Which Is a Better Investment, MPLX LP or Williams Companies Inc Stock?

By Jenna Brashear
September 03, 2026
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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 MPLX LP, The Williams Companies or Inc. 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 MPLX LP, The Williams Companies and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About MPLX LP, The Williams Companies and Inc.

MPLX LP owns and operates midstream energy infrastructure and logistics assets primarily in the United States. It operates in two segments, Crude Oil and Products Logistics; and Natural Gas and NGL Services. The company is involved in the gathering, processing, and transportation of natural gas; gathering, transportation, fractionation, storage, and marketing of natural gas liquids; gathering, storage, transportation, and distribution of crude oil and refined products, as well as other hydrocarbon-based products and renewables; and sale of residue gas and condensate. It also engages in inland marine businesses, comprising fleet of boats and barges transport light products, heavy oils, crude oil, renewable fuels, chemicals, and feedstocks in the Mid-Continent and Gulf Coast regions, as well as a marine repair facility located on the Ohio River; and distribution of fuel, as well as operates refining logistics, terminals, rail facilities, and storage caverns. In addition, it operates terminal facilities for the receipt, storage, blending, additization, handling, and redelivery of refined petroleum products through the pipeline, rail, marine, and truck transportation. MPLX GP LLC acts as the general partner of MPLX LP. The company was incorporated in 2012 and is headquartered in Findlay, Ohio. MPLX LP operates as a subsidiary of Marathon Petroleum Corporation.

The Williams Companies, Inc., together with its subsidiaries, operates as an energy infrastructure company primarily in the United States. It operates through Transmission, Power & Gulf, Northeast G&P, West, and Gas & NGL Marketing Services segments. The Transmission, Power & Gulf segment comprises Transco, NWP, and Mountain West interstate natural gas pipelines, and their related natural gas storage facilities, as well as natural gas gathering and processing; and crude oil production handling and transportation assets in the Gulf Coast region. The Northeast G&P segment engages in the midstream gathering, processing, and fractionation activities in the Marcellus Shale region primarily in Pennsylvania and New York, and the Utica Shale region of eastern Ohio. The West segment consists of gas gathering, processing, and treating operations in the Rocky Mountain region of Colorado and Wyoming, the Barnett Shale region of north-central Texas, the Eagle Ford Shale region of South Texas, the Haynesville Shale region of northwest Louisiana, the Mid-Continent region that includes the Anadarko and Permian basins, and the DJ Basin of Colorado; and operates natural gas liquid (NGL) fractionation and storage assets in central Kansas near Conway. The Gas & NGL Marketing Services segment provides wholesale marketing, trading, storage, and transportation of natural gas for natural gas utilities, municipalities, power generators, and producers; asset management services; and transports and markets NGLs. The company owns and operates approximately 32,000 miles of pipelines. The Williams Companies, Inc. was founded in 1908 and is headquartered in Tulsa, Oklahoma.

Latest Oil, Gas & Consumable Fuels and MPLX LP, The Williams Companies, Inc. Stock News

As of September 2, 2026, MPLX LP had a $59.8 billion market capitalization, compared to the Oil, Gas & Consumable Fuels median of $2.7 million. MPLX LP’s stock is up 10.9% in 2026, down 0.6% in the previous five trading days and up 15.74% in the past year.

Currently, MPLX LP’s price-earnings ratio is 12.7. MPLX LP’s trailing 12-month revenue is $12.0 billion with a 39.3% net profit margin. Year-over-year quarterly sales growth most recently was 10.6%. Analysts expect adjusted earnings to reach $4.420 per share for the current fiscal year. MPLX LP currently has a 7.3% dividend yield.

As of September 2, 2026, The Williams Companies, Inc. had a $91.9 billion market cap, putting it in the 96th percentile of all stocks. The Williams Companies, Inc.’s stock is up 24.9% in 2026, up 1.2% in the previous five trading days and up 30.99% in the past year.

Currently, The Williams Companies, Inc.’s price-earnings ratio is 29.9. The Williams Companies, Inc.’s trailing 12-month revenue is $12.3 billion with a 24.9% net profit margin. Year-over-year quarterly sales growth most recently was 7.8%. Analysts expect adjusted earnings to reach $2.460 per share for the current fiscal year. The Williams Companies, Inc. currently has a 2.8% dividend yield.

How We Compare MPLX LP, The Williams Companies and Inc. 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 MPLX LP, The Williams Companies and Inc.’s stock grades to see how they measure up against one another.

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MPLX LP, The Williams Companies and Inc. Growth Grades

Company Ticker Growth
MPLX LP MPLX A
The Williams Companies, Inc. WMB A

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.

MPLX LP has a Growth Score of 95, which is Very Strong. The Williams Companies, Inc. has a Growth Score of 95, which is Very Strong.

The Growth Grade Winner: It’s a Tie!

Looking at the Growth Grade breakdown above, both MPLX LP, The Williams Companies and Inc. have a grade of A. For investors who focus solely on a company’s upward growth, further research should be conducted into both companies’ other financial metrics before deciding whether to invest.

MPLX LP, The Williams Companies and Inc.’s Momentum Grades

Company Ticker Momentum
MPLX LP MPLX C
The Williams Companies, Inc. WMB B

Momentum grades help to 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. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

MPLX LP has a Momentum Score of 54, which is Average. The Williams Companies, Inc. has a Momentum Score of 63, which is Strong.

The Momentum Grade Winner: The Williams Companies, Inc.

As you can clearly see from the Momentum Grade breakdown above, The Williams Companies, Inc. is considered to have stronger momentum compared to MPLX LP. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, The Williams Companies, Inc. could be a good stock to invest in. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

MPLX LP, The Williams Companies and Inc.’s Estimate Revisions Grades

Company Ticker Earnings Estimate
MPLX LP MPLX D
The Williams Companies, Inc. WMB 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.

MPLX LP has a Earnings Estimate Score of 33, which is Negative. The Williams Companies, Inc. has a Earnings Estimate Score of 54, which is Neutral.

The Earnings Estimate Revisions Stock Winner: No Clear Winner

Neither MPLX LP, The Williams Companies or Inc. has an Earnings Estimate Revisions Grade that could be considered a “winner.” Investors 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 MPLX LP, The Williams Companies or Inc. is the better investment when it comes to estimate revisions.

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Other MPLX LP, The Williams Companies and Inc. Grades

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

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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 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 MPLX LP, The Williams Companies and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, MPLX LP, The Williams Companies or Inc. Stock?

Overall, MPLX LP stock has a Growth Score of 95, Momentum Score of 54 and Estimate Revisions Score of 33.

The Williams Companies, Inc. stock has a Growth Score of 95, Momentum Score of 63 and Estimate Revisions Score of 54.

Comparing MPLX LP, The Williams Companies and Inc.’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.



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