WallStSmart

MPLX LP (MPLX)vsWilliams Companies Inc (WMB)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Williams Companies Inc generates 2% more annual revenue ($12.32B vs $12.03B). MPLX leads profitability with a 39.3% profit margin vs 24.9%. WMB appears more attractively valued with a PEG of 2.07. WMB earns a higher WallStSmart Score of 69/100 (B-).

MPLX

Buy

60

out of 100

Grade: C

Growth: 4.7Profit: 9.0Value: 4.0Quality: 3.8
Piotroski: 3/9

WMB

Strong Buy

69

out of 100

Grade: B-

Growth: 6.7Profit: 8.0Value: 5.0Quality: 3.0
Piotroski: 5/9Altman Z: 0.34
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

MPLXSignificantly Overvalued (-24.5%)

Margin of Safety

-24.5%

Fair Value

$47.07

Current Price

$59.16

$12.09 premium

UndervaluedFair: $47.07Overvalued

Intrinsic value data unavailable for WMB.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

MPLX5 strengths · Avg: 9.4/10
Return on EquityProfitability
33.8%10/10

Every $100 of equity generates 34 in profit

Profit MarginProfitability
39.3%10/10

Keeps 39 of every $100 in revenue as profit

Operating MarginProfitability
38.3%10/10

Strong operational efficiency at 38.3%

Market CapQuality
$60.51B9/10

Large-cap with strong market position

P/E RatioValuation
13.0x8/10

Attractively priced relative to earnings

WMB5 strengths · Avg: 9.4/10
Operating MarginProfitability
39.5%10/10

Strong operational efficiency at 39.5%

EPS GrowthGrowth
51.2%10/10

Earnings expanding 51.2% YoY

Market CapQuality
$89.11B9/10

Large-cap with strong market position

Return on EquityProfitability
23.3%9/10

Every $100 of equity generates 23 in profit

Profit MarginProfitability
24.9%9/10

Keeps 25 of every $100 in revenue as profit

Areas to Watch

MPLX4 concerns · Avg: 3.0/10
EPS GrowthGrowth
3.2%4/10

3.2% earnings growth

Debt/EquityHealth
1.853/10

Elevated debt levels

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

PEG RatioValuation
3.092/10

Expensive relative to growth rate

WMB4 concerns · Avg: 3.0/10
PEG RatioValuation
2.074/10

Expensive relative to growth rate

P/E RatioValuation
29.0x4/10

Moderate valuation

Free Cash FlowQuality
$-458.00M2/10

Negative free cash flow — burning cash

Altman Z-ScoreHealth
0.342/10

Distress zone — elevated risk

Comparative Analysis Report

WallStSmart Research

Bull Case : MPLX

The strongest argument for MPLX centers on Return on Equity, Profit Margin, Operating Margin. Profitability is solid with margins at 39.3% and operating margin at 38.3%. Revenue growth of 10.6% demonstrates continued momentum.

Bull Case : WMB

The strongest argument for WMB centers on Operating Margin, EPS Growth, Market Cap. Profitability is solid with margins at 24.9% and operating margin at 39.5%.

Bear Case : MPLX

The primary concerns for MPLX are EPS Growth, Debt/Equity, Piotroski F-Score. Debt-to-equity of 1.85 is elevated, increasing financial risk.

Bear Case : WMB

The primary concerns for WMB are PEG Ratio, P/E Ratio, Free Cash Flow. Debt-to-equity of 2.33 is elevated, increasing financial risk.

Key Dynamics to Monitor

WMB carries more volatility with a beta of 0.62 — expect wider price swings.

MPLX is growing revenue faster at 10.6% — sustainability is the question.

MPLX generates stronger free cash flow (877M), providing more financial flexibility.

Monitor OIL & GAS MIDSTREAM industry trends, competitive dynamics, and regulatory changes.

Bottom Line

WMB scores higher overall (69/100 vs 60/100), backed by strong 24.9% margins. Both earn "Strong Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

MPLX LP

ENERGY · OIL & GAS MIDSTREAM · USA

MPLX LP owns and operates energy infrastructure and midstream logistics assets primarily in the United States.

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Williams Companies Inc

ENERGY · OIL & GAS MIDSTREAM · USA

The Williams Companies, Inc., is an American energy company based in Tulsa, Oklahoma. Its core business is natural gas processing and transportation, with additional petroleum and electricity generation assets.

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