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Side-by-side financial comparison of Kinder Morgan (KMI) and MPLX LP (MPLX). Click either name above to swap in a different company.

Kinder Morgan is the larger business by last-quarter revenue ($4.8B vs $2.5B, roughly 2.0× MPLX LP). MPLX LP runs the higher net margin — 49.1% vs 20.7%, a 28.3% gap on every dollar of revenue. On growth, Kinder Morgan posted the faster year-over-year revenue change (13.8% vs 1.4%). Over the past eight quarters, Kinder Morgan's revenue compounded faster (22.6% CAGR vs 6.2%).

Kinder Morgan, Inc. is one of the largest energy infrastructure companies in North America. The company specializes in owning and controlling oil and gas pipelines and terminals.

MarkWest Energy Partners, L.P., a subsidiary of MPLX LP, is a natural gas gathering, processing and transportation company master limited partnership of the United States. In 1988, the company was founded in Denver, Colorado and grew to be Colorado's 13th largest company. In 2015 it was acquired by MPLX, itself a subsidiary of Marathon Petroleum.

KMI vs MPLX — Head-to-Head

Bigger by revenue
KMI
KMI
2.0× larger
KMI
$4.8B
$2.5B
MPLX
Growing faster (revenue YoY)
KMI
KMI
+12.4% gap
KMI
13.8%
1.4%
MPLX
Higher net margin
MPLX
MPLX
28.3% more per $
MPLX
49.1%
20.7%
KMI
Faster 2-yr revenue CAGR
KMI
KMI
Annualised
KMI
22.6%
6.2%
MPLX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
KMI
KMI
MPLX
MPLX
Revenue
$4.8B
$2.5B
Net Profit
$1.0B
$1.2B
Gross Margin
Operating Margin
29.9%
60.5%
Net Margin
20.7%
49.1%
Revenue YoY
13.8%
1.4%
Net Profit YoY
34.7%
8.5%
EPS (diluted)
$0.44

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
KMI
KMI
MPLX
MPLX
Q1 26
$4.8B
Q4 25
$4.0B
$2.5B
Q3 25
$3.7B
$2.5B
Q2 25
$3.6B
$2.4B
Q1 25
$3.9B
$2.5B
Q4 24
$3.6B
$2.4B
Q3 24
$3.3B
$2.3B
Q2 24
$3.2B
$2.3B
Net Profit
KMI
KMI
MPLX
MPLX
Q1 26
$1.0B
Q4 25
$996.0M
$1.2B
Q3 25
$628.0M
$1.6B
Q2 25
$715.0M
$1.1B
Q1 25
$717.0M
$1.1B
Q4 24
$667.0M
$1.1B
Q3 24
$625.0M
$1.0B
Q2 24
$575.0M
$1.2B
Operating Margin
KMI
KMI
MPLX
MPLX
Q1 26
29.9%
Q4 25
34.0%
60.5%
Q3 25
28.6%
73.2%
Q2 25
31.9%
54.9%
Q1 25
29.6%
55.5%
Q4 24
31.0%
55.6%
Q3 24
30.9%
54.4%
Q2 24
32.3%
62.9%
Net Margin
KMI
KMI
MPLX
MPLX
Q1 26
20.7%
Q4 25
24.8%
49.1%
Q3 25
16.9%
63.2%
Q2 25
19.8%
44.9%
Q1 25
18.6%
46.2%
Q4 24
18.7%
45.9%
Q3 24
19.0%
44.6%
Q2 24
17.9%
52.6%
EPS (diluted)
KMI
KMI
MPLX
MPLX
Q1 26
$0.44
Q4 25
$0.45
Q3 25
$0.28
Q2 25
$0.32
Q1 25
$0.32
Q4 24
$0.30
Q3 24
$0.28
Q2 24
$0.26

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
KMI
KMI
MPLX
MPLX
Cash + ST InvestmentsLiquidity on hand
$72.0M
$2.1B
Total DebtLower is stronger
$31.9B
$24.2B
Stockholders' EquityBook value
$32.6B
Total Assets
$73.1B
$43.0B
Debt / EquityLower = less leverage
0.98×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KMI
KMI
MPLX
MPLX
Q1 26
$72.0M
Q4 25
$63.0M
$2.1B
Q3 25
$71.0M
$1.8B
Q2 25
$82.0M
$1.4B
Q1 25
$80.0M
$2.5B
Q4 24
$88.0M
$1.5B
Q3 24
$108.0M
$2.4B
Q2 24
$98.0M
$2.5B
Total Debt
KMI
KMI
MPLX
MPLX
Q1 26
$31.9B
Q4 25
$24.2B
Q3 25
$24.1B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
Q3 24
$19.3B
Q2 24
$19.2B
Stockholders' Equity
KMI
KMI
MPLX
MPLX
Q1 26
$32.6B
Q4 25
$31.2B
Q3 25
$30.7B
Q2 25
$30.8B
Q1 25
$30.6B
Q4 24
$30.5B
Q3 24
$30.4B
Q2 24
$30.3B
Total Assets
KMI
KMI
MPLX
MPLX
Q1 26
$73.1B
Q4 25
$72.7B
$43.0B
Q3 25
$72.3B
$43.2B
Q2 25
$72.4B
$37.8B
Q1 25
$72.3B
$39.0B
Q4 24
$71.4B
$37.5B
Q3 24
$70.9B
$38.5B
Q2 24
$70.7B
$38.4B
Debt / Equity
KMI
KMI
MPLX
MPLX
Q1 26
0.98×
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
KMI
KMI
MPLX
MPLX
Operating Cash FlowLast quarter
$1.5B
Free Cash FlowOCF − Capex
$782.0M
FCF MarginFCF / Revenue
31.9%
Capex IntensityCapex / Revenue
16.7%
29.1%
Cash ConversionOCF / Net Profit
1.24×
TTM Free Cash FlowTrailing 4 quarters
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KMI
KMI
MPLX
MPLX
Q1 26
Q4 25
$1.7B
$1.5B
Q3 25
$1.4B
$1.4B
Q2 25
$1.6B
$1.7B
Q1 25
$1.2B
$1.2B
Q4 24
$1.5B
$1.7B
Q3 24
$1.2B
$1.4B
Q2 24
$1.7B
$1.6B
Free Cash Flow
KMI
KMI
MPLX
MPLX
Q1 26
Q4 25
$872.0M
$782.0M
Q3 25
$621.0M
$905.0M
Q2 25
$1.0B
$1.4B
Q1 25
$396.0M
$979.0M
Q4 24
$738.0M
$1.4B
Q3 24
$592.0M
$1.1B
Q2 24
$1.1B
$1.4B
FCF Margin
KMI
KMI
MPLX
MPLX
Q1 26
Q4 25
21.7%
31.9%
Q3 25
16.7%
36.8%
Q2 25
27.8%
60.9%
Q1 25
10.3%
39.8%
Q4 24
20.7%
56.6%
Q3 24
18.0%
48.4%
Q2 24
34.4%
60.0%
Capex Intensity
KMI
KMI
MPLX
MPLX
Q1 26
16.7%
Q4 25
20.4%
29.1%
Q3 25
21.3%
21.4%
Q2 25
17.9%
12.8%
Q1 25
19.8%
10.9%
Q4 24
21.6%
12.7%
Q3 24
20.0%
11.9%
Q2 24
18.1%
9.4%
Cash Conversion
KMI
KMI
MPLX
MPLX
Q1 26
Q4 25
1.70×
1.24×
Q3 25
2.25×
0.92×
Q2 25
2.31×
1.64×
Q1 25
1.62×
1.10×
Q4 24
2.26×
1.51×
Q3 24
2.00×
1.35×
Q2 24
2.93×
1.32×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

KMI
KMI

Segment breakdown not available.

MPLX
MPLX

Services$746.0M30%
Other$675.0M28%
Products$492.0M20%
Nonrelated Party$186.0M8%
Related Party$151.0M6%
Crude Oil And Products Logistics$104.0M4%
Service Other$56.0M2%
Natural Gas And NGL Services$41.0M2%

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