KMI vs MPLX vs SO Stock Comparison

Kinder Morgan, Mplx and Southern Prices as of Oct 27, 2026 Peers: Industry group
KMI Kinder Morgan, Inc.
$33.87 +10.2% 1M +29.5% 1Y
Market cap
$75.45B
P/E
20.9x
Revenue (TTM)
$18.34B
Div. yield
3.50%
Oil and Gas Pipelines Energy
3 wins
MPLX Mplx Lp
$58.09 +2.3% 1M +14.3% 1Y
Market cap
$58.90B
P/E
12.5x
Revenue (TTM)
$13.22B
Div. yield
7.43%
Oil and Gas Pipelines Energy
8 wins
SO Southern Co
$92.64 +11.8% 1M -2.9% 1Y
Market cap
$106.57B
P/E
22.6x
Revenue (TTM)
$30.18B
Div. yield
3.24%
Regulated Electric Utilities Utilities
1 win

Head to Head

12 decided of 12

Mplx leads on 8 of the 12 questions below (Mplx 8, Kinder Morgan 3, Southern 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionKMIMPLXSOLeader
Larger companyMarket capitalisation $75.45B $58.90B $106.57B SO
Cheaper on earningsLower P/E, profitable companies only 20.9x 12.5x 22.6x MPLX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 20.8x 14.2x 19.1x MPLX
Faster revenue growthRevenue growth, trailing twelve months +11.7% +8.7% +6.4% KMI
More profitableNet margin, trailing twelve months 19.6% 35.8% 15.4% MPLX
Better return on capitalReturn on invested capital 6.3% 14.6% 5.1% MPLX
Less leveragedLower net debt / EBITDA 4.1x 3.4x 5.3x MPLX
Higher dividend yieldTrailing dividend yield 3.50% 7.43% 3.24% MPLX
Better 1-year returnPrice return, last 12 months +29.5% +14.3% -2.9% KMI
Better 5-year returnAnnualised price return, 5 years +14.3%/yr +13.8%/yr +8.1%/yr KMI
Less volatileAnnualised volatility, 1 year 21.2% 17.1% 17.9% MPLX
Higher overall scoreMean of the five percentile scores vs peers 45/100 59/100 43/100 MPLX

Percentile Scorecard

KMIMPLXSO

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisKMIMPLXSO
Valuation 35 #23 of 35 41 #21 of 35 35 #44 of 67
Growth 67 #12 of 34 27 #25 of 34 53 #31 of 65
Profitability 52 #17 of 34 94 #3 of 34 76 #16 of 63
Financial Health 47 #19 of 35 62 #14 of 35 34 #42 of 63
Shareholder Returns 23 #24 of 31 70 #10 of 31 17 #56 of 67
Overall 45 59 43
  • KMI ranked among 35 companies in Oil and Gas Midstream
  • MPLX ranked among 35 companies in Oil and Gas Midstream
  • SO ranked among 67 companies in Regulated Utilities

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodKMIMPLXSOSPY
1 month +10.2%+2.3%+11.8% -0.2%
3 months +7.1%-1.9%-4.3% +3.9%
6 months +6.5%+5.5%-1.9% +8.2%
Year to date +23.2%+8.8%+6.2% +12.9%
1 year +29.5%+14.3%-2.9% +12.3%
3 years +106.9%+62.8%+39.2% +87.4%
3 years, per year +27.4%+17.6%+11.7% +23.3%
5 years +95.2%+90.5%+47.7% +67.9%
5 years, per year +14.3%+13.8%+8.1% +10.9%
10 years +61.5%+72.4%+82.5% +261.1%
10 years, per year +4.9%+5.6%+6.2% +13.7%

Risk

MeasureKMIMPLXSOSPY
Volatility, 1Y 21.2%17.1%17.9% 12.7%
Downside volatility, 1Y 20.5%17.9%17.5% 12.7%
Beta vs S&P 500, 1Y -0.22-0.05-0.23 1.00
Return / volatility, 1Y 1.390.84-0.16 0.97
Max drawdown, 5Y -20.4%-20.1%-23.3% -25.4%
From 52-week high -1.7%-3.9%-6.5% -1.2%
52-week high $34.44$60.43$99.11 $779.14
52-week low $25.84$50.29$82.35 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleKMIMPLXSO
P/E now vs peer median 20.9xmedian 20.9x 12.5xmedian 20.9x 22.6xmedian 20.9x
P/S now vs peer median 4.1xmedian 2.7x 4.5xmedian 2.7x 3.5xmedian 2.9x
EV/EBITDA now vs peer median 13.8xmedian 11.0x 11.4xmedian 11.0x 13.1xmedian 13.2x
P/FCF now vs peer median 24.5xmedian 16.5x 17.7xmedian 16.5x -32.6xmedian 36.9x
P/B now vs peer median 2.3xmedian 2.6x 4.1xmedian 2.6x 2.5xmedian 1.7x
PEG now vs peer median 1.55median 1.95 2.39median 1.95 0.71median 2.31

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsKMIMPLXSO
Revenue $18.34B $13.22B $30.18B
Gross profit $12.18B $11.61B $25.14B
Operating income $5.31B $5.88B $7.31B
Net income $3.71B $4.77B $4.66B
Free cash flow $3.08B $3.34B -$3.27B
EPS (diluted) $1.62 $4.66 $4.08
Cash & equivalents $918.00M $1.03B $2.98B
Total debt $33.07B $26.01B $295.00B
Shares (diluted) 2.23B 1.02B 1.14B
Enterprise value $75.54B $52.46B $97.62B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricKMIMPLXSO
P/E 20.9x 12.5x 22.6x
P/FCF 24.5x 17.7x -32.6x
P/Operating cash flow 11.2x 9.9x 10.0x
P/S 4.1x 4.5x 3.5x
P/B 2.3x 4.1x 2.5x
P/Tangible book 2.4x 4.6x 2.5x
EV/EBITDA 13.8x 11.4x 13.1x
EV/EBIT 20.2x 14.3x 24.5x
EV/Revenue 5.9x 6.3x 5.9x
EV/FCF 34.9x 25.1x -54.8x
EV/Operating cash flow 16.0x 14.0x 16.8x
PEG (3Y EPS CAGR) 1.55 2.39 0.71

Growth

14 metrics
MetricKMIMPLXSO
Revenue growth (1Y) 11.7% 8.7% 6.4%
Revenue CAGR (3Y) 4.9% 4.9% 3.0%
Gross profit growth (1Y) 9.8% 9.5% 5.3%
Gross profit CAGR (3Y) 5.7% 2.5% 1.6%
Operating income growth (1Y) 18.9% 11.4% 1.5%
Operating income CAGR (3Y) 7.6% 4.8% 14.7%
Net income growth (1Y) 30.8% 9.6% 8.7%
Net income CAGR (3Y) 13.1% 4.7% 16.2%
EPS growth (1Y) 31.9% 10.6% 5.6%
EPS CAGR (3Y) 13.5% 5.2% 31.9%
Operating cash flow growth (1Y) 17.4% -1.6% 15.5%
Operating cash flow CAGR (3Y) 6.5% 5.6% 23.7%
Free cash flow growth (1Y) 11.8% -32.1% -152.2%
Free cash flow CAGR (3Y) -3.3% -6.8% -3.1%

Profitability

14 metrics
MetricKMIMPLXSO
Gross margin 66.4% 87.8% 83.3%
EBITDA margin 42.6% 55.4% 45.2%
Operating margin 29.0% 44.4% 24.2%
Pretax margin 25.8% 36.1% 17.4%
Net margin 19.6% 35.8% 15.4%
FCF margin 16.8% 25.2% -10.8%
Operating cash flow margin 36.7% 45.2% 35.3%
Return on equity 11.3% 33.4% 9.2%
Return on assets 5.0% 11.1% 2.9%
Return on invested capital 6.3% 14.6% 5.1%
Return on capital employed 7.6% 14.8% 5.1%
Asset turnover 0.2x 0.3x 0.2x
Cash conversion (OCF / net income) 1.8x 1.3x 2.3x
Stock comp / revenue – – –

Financial Health

11 metrics
MetricKMIMPLXSO
Debt / assets 43.9% 60.5% 46.6%
Debt / equity 1.0x 1.8x 1.8x
Net debt / EBITDA 4.1x 3.4x 5.3x
Debt / FCF 10.7x 7.8x -23.1x
Liabilities / assets 56.5% 66.8% 73.9%
Equity / assets 43.5% 33.2% 26.1%
Interest coverage – 5.3x 2.3x
Current ratio 0.7x 0.9x 0.8x
Quick ratio 0.2x 0.8x 0.4x
Cash ratio 0.2x 0.3x 0.2x
Altman Z-score 1.33 – –

Shareholder Returns

7 metrics
MetricKMIMPLXSO
Dividend yield 3.5% 7.4% 3.2%
Net buyback yield – 0.5% –
Shareholder yield 3.5% 7.9% 3.2%
Payout ratio (earnings) 71.2% 89.3% 66.6%
Payout ratio (FCF) 85.6% 127.5% -94.8%
Dividend growth (1Y) 1.8% 12.3% 4.7%
Dividend CAGR (3Y) 1.5% 11.8% 1.2%

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusKMIMPLXSO
Forward P/E 20.8xFY2026 14.2xFY2026 19.1xFY2026
EPS, next fiscal year $1.63FY2026 $4.10FY2026 $4.84FY2026
EPS growth, next FY +25.4%FY2026 -14.9%FY2026 +12.6%FY2026
EPS growth, the year after -11.0% +13.7% -3.1%
Revenue, next fiscal year $17.89BFY2026 $13.68BFY2026 $31.54BFY2026
Revenue growth, next FY +5.6%FY2026 +5.2%FY2026 +6.7%FY2026
Revenue growth, the year after +0.4% -4.0% +8.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersKMIMPLXSO
Held by institutions 69.3% 18.8% 72.5%
Institutions holding 1,811 625 2,363
Change in shares held, QoQ +3.3% -3.3% +5.7%
Institutions buying 898 301 1,248
Institutions selling 647 144 724
Buyers to sellers 1.39 2.09 1.72

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

KMIMPLXSO
KMI 1.00 0.45 0.37
MPLX 0.45 1.00 0.20
SO 0.37 0.20 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, KMI, MPLX and SO?

Southern (SO) is the largest by market capitalisation: Kinder Morgan (KMI) $75.45B, Mplx (MPLX) $58.90B, Southern (SO) $106.57B.

Which stock is cheaper, KMI, MPLX and SO?

Mplx (MPLX) trades on the lowest price-to-earnings ratio (Kinder Morgan (KMI) 20.9x, Mplx (MPLX) 12.5x, Southern (SO) 22.6x). On next year's consensus earnings, Mplx (MPLX) is cheapest (Kinder Morgan (KMI) 20.8x, Mplx (MPLX) 14.2x, Southern (SO) 19.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Kinder Morgan (KMI) grew revenue fastest over the trailing twelve months: Kinder Morgan (KMI) +11.7%, Mplx (MPLX) +8.7%, Southern (SO) +6.4%.

Which company is more profitable?

Mplx (MPLX) has the highest net margin (Kinder Morgan (KMI) 19.6%, Mplx (MPLX) 35.8%, Southern (SO) 15.4%). On return on invested capital, Mplx (MPLX) leads (Kinder Morgan (KMI) 6.3%, Mplx (MPLX) 14.6%, Southern (SO) 5.1%).

Which stock has performed better?

Over the past year Kinder Morgan (KMI) returned the most: Kinder Morgan (KMI) +29.5%, Mplx (MPLX) +14.3%, Southern (SO) -2.9%. Over five years, Kinder Morgan (KMI) compounded fastest (Kinder Morgan (KMI) +14.3%/yr, Mplx (MPLX) +13.8%/yr, Southern (SO) +8.1%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Mplx (MPLX) has the highest dividend yield: Kinder Morgan (KMI) 3.50%, Mplx (MPLX) 7.43%, Southern (SO) 3.24%.

Which stock is riskier?

By one-year price volatility, Mplx (MPLX) has been the steadiest (Kinder Morgan (KMI) 21.2%, Mplx (MPLX) 17.1%, Southern (SO) 17.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, KMI, MPLX and SO?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Mplx (MPLX) leads on 8. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.