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Side-by-side financial comparison of OCEANEERING INTERNATIONAL INC (OII) and Select Water Solutions, Inc. (WTTR). Click either name above to swap in a different company.

OCEANEERING INTERNATIONAL INC is the larger business by last-quarter revenue ($692.4M vs $346.5M, roughly 2.0× Select Water Solutions, Inc.). OCEANEERING INTERNATIONAL INC runs the higher net margin — 5.2% vs -0.1%, a 5.3% gap on every dollar of revenue. On growth, OCEANEERING INTERNATIONAL INC posted the faster year-over-year revenue change (2.7% vs -0.7%). Select Water Solutions, Inc. produced more free cash flow last quarter ($-6.0M vs $-76.5M). Over the past eight quarters, OCEANEERING INTERNATIONAL INC's revenue compounded faster (1.8% CAGR vs -2.8%).

Oceaneering International, Inc. is a subsea engineering and applied technology company based in Houston, Texas, U.S. that provides engineered services and hardware to customers who operate in marine, space, and other environments.

Select Water Solutions, Inc. is a leading provider of end-to-end water management, fluid handling, and environmental sustainability services primarily catering to the North American onshore oil and gas exploration and production sector. Its core offerings include water sourcing, treatment, recycling, disposal, and chemical solutions to help clients cut operational costs and reduce environmental footprint.

OII vs WTTR — Head-to-Head

Bigger by revenue
OII
OII
2.0× larger
OII
$692.4M
$346.5M
WTTR
Growing faster (revenue YoY)
OII
OII
+3.4% gap
OII
2.7%
-0.7%
WTTR
Higher net margin
OII
OII
5.3% more per $
OII
5.2%
-0.1%
WTTR
More free cash flow
WTTR
WTTR
$70.5M more FCF
WTTR
$-6.0M
$-76.5M
OII
Faster 2-yr revenue CAGR
OII
OII
Annualised
OII
1.8%
-2.8%
WTTR

Income Statement — Q1 2026 vs Q4 2025

Metric
OII
OII
WTTR
WTTR
Revenue
$692.4M
$346.5M
Net Profit
$36.1M
$-346.0K
Gross Margin
13.1%
Operating Margin
-0.1%
Net Margin
5.2%
-0.1%
Revenue YoY
2.7%
-0.7%
Net Profit YoY
-79.7%
78.9%
EPS (diluted)
$0.36

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
OII
OII
WTTR
WTTR
Q1 26
$692.4M
Q4 25
$668.6M
$346.5M
Q3 25
$742.9M
$322.2M
Q2 25
$698.2M
$364.2M
Q1 25
$674.5M
$374.4M
Q4 24
$713.5M
$349.0M
Q3 24
$679.8M
$371.3M
Q2 24
$668.8M
$365.1M
Net Profit
OII
OII
WTTR
WTTR
Q1 26
$36.1M
Q4 25
$177.7M
$-346.0K
Q3 25
$71.3M
$2.7M
Q2 25
$54.4M
$10.6M
Q1 25
$50.4M
$8.2M
Q4 24
$56.1M
$-1.6M
Q3 24
$41.2M
$15.8M
Q2 24
$35.0M
$12.9M
Gross Margin
OII
OII
WTTR
WTTR
Q1 26
Q4 25
19.8%
13.1%
Q3 25
20.6%
13.5%
Q2 25
21.3%
15.9%
Q1 25
20.0%
14.9%
Q4 24
19.9%
12.7%
Q3 24
19.3%
16.8%
Q2 24
18.0%
16.5%
Operating Margin
OII
OII
WTTR
WTTR
Q1 26
Q4 25
9.8%
-0.1%
Q3 25
11.6%
-0.5%
Q2 25
11.3%
4.2%
Q1 25
10.9%
4.2%
Q4 24
10.9%
0.7%
Q3 24
10.5%
6.6%
Q2 24
9.0%
5.6%
Net Margin
OII
OII
WTTR
WTTR
Q1 26
5.2%
Q4 25
26.6%
-0.1%
Q3 25
9.6%
0.8%
Q2 25
7.8%
2.9%
Q1 25
7.5%
2.2%
Q4 24
7.9%
-0.5%
Q3 24
6.1%
4.3%
Q2 24
5.2%
3.5%
EPS (diluted)
OII
OII
WTTR
WTTR
Q1 26
$0.36
Q4 25
$1.75
Q3 25
$0.71
Q2 25
$0.54
Q1 25
$0.49
Q4 24
$0.55
Q3 24
$0.40
Q2 24
$0.34

Balance Sheet & Financial Strength

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

Metric
OII
OII
WTTR
WTTR
Cash + ST InvestmentsLiquidity on hand
$18.1M
Total DebtLower is stronger
$488.8M
$320.0M
Stockholders' EquityBook value
$1.1B
$805.6M
Total Assets
$2.6B
$1.6B
Debt / EquityLower = less leverage
0.44×
0.40×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OII
OII
WTTR
WTTR
Q1 26
Q4 25
$695.9M
$18.1M
Q3 25
$7.0M
$17.8M
Q2 25
$7.0M
$51.2M
Q1 25
$7.0M
$27.9M
Q4 24
$504.5M
$20.0M
Q3 24
$10.9M
Q2 24
$16.4M
Total Debt
OII
OII
WTTR
WTTR
Q1 26
$488.8M
Q4 25
$487.4M
$320.0M
Q3 25
$305.0M
Q2 25
$275.0M
Q1 25
$250.0M
Q4 24
$482.0M
$85.0M
Q3 24
$80.0M
Q2 24
$90.0M
Stockholders' Equity
OII
OII
WTTR
WTTR
Q1 26
$1.1B
Q4 25
$1.1B
$805.6M
Q3 25
$907.7M
$808.1M
Q2 25
$842.1M
$799.3M
Q1 25
$773.1M
$793.1M
Q4 24
$714.3M
$793.5M
Q3 24
$698.0M
$796.5M
Q2 24
$651.0M
$782.0M
Total Assets
OII
OII
WTTR
WTTR
Q1 26
$2.6B
Q4 25
$2.7B
$1.6B
Q3 25
$2.5B
$1.6B
Q2 25
$2.3B
$1.5B
Q1 25
$2.3B
$1.5B
Q4 24
$2.3B
$1.4B
Q3 24
$2.4B
$1.3B
Q2 24
$2.3B
$1.3B
Debt / Equity
OII
OII
WTTR
WTTR
Q1 26
0.44×
Q4 25
0.46×
0.40×
Q3 25
0.38×
Q2 25
0.34×
Q1 25
0.32×
Q4 24
0.67×
0.11×
Q3 24
0.10×
Q2 24
0.12×

Cash Flow & Capital Efficiency

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

Metric
OII
OII
WTTR
WTTR
Operating Cash FlowLast quarter
$65.5M
Free Cash FlowOCF − Capex
$-76.5M
$-6.0M
FCF MarginFCF / Revenue
-11.1%
-1.7%
Capex IntensityCapex / Revenue
2.5%
20.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$238.1M
$-79.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OII
OII
WTTR
WTTR
Q1 26
Q4 25
$221.1M
$65.5M
Q3 25
$101.3M
$71.7M
Q2 25
$77.2M
$82.6M
Q1 25
$-80.7M
$-5.1M
Q4 24
$128.4M
$67.8M
Q3 24
$91.9M
$51.9M
Q2 24
$52.6M
$83.1M
Free Cash Flow
OII
OII
WTTR
WTTR
Q1 26
$-76.5M
Q4 25
$190.7M
$-6.0M
Q3 25
$77.0M
$-23.5M
Q2 25
$46.9M
$3.2M
Q1 25
$-106.8M
$-53.5M
Q4 24
$94.5M
$12.7M
Q3 24
$67.0M
$16.7M
Q2 24
$29.8M
$34.0M
FCF Margin
OII
OII
WTTR
WTTR
Q1 26
-11.1%
Q4 25
28.5%
-1.7%
Q3 25
10.4%
-7.3%
Q2 25
6.7%
0.9%
Q1 25
-15.8%
-14.3%
Q4 24
13.2%
3.6%
Q3 24
9.9%
4.5%
Q2 24
4.5%
9.3%
Capex Intensity
OII
OII
WTTR
WTTR
Q1 26
2.5%
Q4 25
4.6%
20.6%
Q3 25
3.3%
29.6%
Q2 25
4.3%
21.8%
Q1 25
3.9%
12.9%
Q4 24
4.7%
15.8%
Q3 24
3.7%
9.5%
Q2 24
3.4%
13.5%
Cash Conversion
OII
OII
WTTR
WTTR
Q1 26
Q4 25
1.24×
Q3 25
1.42×
26.72×
Q2 25
1.42×
7.76×
Q1 25
-1.60×
-0.61×
Q4 24
2.29×
Q3 24
2.23×
3.29×
Q2 24
1.50×
6.46×

Financial Flow Comparison

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

Revenue Breakdown by Segment

OII
OII

Backlog at end of period$492.0M71%
Other$162.8M24%
ROV days available$22.5M3%
ROV days utilized$15.1M2%

WTTR
WTTR

Water Services$178.3M51%
Marcellus Utica$38.6M11%
Rockies$38.3M11%
Eagle Ford$28.2M8%
Midcon$23.0M7%
Haynesville E.Texas$19.1M6%
Bakken$17.3M5%
Eliminations And Other Geographical Regions$3.6M1%

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