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Side-by-side financial comparison of MPLX LP (MPLX) and Seagate Technology (STX). Click either name above to swap in a different company.

Seagate Technology is the larger business by last-quarter revenue ($3.1B vs $2.5B, roughly 1.3× MPLX LP). MPLX LP runs the higher net margin — 49.1% vs 24.0%, a 25.0% gap on every dollar of revenue. On growth, Seagate Technology posted the faster year-over-year revenue change (44.1% vs 1.4%). Seagate Technology produced more free cash flow last quarter ($953.0M vs $782.0M). Over the past eight quarters, Seagate Technology's revenue compounded faster (28.4% CAGR vs 6.2%).

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.

Seagate Technology Holdings plc is an American data storage company. It was incorporated in 1978 as Shugart Technology and commenced business in 1979. Since 2010, the company has been incorporated in Dublin, Ireland, with operational headquarters in Fremont, California, United States.

MPLX vs STX — Head-to-Head

Bigger by revenue
STX
STX
1.3× larger
STX
$3.1B
$2.5B
MPLX
Growing faster (revenue YoY)
STX
STX
+42.7% gap
STX
44.1%
1.4%
MPLX
Higher net margin
MPLX
MPLX
25.0% more per $
MPLX
49.1%
24.0%
STX
More free cash flow
STX
STX
$171.0M more FCF
STX
$953.0M
$782.0M
MPLX
Faster 2-yr revenue CAGR
STX
STX
Annualised
STX
28.4%
6.2%
MPLX

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
MPLX
MPLX
STX
STX
Revenue
$2.5B
$3.1B
Net Profit
$1.2B
$748.0M
Gross Margin
46.5%
Operating Margin
60.5%
32.1%
Net Margin
49.1%
24.0%
Revenue YoY
1.4%
44.1%
Net Profit YoY
8.5%
-23.8%
EPS (diluted)
$3.27

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
STX
STX
Q3 26
$3.1B
Q1 26
$2.8B
Q4 25
$2.5B
$2.6B
Q3 25
$2.5B
Q2 25
$2.4B
$2.4B
Q1 25
$2.5B
$2.2B
Q4 24
$2.4B
$2.3B
Q3 24
$2.3B
$2.2B
Net Profit
MPLX
MPLX
STX
STX
Q3 26
$748.0M
Q1 26
$593.0M
Q4 25
$1.2B
$549.0M
Q3 25
$1.6B
Q2 25
$1.1B
$488.0M
Q1 25
$1.1B
$340.0M
Q4 24
$1.1B
$336.0M
Q3 24
$1.0B
$305.0M
Gross Margin
MPLX
MPLX
STX
STX
Q3 26
46.5%
Q1 26
41.6%
Q4 25
39.4%
Q3 25
Q2 25
37.4%
Q1 25
35.2%
Q4 24
34.9%
Q3 24
32.9%
Operating Margin
MPLX
MPLX
STX
STX
Q3 26
32.1%
Q1 26
29.8%
Q4 25
60.5%
26.4%
Q3 25
73.2%
Q2 25
54.9%
23.2%
Q1 25
55.5%
20.0%
Q4 24
55.6%
21.0%
Q3 24
54.4%
18.6%
Net Margin
MPLX
MPLX
STX
STX
Q3 26
24.0%
Q1 26
21.0%
Q4 25
49.1%
20.9%
Q3 25
63.2%
Q2 25
44.9%
20.0%
Q1 25
46.2%
15.7%
Q4 24
45.9%
14.5%
Q3 24
44.6%
14.1%
EPS (diluted)
MPLX
MPLX
STX
STX
Q3 26
$3.27
Q1 26
$2.60
Q4 25
$2.43
Q3 25
Q2 25
$2.24
Q1 25
$1.57
Q4 24
$1.55
Q3 24
$1.41

Balance Sheet & Financial Strength

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

Metric
MPLX
MPLX
STX
STX
Cash + ST InvestmentsLiquidity on hand
$2.1B
$1.1B
Total DebtLower is stronger
$24.2B
$3.9B
Stockholders' EquityBook value
Total Assets
$43.0B
$8.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPLX
MPLX
STX
STX
Q3 26
$1.1B
Q1 26
$1.0B
Q4 25
$2.1B
$1.1B
Q3 25
$1.8B
Q2 25
$1.4B
$891.0M
Q1 25
$2.5B
$814.0M
Q4 24
$1.5B
$1.2B
Q3 24
$2.4B
$1.2B
Total Debt
MPLX
MPLX
STX
STX
Q3 26
$3.9B
Q1 26
Q4 25
$24.2B
Q3 25
$24.1B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
Q3 24
$19.3B
Stockholders' Equity
MPLX
MPLX
STX
STX
Q3 26
Q1 26
$459.0M
Q4 25
$-63.0M
Q3 25
Q2 25
$-453.0M
Q1 25
$-829.0M
Q4 24
$-1.1B
Q3 24
$-1.3B
Total Assets
MPLX
MPLX
STX
STX
Q3 26
$8.9B
Q1 26
$8.7B
Q4 25
$43.0B
$8.4B
Q3 25
$43.2B
Q2 25
$37.8B
$8.0B
Q1 25
$39.0B
$7.6B
Q4 24
$37.5B
$8.0B
Q3 24
$38.5B
$8.0B

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
STX
STX
Operating Cash FlowLast quarter
$1.5B
$2.4B
Free Cash FlowOCF − Capex
$782.0M
$953.0M
FCF MarginFCF / Revenue
31.9%
30.6%
Capex IntensityCapex / Revenue
29.1%
Cash ConversionOCF / Net Profit
1.24×
3.17×
TTM Free Cash FlowTrailing 4 quarters
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPLX
MPLX
STX
STX
Q3 26
$2.4B
Q1 26
Q4 25
$1.5B
$532.0M
Q3 25
$1.4B
Q2 25
$1.7B
$508.0M
Q1 25
$1.2B
$259.0M
Q4 24
$1.7B
$221.0M
Q3 24
$1.4B
$95.0M
Free Cash Flow
MPLX
MPLX
STX
STX
Q3 26
$953.0M
Q1 26
Q4 25
$782.0M
$427.0M
Q3 25
$905.0M
Q2 25
$1.4B
$425.0M
Q1 25
$979.0M
$216.0M
Q4 24
$1.4B
$150.0M
Q3 24
$1.1B
$27.0M
FCF Margin
MPLX
MPLX
STX
STX
Q3 26
30.6%
Q1 26
Q4 25
31.9%
16.2%
Q3 25
36.8%
Q2 25
60.9%
17.4%
Q1 25
39.8%
10.0%
Q4 24
56.6%
6.5%
Q3 24
48.4%
1.2%
Capex Intensity
MPLX
MPLX
STX
STX
Q3 26
Q1 26
Q4 25
29.1%
4.0%
Q3 25
21.4%
Q2 25
12.8%
3.4%
Q1 25
10.9%
2.0%
Q4 24
12.7%
3.1%
Q3 24
11.9%
3.1%
Cash Conversion
MPLX
MPLX
STX
STX
Q3 26
3.17×
Q1 26
Q4 25
1.24×
0.97×
Q3 25
0.92×
Q2 25
1.64×
1.04×
Q1 25
1.10×
0.76×
Q4 24
1.51×
0.66×
Q3 24
1.35×
0.31×

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%

STX
STX

Segment breakdown not available.

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