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

Dominion Energy is the larger business by last-quarter revenue ($4.2B vs $2.5B, roughly 1.7× MPLX LP). MPLX LP runs the higher net margin — 49.1% vs 13.9%, a 35.2% gap on every dollar of revenue. On growth, Dominion Energy posted the faster year-over-year revenue change (23.2% vs 1.4%). Over the past eight quarters, Dominion Energy's revenue compounded faster (9.3% CAGR vs 6.2%).

Dominion Energy, Inc., commonly referred to as Dominion, is an American energy company headquartered in Richmond, Virginia that supplies electricity in parts of Virginia, North Carolina, and South Carolina and supplies natural gas to parts of Utah, Idaho and Wyoming, West Virginia, Ohio, Pennsylvania, North Carolina, South Carolina, and Georgia. Dominion also has generation facilities in Indiana, Illinois, Connecticut, and Rhode Island.

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.

D vs MPLX — Head-to-Head

Bigger by revenue
D
D
1.7× larger
D
$4.2B
$2.5B
MPLX
Growing faster (revenue YoY)
D
D
+21.8% gap
D
23.2%
1.4%
MPLX
Higher net margin
MPLX
MPLX
35.2% more per $
MPLX
49.1%
13.9%
D
Faster 2-yr revenue CAGR
D
D
Annualised
D
9.3%
6.2%
MPLX

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
D
D
MPLX
MPLX
Revenue
$4.2B
$2.5B
Net Profit
$586.0M
$1.2B
Gross Margin
Operating Margin
18.0%
60.5%
Net Margin
13.9%
49.1%
Revenue YoY
23.2%
1.4%
Net Profit YoY
871.1%
8.5%
EPS (diluted)
$0.66

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
D
D
MPLX
MPLX
Q4 25
$4.2B
$2.5B
Q3 25
$4.5B
$2.5B
Q2 25
$3.7B
$2.4B
Q1 25
$4.1B
$2.5B
Q4 24
$3.4B
$2.4B
Q3 24
$3.8B
$2.3B
Q2 24
$3.5B
$2.3B
Q1 24
$3.5B
$2.2B
Net Profit
D
D
MPLX
MPLX
Q4 25
$586.0M
$1.2B
Q3 25
$1.0B
$1.6B
Q2 25
$760.0M
$1.1B
Q1 25
$646.0M
$1.1B
Q4 24
$-76.0M
$1.1B
Q3 24
$954.0M
$1.0B
Q2 24
$572.0M
$1.2B
Q1 24
$674.0M
$1.0B
Operating Margin
D
D
MPLX
MPLX
Q4 25
18.0%
60.5%
Q3 25
29.7%
73.2%
Q2 25
29.5%
54.9%
Q1 25
29.9%
55.5%
Q4 24
11.4%
55.6%
Q3 24
32.2%
54.4%
Q2 24
23.3%
62.9%
Q1 24
23.6%
57.6%
Net Margin
D
D
MPLX
MPLX
Q4 25
13.9%
49.1%
Q3 25
22.3%
63.2%
Q2 25
20.4%
44.9%
Q1 25
15.8%
46.2%
Q4 24
-2.2%
45.9%
Q3 24
25.2%
44.6%
Q2 24
16.6%
52.6%
Q1 24
19.1%
46.7%
EPS (diluted)
D
D
MPLX
MPLX
Q4 25
$0.66
Q3 25
$1.16
Q2 25
$0.88
Q1 25
$0.75
Q4 24
$-0.11
Q3 24
$1.12
Q2 24
$0.65
Q1 24
$0.78

Balance Sheet & Financial Strength

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

Metric
D
D
MPLX
MPLX
Cash + ST InvestmentsLiquidity on hand
$250.0M
$2.1B
Total DebtLower is stronger
$44.1B
$24.2B
Stockholders' EquityBook value
$29.1B
Total Assets
$115.9B
$43.0B
Debt / EquityLower = less leverage
1.52×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
D
D
MPLX
MPLX
Q4 25
$250.0M
$2.1B
Q3 25
$932.0M
$1.8B
Q2 25
$344.0M
$1.4B
Q1 25
$355.0M
$2.5B
Q4 24
$310.0M
$1.5B
Q3 24
$1.8B
$2.4B
Q2 24
$139.0M
$2.5B
Q1 24
$265.0M
$385.0M
Total Debt
D
D
MPLX
MPLX
Q4 25
$44.1B
$24.2B
Q3 25
$43.3B
$24.1B
Q2 25
$40.3B
$19.7B
Q1 25
$39.9B
$19.7B
Q4 24
$37.5B
$19.3B
Q3 24
$37.1B
$19.3B
Q2 24
$36.6B
$19.2B
Q1 24
$35.1B
$18.8B
Stockholders' Equity
D
D
MPLX
MPLX
Q4 25
$29.1B
Q3 25
$27.7B
Q2 25
$27.2B
Q1 25
$27.4B
Q4 24
$27.3B
Q3 24
$27.5B
Q2 24
$27.1B
Q1 24
$27.4B
Total Assets
D
D
MPLX
MPLX
Q4 25
$115.9B
$43.0B
Q3 25
$111.6B
$43.2B
Q2 25
$107.4B
$37.8B
Q1 25
$104.6B
$39.0B
Q4 24
$102.4B
$37.5B
Q3 24
$99.8B
$38.5B
Q2 24
$100.4B
$38.4B
Q1 24
$102.0B
$36.5B
Debt / Equity
D
D
MPLX
MPLX
Q4 25
1.52×
Q3 25
1.56×
Q2 25
1.48×
Q1 25
1.46×
Q4 24
1.38×
Q3 24
1.35×
Q2 24
1.35×
Q1 24
1.28×

Cash Flow & Capital Efficiency

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

Metric
D
D
MPLX
MPLX
Operating Cash FlowLast quarter
$987.0M
$1.5B
Free Cash FlowOCF − Capex
$782.0M
FCF MarginFCF / Revenue
31.9%
Capex IntensityCapex / Revenue
29.1%
Cash ConversionOCF / Net Profit
1.68×
1.24×
TTM Free Cash FlowTrailing 4 quarters
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
D
D
MPLX
MPLX
Q4 25
$987.0M
$1.5B
Q3 25
$1.9B
$1.4B
Q2 25
$1.2B
$1.7B
Q1 25
$1.2B
$1.2B
Q4 24
$641.0M
$1.7B
Q3 24
$1.5B
$1.4B
Q2 24
$856.0M
$1.6B
Q1 24
$2.0B
$1.3B
Free Cash Flow
D
D
MPLX
MPLX
Q4 25
$782.0M
Q3 25
$905.0M
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
D
D
MPLX
MPLX
Q4 25
31.9%
Q3 25
36.8%
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
D
D
MPLX
MPLX
Q4 25
29.1%
Q3 25
21.4%
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
D
D
MPLX
MPLX
Q4 25
1.68×
1.24×
Q3 25
1.93×
0.92×
Q2 25
1.64×
1.64×
Q1 25
1.83×
1.10×
Q4 24
1.51×
Q3 24
1.61×
1.35×
Q2 24
1.50×
1.32×
Q1 24
2.94×
1.27×

Financial Flow Comparison

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

Revenue Breakdown by Segment

D
D

Dominion Energy Virginia$3.0B72%
Nonregulated Electricity Sales$334.0M8%
Contracted Energy$306.0M7%
Other$292.0M7%
Other Nonregulated Revenues$97.0M2%
Other Regulated Revenues$66.0M2%
Alternative Revenue Programs$50.0M1%
Transition Services Agreements$25.0M1%
Regulated Gas Transportation And Storage$10.0M0%
Related Party$5.0M0%

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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