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STOCK COMPARISON

Marathon Petroleum vs Williams Companies: Fair Value & Quality

Both stocks run through our valuation models. Here is how Marathon Petroleum (MPC) and Williams Companies (WMB) compare, as of Sep 4, 2026.

As of Sep 4, 2026, Fair Value Calculator sees Marathon Petroleum as the less overvalued of the two: Marathon Petroleum trades at $388 versus a fair value of $133 (-66%), while Williams Companies trades at $74.05 versus $11.73 (-84%).
Marathon Petroleum
MPC · USD · Energy
-66%
upside to fair value
overvalued
Price$388
Fair Value$133
Quality61/100
Williams Companies
WMB · USD · Energy
-84%
upside to fair value
overvalued
Price$74.05
Fair Value$11.73
Quality51/100
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Head-to-head numbers

Green value = the better side for that row (for valuation multiples: lower = cheaper).

Marathon PetroleumWilliams Companies
Valuation
18.7×P/E (TTM)32.9×
0.61×P/S (TTM)7.41×
4.78×P/B7.01×
10.7×EV/EBITDA17.2×
1.41×PEG2.30×
−65.6%Fair value upside−84.2%
1.0%Dividend yield2.7%
$3.91Dividend per share$2.03
Profitability
4%Operating margin34%
—EBIT margin trend (5Y)1.29×
27%Return on equity20%
5%Return on assets5%
Growth
9%Revenue growth (YoY)9%
-9.2%Avg. growth/yr (3Y)2.9%
13.7%Avg. growth/yr (5Y)9.1%
+10.1%Value creation/yr+15.2%
Balance & size
4.1×Interest coverage (EBIT/interest)3.1×
1.76×Debt / equity2.13×
$83BMarket cap$90B
weakGrowth qualityexpensive

Marathon Petroleum leads: 9 to 5 metric wins.

Dash = not meaningfully computable, for example with negative equity.

Quality in detail

The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.

Marathon Petroleumof which business quality 57 · market factors 93 Williams Companiesof which business quality 47 · market factors 68
ProfitabilityMargins and returns on capital today
53
45
Quality GrowthAre margins and returns improving?
35
43
CashflowEarnings quality: real cash, not paper profit
50
61
Fin. StrengthBalance sheet, leverage, solvency risk
33
11
InvestmentDisciplined investing over empire-building
99
50
Low VolatilityCalm price path (market factor)
78
86
MomentumPrice trend over the last 3–12 months (market factor)
100
53
52W MomentumDistance to the 52-week high (market factor)
100
74
Net IssuanceBuybacks instead of dilution
100
83

What the models say

How far the median fair value (base case) per model family sits from the current price, in percent. The amount in the currency of the trading venue is shown underneath.

above the price, more than 15% above close to the price, 85% to 115% of the price below the price, more than 15% below

Model familyMarathon PetroleumPrice $388Williams CompaniesPrice $74.05
DCF Models-69%below the price$120-94%below the price$4.09
Earnings-Based-78%below the price$84.34-87%below the price$9.98
Dividend Discount-86%below the price$55.80n/a
Multiples-65%below the price$136-81%below the price$13.70
Asset-Based-90%below the price$39.74-91%below the price$7.02
Growth DCF-58%below the price$162n/a
Economic Profit-72%below the price$108-81%below the price$14.21
Growth Earnings-58%below the price$161-65%below the price$25.93
Minimum-90%below the price$39.74-94%below the price$4.09
Maximum-58%below the price$162-65%below the price$25.93
Median-71%below the price$114-84%below the price$11.84
Geometric mean-75%below the price$98.02-86%below the price$10.63

Minimum, maximum, median and geometric mean refer to the family values in this table. Geometric because deviations are ratios: half the price and twice the price average to 100%, not 125%.

Marathon Petroleum: 25 of 25 models see the stock below the current price.

Williams Companies: 15 of 15 models see the stock below the current price.

Scenario ranges

From our cautious bear case to the optimistic bull case. The white tick is the current price: left of fair value means room to run.

Marathon Petroleum
Bear $74.68Fair Value $133Bull $209
$388 = current price (white tick)
Williams Companies
Bear $6.16Fair Value $11.73Bull $17.43
$74.05 = current price (white tick)

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Ranked within their sector

Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.

Marathon Petroleum · Energy

Quality score61 · Top 25%
Fair value upside-66% · bottom 25%

Williams Companies · Energy

Quality score51 · above median
Fair value upside-84% · bottom 25%

Bottom line

As of Sep 4, 2026, Fair Value Calculator sees Marathon Petroleum as the less overvalued of the two: Marathon Petroleum trades at $388 versus a fair value of $133 (-66%), while Williams Companies trades at $74.05 versus $11.73 (-84%).

Marathon Petroleum has the higher quality score (61/100).

See the full analysis →
Marathon Petroleum · Williams Companies

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A model-based valuation snapshot from 26 models. Values change with price and fundamentals; the date shown above applies.