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Constellation Energy vs Oneok: revenue, profit, margins and growth compared

Constellation Energy brought in $25.5B of revenue in fiscal 2025, Oneok $33.6B in fiscal 2025. Revenue changed by +8.3% at Constellation Energy and +55.0% at Oneok on the year before, so Oneok grew faster. Constellation Energy kept 9.1% of its revenue as net profit, Oneok 10.1%. Free cash flow was $1.3B at Constellation Energy and $2.4B at Oneok.

Side by side, latest fiscal year

CEGOKE
Fiscal year endedFY2025 (December 31, 2025)FY2025 (December 31, 2025)
Revenue$25.5B$33.6B
Revenue growth+8.3%+55.0%
Net income$2.3B$3.4B
Net margin9.1%10.1%
Free cash flow$1.3B$2.4B
Free cash flow margin5.0%7.3%
Earnings per share (diluted)$7.40$5.42
Cash$3.6B$78M
Debt$7.4B$32B
Price to earnings35.616.4
Market value$93.3B$55.9B
Dividend yield0.15%4.65%
Rank by revenue in sector#7 of 109 · Utilities#2 of 109 · Utilities

Over the years

Revenue
CEG FY2020: $17.6BCEG FY2022: $19.6BCEG FY2022: $24.4BCEG FY2023: $24.9BCEG FY2024: $23.6BCEG FY2025: $25.5BOKE FY2018: $12.6BOKE FY2019: $10.2BOKE FY2020: $8.5BOKE FY2021: $16.5BOKE FY2022: $22.4BOKE FY2023: $17.7BOKE FY2024: $21.7BOKE FY2025: $33.6BFY18FY19FY20FY21FY22FY23FY24FY25
CEG $25.5BOKE $33.6B
Net income
CEG FY2020: $589MCEG FY2022: -$205MCEG FY2022: -$160MCEG FY2023: $1.6BCEG FY2024: $3.7BCEG FY2025: $2.3BOKE FY2018: $1.2BOKE FY2019: $1.3BOKE FY2020: $612.8MOKE FY2021: $1.5BOKE FY2022: $1.7BOKE FY2023: $2.7BOKE FY2024: $3BOKE FY2025: $3.4BFY18FY19FY20FY21FY22FY23FY24FY25
CEG $2.3BOKE $3.4B
Net margin
CEG FY2020: 3.3%CEG FY2022: -1.0%CEG FY2022: -0.7%CEG FY2023: 6.5%CEG FY2024: 15.9%CEG FY2025: 9.1%OKE FY2018: 9.1%OKE FY2019: 12.6%OKE FY2020: 7.2%OKE FY2021: 9.1%OKE FY2022: 7.7%OKE FY2023: 15.0%OKE FY2024: 14.0%OKE FY2025: 10.1%FY18FY19FY20FY21FY22FY23FY24FY25
CEG 9.1%OKE 10.1%
Revenue growth
CEG FY2022: +11.6%CEG FY2022: +24.4%CEG FY2023: +2.0%CEG FY2024: -5.4%CEG FY2025: +8.3%OKE FY2019: -19.3%OKE FY2020: -16.0%OKE FY2021: +93.6%OKE FY2022: +35.3%OKE FY2023: -21.0%OKE FY2024: +22.7%OKE FY2025: +55.0%FY19FY20FY21FY22FY23FY24FY25
CEG +8.3%OKE +55.0%
Free cash flow
CEG FY2020: -$1.2BCEG FY2022: -$2.7BCEG FY2022: -$4BCEG FY2023: -$7.7BCEG FY2024: -$5BCEG FY2025: $1.3BOKE FY2018: $45.2MOKE FY2019: -$1.9BOKE FY2020: -$296.3MOKE FY2021: $1.8BOKE FY2022: $1.7BOKE FY2023: $2.8BOKE FY2024: $2.9BOKE FY2025: $2.4BFY18FY19FY20FY21FY22FY23FY24FY25
CEG $1.3BOKE $2.4B

Fiscal years as each company reports them; the two may end in different months.

Questions about Constellation Energy and Oneok

Which is bigger by revenue, Constellation Energy or Oneok?

Oneok is bigger by revenue: $33.6B in fiscal 2025, against $25.5B for Constellation Energy in fiscal 2025.

Which keeps more of its revenue as profit, Constellation Energy or Oneok?

Constellation Energy had a net margin of 9.1% in fiscal 2025; Oneok had 10.1% in fiscal 2025.

Which grew revenue faster, Constellation Energy or Oneok?

In their latest fiscal years revenue changed by +8.3% at Constellation Energy and +55.0% at Oneok.

Where do these numbers come from?

From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.

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