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Side-by-side financial comparison of MPLX LP (MPLX) and Qnity Electronics, Inc. (Q). Click either name above to swap in a different company.

MPLX LP is the larger business by last-quarter revenue ($2.5B vs $1.3B, roughly 1.9× Qnity Electronics, Inc.). MPLX LP runs the higher net margin — 49.1% vs 16.5%, a 32.5% gap on every dollar of revenue. On growth, Qnity Electronics, Inc. posted the faster year-over-year revenue change (11.1% vs 1.4%). MPLX LP produced more free cash flow last quarter ($782.0M vs $568.0M).

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.

MPLX vs Q — Head-to-Head

Bigger by revenue
MPLX
MPLX
1.9× larger
MPLX
$2.5B
$1.3B
Q
Growing faster (revenue YoY)
Q
Q
+9.7% gap
Q
11.1%
1.4%
MPLX
Higher net margin
MPLX
MPLX
32.5% more per $
MPLX
49.1%
16.5%
Q
More free cash flow
MPLX
MPLX
$214.0M more FCF
MPLX
$782.0M
$568.0M
Q

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
MPLX
MPLX
Q
Q
Revenue
$2.5B
$1.3B
Net Profit
$1.2B
$211.0M
Gross Margin
45.1%
Operating Margin
60.5%
21.3%
Net Margin
49.1%
16.5%
Revenue YoY
1.4%
11.1%
Net Profit YoY
8.5%
6.0%
EPS (diluted)
$1.01

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
MPLX
MPLX
Q
Q
Q4 25
$2.5B
Q3 25
$2.5B
$1.3B
Q2 25
$2.4B
Q1 25
$2.5B
Q4 24
$2.4B
Q3 24
$2.3B
$1.1B
Q2 24
$2.3B
Q1 24
$2.2B
Net Profit
MPLX
MPLX
Q
Q
Q4 25
$1.2B
Q3 25
$1.6B
$211.0M
Q2 25
$1.1B
Q1 25
$1.1B
Q4 24
$1.1B
Q3 24
$1.0B
$199.0M
Q2 24
$1.2B
Q1 24
$1.0B
Gross Margin
MPLX
MPLX
Q
Q
Q4 25
Q3 25
45.1%
Q2 25
Q1 25
Q4 24
Q3 24
47.0%
Q2 24
Q1 24
Operating Margin
MPLX
MPLX
Q
Q
Q4 25
60.5%
Q3 25
73.2%
21.3%
Q2 25
54.9%
Q1 25
55.5%
Q4 24
55.6%
Q3 24
54.4%
21.8%
Q2 24
62.9%
Q1 24
57.6%
Net Margin
MPLX
MPLX
Q
Q
Q4 25
49.1%
Q3 25
63.2%
16.5%
Q2 25
44.9%
Q1 25
46.2%
Q4 24
45.9%
Q3 24
44.6%
17.3%
Q2 24
52.6%
Q1 24
46.7%
EPS (diluted)
MPLX
MPLX
Q
Q
Q4 25
Q3 25
$1.01
Q2 25
Q1 25
Q4 24
Q3 24
$0.95
Q2 24
Q1 24

Balance Sheet & Financial Strength

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

Metric
MPLX
MPLX
Q
Q
Cash + ST InvestmentsLiquidity on hand
$2.1B
$128.0M
Total DebtLower is stronger
$24.2B
$1.7B
Stockholders' EquityBook value
$9.1B
Total Assets
$43.0B
$12.5B
Debt / EquityLower = less leverage
0.19×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPLX
MPLX
Q
Q
Q4 25
$2.1B
Q3 25
$1.8B
$128.0M
Q2 25
$1.4B
Q1 25
$2.5B
Q4 24
$1.5B
Q3 24
$2.4B
Q2 24
$2.5B
Q1 24
$385.0M
Total Debt
MPLX
MPLX
Q
Q
Q4 25
$24.2B
Q3 25
$24.1B
$1.7B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
Q3 24
$19.3B
Q2 24
$19.2B
Q1 24
$18.8B
Stockholders' Equity
MPLX
MPLX
Q
Q
Q4 25
Q3 25
$9.1B
Q2 25
Q1 25
Q4 24
Q3 24
$11.1B
Q2 24
Q1 24
Total Assets
MPLX
MPLX
Q
Q
Q4 25
$43.0B
Q3 25
$43.2B
$12.5B
Q2 25
$37.8B
Q1 25
$39.0B
Q4 24
$37.5B
Q3 24
$38.5B
Q2 24
$38.4B
Q1 24
$36.5B
Debt / Equity
MPLX
MPLX
Q
Q
Q4 25
Q3 25
0.19×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
MPLX
MPLX
Q
Q
Operating Cash FlowLast quarter
$1.5B
$782.0M
Free Cash FlowOCF − Capex
$782.0M
$568.0M
FCF MarginFCF / Revenue
31.9%
44.5%
Capex IntensityCapex / Revenue
29.1%
16.8%
Cash ConversionOCF / Net Profit
1.24×
3.71×
TTM Free Cash FlowTrailing 4 quarters
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPLX
MPLX
Q
Q
Q4 25
$1.5B
Q3 25
$1.4B
$782.0M
Q2 25
$1.7B
Q1 25
$1.2B
Q4 24
$1.7B
Q3 24
$1.4B
Q2 24
$1.6B
Q1 24
$1.3B
Free Cash Flow
MPLX
MPLX
Q
Q
Q4 25
$782.0M
Q3 25
$905.0M
$568.0M
Q2 25
$1.4B
Q1 25
$979.0M
Q4 24
$1.4B
Q3 24
$1.1B
Q2 24
$1.4B
Q1 24
$1.0B
FCF Margin
MPLX
MPLX
Q
Q
Q4 25
31.9%
Q3 25
36.8%
44.5%
Q2 25
60.9%
Q1 25
39.8%
Q4 24
56.6%
Q3 24
48.4%
Q2 24
60.0%
Q1 24
47.7%
Capex Intensity
MPLX
MPLX
Q
Q
Q4 25
29.1%
Q3 25
21.4%
16.8%
Q2 25
12.8%
Q1 25
10.9%
Q4 24
12.7%
Q3 24
11.9%
Q2 24
9.4%
Q1 24
11.7%
Cash Conversion
MPLX
MPLX
Q
Q
Q4 25
1.24×
Q3 25
0.92×
3.71×
Q2 25
1.64×
Q1 25
1.10×
Q4 24
1.51×
Q3 24
1.35×
Q2 24
1.32×
Q1 24
1.27×

Financial Flow Comparison

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

Revenue Breakdown by Segment

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%

Q
Q

Semiconductor Technologies$693.0M54%
Interconnect Solutions$583.0M46%

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