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Side-by-side financial comparison of AAON, INC. (AAON) and NORTHERN OIL & GAS, INC. (NOG). Click either name above to swap in a different company.

NORTHERN OIL & GAS, INC. is the larger business by last-quarter revenue ($610.2M vs $424.2M, roughly 1.4× AAON, INC.). AAON, INC. runs the higher net margin — 7.6% vs -11.6%, a 19.1% gap on every dollar of revenue. On growth, AAON, INC. posted the faster year-over-year revenue change (42.5% vs -72.6%). Over the past eight quarters, AAON, INC.'s revenue compounded faster (27.2% CAGR vs 4.3%).

AAON, Inc. manufactures heating, ventilation, and air conditioning equipment for commercial and industrial indoor environments. AAON is headquartered in Tulsa, Oklahoma and has manufacturing facilities in Longview, TX, Parkville, MO, and Redmond, OR. AAON employs approximately 4,000 people worldwide and has annual sales in excess of $880 million.

Marathon Oil Corporation was an American company engaged in hydrocarbon exploration. In November 2024, it was acquired by ConocoPhillips and absorbed into the company.

AAON vs NOG — Head-to-Head

Bigger by revenue
NOG
NOG
1.4× larger
NOG
$610.2M
$424.2M
AAON
Growing faster (revenue YoY)
AAON
AAON
+115.1% gap
AAON
42.5%
-72.6%
NOG
Higher net margin
AAON
AAON
19.1% more per $
AAON
7.6%
-11.6%
NOG
Faster 2-yr revenue CAGR
AAON
AAON
Annualised
AAON
27.2%
4.3%
NOG

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AAON
AAON
NOG
NOG
Revenue
$424.2M
$610.2M
Net Profit
$32.0M
$-70.7M
Gross Margin
25.9%
Operating Margin
10.4%
Net Margin
7.6%
-11.6%
Revenue YoY
42.5%
-72.6%
Net Profit YoY
29.7%
-198.7%
EPS (diluted)
$0.38
$-0.73

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
AAON
AAON
NOG
NOG
Q1 26
$610.2M
Q4 25
$424.2M
$610.2M
Q3 25
$384.2M
$556.6M
Q2 25
$311.6M
$706.8M
Q1 25
$322.1M
$602.1M
Q4 24
$297.7M
$515.0M
Q3 24
$327.3M
$753.6M
Q2 24
$313.6M
$560.8M
Net Profit
AAON
AAON
NOG
NOG
Q1 26
$-70.7M
Q4 25
$32.0M
$-70.7M
Q3 25
$30.8M
$-129.1M
Q2 25
$15.5M
$99.6M
Q1 25
$29.3M
$139.0M
Q4 24
$24.7M
$71.7M
Q3 24
$52.6M
$298.4M
Q2 24
$52.2M
$138.6M
Gross Margin
AAON
AAON
NOG
NOG
Q1 26
Q4 25
25.9%
80.4%
Q3 25
27.8%
78.7%
Q2 25
26.6%
82.8%
Q1 25
26.8%
81.1%
Q4 24
26.1%
77.4%
Q3 24
34.9%
85.8%
Q2 24
36.1%
82.0%
Operating Margin
AAON
AAON
NOG
NOG
Q1 26
Q4 25
10.4%
-5.5%
Q3 25
11.3%
-22.6%
Q2 25
7.6%
24.9%
Q1 25
10.9%
38.1%
Q4 24
9.9%
25.8%
Q3 24
20.0%
57.6%
Q2 24
21.4%
39.0%
Net Margin
AAON
AAON
NOG
NOG
Q1 26
-11.6%
Q4 25
7.6%
-11.6%
Q3 25
8.0%
-23.2%
Q2 25
5.0%
14.1%
Q1 25
9.1%
23.1%
Q4 24
8.3%
13.9%
Q3 24
16.1%
39.6%
Q2 24
16.7%
24.7%
EPS (diluted)
AAON
AAON
NOG
NOG
Q1 26
$-0.73
Q4 25
$0.38
$-0.67
Q3 25
$0.37
$-1.33
Q2 25
$0.19
$1.00
Q1 25
$0.35
$1.39
Q4 24
$0.31
$0.71
Q3 24
$0.63
$2.96
Q2 24
$0.62
$1.36

Balance Sheet & Financial Strength

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

Metric
AAON
AAON
NOG
NOG
Cash + ST InvestmentsLiquidity on hand
$13.0K
$14.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$895.0M
$2.1B
Total Assets
$1.7B
$5.4B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAON
AAON
NOG
NOG
Q1 26
$14.3M
Q4 25
$13.0K
$14.3M
Q3 25
$1.0M
$31.6M
Q2 25
$14.0K
$25.9M
Q1 25
$994.0K
$33.6M
Q4 24
$14.0K
$8.9M
Q3 24
$15.0K
$34.4M
Q2 24
$13.0K
$7.8M
Total Debt
AAON
AAON
NOG
NOG
Q1 26
Q4 25
$2.4B
Q3 25
$2.3B
Q2 25
$2.4B
Q1 25
$2.3B
Q4 24
$2.4B
Q3 24
$2.0B
Q2 24
$1.9B
Stockholders' Equity
AAON
AAON
NOG
NOG
Q1 26
$2.1B
Q4 25
$895.0M
$2.1B
Q3 25
$863.1M
$2.2B
Q2 25
$832.7M
$2.4B
Q1 25
$815.9M
$2.4B
Q4 24
$824.6M
$2.3B
Q3 24
$796.9M
$2.3B
Q2 24
$740.5M
$2.1B
Total Assets
AAON
AAON
NOG
NOG
Q1 26
$5.4B
Q4 25
$1.7B
$5.4B
Q3 25
$1.5B
$5.5B
Q2 25
$1.4B
$5.7B
Q1 25
$1.3B
$5.7B
Q4 24
$1.2B
$5.6B
Q3 24
$1.0B
$5.1B
Q2 24
$1.0B
$4.7B
Debt / Equity
AAON
AAON
NOG
NOG
Q1 26
Q4 25
1.13×
Q3 25
1.05×
Q2 25
0.98×
Q1 25
0.96×
Q4 24
1.02×
Q3 24
0.84×
Q2 24
0.91×

Cash Flow & Capital Efficiency

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

Metric
AAON
AAON
NOG
NOG
Operating Cash FlowLast quarter
$19.3M
$312.6M
Free Cash FlowOCF − Capex
$43.2M
FCF MarginFCF / Revenue
7.1%
Capex IntensityCapex / Revenue
31.5%
Cash ConversionOCF / Net Profit
0.60×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAON
AAON
NOG
NOG
Q1 26
$312.6M
Q4 25
$19.3M
$312.6M
Q3 25
$12.3M
$423.1M
Q2 25
$-21.8M
$362.1M
Q1 25
$-9.2M
$407.4M
Q4 24
$845.0K
$290.3M
Q3 24
$63.8M
$385.8M
Q2 24
$35.5M
$340.5M
Free Cash Flow
AAON
AAON
NOG
NOG
Q1 26
$43.2M
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
FCF Margin
AAON
AAON
NOG
NOG
Q1 26
7.1%
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Capex Intensity
AAON
AAON
NOG
NOG
Q1 26
31.5%
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Cash Conversion
AAON
AAON
NOG
NOG
Q1 26
Q4 25
0.60×
Q3 25
0.40×
Q2 25
-1.41×
3.64×
Q1 25
-0.31×
2.93×
Q4 24
0.03×
4.05×
Q3 24
1.21×
1.29×
Q2 24
0.68×
2.46×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AAON
AAON

AAON Oklahoma$215.5M51%
Bas X$106.1M25%
AAON Coil Products$102.6M24%

NOG
NOG

Oil and Gas Sales$447.7M73%
Gain on Commodity Derivatives, Net$159.3M26%
Other Revenue$3.1M1%

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