The company markets its products under the Phillips 66, Conoco and 76, JET, Kendall, Red Line, and other private label brands. Phillips 66 was founded in 1875 and is headquartered in Houston, Texas.

Imperial Oil Limited engages in exploration, production, and sale of crude oil and natural gas in Canada. The company operates in three segments: Upstream, Downstream and Chemical segments. The Upstream segment explores and produces crude oil, natural gas, synthetic crude oil, and bitumen. The Downstream segment transports and refines crude oil; blends refined products; and distributes and markets refined products. This segment also transports crude oil production and third-party crude oil to refineries by contracted and common carrier pipelines; owns and operates refineries; maintains a distribution system to move petroleum products to market by pipeline, tanker, rail, and road transport; owns and operates fuel terminals, natural gas liquids, and products pipelines in Alberta, Manitoba, and Ontario; markets petroleum products under the Esso and Mobil brands; and sells petroleum products, including fuel, asphalt, and lubricants to industrial and transportation customers, independent marketers, resellers, and other refiners, as well as the agriculture, residential heating, and commercial markets through branded fuel and lubricant resellers. The Chemical segment manufactures and markets aliphatic solvents, plasticizer intermediates, and polyethylene resins; and markets refinery grade propylene. It also provides petrochemicals. The company was incorporated in 1880 and is headquartered in Calgary, Canada. Imperial Oil Limited operates as a subsidiary of Exxon Mobil Corporation.

Latest Oil, Gas & Consumable Fuels and Phillips 66, Imperial Oil Limited Stock News

As of September 4, 2026, Phillips 66 had a $101.8 billion market capitalization, compared to the Oil, Gas & Consumable Fuels median of $2.8 million. Phillips 66’s stock is up 97.7% in 2026, up 4.5% in the previous five trading days and up 93.87% in the past year.

Currently, Phillips 66’s price-earnings ratio is 14.6. Phillips 66’s trailing 12-month revenue is $152.2 billion with a 4.7% net profit margin. Year-over-year quarterly sales growth most recently was 53.1%. Analysts expect adjusted earnings to reach $25.666 per share for the current fiscal year. Phillips 66 currently has a 2.0% dividend yield.

As of September 4, 2026, Imperial Oil Limited had a $62.2 billion market cap, putting it in the 94th percentile of all stocks. Imperial Oil Limited’s stock is up 49% in 2026, down 1.4% in the previous five trading days and up 47.05% in the past year.

Currently, Imperial Oil Limited’s price-earnings ratio is 21.6. Imperial Oil Limited’s trailing 12-month revenue is $36.4 billion with a 8.1% net profit margin. Year-over-year quarterly sales growth most recently was 36.9%. Analysts expect adjusted earnings to reach $10.493 per share for the current fiscal year. Imperial Oil Limited currently has a 2.7% dividend yield.

How We Compare Phillips 66 and Imperial Oil Limited Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Phillips 66 and Imperial Oil Limited’s stock grades to see how they measure up against one another.

Learn more about A+ Investor here!

Sign Up to Receive a Free Special Report Showing How A+ Grades Can Help You Make Smarter Investment Decisions

Phillips 66 and Imperial Oil Limited Stock Value Grades

Company Ticker Value
Phillips 66 PSX B
Imperial Oil Limited IMO B

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Phillips 66 has a Value Score of 67, which is Value. Imperial Oil Limited has a Value Score of 65, which is Value.

The Value Stock Winner: It’s a Tie!

Looking at the Value Grade breakdown above, both Phillips 66 and Imperial Oil Limited have a Value Grade of B. For investors who focus solely on a company’s valuation, you will need to conduct further research into both of these companies’ other metrics to see if they could be good additions to your portfolio. It’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Phillips 66 and Imperial Oil Limited Growth Grades

Company Ticker Growth
Phillips 66 PSX C
Imperial Oil Limited IMO C

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Phillips 66 has a Growth Score of 48, which is Average. Imperial Oil Limited has a Growth Score of 48, which is Average.

The Growth Stock Winner: No Clear Winner

Neither Phillips 66 or Imperial Oil Limited has a high enough Growth Grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Phillips 66 or Imperial Oil Limited is the better investment when it comes to sustainable growth.

Phillips 66 and Imperial Oil Limited’s Estimate Revisions Grades

Company Ticker Earnings Estimate
Phillips 66 PSX B
Imperial Oil Limited IMO C

Earnings estimate revisions scores consider the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, positive surprises beget further positive surprises‐or at least continued sales growth (the exact opposite is generally true, too).

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

Phillips 66 has a Earnings Estimate Score of 78, which is Positive. Imperial Oil Limited has a Earnings Estimate Score of 51, which is Neutral.

The Earnings Estimate Revisions Grade Winner: Phillips 66

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, Phillips 66 has a better Earnings Estimate Revisions Grade than Imperial Oil Limited. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, Phillips 66 could be a good stock to invest in. However, it’s important to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Don’t Forget Your Free Special Report on How A+ Grades Can Help You Make Investment Decisions

Other Phillips 66 and Imperial Oil Limited Grades

In addition to Growth, Value and Estimate Revisions, A+ Investor also provides grades for Momentum and Quality.

AAII Platinum Banner

Momentum grades help uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming.

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Phillips 66 and Imperial Oil Limited pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Phillips 66 or Imperial Oil Limited Stock?

Overall, Phillips 66 stock has a Value Score of 67, Growth Score of 48 and Estimate Revisions Score of 78.

Imperial Oil Limited stock has a Value Score of 65, Growth Score of 48 and Estimate Revisions Score of 51.

Comparing Phillips 66 and Imperial Oil Limited’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

Learn More About A+ Investor

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.



Find New Stock Opportunities With Included With AAII Platinum
Est Rev: Up 5% Screen: 21.7% Compared to S&P 500
at only 6.9%

Since Inception. Data as of 12/31/2024.




Try AAII Platinum and get full access to
769.3% Stock Superstars Portfolio Total Return Since Inception
Compare to:
710.3% iShare DOW Jones
U.S. Index ETF (IYY)

SSR Group 3 O'Shaughnessy portfolio has a 411.2% gain since inception performance compared to IYY at only 119.1%% Performance as of 11/29/24.

Get your free copy of our special report analyzing the tech stocks most likely to outperform the market.

Download the FREE Report Here:

BECOME A MEMBER FOR ONLY $2

Get access to powerful investment discovery tools and a wealth of investment education to help you achieve your financial goals.