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

MPLX LP is the larger business by last-quarter revenue ($2.5B vs $2.3B, roughly 1.0× PPL Corporation). MPLX LP runs the higher net margin — 49.1% vs 11.3%, a 37.8% gap on every dollar of revenue. On growth, PPL Corporation posted the faster year-over-year revenue change (7.2% vs 1.4%). MPLX LP produced more free cash flow last quarter ($782.0M vs $-614.0M). Over the past eight quarters, MPLX LP's revenue compounded faster (6.2% CAGR vs 1.0%).

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.

PPL Corporation is a leading US-based energy utility holding company headquartered in Allentown, Pennsylvania. It delivers electricity and natural gas to approximately 3.5 million residential, commercial and industrial customers across Pennsylvania, Kentucky and Rhode Island, with core focuses on grid modernization, affordable clean energy transition, and reliable sustainable energy services for local communities.

MPLX vs PPL — Head-to-Head

Bigger by revenue
MPLX
MPLX
1.0× larger
MPLX
$2.5B
$2.3B
PPL
Growing faster (revenue YoY)
PPL
PPL
+5.8% gap
PPL
7.2%
1.4%
MPLX
Higher net margin
MPLX
MPLX
37.8% more per $
MPLX
49.1%
11.3%
PPL
More free cash flow
MPLX
MPLX
$1.4B more FCF
MPLX
$782.0M
$-614.0M
PPL
Faster 2-yr revenue CAGR
MPLX
MPLX
Annualised
MPLX
6.2%
1.0%
PPL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MPLX
MPLX
PPL
PPL
Revenue
$2.5B
$2.3B
Net Profit
$1.2B
$266.0M
Gross Margin
Operating Margin
60.5%
20.3%
Net Margin
49.1%
11.3%
Revenue YoY
1.4%
7.2%
Net Profit YoY
8.5%
50.3%
EPS (diluted)
$0.35

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
PPL
PPL
Q4 25
$2.5B
$2.3B
Q3 25
$2.5B
$2.2B
Q2 25
$2.4B
$2.0B
Q1 25
$2.5B
$2.5B
Q4 24
$2.4B
$2.2B
Q3 24
$2.3B
$2.1B
Q2 24
$2.3B
$1.9B
Q1 24
$2.2B
$2.3B
Net Profit
MPLX
MPLX
PPL
PPL
Q4 25
$1.2B
$266.0M
Q3 25
$1.6B
$318.0M
Q2 25
$1.1B
$183.0M
Q1 25
$1.1B
$414.0M
Q4 24
$1.1B
$177.0M
Q3 24
$1.0B
$214.0M
Q2 24
$1.2B
$190.0M
Q1 24
$1.0B
$307.0M
Operating Margin
MPLX
MPLX
PPL
PPL
Q4 25
60.5%
20.3%
Q3 25
73.2%
25.4%
Q2 25
54.9%
19.9%
Q1 25
55.5%
26.6%
Q4 24
55.6%
17.2%
Q3 24
54.4%
20.6%
Q2 24
62.9%
20.8%
Q1 24
57.6%
23.7%
Net Margin
MPLX
MPLX
PPL
PPL
Q4 25
49.1%
11.3%
Q3 25
63.2%
14.2%
Q2 25
44.9%
9.0%
Q1 25
46.2%
16.3%
Q4 24
45.9%
8.1%
Q3 24
44.6%
10.3%
Q2 24
52.6%
10.1%
Q1 24
46.7%
13.3%
EPS (diluted)
MPLX
MPLX
PPL
PPL
Q4 25
$0.35
Q3 25
$0.43
Q2 25
$0.25
Q1 25
$0.56
Q4 24
$0.23
Q3 24
$0.29
Q2 24
$0.26
Q1 24
$0.42

Balance Sheet & Financial Strength

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

Metric
MPLX
MPLX
PPL
PPL
Cash + ST InvestmentsLiquidity on hand
$2.1B
$1.1B
Total DebtLower is stronger
$24.2B
$18.9B
Stockholders' EquityBook value
$14.9B
Total Assets
$43.0B
$45.2B
Debt / EquityLower = less leverage
1.27×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPLX
MPLX
PPL
PPL
Q4 25
$2.1B
$1.1B
Q3 25
$1.8B
$1.1B
Q2 25
$1.4B
$294.0M
Q1 25
$2.5B
$312.0M
Q4 24
$1.5B
$306.0M
Q3 24
$2.4B
$542.0M
Q2 24
$2.5B
$282.0M
Q1 24
$385.0M
$276.0M
Total Debt
MPLX
MPLX
PPL
PPL
Q4 25
$24.2B
$18.9B
Q3 25
$24.1B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
$16.5B
Q3 24
$19.3B
Q2 24
$19.2B
Q1 24
$18.8B
Stockholders' Equity
MPLX
MPLX
PPL
PPL
Q4 25
$14.9B
Q3 25
$14.4B
Q2 25
$14.3B
Q1 25
$14.3B
Q4 24
$14.1B
Q3 24
$14.1B
Q2 24
$14.1B
Q1 24
$14.1B
Total Assets
MPLX
MPLX
PPL
PPL
Q4 25
$43.0B
$45.2B
Q3 25
$43.2B
$43.9B
Q2 25
$37.8B
$42.4B
Q1 25
$39.0B
$41.8B
Q4 24
$37.5B
$41.1B
Q3 24
$38.5B
$40.5B
Q2 24
$38.4B
$39.8B
Q1 24
$36.5B
$39.6B
Debt / Equity
MPLX
MPLX
PPL
PPL
Q4 25
1.27×
Q3 25
Q2 25
Q1 25
Q4 24
1.17×
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
PPL
PPL
Operating Cash FlowLast quarter
$1.5B
$548.0M
Free Cash FlowOCF − Capex
$782.0M
$-614.0M
FCF MarginFCF / Revenue
31.9%
-26.1%
Capex IntensityCapex / Revenue
29.1%
49.5%
Cash ConversionOCF / Net Profit
1.24×
2.06×
TTM Free Cash FlowTrailing 4 quarters
$4.1B
$-1.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPLX
MPLX
PPL
PPL
Q4 25
$1.5B
$548.0M
Q3 25
$1.4B
$966.0M
Q2 25
$1.7B
$602.0M
Q1 25
$1.2B
$513.0M
Q4 24
$1.7B
$511.0M
Q3 24
$1.4B
$781.0M
Q2 24
$1.6B
$766.0M
Q1 24
$1.3B
$282.0M
Free Cash Flow
MPLX
MPLX
PPL
PPL
Q4 25
$782.0M
$-614.0M
Q3 25
$905.0M
$-179.0M
Q2 25
$1.4B
$-328.0M
Q1 25
$979.0M
$-280.0M
Q4 24
$1.4B
$-349.0M
Q3 24
$1.1B
$102.0M
Q2 24
$1.4B
$96.0M
Q1 24
$1.0B
$-314.0M
FCF Margin
MPLX
MPLX
PPL
PPL
Q4 25
31.9%
-26.1%
Q3 25
36.8%
-8.0%
Q2 25
60.9%
-16.1%
Q1 25
39.8%
-11.0%
Q4 24
56.6%
-15.9%
Q3 24
48.4%
4.9%
Q2 24
60.0%
5.1%
Q1 24
47.7%
-13.6%
Capex Intensity
MPLX
MPLX
PPL
PPL
Q4 25
29.1%
49.5%
Q3 25
21.4%
51.2%
Q2 25
12.8%
45.6%
Q1 25
10.9%
31.2%
Q4 24
12.7%
39.3%
Q3 24
11.9%
32.7%
Q2 24
9.4%
35.8%
Q1 24
11.7%
25.9%
Cash Conversion
MPLX
MPLX
PPL
PPL
Q4 25
1.24×
2.06×
Q3 25
0.92×
3.04×
Q2 25
1.64×
3.29×
Q1 25
1.10×
1.24×
Q4 24
1.51×
2.89×
Q3 24
1.35×
3.65×
Q2 24
1.32×
4.03×
Q1 24
1.27×
0.92×

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%

PPL
PPL

Rhode Island Regulated$539.0M23%
Other$532.0M23%
Residential$451.0M19%
Nonrelated Party$425.0M18%
Transmission$228.0M10%
Commercial$117.0M5%
Wholesale Other$23.0M1%
Industrial$14.0M1%
Related Party$13.0M1%
Wholesale Municipal$6.0M0%

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