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Side-by-side financial comparison of INNOSPEC INC. (IOSP) and NATIONAL FUEL GAS CO (NFG). Click either name above to swap in a different company.

INNOSPEC INC. is the larger business by last-quarter revenue ($455.6M vs $425.9M, roughly 1.1× NATIONAL FUEL GAS CO). NATIONAL FUEL GAS CO runs the higher net margin — 35.7% vs 10.4%, a 25.3% gap on every dollar of revenue. On growth, NATIONAL FUEL GAS CO posted the faster year-over-year revenue change (1.7% vs -2.4%). Over the past eight quarters, NATIONAL FUEL GAS CO's revenue compounded faster (12.1% CAGR vs -4.6%).

Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd., is an American specialty chemical company. It comprises three business units:The Performance Chemicals business trades in the personal care, home care, agrochemical, mining and industrial markets. The Fuel Specialties business specializes in manufacturing and supplying fuel additives. The Oilfield Services business supplies drilling, completion and production chemicals.

National Fuel Gas Company is a diversified energy company with $6.2 billion in assets distributed among the following five operating segments: Exploration and Production, Pipeline and Storage, Gathering, Utility, and Energy Marketing. National Fuel Gas was incorporated in 1902 and is based in Williamsville, New York.

IOSP vs NFG — Head-to-Head

Bigger by revenue
IOSP
IOSP
1.1× larger
IOSP
$455.6M
$425.9M
NFG
Growing faster (revenue YoY)
NFG
NFG
+4.1% gap
NFG
1.7%
-2.4%
IOSP
Higher net margin
NFG
NFG
25.3% more per $
NFG
35.7%
10.4%
IOSP
Faster 2-yr revenue CAGR
NFG
NFG
Annualised
NFG
12.1%
-4.6%
IOSP

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
IOSP
IOSP
NFG
NFG
Revenue
$455.6M
$425.9M
Net Profit
$47.4M
$152.0M
Gross Margin
28.0%
Operating Margin
10.3%
81.5%
Net Margin
10.4%
35.7%
Revenue YoY
-2.4%
1.7%
Net Profit YoY
167.3%
EPS (diluted)
$1.90
$1.59

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
IOSP
IOSP
NFG
NFG
Q1 26
$425.9M
Q4 25
$455.6M
$637.9M
Q3 25
$441.9M
$443.1M
Q2 25
$439.7M
$527.4M
Q1 25
$440.8M
$734.8M
Q4 24
$466.8M
$513.8M
Q3 24
$443.4M
$310.0M
Q2 24
$435.0M
$338.6M
Net Profit
IOSP
IOSP
NFG
NFG
Q1 26
$152.0M
Q4 25
$47.4M
$181.6M
Q3 25
$12.9M
$107.3M
Q2 25
$23.5M
$149.8M
Q1 25
$32.8M
$216.4M
Q4 24
$-70.4M
$45.0M
Q3 24
$33.4M
$-167.6M
Q2 24
$31.2M
$-54.2M
Gross Margin
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
28.0%
86.6%
Q3 25
26.4%
Q2 25
28.0%
94.7%
Q1 25
28.4%
81.6%
Q4 24
29.2%
87.3%
Q3 24
28.0%
Q2 24
29.2%
98.5%
Operating Margin
IOSP
IOSP
NFG
NFG
Q1 26
81.5%
Q4 25
10.3%
43.3%
Q3 25
1.3%
40.6%
Q2 25
7.8%
43.7%
Q1 25
9.6%
43.2%
Q4 24
8.8%
16.8%
Q3 24
10.3%
-63.4%
Q2 24
9.4%
-15.2%
Net Margin
IOSP
IOSP
NFG
NFG
Q1 26
35.7%
Q4 25
10.4%
28.5%
Q3 25
2.9%
24.2%
Q2 25
5.3%
28.4%
Q1 25
7.4%
29.4%
Q4 24
-15.1%
8.8%
Q3 24
7.5%
-54.1%
Q2 24
7.2%
-16.0%
EPS (diluted)
IOSP
IOSP
NFG
NFG
Q1 26
$1.59
Q4 25
$1.90
$1.98
Q3 25
$0.52
$1.18
Q2 25
$0.94
$1.64
Q1 25
$1.31
$2.37
Q4 24
$-2.80
$0.49
Q3 24
$1.33
$-1.81
Q2 24
$1.24
$-0.59

Balance Sheet & Financial Strength

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

Metric
IOSP
IOSP
NFG
NFG
Cash + ST InvestmentsLiquidity on hand
$292.5M
Total DebtLower is stronger
$300.0M
Stockholders' EquityBook value
$1.3B
Total Assets
$1.8B
$9.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
$292.5M
$271.4M
Q3 25
$270.8M
$43.2M
Q2 25
$266.6M
$39.3M
Q1 25
$299.8M
$40.0M
Q4 24
$289.2M
$48.7M
Q3 24
$303.8M
$38.2M
Q2 24
$240.2M
$81.4M
Total Debt
IOSP
IOSP
NFG
NFG
Q1 26
$300.0M
Q4 25
$2.7B
Q3 25
$2.7B
Q2 25
$2.7B
Q1 25
$2.7B
Q4 24
$2.7B
Q3 24
$2.7B
Q2 24
$2.7B
Stockholders' Equity
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
$1.3B
$3.6B
Q3 25
$1.3B
$3.1B
Q2 25
$1.3B
$3.0B
Q1 25
$1.3B
$2.8B
Q4 24
$1.2B
$-76.2M
Q3 24
$1.2B
$-15.5M
Q2 24
$1.2B
$5.0M
Total Assets
IOSP
IOSP
NFG
NFG
Q1 26
$9.1B
Q4 25
$1.8B
$9.2B
Q3 25
$1.8B
$8.7B
Q2 25
$1.8B
$8.4B
Q1 25
$1.8B
$8.5B
Q4 24
$1.7B
$8.3B
Q3 24
$1.8B
$8.3B
Q2 24
$1.7B
$8.5B
Debt / Equity
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
0.75×
Q3 25
0.87×
Q2 25
0.90×
Q1 25
0.99×
Q4 24
Q3 24
Q2 24
532.10×

Cash Flow & Capital Efficiency

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

Metric
IOSP
IOSP
NFG
NFG
Operating Cash FlowLast quarter
$61.4M
$657.3M
Free Cash FlowOCF − Capex
$46.8M
FCF MarginFCF / Revenue
10.3%
Capex IntensityCapex / Revenue
3.2%
117.0%
Cash ConversionOCF / Net Profit
1.30×
4.32×
TTM Free Cash FlowTrailing 4 quarters
$88.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IOSP
IOSP
NFG
NFG
Q1 26
$657.3M
Q4 25
$61.4M
$274.9M
Q3 25
$39.3M
$237.8M
Q2 25
$9.3M
$388.4M
Q1 25
$28.3M
$253.8M
Q4 24
$25.7M
$220.1M
Q3 24
$73.5M
$197.9M
Q2 24
$4.7M
$281.8M
Free Cash Flow
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
$46.8M
$-2.7M
Q3 25
$25.0M
$-47.8M
Q2 25
$-3.7M
$195.3M
Q1 25
$19.9M
$59.9M
Q4 24
$13.6M
$-20.3M
Q3 24
$65.8M
$-49.1M
Q2 24
$-6.2M
$79.5M
FCF Margin
IOSP
IOSP
NFG
NFG
Q1 26
Q4 25
10.3%
-0.4%
Q3 25
5.7%
-10.8%
Q2 25
-0.8%
37.0%
Q1 25
4.5%
8.2%
Q4 24
2.9%
-4.0%
Q3 24
14.8%
-15.8%
Q2 24
-1.4%
23.5%
Capex Intensity
IOSP
IOSP
NFG
NFG
Q1 26
117.0%
Q4 25
3.2%
43.5%
Q3 25
3.2%
64.4%
Q2 25
3.0%
36.6%
Q1 25
1.9%
26.4%
Q4 24
2.6%
46.8%
Q3 24
1.7%
79.7%
Q2 24
2.5%
59.7%
Cash Conversion
IOSP
IOSP
NFG
NFG
Q1 26
4.32×
Q4 25
1.30×
1.51×
Q3 25
3.05×
2.21×
Q2 25
0.40×
2.59×
Q1 25
0.86×
1.17×
Q4 24
4.89×
Q3 24
2.20×
Q2 24
0.15×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IOSP
IOSP

Refinery And Performance$147.0M32%
Personal Care$99.7M22%
Oilfield Services$93.1M20%
Other Fuel Specialties$47.1M10%
Other Performance Chemicals$40.0M9%
Home Care$28.7M6%

NFG
NFG

Revenues from External Customers$425.8M100%
Intersegment Revenues$126.0K0%

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