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Side-by-side financial comparison of NRG Energy (NRG) and Williams Companies (WMB). Click either name above to swap in a different company.

NRG Energy is the larger business by last-quarter revenue ($7.7B vs $3.8B, roughly 2.0× Williams Companies). Williams Companies runs the higher net margin — 19.1% vs 0.9%, a 18.2% gap on every dollar of revenue. On growth, NRG Energy posted the faster year-over-year revenue change (13.6% vs 12.7%). NRG Energy produced more free cash flow last quarter ($-175.0M vs $-379.0M). Over the past eight quarters, Williams Companies's revenue compounded faster (7.3% CAGR vs 2.0%).

NRG Energy, Inc. is an American energy company, headquartered in Houston, Texas. It was formerly the wholesale arm of Northern States Power Company (NSP), which became Xcel Energy, but became independent in 2000. NRG Energy is involved in energy generation and retail electricity. Their portfolio includes natural gas generation, coal generation, oil generation, nuclear generation, wind generation, utility-scale generation, and distributed solar generation.

The Williams Companies, Inc. is an American energy company based in Tulsa, Oklahoma. Its core business is natural gas processing and transportation, with additional petroleum and electricity generation assets. A Fortune 500 company, its common stock is a component of the S&P 500.

NRG vs WMB — Head-to-Head

Bigger by revenue
NRG
NRG
2.0× larger
NRG
$7.7B
$3.8B
WMB
Growing faster (revenue YoY)
NRG
NRG
+1.0% gap
NRG
13.6%
12.7%
WMB
Higher net margin
WMB
WMB
18.2% more per $
WMB
19.1%
0.9%
NRG
More free cash flow
NRG
NRG
$204.0M more FCF
NRG
$-175.0M
$-379.0M
WMB
Faster 2-yr revenue CAGR
WMB
WMB
Annualised
WMB
7.3%
2.0%
NRG

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
NRG
NRG
WMB
WMB
Revenue
$7.7B
$3.8B
Net Profit
$66.0M
$734.0M
Gross Margin
Operating Margin
3.9%
27.3%
Net Margin
0.9%
19.1%
Revenue YoY
13.6%
12.7%
Net Profit YoY
-89.7%
51.0%
EPS (diluted)
$0.33
$0.60

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
NRG
NRG
WMB
WMB
Q4 25
$7.7B
$3.8B
Q3 25
$7.5B
$3.5B
Q2 25
$6.7B
$3.4B
Q1 25
$8.5B
$4.2B
Q4 24
$6.8B
$3.4B
Q3 24
$7.1B
$3.0B
Q2 24
$6.5B
$2.8B
Q1 24
$7.4B
$3.3B
Net Profit
NRG
NRG
WMB
WMB
Q4 25
$66.0M
$734.0M
Q3 25
$152.0M
$647.0M
Q2 25
$-104.0M
$546.0M
Q1 25
$750.0M
$691.0M
Q4 24
$643.0M
$486.0M
Q3 24
$-767.0M
$706.0M
Q2 24
$738.0M
$401.0M
Q1 24
$511.0M
$632.0M
Operating Margin
NRG
NRG
WMB
WMB
Q4 25
3.9%
27.3%
Q3 25
5.5%
31.8%
Q2 25
28.0%
Q1 25
13.4%
26.1%
Q4 24
14.1%
23.2%
Q3 24
-11.4%
27.6%
Q2 24
21.8%
24.4%
Q1 24
11.8%
30.3%
Net Margin
NRG
NRG
WMB
WMB
Q4 25
0.9%
19.1%
Q3 25
2.0%
18.5%
Q2 25
-1.6%
16.2%
Q1 25
8.8%
16.5%
Q4 24
9.5%
14.2%
Q3 24
-10.8%
23.3%
Q2 24
11.4%
14.1%
Q1 24
6.9%
18.9%
EPS (diluted)
NRG
NRG
WMB
WMB
Q4 25
$0.33
$0.60
Q3 25
$0.69
$0.53
Q2 25
$-0.62
$0.45
Q1 25
$3.61
$0.56
Q4 24
$3.10
$0.39
Q3 24
$-3.79
$0.58
Q2 24
$3.37
$0.33
Q1 24
$2.31
$0.52

Balance Sheet & Financial Strength

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

Metric
NRG
NRG
WMB
WMB
Cash + ST InvestmentsLiquidity on hand
$4.7B
Total DebtLower is stronger
$16.4B
$27.3B
Stockholders' EquityBook value
$1.7B
$12.8B
Total Assets
$29.1B
$58.6B
Debt / EquityLower = less leverage
9.76×
2.13×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NRG
NRG
WMB
WMB
Q4 25
$4.7B
Q3 25
$732.0M
Q2 25
$180.0M
Q1 25
$693.0M
Q4 24
$966.0M
Q3 24
$1.1B
Q2 24
$376.0M
Q1 24
$278.0M
Total Debt
NRG
NRG
WMB
WMB
Q4 25
$16.4B
$27.3B
Q3 25
$11.2B
$25.6B
Q2 25
$9.8B
$25.6B
Q1 25
$9.8B
$24.1B
Q4 24
$9.8B
$24.7B
Q3 24
$10.4B
$24.8B
Q2 24
$10.4B
$24.1B
Q1 24
$9.6B
$24.1B
Stockholders' Equity
NRG
NRG
WMB
WMB
Q4 25
$1.7B
$12.8B
Q3 25
$2.0B
$12.5B
Q2 25
$2.3B
$12.4B
Q1 25
$2.8B
$12.5B
Q4 24
$2.5B
$12.4B
Q3 24
$2.5B
$12.4B
Q2 24
$3.6B
$12.3B
Q1 24
$3.3B
$12.4B
Total Assets
NRG
NRG
WMB
WMB
Q4 25
$29.1B
$58.6B
Q3 25
$24.0B
$55.7B
Q2 25
$24.1B
$56.1B
Q1 25
$25.0B
$54.9B
Q4 24
$24.0B
$54.5B
Q3 24
$23.7B
$53.8B
Q2 24
$25.8B
$52.4B
Q1 24
$25.4B
$52.7B
Debt / Equity
NRG
NRG
WMB
WMB
Q4 25
9.76×
2.13×
Q3 25
5.66×
2.04×
Q2 25
4.29×
2.06×
Q1 25
3.53×
1.93×
Q4 24
3.96×
1.99×
Q3 24
4.14×
2.00×
Q2 24
2.88×
1.96×
Q1 24
2.90×
1.94×

Cash Flow & Capital Efficiency

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

Metric
NRG
NRG
WMB
WMB
Operating Cash FlowLast quarter
$123.0M
$1.6B
Free Cash FlowOCF − Capex
$-175.0M
$-379.0M
FCF MarginFCF / Revenue
-2.3%
-9.9%
Capex IntensityCapex / Revenue
3.9%
50.9%
Cash ConversionOCF / Net Profit
1.86×
2.15×
TTM Free Cash FlowTrailing 4 quarters
$766.0M
$1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NRG
NRG
WMB
WMB
Q4 25
$123.0M
$1.6B
Q3 25
$484.0M
$1.4B
Q2 25
$451.0M
$1.4B
Q1 25
$855.0M
$1.4B
Q4 24
$952.0M
$1.2B
Q3 24
$31.0M
$1.2B
Q2 24
$1.1B
$1.3B
Q1 24
$267.0M
$1.2B
Free Cash Flow
NRG
NRG
WMB
WMB
Q4 25
$-175.0M
$-379.0M
Q3 25
$230.0M
$485.0M
Q2 25
$73.0M
$478.0M
Q1 25
$638.0M
$421.0M
Q4 24
$766.0M
$450.0M
Q3 24
$-83.0M
$561.0M
Q2 24
$953.0M
$700.0M
Q1 24
$198.0M
$690.0M
FCF Margin
NRG
NRG
WMB
WMB
Q4 25
-2.3%
-9.9%
Q3 25
3.1%
13.9%
Q2 25
1.1%
14.2%
Q1 25
7.5%
10.1%
Q4 24
11.3%
13.2%
Q3 24
-1.2%
18.5%
Q2 24
14.7%
24.6%
Q1 24
2.7%
20.7%
Capex Intensity
NRG
NRG
WMB
WMB
Q4 25
3.9%
50.9%
Q3 25
3.4%
27.3%
Q2 25
5.7%
28.8%
Q1 25
2.6%
24.2%
Q4 24
2.8%
22.5%
Q3 24
1.6%
22.5%
Q2 24
1.6%
20.3%
Q1 24
0.9%
16.3%
Cash Conversion
NRG
NRG
WMB
WMB
Q4 25
1.86×
2.15×
Q3 25
3.18×
2.22×
Q2 25
2.66×
Q1 25
1.14×
2.07×
Q4 24
1.48×
2.51×
Q3 24
1.76×
Q2 24
1.43×
3.19×
Q1 24
0.52×
1.95×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NRG
NRG

Segment breakdown not available.

WMB
WMB

Services$2.2B57%
Natural Gas Us Regulated$740.0M19%
West$730.0M19%
Non Regulated Service Commodity Consideration$51.0M1%
Natural Gas Gathering Transportation Marketing And Processing$45.0M1%
Affiliated Entity$23.0M1%
Other$14.0M0%
Other Service$11.0M0%

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