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Side-by-side financial comparison of NATURAL GAS SERVICES GROUP INC (NGS) and WaterBridge Infrastructure LLC (WBI). Click either name above to swap in a different company.

WaterBridge Infrastructure LLC is the larger business by last-quarter revenue ($123.3M vs $46.1M, roughly 2.7× NATURAL GAS SERVICES GROUP INC). NATURAL GAS SERVICES GROUP INC runs the higher net margin — 8.9% vs -0.5%, a 9.4% gap on every dollar of revenue. NATURAL GAS SERVICES GROUP INC produced more free cash flow last quarter ($-20.7M vs $-117.8M).

Southern Company Gas, formerly AGL Resources, is an American Fortune 500 energy services holding company headquartered in Atlanta, Georgia. The company's operations consist of natural gas distribution, wholesale services, retail operations, and midstream operations. Southern Company Gas is one of the largest natural gas distribution companies in the United States. The company serves approximately 4.5 million utility customers through its regulated distribution subsidiaries across four states....

Global Infrastructure Partners, LLC (GIP) is an American infrastructure investment fund making equity and selected debt investments across markets worldwide. GIP's main headquarters are located in New York City and its equity investments are based on infrastructure assets in the energy, transport and water & waste sectors. GIP employs approximately 150 investment and operational professionals and has offices in New York, London, Stamford, Sydney, Melbourne, Brisbane, Mumbai, Delhi, Singapore ...

NGS vs WBI — Head-to-Head

Bigger by revenue
WBI
WBI
2.7× larger
WBI
$123.3M
$46.1M
NGS
Higher net margin
NGS
NGS
9.4% more per $
NGS
8.9%
-0.5%
WBI
More free cash flow
NGS
NGS
$97.1M more FCF
NGS
$-20.7M
$-117.8M
WBI

Income Statement — Q4 2025 vs Q3 2025

Metric
NGS
NGS
WBI
WBI
Revenue
$46.1M
$123.3M
Net Profit
$4.1M
$-667.0K
Gross Margin
28.4%
Operating Margin
15.4%
19.2%
Net Margin
8.9%
-0.5%
Revenue YoY
13.5%
Net Profit YoY
43.2%
EPS (diluted)
$0.32
$-0.02

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
NGS
NGS
WBI
WBI
Q4 25
$46.1M
Q3 25
$43.4M
$123.3M
Q2 25
$41.4M
Q1 25
$41.4M
Q4 24
$40.7M
Q3 24
$3.3M
Q2 24
$3.6M
Q1 24
$3.2M
Net Profit
NGS
NGS
WBI
WBI
Q4 25
$4.1M
Q3 25
$5.8M
$-667.0K
Q2 25
$5.2M
Q1 25
$4.9M
Q4 24
$2.9M
Q3 24
$5.0M
Q2 24
$4.3M
Q1 24
$5.1M
Gross Margin
NGS
NGS
WBI
WBI
Q4 25
Q3 25
28.4%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Operating Margin
NGS
NGS
WBI
WBI
Q4 25
15.4%
Q3 25
24.8%
19.2%
Q2 25
24.0%
Q1 25
23.0%
Q4 24
14.9%
Q3 24
Q2 24
Q1 24
Net Margin
NGS
NGS
WBI
WBI
Q4 25
8.9%
Q3 25
13.3%
-0.5%
Q2 25
12.5%
Q1 25
11.7%
Q4 24
7.0%
Q3 24
150.3%
Q2 24
119.2%
Q1 24
160.7%
EPS (diluted)
NGS
NGS
WBI
WBI
Q4 25
$0.32
Q3 25
$0.46
$-0.02
Q2 25
$0.41
Q1 25
$0.38
Q4 24
$0.22
Q3 24
$0.40
Q2 24
$0.34
Q1 24
$0.41

Balance Sheet & Financial Strength

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

Metric
NGS
NGS
WBI
WBI
Cash + ST InvestmentsLiquidity on hand
$346.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$274.7M
$607.7M
Total Assets
$586.8M
$3.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NGS
NGS
WBI
WBI
Q4 25
Q3 25
$346.6M
Q2 25
$325.0K
Q1 25
$2.1M
Q4 24
$2.1M
Q3 24
$410.0K
Q2 24
$3.6M
Q1 24
$5.2M
Total Debt
NGS
NGS
WBI
WBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
$163.0M
Q1 24
$172.0M
Stockholders' Equity
NGS
NGS
WBI
WBI
Q4 25
$274.7M
Q3 25
$271.4M
$607.7M
Q2 25
$266.2M
Q1 25
$260.3M
Q4 24
$255.1M
Q3 24
$251.2M
Q2 24
$245.7M
Q1 24
$241.3M
Total Assets
NGS
NGS
WBI
WBI
Q4 25
$586.8M
Q3 25
$562.3M
$3.9B
Q2 25
$525.5M
Q1 25
$501.7M
Q4 24
$492.5M
Q3 24
$498.1M
Q2 24
$489.2M
Q1 24
$486.2M
Debt / Equity
NGS
NGS
WBI
WBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
0.66×
Q1 24
0.71×

Cash Flow & Capital Efficiency

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

Metric
NGS
NGS
WBI
WBI
Operating Cash FlowLast quarter
$13.9M
$71.5M
Free Cash FlowOCF − Capex
$-20.7M
$-117.8M
FCF MarginFCF / Revenue
-44.8%
-95.6%
Capex IntensityCapex / Revenue
74.9%
153.6%
Cash ConversionOCF / Net Profit
3.38×
TTM Free Cash FlowTrailing 4 quarters
$-58.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NGS
NGS
WBI
WBI
Q4 25
$13.9M
Q3 25
$16.8M
$71.5M
Q2 25
$11.0M
Q1 25
$21.3M
Q4 24
$9.4M
Q3 24
$25.9M
Q2 24
$25.5M
Q1 24
$5.6M
Free Cash Flow
NGS
NGS
WBI
WBI
Q4 25
$-20.7M
Q3 25
$-25.1M
$-117.8M
Q2 25
$-14.8M
Q1 25
$2.0M
Q4 24
$-5.1M
Q3 24
$-3.2M
Q2 24
$8.2M
Q1 24
$-5.3M
FCF Margin
NGS
NGS
WBI
WBI
Q4 25
-44.8%
Q3 25
-57.7%
-95.6%
Q2 25
-35.8%
Q1 25
4.9%
Q4 24
-12.6%
Q3 24
-95.0%
Q2 24
229.5%
Q1 24
-167.8%
Capex Intensity
NGS
NGS
WBI
WBI
Q4 25
74.9%
Q3 25
96.5%
153.6%
Q2 25
62.4%
Q1 25
46.5%
Q4 24
35.8%
Q3 24
871.9%
Q2 24
486.1%
Q1 24
344.5%
Cash Conversion
NGS
NGS
WBI
WBI
Q4 25
3.38×
Q3 25
2.90×
Q2 25
2.12×
Q1 25
4.38×
Q4 24
3.29×
Q3 24
5.17×
Q2 24
6.00×
Q1 24
1.10×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NGS
NGS

Segment breakdown not available.

WBI
WBI

Produced Water Handling Revenues Excluding Skim Oil$102.3M83%
Water Bridge Equity Finance Limited Liability Company$12.0M10%
Skim Oil$9.1M7%
Desert Environmental Limited Liability Company$1.2M1%

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