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AAON

aaon · NASDAQ Industrials
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Ticker aaon
Exchange NASDAQ
Sector Industrials
Industry Construction
Employees 1001-5000
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FY2006 Annual Report · AAON
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As our cover reveals, AAON total share holder return increased by  

1,166 percent for a 10-year period that ended on December 31, 2006. 

An investment of $10,000 made in AAON stock 10 years ago 

would have had a value of $126,600 at the end of 2006.

The NASDAQ Composite total return for the 

same period was only 89 percent.

Now, we have prepared ourselves 

to ascend even higher.

Net sales at the end of 2006 soared to $231.5 million.

Company
Profile

Outdoor Air Handling Units

Indoor Air Handling Units

RM Series

RL Series

H2 Series

Financial 
Highlights

HB Series

RN Series

M2 Series

M3 Series

F1 Series

V2 Series

Condensing Units

Boiler

Chillers

CL Series

CA/CC Series

CB Series

BL Series

LL Series Air-Cooled

LL Series Evaporative-Cooled

Rooftop Units

Custom Units

RL Series

RN Series

RM Series

HB Series

MN Series

DT Series

NJ Series

AAon is engAged in the engineering, mAnufActuring, mArketing And sAles of Air conditioning And heAting equipment consisting 

of residentiAl And commerciAl semi-custom And custom products, including: Air hAndling units, condensing units, chillers, 
rooftop units, mAke-up Air units, heAt recovery units And coils.

since the founding of AAon in 1988, AAon hAs mAintAined A commitment to design, develop, mAnufActure And deliver heAting 

And cooling products to perform beyond All expectAtions And demonstrAte the vAlue of AAon to our customers.

AAon provides specific And unique solutions for individuAl customer requirements.

Functionality — AAON equipment is designed and manufactured to 

EasE oF installation — Complete factory installation and testing of 

meet each customer’s particular requirements.

all selected features eliminates the uncertainties and additional cost 

EnErgy EFFiciEncy — All AAON equipment is designed with highest 

associated with field installation of add-on components.

energy efficiency in mind.

EnvironMEntally rEsponsiblE — All AAON cooling and heat pump 

EasE oF MaintEnancE — AAON equipment is designed from concept to 

equipment is designed for operation with an environmentally friendly 

completion with minimum service time as a primary factor.

refrigerant.

Income Data ($000)

Net Sales

Gross Profit 

Operating Income

Interest Expense
Interest Income
Depreciation
Pre-Tax Income
Net Income
Earnings Per Share

(Basic)1
(Diluted)1

Balance Sheet ($000)
Working Capital
Current Assets
Net Fixed Assets
Accumulated Depreciation
Cash & Cash Investment
Total Assets
Current Liabilities2
Long-Term Debt2
Stockholders’ Equity
Stockholders’ Equity per Diluted Share3

Funds Flow Data ($000)
Operations
Investments
Financing
Net Increase (Decrease) in Cash
Ratio Analysis
Return on Average Equity

Return on Average Assets

Pre-Tax Income on Sales

Net Income on Sales

Total Liabilities to Equity 
Quick Ratio4

Current Ratio2

Year-End Price Earnings Ratio

 2006 

2005

2004

2003

2002

 $231,460 

 $185,195 

 $171,885 

 $147,890 

 $154,141 

 $43,890 

 $25,831 

 $81 
 $24 
 $9,146 
 $26,198 
 $17,133 
 $1.39 
 $1.35 

 $36,356 
 $70,759 
 $59,222 
 $54,182 
 $288 
 $130,056 
 $34,403 
 $- 
 $91,592 
 $7.24 

 $19,428 
 $(16,781)
 $(3,333)
 $(549)

20.0%

13.2%

11.3%

7.4%

0.4 
1.1 

2.1 

20 

 $35,291 

 $17,814 

 $16 
 $67 
 $8,503 
 $18,332 
 $11,462 
$0.93 
$0.90 

 $33,372 
 $62,950 
 $50,581 
 $45,062 
 $1,837 
 $113,606 
 $29,578 
 $59 
 $79,495 
$6.23 

 $11,966 
 $(8,189)
 $(4,200)
 $(157)

15.2%

10.1%

9.9%

6.2%

0.4 
1.2 

2.1 

20 

 $26,864 

 $11,650 

 $38 
 $183 
 $5,732 
 $12,379 
 $7,521 
$0.60 
$0.58 

 $27,939 
 $55,998 
 $49,229 
 $37,017 
 $3,994 
 $105,227 
 $28,059 
 $167 
 $71,171 
$5.51 

 $16,159 
 $(11,741)
 $(9,857)
 $(5,192)

10.9%

7.3%

7.2%

4.4%

0.5 
1.1 

2.0 

28 

 $35,885 

 $20,976 

 $21 
 $346 
 $5,435 
 $21,853 
 $14,227 
$1.12 
$1.07 

 $35,369 
 $64,635 
 $37,450 
 $31,285 
 $16,186 
 $102,085 
 $29,266 
 $- 
 $67,428 
$5.09 

 $16,469 
 $(7,626)
 $(7,728)
 $1,115 

21.9%

14.7%

14.8%

9.6%

0.5 
1.3 

2.2 

18 

 $37,549 

 $22,478 

 $95 
 $214 
 $4,915 
 $23,110 
 $14,611 
$1.11 
$1.06 

 $21,149 
 $46,482 
 $35,231 
 $27,114 
 $15,071 
 $91,713 
 $25,333 
 $- 
 $62,310 
$4.53 

 $21,931 
 $(16,118)
 $(1,865)
 $3,948 

26.0%

17.4%

15.0%

9.5%

0.5 
1.5 

1.8 

17 

1 Reflects 3–for–2 stock splits in June 2002. 2 Reflects reclassification of revolving loan from long-term debt to current liabilities for the year 2002.
3 Actual dollars and diluted number of shares for all years reflect both 3–for–2 stock splits. 4 Cash, cash investments + receivables/current liabilities.

   
Dear Shareholder,

Our Company attained record levels in both 
sales and earnings this past year. This was due 
to a number of factors. Firstly, we witnessed 
continuing strength in new office, commercial and 
manufacturing plant construction throughout the 
year. That, combined with moderating raw material 
prices, aided our gross profits. The costs relating to 
Sarbanes-Oxley compliance, which had increased 
significantly during 2004 and 2005, moderated 
during 2006 remaining at the previous year’s level. 
Finally, our custom manufacturing business began 
to exhibit the beneficial impact of the steps taken a 
year earlier, the most important being the installation 
of certain software systems. These systems enabled 
the Company to analyze the costs and material 
content of its backlog. The end result was more 
realistic pricing. While our custom business still did 
not attain a satisfactory level of profitability on a full 
year basis, good improvement was noted during 
the final half of the year. We expect our custom 
manufacturing effort will continue to show increasing 
progress throughout this current year.

In 2006, total nonresidential construction rose 13.3% 
to $558.8 billion from $493.1 billion, aided by the 
aforementioned gains in office and commercial 
construction which increased 14.4% and 9.8% 
respectively, as well as manufacturing construction 
which climbed 19.8%. The educational, healthcare 
and other markets continued to perform exceedingly 
well, while the retail segment witnessed a modestly 
improved performance. Benefiting from strong 
demand for our larger tonnage units (over 30 tons), 
the Company achieved a 25.0% increase in total 
sales to $231.5 million from $185.2 million. Gross 

President’s Letter
Norman H. Asbjornson 
President/CEO

profits gained primarily as a result of higher sales, 
rising 24.4% to $43.9 million (19.0% of sales) from 
$35.3 million (19.1% of sales). SG&A expenses as 
a percentage of sales were 7.8% or $18.1 million 
as compared with 9.4% or $17.5 million. Operating 
income climbed 45.0% to $25.8 million or 11.1% of 
sales from $17.8 million or 9.6% of sales. Net income, 
benefiting from a lower tax rate (34.6% vs. 37.5%), 
advanced to $17.1 million or $1.35 per share from 
$11.5 million or $0.90 per share. Earnings per share 
calculations are based upon 12.7 million fully diluted 
shares outstanding in 2006 and 12.8 million shares in 
2005.

Strong Financial Condition
We completed the year in solid financial condition. At 
December 31, 2006, total current assets were $70.8 
million with a current ratio of 2.1:1. We were able to 
maintain our liquid position despite $17.8 million of 
capital expenditures and a dividend payout of $2.5 
million in the form of a semi-annual dividend of $0.20 
per share, while having minimal long-term debt. It 
should be noted that in October 2002, the Company 
initiated a stock repurchase program, authorizing the 
purchase of up to 1.3 million shares or approximately 
10% of the shares outstanding. Through December 
31, 2005, AAON spent $22.0 million and purchased 
1,257,864 shares. On February 14, 2006, the stock 
repurchase program was suspended as the Board 
of Directors voted to initiate the semi-annual cash 
dividend. Total shareholders’ equity improved to 
$91.6 million (up 15.2%), equal to $7.21 per share 
compared to $79.5 million or $6.21 per share a year 
earlier. In 2006, our return on average shareholders’ 
equity was 20%, up from 15.2% in 2005. Our order 
backlog at March 31, 2007, was $59.3 million, as 
compared with $47.6 million at March 31, 2006.

Capital Expenditures
Over the past five years we have spent approximately 
$58 million on capital improvements to satisfy 
the anticipated demand for our new and existing 
products. In the past year these expenditures reached 
a record $17.8 million. We increased our sheet 
metal fabricating and coil manufacturing production 
as well as our plant capacity. At the end of 2006, 
our combined manufacturing capabilities could 
accommodate annual volume in the range of $375-
425 million depending upon our product mix. Our 
plant capacity is presently $700-800 million, including 
space presently leased out. For 2007, we estimate 
capital expenditures in the area of $10-12 million. 
We intend to further increase sheet metal and coil 
manufacturing capabilities and our plant capacity to 
accommodate the new air handler product line.

We continue to take significant steps to strengthen 
our position as one of the most technologically 
innovative companies in the industry. During the past 
three years we have spent $4.7 million on research, 
development and R&D engineering. Our growing 
share of the market in which we operate verifies the 
recognition of our efforts.

Ten Year Review
During the past ten years, we have substantially 
broadened our product line and significantly 
diversified our customer base. In 1997, our 
manufacturers’ representative network was 
responsible for approximately 40% of total sales 
or $32 million. At the end of 2006, there were 112 
representatives who contributed over 90% of sales 
or about $209 million. It is important to note that, 
in 1997, sales to our four largest customers were 
approximately $27 million or about one-third of total 

2006 Annual Report

RM Series

sales. In 2006, no one customer contributed more 
than 5% of total sales and our four largest customers 
accounted for less than 15% of total sales.

Over the past decade total sales have climbed 
183.4% to $231.5 million from $81.7 million, which 
represents an average annual growth rate of 18.3%. 
Net income advanced from $3.0 million to $17.1 
million or a gain of 470%, for an average of 47% 
annually. Earnings per share, calculated on 12.7 
million fully diluted shares (reflecting two 3 for 2 stock 
splits), have grown from $0.24 to $1.35 per share.

For the past decade, our physical growth has been 
equally impressive and is reflected in our balance 
sheet comparisons. In 1997, the combined (Tulsa, 
Oklahoma and Longview, Texas) manufacturing and 
office space totaled 496,000 sq. ft. At the end of 1997, 
the $5.1 million purchase of a 40-acre tract of land 
across from the existing Tulsa facility, which included 
a 457,000 square foot manufacturing/warehouse 
building and a 22,000 square foot office building, 
more than doubled the Company’s plant and office 
capacity. At that time, AAON leased out over 90% of 
the newly acquired facilities. By December 31, 2006, 
the Company owned more than 1.2 million square 
feet of manufacturing, warehouse and office capacity 
(including Longview, Texas and the Burlington, 
Ontario facility). The property acquired in 1997 has 
been expanded to 563,000 square feet and is 39% 

utilized by AAON, with the remaining 61% leased to a 
third party.

RN Series

At the end of 1997, the Company reported $16.6 
million and $42.8 million of net fixed assets and total 
assets, respectively. By December 31, 2006, net fixed 
assets had grown by 256.6% to $59.2 million, while 
total assets increased by 204.0% to $130.1 million. 
Over the past 10 years, shareholders’ equity has 
climbed 384.7% to $91.6 million or $7.21 per share 
from $18.9 million or $1.49 per share (calculated 
on 12.7 million shares, reflecting two 3 for 2 stock 
splits). In 1997, the long-term debt stood at $12.9 
million while the long-term debt to total equity was 
40.6%. For the past five years we 
have operated with little or no 
debt. Our financial condition 
over the past 10 years 
has greatly improved. This 
was accomplished despite 
capital expenditures of $85.2 
million and two stock buyback 
programs amounting to $41.6 
million in which we purchased 3.2 million shares of 
common stock or approximately 25.2% of the shares 
outstanding. Furthermore, our $0.20 per share semi-
annual dividend policy initiated in early 2006, gives 
clear evidence of our confidence in AAON’s future 
growth and the ongoing strength of our financial 
condition. The Company’s past record has not gone 
unnoticed. The purchase of 100 shares of stock on 
January 2, 1997, would have cost $211. At December 
31, 2006, the value of the purchase amounted 
to $2,628 (reflecting two 3 for 2 stock splits and 
dividends), which represents a gain of 1,166%. 

2006 Annual Report

assemblies operate without drive belts, eliminating 
the need to adjust or replace fan belts. Furthermore, 
this product operates with our new airfoil backward 
inclined fan which creates greater efficiency than the 
traditional fan design. The end result is a significant 
reduction in the use of electricity to power the 
products.

We continue to pursue a policy of product 
diversification utilizing our technologically innovative 
expertise. In 2003, we introduced the LL Series chiller, 
a never before offered packaged chiller. All models 
feature a full height, two inch thick foam insulated 
double- wall cabinet. These chillers can be provided 
with factory 
engineered boiler 
and pumping 
packages, 
eliminating 
the need for 
a mechanical 
room. The chiller 
product utilizes the 
environmentally 
friendly R-410A 
refrigerant, while 
the patented 
evaporative-cooled 

The demands to 
manufacture products 
which adhere to 
regulatory mandates 
regarding the 
environment and are 
more energy efficient 
has led to a complete 
redesign of our existing 
product line and the 
introduction of products 
which gives us entrance 
into new markets.

Meeting our Social Responsibilities
The demands to manufacture products which adhere 
to regulatory mandates regarding the environment 
and are more energy efficient has led to a complete 
redesign of our existing product line and the 
introduction of products which gives us entrance 
into new markets. The RM and RN series of unitary 
rooftop products (2-70 tons of cooling capacity) 
contributed approximately 75% of total sales this past 
year. The foamed version of the RL series (40-230 
tons of cooling capacity) was introduced just three 
years ago. The industry response to this product line 
has been excellent and in 2006 our entire rooftop 

line of products contributed about 85% 

of total sales. The increasing 
demand for these products 
can be attributed to a number 
of factors. All three series are 
designed to use  
R-410A, an environmentally 
friendly refrigerant. Effective in 
2010, the EPA has mandated 
that all manufactured HVAC 
equipment must use refrigerants that 
do not contain chlorine, thereby reducing the effect of 
ozone in the atmosphere. In addition, the RN and RL 
lines are manufactured using double wall composite 
foam panels for their cabinets. AAON has become an 
industry leader in this manufacturing process. 
The use of foam rather than fiberglass 
creates a product which is lighter, more cost 
efficient and a better insulator. By the end of 
2008, the complete RM series of products 
will be manufactured using this process for 
its cabinets. Finally, the RL and RN lines are 
manufactured using our direct drive blower 
assemblies introduced in 2005. These 

RL Series





 
condenser promotes energy savings of 20-40% over 
comparable air-cooled models. We estimate the chiller 
market segment we are addressing to be about $800 
million annually.

The introduction of packaged water chillers and our 
expertise in the manufacturing of double-wall foam 
panels for cabinets made for a simple extension into 
the air-handler market. By the middle of this year our 
Tulsa facility will begin to manufacture a modular and 
semi-custom line of air-handler. The M2 and M3 Series 
of products will operate with the highly efficient direct 
drive blower assemblies, have double-wall cabinet 
construction, and will allow for significant customization. 
These products can be installed either outdoors or 
indoors. We estimate the air-handler segment of the 
commercial market to be in the vicinity of $1.4 billion.

Sales Representatives’ Performance
Ten years ago we initiated a concerted effort to 

diversify our customer mix, thereby reducing our 
vulnerability to any potential reduction or loss of sales 
to a major national account. The sales representatives 
have been primarily responsible for the diversification 
of our sales mix and a significant catalyst for our 
sales growth. At the end of 2006, the representatives’ 
network had 110 offices in all 50 states and 10 
provinces of Canada. This sector produced a gain of 
32.9% to $209.0 million or 90.3% of total corporate 
sales. In 2005, representatives’ sales were $157.3 
million or 85.0% of total corporate sales. The 
Company’s aggressive posture regarding new product 
introductions for additional HVAC market segments 
will allow our manufacturers’ representatives entrance 
into new markets producing significant incremental 
sales. Furthermore, we expect to begin to accelerate 
our custom manufacturing efforts which will allow the 
representatives to pursue the rooftop, air handling 
and chiller markets that were previously not available 
to them. We believe the manufacturers’ representative 

network will continue to provide a major contribution 
to AAON’s future growth.

Our Employees
The ongoing success of our Company can be directly 
attributed to our employees. To that end we have 
created a number of programs which provide for 
financial enhancement, vocational enrichment and 
health care needs.

The Company’s retirement program acts as an 
incentive for employee retention as well as providing 
an opportunity for retirement preparation. In 2004, 
we made changes to our 401(k) plan to stimulate the 
motivation for employees to remain with AAON. We 
reduced the eligibility period from one year to the first 
day of employment so that employees who participate 
in the 401(k) plan can begin to earn matching funds 
immediately. However, the Company’s contributions 
remain subject to the original vesting period so the 

employee must stay with the company at least two 
years to be entitled to any portion of the funds. In 
addition, we increased the Company’s matching 
contribution to a maximum of 3.5% of compensation 
based upon a 50% matching rate. This results in 
a 10.5% saving rate for retirement that is within a 
range widely recommended by financial advisors 
for retirement planning. Matching contributions by 
AAON have increased from $0.5 million in 2004 to 
$1 million in 2006 largely as a result of increased 
participation and employment. Lastly, we initiated 
automatic enrollment of eligible employees and 
automatic increases on an annual basis to encourage 
increased participation. While all Company funds are 
initially contributed in the form of cash which is used to 
purchase AAON stock on the open market, employees 
are able to diversify these contributions after their first 
vesting date. Since 2004, the Company has purchased 
246,551 shares from the plan for a total cost of 
$5.2 million and the plan now holds over 3% of the 

The ongoing success of our Company can                     be directly attributed to our employees.

August
AAON, an 
Oklahoma 
corporation,  
was founded.

Spring
AAON purchased, renovated and moved 
into a 184,000 square foot plant in Tulsa, 
Oklahoma.

Introduced a new product line of rooftop 
heating and air conditioning units 2-140 
tons.

December
Formed AAON Coil Products, 
a Texas Corporation, as a 
subsidiary to AAON, Inc. (Nevada) 
and purchased coil making 
assets of Coils Plus.

September
One-for-four reverse stock 
split. Retired $1,927,000 of 
subordinated debt.

November
Listed on the NASDAQ 
National Market System.

January
Introduced 
a desiccant 
heat recovery 
wheel option 
available on all 
AAON rooftop 
units.

September
Completed 
expansion 
of the Tulsa 
facility to 
332,000  
square feet.

April
AAON received U.S. patent for 
Blower Housing assembly.

October
U.S. patent granted to AAON 
for air conditioner with energy 
recovery heat wheel.

Spring
Completed Tulsa, 
Oklahoma, and Longview, 
Texas, plant additions 
yielding a total exceeding 
one million square feet.

June
3-for-2 
stock 
split.

Fall
Industry introduction of the 
modular air handler and chiller 
products.

May
Purchase of 
the assets of 
Air Wise, of 
Mississauga, 
Ontario, 
Canada.

November
Introduction 
of light 
commercial/
residential 
product 
lines.

April 2006
AAON introduces 
factory engineered 
and assembled 
packaged 
mecanical 
room, which 
includes a boiler 
and all piping 
and pumping 
accessories.

1988   |   1989   |   1990   |   1991   |   1992   |   1993   |   1994   |   1995   |   1996   

1997   |   1998   |   1999   |   2000   |   2001   |   2002   |   2003   |   2004   |   2005   |   2006

September
Purchase of 
John Zink Air 
Conditioning 
Division.

Summer
Became a publicly traded 
company with the reverse 
acquisition of Diamond 
Head Resources (now 
“AAON, Inc.”), a Nevada 
corporation.

December
Listed on NASDAQ 
Small Cap—
Symbol “AAON.”

Spring
AAON Coil Products purchased, 
renovated and moved into a 
110,000 square foot plant in 
Longview, Texas.

March
Purchase of property with 
26,000 square foot building 
adjacent to AAON Coil 
Products plan in Longview, 
Texas. Issued a 10% stock 
dividend.

November
AAON yearly 
shipments exceed 
$100 million. 
Received U.S. patent 
for Dimpled Heat 
Exchanger Tube.

December
Purchased 
40 acres with 
457,000 square 
foot plan and 
22,000 square 
foot office 
space located 
across from 
Tulsa facility.

Fall
Expanded rooftop 
product line to 230 
tons. Introduced 
evaporative 
condensing energy 
savings feature. 3-
for-2 stock split.

October
AAON, listed in FORBES 
Magazine’s “Hot Shots 200 
Up & Comers.”

July
AAON added as a member of 
the Russell 2000® Index.

July
Started production 
of polyurethane 
foam-filled double-
wall construction 
panels for rooftop 
and chiller 
products using 
newly purchased 
manufacturing 
equipment.

August
AAON received U.S. 
Patent for Plenum Fan 
Banding.

June
Initiation of a 
semi-annual 
cash dividend 
for AAON 
shareholders.

Company’s shares. We believe that by helping employees 
properly prepare for their future needs, they are better 
able to focus on their job responsibilities.
In an effort to address the present health care needs of 
our employees, we provide a health insurance program 
focused upon wellness, prevention and care of chronic 
conditions. Beginning in 2005, we offered access to a 
Health Risk Assessment program to allow our domestic 
employees to better understand their particular needs 
and to help them determine the correct approach to 
solving their concerns. We established on-site clinics at 
our domestic facilities and have staffed them with part-
time physicians to provide for convenient basic care while 
offering easy access to professionals who can help them 
with questions pertaining to their health. We continue 
to look for means by which we can improve employee 
involvement in the health cost management process 
and to encourage personal responsibility for health risk 
reduction. Aggressive management of our health program 
has allowed us to maintain competitive plan costs while 
promoting the wellness of our employees.

From the perspective of both the financial impact and 
the number of people involved, our largest employee 
motivational tool is our Profit Sharing program. For 
employees who work a complete calendar quarter, we 
distribute 10% of the Company’s pre-tax earnings. This 
bonus is calculated at the operating subsidiary level. In 
the past year, the Company distributed $3.3 million to its 
employees compared to $2.1 million in 2005. The average 
eligible employee received over $2,000 during 2006. We 
believe Profit Sharing has motivated our employees to 
focus upon the overall profitability of the Company.

on-site and off-site facilities. We provide a variety of 
industry-specific training at our plants through our own 
personnel and via outside advisors who prepare and 
present the necessary information during hands-on 
classes. We also encourage the pursuit of a broader 
range of skills through our tuition reimbursement 
program. By supporting the educational and vocational 
growth of our employees, we intend to develop 
knowledgeable personnel who can be promoted through 
the Company and provide AAON with a deep pool of 
talent. We believe our efforts in these areas will benefit 
our shareholders through increased profitability.

Outlook
I am confident that the Company can show further 
progress this year and into the future. We are devoted 
to meeting the demands of our customers and 
government regulators to manufacture technologically 
innovative products which are more energy efficient and 
environmentally friendly. We will continue to expend the 
capital and the effort to achieve these goals. 

Our earlier successes and future endeavors can and will 
be directly attributed to the confidence and cooperation 
of our loyal customers, sales representatives and 
shareholders as well as the dedication of our 
outstanding employees, all of whose names appear 
at the end of this report. The Board of Directors and 
I want to thank all of you for your past and continuing 
commitment to the Company.

Sincerely,

The attainment of performance objectives requires an 
appropriate set of skills. In order to obtain the necessary 
skills, we support continuing training through both 

Norman H. Asbjornson
President & CEO
April 13, 2007

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

3
[    ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 134

For the fiscal year ended December 31, 2006

or

[    ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 134

For the transition period from _____________________________ to _____________________________

Commission file number:  0-18953

AAON, INC.
(Exact name of registrant as specified in its charter)

Nevada 
(State or other jurisdiction 
of incorporation or organization) 

2425 South Yukon, Tulsa, Oklahoma 
(Address of principal executive offices) 

87-0448736
(IRS Employer
Identification No.)

74107
(Zip Code)

Registrant’s telephone number, including area code:  (918) 583-2266

Securities registered pursuant to Section 12(g) of the Act:

Common Stock, par value $.004
(Title of Class)
Rights to Purchase Series A Preferred Stock
(Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.   

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of
the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, 
and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated
by reference in Part III of this Form 10-K or any amendment to this Form 10-K. 

¨      

Yes          No

3

Yes          No

3

Yes          No

3

3

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer (as defined in Rule 
12b-2 of the Securities Exchange Act of 1934). 

Large accelerated filer  

Accelerated filer 

3

Non-accelerated filer 

Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Act. 

Yes          No

3

The aggregate market value of the common equity held by non-affiliates computed by reference to the closing price of registrant’s 

common stock on the last business day of registrant’s most recently completed second quarter (June 30, 2006) was $245,000,000.

As of February 28, 2007, registrant had outstanding a total of 12,334,677 shares of its $.004 par value Common Stock.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of registrant’s definitive Proxy Statement to be filed in connection with the Annual Meeting of Stockholders

to be held May 22, 2007, are incorporated into Part III.

 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

TABLE OF CONTENTS

PART I

Item Number and Caption 

PART I

1.  Business. 

1A.  Risk Factors. 

1B.  Unresolved Staff Comments. 

2.  Properties. 

3. 

Legal Proceedings. 

4.  Submission of Matters to a Vote of Security Holders. 

PART II

5.  Market for Registrant’s Common Equity, Related Stockholder Matters and 

    Issuer Purchases and Equity Securities. 

6.  Selected Financial Data. 

7.  Management’s Discussion and Analysis of Financial Condition

and Results of Operations. 

7A.  Quantitative and Qualitative Disclosures About Market Risk. 

8.  Financial Statements and Supplementary Data. 

9.  Changes in and Disagreements with Accountants on Accounting

and Financial Disclosure. 

9A.  Controls and Procedures. 

9B.  Other Information. 

PART III

10.  Directors, Executive Officers and Corporate Governance. 

11.  Executive Compensation. 

12.  Security Ownership of Certain Beneficial Owners and Management

and Related Stockholder Matters. 

13.  Certain Relationships and Related Transactions. 

14.  Principal Accountant Fees and Services. 

PART IV

15.  Exhibits, Financial Statement Schedules. 

Page
Number

Item 1.  Business.

1

4

6

6

6

6

7

9

10

18

19

19

19

21

22

22

22

22

23

24

General Development and Description of Business
AAON, Inc., a Nevada corporation, was incorporated on August 18, 1987.

The Company (including its subsidiaries) is engaged in the manufacture and sale of air-conditioning and heating 
equipment consisting of standardized and custom rooftop units, chillers, air-handling units, make-up air units, heat 
recovery units, condensing units, coils and boilers.

Products and Markets
The Company’s products serve the commercial and industrial new construction and replacement markets. To date 
virtually all of the Company’s sales have been to the domestic market, with foreign sales accounting for less than 
5% of its sales in 2006.

The rooftop and condenser markets consist of units installed on commercial or industrial structures of generally 
less than 10 stories in height. Air-handling units, chillers, coils and boilers are applicable to all sizes of commercial 
and industrial buildings.

The size of these markets is determined primarily by the number of commercial and industrial building completions. 
The  replacement  market  consists  of  products  installed  to  replace  existing  units/components  that  are  worn  or 
damaged. Historically, approximately half of the industry’s market has consisted of replacement units.

The  commercial  and  industrial  new  construction  market  is  subject  to  cyclical  fluctuations  in  that  it  is  generally 
tied to housing starts, but has a lag factor of 6-18 months. Housing starts, in turn, are affected by such factors 
as interest rates, the state of the economy, population growth and the relative age of the population. When new 
construction is down, the Company emphasizes the replacement market.

Based on its 2006 level of sales of approximately $231 million, the Company estimates that it has a 13% share 
of the rooftop market and a 1% share of the coil market. Approximately 55% of the Company’s sales now come 
from new construction and 45% from renovation/replacements. The percentage of sales for new construction vs. 
replacement to particular customers is related to the customer’s stage of development. 

The Company purchases certain components, fabricates sheet metal and tubing and then assembles and tests 
its finished products. The Company’s primary finished products consist of a single unit system containing heating, 
cooling  and/or  heat  recovery  components  in  a  self-contained  cabinet,  referred  to  in  the  industry  as  “unitary” 
products. The Company’s other finished products are coils consisting of a sheet metal casing with tubing and fins 
contained therein, air-handling units consisting of coils, blowers and filters, condensing units consisting of coils, 
fans and compressors, which, with the addition of a refrigerant-to-water heat exchanger, become chillers, make-
up air units, heat recovery units and boilers consisting of boilers and a sheet metal cabinet.

With regard to its standardized products, the Company currently has five groups of rooftop units: its HB Series 
consisting of four cooling sizes ranging from two to five tons; its RM and RN Series offered in 21 cooling sizes 
ranging from two to 70 tons; its RL Series, which is offered in 15 cooling sizes ranging from 40 to 230 tons; and its 
HA Series, which is a horizontal discharge package for either rooftop or ground installation, offered in eight sizes 
ranging from seven and one-half to 50 tons. The Company also produces customized rooftop products with direct 
(MN Series) and indirect (DT Series) heating in sizes as required.

1

 
 
 
 
 
2006 Annual Report

2006 Annual Report

The Company manufactures a Model LL chiller, which is available in both air-cooled condensing and evaporative 
cooled configurations.

The  Company’s  air-handling  units  consist  of  the  H/V  Series,  the  modular  (M2)  Series  and  a  customized  NJ 
Series. 

The Company’s heat recovery option applicable to its RM, RN and RL units, as well as its M2 and NJ Series air 
handlers, respond to the U.S. Clean Air Act mandate to increase fresh air in commercial structures. The Company’s 
products are designed to compete on the higher quality end of standardized products.

Performance characteristics of its products range in cooling capacity from 28,000-4,320,000 BTU’s and in heating 
capacity from 69,000-6,000,000 BTU’s. All of the Company’s products meet the Department of Energy’s efficiency 
standards, which define the maximum amount of energy to be used in producing a given amount of cooling.

A typical commercial building installation requires a ton of air-conditioning for every 300-400 square feet or, for a 
100,000 square foot building, 250 tons of air-conditioning, which can involve multiple units.

The Company has developed and is beginning to market a residential condensing unit (CB Series) and air-handlers 
(F1 Series) as well as boilers (BL Series). 

The Company’s products and sales strategy focus on “niche” markets. The targeted markets for its equipment 
are  customers  seeking  products  of  better  quality  than  offered,  and/or  options  not  offered,  by  standardized 
manufacturers.

To support and service its customers and the ultimate consumer, the Company provides parts availability through 
eight independent parts distributors and has factory service organizations at each of its plants. Also, a number of 
the manufacturer representatives utilized by the Company have their own service organizations, which, together 
with the Company, provide the necessary warranty work and/or normal service to customers.

The Company’s warranty on its products is: for parts only, the earlier of one year from the date of first use or 14 
months from date of shipment; compressors (if applicable), an additional four years; on gas-fired heat exchangers 
(if applicable), 15 years; and on stainless steel heat exchangers (if applicable), 25 years.

Research and Development
All R&D activities of the Company are company-sponsored, rather than customer-sponsored. R&D has involved 
the HB, RM, RN, RL, NJ, DT and MN (rooftop units), LL (chillers), CB (condensing units), F1 (air handlers) and 
BL (boilers), as well as component evaluation and refinement, development of control systems and new product 
development. The Company incurred research and development expenses of $1,974,000 in 2006, $1,681,000 in 
2005 and $1,072,000 in 2004.

Major Customers
The Company’s largest customer last year was Wal-Mart Stores, Inc. Sales to Wal-Mart accounted for less than 
10% of total sales in 2006 and 2005, and were 14% of total sales in 2004. The Company has no written contract 
with this customer.

Backlog
The Company had a current backlog as of March 1, 2007, of $62,798,000, compared to $48,597,000 at March 1, 
2006. The current backlog consists of orders considered by management to be firm and substantially all of which 
will be filled by August 1, 2007; however, the orders are subject to cancellation by the customers.

In order to diversify its customer base, the Company has added to and/or upgraded its sales representation in 
various markets.

Sources and Availability of Raw Materials
The most important materials purchased by the Company are steel, copper and aluminum, which are obtained 
from domestic suppliers. The Company also purchases from other domestic manufacturers certain components, 
including  compressors,  electric  motors  and  electrical  controls  used  in  its  products.  The  Company  endeavors 
to  obtain  the  lowest  possible  cost  in  its  purchases  of  raw  materials  and  components,  consistent  with  meeting 
specified quality standards. The Company is not dependent upon any one source for its raw materials or the major 
components of its manufactured products. By having multiple suppliers, the Company believes that it will have 
adequate sources of supplies to meet its manufacturing requirements for the foreseeable future.

The Company attempts to limit the impact of increases in raw materials and purchased component prices on its 
profit margins by negotiating with each of its major suppliers on a term basis from six months to one year. However, 
in each of the last three years cost increases in basic commodities, such as steel, copper and aluminum, severely 
impacted profit margins.

Distribution
The  Company  employs  a  sales  staff  of  14  individuals  and  utilizes  approximately  87  independent  manufacturer 
representatives’  organizations  having  104  offices  to  market  its  products  in  the  United  States  and  Canada.  The 
Company also has one international sales organization, which utilizes 12 distributors in other countries. Sales are 
made directly to the contractor or end user, with shipments being made from the Company’s Tulsa, Oklahoma, 
Longview, Texas, and Burlington, Ontario, Canada plants to the job site. Billings are to the contractor or end user, 
with a commission paid directly to the manufacturer representative.

Working Capital Practices 
Working capital practices in the industry center on inventories and accounts receivable. The Company regularly 
reviews its working capital with a view to maintaining the lowest level consistent with requirements of anticipated 
levels of operation. The Company’s greatest needs arise during the months of July-November, the peak season for 
inventory (primarily purchased material) and accounts receivable. The Company’s working capital requirements are 
generally met by cash flow from operations and a bank revolving credit facility, which currently permits borrowings 
up to $15,150,000. The Company believes that it will have sufficient funds available to meet its working capital 
needs for the foreseeable future. The Company expects to renew its revolving credit agreement in July 2007.

Seasonality
Sales of the Company’s products are moderately seasonal with the peak period being July-November of each 
year.

Competition
In the standardized market, the Company competes primarily with Trane Company, a division of American Standard, 
Inc., Carrier Corporation, a subsidiary of United Technologies Corporation, Lennox International, Inc., and York, 
a division of Johnson Controls. All of these competitors are substantially larger and have greater resources than 
the Company. In the custom market, the Company competes with many larger and smaller manufacturers. The 
Company competes on the basis of total value, quality, function, serviceability, efficiency, availability of product, 
product line recognition and acceptability of sales outlet. However, in new construction where the contractor is the 
purchasing decision maker, the Company often is at a competitive disadvantage on sales of its products because 
of the emphasis placed on initial cost; whereas, in the replacement market and other owner-controlled purchases, 
the Company has a better chance of getting the business since quality and long-term cost are generally taken into 
account.



3

2006 Annual Report

2006 Annual Report

Employees
As of March 1, 2007, the Company had 1,368 employees and 73 temporaries, none of whom is represented by 
unions. Management considers its relations with its employees to be good.

Patents, Trademarks, Licenses and Concessions
The Company does not consider any patents, trademarks, licenses or concessions held by it to be material to its 
business operations, other than patents issued regarding its heat recovery wheel option, blower, gas-fired heat 
exchanger and evaporative condenser desuperheater.

Environmental Matters
Laws concerning the environment that affect or could affect the Company’s domestic operations include, among 
others, the Clean Water Act, the Clean Air Act, the Resource Conservation and Recovery Act, the Occupational 
Safety  and  Health  Act,  the  National  Environmental  Policy  Act,  the  Toxic  Substances  Control  Act,  regulations 
promulgated under these Acts, and any other federal, state or local laws or regulations governing environmental 
matters.  The  Company  believes  that  it  presently  complies  with  these  laws  and  that  future  compliance  will  not 
materially adversely affect the Company’s earnings or competitive position.

Available Information
The  Company’s  Internet  website  address  is  http://www.aaon.com.  Its  annual  reports  on  Form  10-K,  quarterly 
reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant 
to Section 13(a) or 15(d) of the Exchange Act of 1934 will be available through the Company’s Internet website as 
soon as reasonably practical after the Company electronically files such material with, or furnishes it to, the SEC.

Item 1A.  Risk Factors.

The following risks and uncertainties may affect the Company’s performance and results of operations.

Our business can be hurt by an economic downturn.
Our business is affected by a number of economic factors, including the level of economic activity in the markets in 
which we operate. A decline in economic activity in the United States could materially affect our financial condition 
and results of operations. Sales in the commercial and industrial new construction markets correlate closely to the 
number of new homes and buildings that are built, which in turn is influenced by cyclical factors such as interest 
rates, inflation, consumer spending habits, employment rates and other macroeconomic factors over which we 
have no control. In the HVAC business, a decline in economic activity as a result of these cyclical or other factors 
typically results in a decline in new construction and replacement purchases, which would result in a decrease in 
our sales volume and profitability.

We may be adversely affected by problems in the availability, or increases in the prices, of raw materials 
and components.
Problems in the availability, or increases in the prices, of raw materials or components could depress our sales or 
increase the costs of our products. We are dependent upon components purchased from third parties, as well as 
raw materials such as steel, copper and aluminum. We enter into cancelable contracts on terms from six months 
to one year for raw materials and components at fixed prices. However, if a key supplier is unable or unwilling to 
meet our supply requirements, we could experience supply interruptions or cost increases, either of which could 
have an adverse effect on our gross profit.

We may not be able to successfully develop and market new products.
Our future success will depend upon our continued investment in research and new product development and 
our  ability  to  continue  to  realize  new  technological  advances  in  the  HVAC  industry.  Our  inability  to  continue  to 
successfully  develop  and  market  new  products  or  our  inability  to  achieve  technological  advances  on  a  pace 
consistent  with  that  of  our  competitors  could  lead  to  a  material  adverse  effect  on  our  business  and  results  of 
operations.

We may incur material costs as a result of warranty and product liability claims that would negatively affect 
our profitability.
The development, manufacture, sale and use of our products involve a risk of warranty and product liability claims. 
Our product liability insurance policies have limits that, if exceeded, may result in material costs that would have 
an adverse effect on our future profitability. In addition, warranty claims are not covered by our product liability 
insurance  and  there  may  be  types  of  product  liability  claims  that  are  also  not  covered  by  our  product  liability 
insurance.

We may not be able to compete favorably in the highly competitive HVAC business.
Competition in our various markets could cause us to reduce our prices or lose market share, or could negatively 
affect our  cash flow, which could have an adverse  effect  on our future  financial results. Substantially  all of the 
markets  in  which  we  participate  are  highly  competitive.  The  most  significant  competitive  factors  we  face  are 
product reliability, product performance, service and price, with the relative importance of these factors varying 
among our product line. Other factors that affect competition in the HVAC market include the development and 
application of new technologies and an increasing emphasis on the development of more efficient HVAC products. 
Moreover,  new  product  introductions  are  an  important  factor  in  the  market  categories  in  which  our  products 
compete. Several of our competitors have greater financial and other resources than we have, allowing them to 
invest in more extensive research and development. We may not be able to compete successfully against current 
and future competition and current and future competitive pressures faced by us may materially adversely affect 
our business and results of operations.

The loss of Norman H. Asbjornson could impair the growth of our business.
Norman H. Asbjornson, the founder of AAON, Inc., has served as the President and Chief Executive Officer of the 
Company from inception to date. He has provided the leadership and vision for our growth. Although important 
responsibilities  and  functions  have  been  delegated  to  other  highly  experienced  and  capable  management 
personnel, our products are technologically advanced and well positioned for sales into the future and we carry 
key man insurance on Mr. Asbjornson, his death, disability or retirement, could impair the growth of our business. 
We do not have an employment agreement with Mr. Asbjornson.

Our stockholder rights plan and some provisions in our bylaws and Nevada law could delay or prevent a 
change in control.
Our stockholder rights plan and some provisions in our bylaws and Nevada law could delay or prevent a change 
in control, which could adversely affect the price of our common stock.

AAON’s business is subject to the risks of interruptions by problems such as computer viruses.
Despite  our  company’s  implementation  of  network  security  measures,  its  services  are  vulnerable  to  computer 
viruses, break-ins and similar disruptions from unauthorized tampering with its computer systems. Any such event 
could have a material adverse affect on our business.

Exposure to environmental liabilities could adversely affect our results of operations.
Our  future  profitability  could  be  adversely  affected  by  current  or  future  environmental  laws.  We  are  subject  to 
extensive and changing federal, state and local laws and regulations designed to protect the environment in the 
United States and in other parts of the world. These laws and regulations could impose liability for remediation 
costs  and  result  in  civil  or  criminal  penalties  in  case  of  non-compliance.  Compliance  with  environmental  laws 
increases  our  costs  of  doing  business.  Because  these  laws  are  subject  to  frequent  change,  we  are  unable  to 
predict the future costs resulting from environmental compliance.

4

5

2006 Annual Report

1B.  Unresolved Staff Comments.

None.

Item 2.   Properties.

The  plant  and  office  facilities  in  Tulsa,  Oklahoma,  consist  of  a  337,000  square  foot  building  (322,000  sq.  ft.  of 
manufacturing/warehouse  space  and  15,000  sq.  ft.  of  office  space)  located  on  a  12-acre  tract  of  land  at  2425 
South Yukon Avenue (the “original facility”), and a 563,000 square foot manufacturing/warehouse building and a 
22,000 square foot office building (the “expansion facility”) located on a 40-acre tract of land across the street from 
the original facility (2440 South Yukon Avenue). Both plants are of sheet metal construction.

The original facility’s manufacturing area is in a heavy industrial type building, with total coverage by bridge cranes, 
containing manufacturing equipment designed for sheet metal fabrication and metal stamping. The manufacturing 
equipment  contained  in  the  original  facility  consists  primarily  of  automated  sheet  metal  fabrication  equipment, 
supplemented by presses, press breaks and NC punching equipment. Assembly lines consist of four cart-type 
conveyor  lines  with  variable  line  speed  adjustment,  three  of  which  are  motor  driven.  Subassembly  areas  and 
production line manning are based upon line speed. The manufacturing facility is 1,140 feet in length and varies 
in width from 390 feet to 220 feet. 

The  expansion  facility  is  39%  (228,000  sq.  ft.)  utilized  by  the  Company  and  61%  leased  to  a  third  party.  The 
Company  uses  22,000  sq.  ft.  for  office  space,  20,000  sq.  ft.  for  warehouse  space  and  80,000  sq.  ft.  for  two 
production lines; an additional 106,000 square feet is utilized for sheet metal fabrication. The remaining 357,000 
sq. ft. (presently leased) will afford the Company additional plant space for long-term growth.

Production at these facilities averaged approximately $17.9 million per month in 2006, which is approximately 55% 
of the estimated current production capacity. Management deems its facilities to be nearly ideal for the type of 
products being manufactured by the Company.

The Company’s operations in Longview, Texas, are conducted in a plant/office building at 203-207 Gum Springs 
Road, containing 258,000 sq. ft. on 14 acres. The manufacturing area (approximately 251,000 sq. ft.) is located in 
three 120-foot wide sheet metal buildings connected by an adjoining structure. The facility is built for light industrial 
manufacturing. An additional, contiguous 15 acres were purchased in 2004 and 2005 for future expansion.

The  Company’s  operations  in  Burlington,  Ontario,  Canada,  are  located  at  279  Sumach  Drive,  consisting  of  an 
82,000 sq. ft. office/manufacturing facility on a 5.6 acre tract of land.

Item 3.   Legal Proceedings. 

The  Company  is  not  a  party  to  any  pending  legal  proceeding  which  management  believes  is  likely  to  result  in 
a material liability and no such action is contemplated by or, to the best of its knowledge, has been threatened 
against the Company.

Item 4.  Submission of Matters to a Vote of Security Holders.

No  matter  was  submitted  to  a  vote  of  security  holders,  through  solicitation  of  proxies  or  otherwise,  during  the 
period from October 1, 2006, through December 31, 2006.

2006 Annual Report

PART II

Item 5.  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer 

Purchases of Equity Securities.

The Company’s Common Stock is traded on the NASDAQ Global Select Market under the symbol “AAON”. The 
range  of  closing  prices  for  the  Company’s  Common  Stock  during  the  last  two  years,  as  reported  by  National 
Association of Securities Dealers, Inc., was as follows:

Quarter Ended 

High 

Low

March 31, 2005 
June 30, 2005 
September 30, 2005 
December 31, 2005 

March 31, 2006 
June 30, 2006 
September 30, 2006 
December 31, 2006 

$16.46 
$18.99 
$19.33 
$18.46 

$23.91 
$28.53 
$26.80 
$29.01  

$13.91
$16.15
$16.28
$16.22

 $18.10
$20.96
$21.41
$21.48

On  February  28,  2007,  there  were  998  holders  of  record,  and  2,264  beneficial  owners,  of  the  Company’s  Common 
Stock.

On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend of $0.20 per share to 
the holders of the outstanding Common Stock of the Company to be declared at dates of the Board’s discretion. 
In 2006, dividends were declared to shareholders of record at the close of business on June 12, 2006 and paid on 
July 3, 2006 and declared to shareholders of record at the close of business on December 11, 2006 and paid on 
January 3, 2007. The Company paid cash dividends of $2,478,000 and declared dividends payable of $2,465,000 
for the year ended December 31, 2006.

Following repurchases of approximately 12% of its outstanding Common Stock between September 1999 and 
September 2001, the Company announced and began its current stock repurchase program on October 17, 2002, 
targeting repurchases of up to an additional 10% (1,325,000 shares) of its outstanding stock. Through December 
31, 2005, the Company had repurchased a total of 1,257,864 shares under the current program for an aggregate 
price of $22,034,568, or an average of $17.52 per share. On February 14, 2006, the Board of Directors approved 
the suspension of the Company’s repurchase program.

On July 1, 2005, the Company entered into a stock repurchase arrangement by which employee-participants in 
AAON’s 401(k) savings and investment plan are entitled to have shares of AAON stock in their accounts sold to 
the Company to provide diversification of their investments. The maximum number of shares to be repurchased 
is unknown under the program as the amount is contingent on the number of shares sold by employees. Through 
December 31, 2006, the Company repurchased 246,551 shares for an aggregate price of $5,185,000 or an average 
price of $21.03 per share. The Company purchases the shares at the current market price.





 
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

Repurchases during the fourth quarter of 2006 were as follows:

Item 6.   Selected Financial Data.

Period

ISSUER PURCHASES OF EQUITY SECURITIES

(a)
Total Number of
Shares (or Units)
Purchased

(b)
Average Price 
Paid Per 
Share
(or Unit)

(c)
Total Number of Shares (or
Units) Purchased as Part of
Publicly Announced Plans
or Programs

(d)
Maximum Number (or 
Approximate Dollar Value) of 
Shares (or Units) that May Yet Be 
Purchased Under the Plans
or Programs

Month #1 — October 1-31, 2006

Month #2 — November 1-30, 2006

Month #3 — December 1-31, 2006

Total

6,867

8,685

19,145

34,697

$23.63

$25.87

$25.53

$25.24

6,867

8,685

4,145

19,697

-

-

-

-

Stock Performance Graph (1)
The following graph compares the cumulative total shareholder return of the Company, the NASDAQ Composite 
and its peer group named below. The graph assumes a $100 investment at the closing price on January 1, 2001, 
and reinvestment of dividends on the date of payment without commissions. This table is not intended to forecast 
future performance of the Company’s common stock.

The following selected financial data should be read in conjunction with the financial statements and related notes 
thereto for the periods indicated which are included elsewhere in this report.

Results of Operations:

00

005

004

003

00

           (in thousands, except per share data)

         Year Ended December 31,

Net sales
Net income
Cash dividends declared per 
      common share

Basic earnings per share
Diluted earnings per share

Weighted average shares 

Basic

  Diluted

Financial Position at End of 
      Fiscal Year:

Working capital
Total assets
Long-term and current debt
Stockholders’ equity

$  231,460 $  185,195 $  171,885 $  147,890 $  154,141
14,227 $    14,611
$ 

11,462 $  

17,133 $ 

7,521 $ 

$ 
$ 
$ 

0.40 $ 
1.39 $ 
1.35 $ 

- $ 

- $ 

-
0.93 $        0.60 $        1.12 $        1.11
0.90  $        0.58 $        1.07 $        1.06

- $ 

12,304

    12,340 

12,435

12,685

13,158

12,652

12,750

12,923

13,251

13,740

           December 31,

00

005

004

003

00

              (in thousands)

  36,356 $ 

  33,372 $ 

  35,369 $  21,149
$ 
$  130,056 $  113,606 $  105,227 $  102,085 $  91,713
         - $ 
$  
         -
67,428 $  62,310
$ 

       275 $  
  71,171 $ 

       167 $ 
  79,495 $ 

        59              $ 
  91,592 $ 

  27,939 $ 

* The peer group consists of American Standard Companies, Fedders Corp., Lennox International, Inc., Mestek, Inc., and LSB 
Industries, Inc., all of which are in the business of manufacturing air conditioning and heat exchange equipment. 

(1) SEC filings sometimes “incorporate information by reference.” This means the Company is referring you to information that 
has previously been filed with the SEC, and that this information should be considered as part of the filing you are reading. 
Unless the Company specifically states otherwise, this Stock Performance Graph shall not be deemed to be incorporated 
by reference and shall not constitute soliciting material or otherwise be considered filed under the Securities Act of 1933 as 
amended, or the Securities Exchange act of 1934, as amended.

Basic  earnings  per  common  share  were  computed  by  dividing  net  income  by  the  weighted  average  number 
of shares of common stock outstanding during the reporting period. Diluted earnings per common share were 
determined on the assumed exercise of dilutive options, as determined by applying the treasury stock method.  
Effective September 28, 2001 and June 4, 2002, the Company completed three-for-two stock splits. The shares 
outstanding and earnings per share disclosures have been restated to reflect the stock splits.





2006 Annual Report

2006 Annual Report

Item 7.   Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Overview
AAON engineers, manufactures and markets air-conditioning and heating equipment consisting of standardized 
and custom rooftop units, chillers, air-handling units, make-up units, heat recovery units, condensing units, coils 
and boilers. Custom units are marketed and sold to retail, manufacturing, educational, medical and other com-
mercial  industries.  AAON  markets  units  to  all  50  states  in  the  United  States  and  certain  provinces  in  Canada.  
International sales are less than five percent as the majority of all sales are domestic. 

AAON sells its products to property owners and contractors through a network of manufacturers’ representatives 
and its internal sales force. Demand for the Company’s products is influenced by national and regional economic 
and demographic factors. The commercial and industrial new construction market is subject to cyclical fluctua-
tions in that it is generally tied to housing starts, but has a lag factor of 6-18 months. Housing starts, in turn, are 
affected by such factors as interest rates, the state of the economy, population growth and the relative age of the 
population. When new construction is down, the Company emphasizes the replacement market.

The  principal  components  of  cost  of  goods  sold  are  labor,  raw  materials,  component  costs,  factory  overhead, 
freight out and engineering expense. The principal raw materials used in AAON’s manufacturing processes are 
steel,  copper  and  aluminum.  Prices  increased  by  approximately  24%  for  steel,  42%  for  aluminum  and  copper 
ranged  from  increases  of  175%-400%  from  2004  to  2006.  The  increases  resulted  in  economic  challenges  to 
AAON. AAON reviewed and adjusted current pricing strategies, created efficiencies in production, and continued 
relationships with suppliers in order to mitigate the economic factors of increasing commodity prices. The major 
component costs include compressors, electric motors and electronic controls, which also increased due to in-
creases in commodities.

Selling, general, and administrative (“SG&A”) costs include the Company’s internal sales force, warranty costs, 
profit sharing and administrative expense. Warranty expense is estimated based on historical trends and other fac-
tors. The Company’s warranty on its products is: for parts only, the earlier of one year from the date of first use or 
14 months from date of shipment; compressors (if applicable), an additional four years; on gas-fired heat exchang-
ers (if applicable), 15 years; and on stainless steel heat exchangers (if applicable), 25 years. Warranty charges on 
heat exchangers do not occur frequently.

The  office  facilities  of  the  Company  consist  of  a  337,000  square  foot  building  (322,000  sq.  ft.  of  manufactur-
ing/warehouse space and 15,000 sq. ft. of office space) located at 2425 S. Yukon Avenue, Tulsa, Oklahoma (the 
“original facility”), and a 563,000 square foot manufacturing/warehouse building and a 22,000 square foot office 
building (the “expansion facility”) located across the street from the original facility at 2440 S. Yukon Avenue. The 
Company utilizes 39% of the expansion facility and the remaining 61% is leased to a third party. 

Other operations are conducted in a plant/office building at 203-207 Gum Springs Road in Longview, Texas, con-
taining 258,000 square feet (251,000 sq. ft. of manufacturing/warehouse and 7,000 sq. ft. of office space). An ad-
ditional 15 acres of land was purchased for future expansion in 2004 and 2005 in Longview, Texas. The Company’s 
operations in Burlington, Ontario, Canada, are located at 279 Sumach Drive, consisting of an 82,000 sq. ft. office/
manufacturing facility on a 5.6 acre tract of land.

Set forth below is income statement information and as a percentage of sales with respect to the Company for 
years 2006, 2005 and 2004:

00

Year Ended December 31,

005

(in thousands)

004

Net sales
Cost of sales
Gross profit
Selling, general and 
    administrative 
expenses
Income from operations
Interest expense 
Interest income
Other income, net

Income before income 
taxes
Income tax provision
Net income

$  31,40    
1,50
43,0   

 1,05
    5,31

         (1)
          4
        44

100.0% $ 

1.0%
1.0%

.%
11.%

0.0%
0.0%
0.1%

185,195
149,904
35,291

100.0%  
81.0%  
19.0%  

 $  171,885
145,021
  26,864

100.0% 
84.3% 
15.7% 

17,477
17,814

9.4%  
9.6%  

15,214
     11,650

8.9% 
6.8% 

           (16)
            67
           467

      0.0%
   0.0%
   0.3%  

(38)
          183 
584

   0.0%
       0.1%
   0.3%

    ,1
      ,05

11.3%
3.%

$ 

1,133

.4% $ 

18,332
6,870

11,462

9.9%
3.7%  

12,379        
4,858

6.2% $ 

7,521

7.2%
2.8% 

4.4% 

Results of Operations
Key events impacting AAON’s cash balance, financial condition, and results of operations in 2006 include the 
following: 

•  An  increase  in  the  volume  of  sales  on  all  product  lines  due  to  commercial  construction  growth  and 
market share gains and effective moderation of commodity costs with purchase agreements and pricing 
strategies affecting gross margin positively resulted in significantly higher revenues and net income. The 
large volume of sales also lowered the effect of major fixed costs in general and administrative expenses 
and occupancy expenses. 

•  AAON  remained  the  leader  in  the  industry  for  environmentally-friendly,  energy  efficient  and  quality 
innovations, utilizing R410A refrigerant and phasing out pollutant causing R22 refrigerant. The phase out 
of R22 began at the beginning of 2004. AAON also utilizes a high performance composite foam panel to 
eliminate over half of the heat transfer from typical fiberglass insulated panels. AAON continues to utilize 
sloped  condenser  coils,  and  access  compartments  to  filters,  motor,  and  fans.  All  of  these  innovations 
increase the demand for AAON’s products thus increasing market share.
In February 2006, the Board of Directors authorized a semi-annual cash dividend payment. Cash payments 
of $ 2.5 million were made in 2006, and $2.4 million accrued as a liability for payment in January of 2007. 
•  Stock repurchases of AAON stock from employee’s 401(k) savings and investments plan was authorized in 
2005. AAON continued to repurchase stock from employees throughout 2006, resulting in cash payments 
of $3.9 million. This cash outlay is partially offset by cash received from options exercised by employees 
as  a  part  of  an  incentive  bonus  program.  The  cash  received  in  2006  from  options  exercised  was  $1.3 
million. 

• 

•  Borrowings under the line of credit were approximately $53.7 million, and $82 thousand in interest expense 
was paid in 2006. Borrowings under the line of credit where interest is accrued are relatively short and 
generally  paid  off  within  the  month  incurred  or  the  following  month.  At  the  end  of  2006  there  were  no 
borrowings owed on the line of credit. 

•  Purchases  of  equipment  and  renovations  to  manufacturing  facilities  remained  a  priority.  AAON  capital 
expenditures  were  $17.8  million.  Equipment  purchases  create  significant  efficiencies,  lower  production 
costs  and  allow  continued  growth  in  production.  The  Company  currently  estimates  to  dedicate  $10.0 
million to capital expenditures in 2007 for continued growth. 

10

11

  
  
 
    
 
 
2006 Annual Report

2006 Annual Report

Net Sales
Net  sales  were  approximately  $231.5  million,  $185.2  million,  and  $171.9  million  in  2006,  2005  and  2004.  The 
highest level of sales occurred in 2006. This increase in sales of $46.3 million or 25.0% resulted from an increase 
in sales volume from active marketing by sales representatives and pricing strategies in order to keep up with in-
creasing raw materials costs. New commercial construction steadily improved throughout 2006 allowing widening 
of the market. Management anticipates continued growth throughout 2007. The increase in sales in 2005 of $13.3 
million or 7.7% was attributable to both volume and price increases. The increased sales were offset by computer 
and electrical outages that caused the closing of the Tulsa facility for four days. 

Gross Profit
Gross  margins  in  2006,  2005  and  2004  were  $43.9  million,  $35.3  million  and  $26.9  million,  respectively.  As  a 
percentage of sales, gross margins were 19.0%, 19.0% and 15.7% for the years ended 2006, 2005 and 2004. 
This stable gross profit percentage from 2005 to 2006 results from adjusting pricing strategies for continued high 
material costs for raw materials and components. Management anticipates the moderation of commodity costs 
through  relationships  with  suppliers  and  price  decreases  in  certain  commodity  costs  will  only  enhance  already 
increased margins. Certain labor efficiencies were also experienced in 2006 adding to the positive gross margin. 
The lower gross margins from 2004 resulted from high material costs, and higher than normal repair expenses to 
moderate sheet metal down time. Due to an increase in the volume of sales, actual gross profit for 2006 increased 
by $8.6 million from 2005 and $8.4 million from 2004.    

Steel,  copper  and  aluminum  are  high  volume  materials  used  in  the  manufacturing  of  the  Company’s  products, 
which are obtained from domestic suppliers. Raw materials prices increased approximately 24% for steel, 42% 
for aluminum and copper increases ranged from 175% to 400% from 2004 to 2006, causing increased inventory 
costs. The Company also purchases from other domestic manufacturers certain components, including compres-
sors, electric motors and electrical controls used in its products. The suppliers of these components are signifi-
cantly affected by the rising raw material costs, as steel, copper and aluminum are used in the manufacturing of 
their products; therefore the Company is also experiencing price increases from component part suppliers. The 
Company instituted several price increases from 2004 to 2006 to customers in an attempt to offset the continued 
increases in steel, copper and aluminum. The Company attempts to limit the impact of price increases on these 
materials by entering into cancelable fixed price contracts with its major suppliers for periods of 6-12 months. In 
many instances, due to significant price increases in 2004, suppliers refused to sell materials at the originally ne-
gotiated six-month or one year purchase order price. 

Selling, General and Administrative Expenses
Selling, general and administrative expenses were $18.1 million, $17.5 million and $15.2 million for the years ended 
2006, 2005 and 2004. The increase in selling, general and administrative expenses was caused primarily by an 
increase in sales expenditures for an increased sales force and active marketing, salary increases in salaries for 
selling, general and administrative personnel were approved in 2006 and increased net income caused an increase 
in profit sharing. There were additional non-cash compensation costs for the fair value of stock options granted to 
employees in accordance with the adoption of SFAS 123(R). These increases were partially offset by a decrease 
of $1.9 million in warranty expenses in the fourth quarter of 2006 based on changes in the estimated accrual from 
actual warranty costs and occurrences due to quality improvements. In 2005 an increase of $2.3 million (15.1%) 
compared to 2004 occurred due primarily to an increase in professional fees, computer consulting, internal ac-
counting expenses resulting from Sarbanes Oxley requirements, employee profit sharing and a full year of expens-
es associated with the Canadian facility. The asset acquisition for the Canadian facilities occurred May 4, 2004. 

Interest Expense
Interest expense in 2006 was $81,000, $16,000 and $38,000 for the years ended 2006, 2005 and 2004. The in-
crease in interest expense of $65,000 in 2006 was due to an increase in average borrowings under the revolving 
credit facility and increases in interest rates. Interest on borrowings is payable monthly at the Wall Street Journal 
prime rate less 0.5% or LIBOR plus 1.6%, at the election of the Company (6.95% at December 31, 2006). Average 
borrowings under the revolving credit facility are typically paid in full within the month of borrowing or the follow-
ing month. The reduction in interest expense in 2005 from 2004 was due to lower average borrowings under the 
credit facility.

Interest Income
Interest income was $24,000, $67,000 and $183,000 in 2006, 2005 and 2004 respectively. The decrease in interest 
income is due to lower balances in certificates of deposit and short-term money markets.  

Other Income
Other income was $424,000, $467,000 and $584,000 in 2006, 2005 and 2004, respectively. Other income is attrib-
utable primarily to rental income from the Company’s expansion facility. All expenses associated with the facility 
that are allocated to the rental portion of the building are included in other income. The Company plans to continue 
to monetize the expansion facility until it is needed for increased capacity. 

Analysis of Liquidity and Capital Resources
AAON’s  working  capital  and  capital  expenditure  requirements  are  generally  met  through  net  cash  provided  by 
operations and the revolving bank line of credit. 

Cash Flows Provided by Operating Activities. Net cash provided by operating activities has fluctuated from year 
to year. Net cash provided by operating activities was approximately $19.4 million, $12.0 million and $16.2 million 
in fiscal years 2006, 2005 and 2004, respectively. The year-to-year variances are primarily from results of changes 
in net income, accounts receivable, inventories held by the Company, accounts payable and accrued liabilities. 

Net income for fiscal year 2006 was approximately $17.1 million, an increase of $5.7 million from fiscal year 2005, 
due primarily to increased volume of sales, adjusted pricing strategies to compensate for higher raw materials 
costs, innovative and efficient products, as well as strong economic growth of the commercial construction indus-
try. The increase in net income during fiscal year 2005 compared to fiscal year 2004 was also due to increased 
volume in sales and adjusted pricing strategies. 

Depreciation expense for December 31, 2006, 2005 and 2004 was $9.1 million, $8.5 million and $5.7 million, re-
spectively. The continued increase is due to increased capital expenditure purchases for growth and production 
efficiencies. The Company adopted SFAS 123(R) in 2006, share-based compensation, which decreased net in-
come by $0.5 million. Share-based compensation was not applicable in 2005 or 2004. Both depreciation expense 
and share-based compensation expense decreased net income but had no effect on operating cash. 

Accounts receivable balances have continued to increase in 2005 and 2006 from the increase in sales. Accounts 
receivable  increased  by  $4.3  million  at  December  31,  2006  compared  to  December  31,  2005.  The  increase  at 
December 31, 2005 from December 31, 2004 was $5.4 million. 

Inventories  increased  by  approximately  $5.8  million,  $2.8  million  and  $0.7  million  at  December  31,  2006,  2005 
and 2004, respectively. The leading factor in the increase is primarily related to the valuation of inventories since 
2004 due to higher raw material and component parts costs. The increase is also attributable to procurement of 
inventory to accommodate an increase of sales. The increase in 2005 from 2004 is related to increased sales and 
valuation of inventory. 

Prepaid expenses decreased by $0.8 million at December 31, 2006 compared to an increase of $0.6 million at 
December 31, 2005. This decrease was primarily related to prepaid copper inventory at 2005 pricing for 2006 ma-
terial requirements that was included in prepaid expenses at December 31, 2005. 

Accounts payable and accrued liabilities increased by $4.3 million, $2.3 million and $4.5 million at December 31, 
2006, 2005 and 2004. The increase in 2006 related to commissions payable and timing of payments to vendors.  
The  change  from  December  31,  2005,  compared  to  December  31,  2004,  was  also  attributable  to  timing  of 
commissions payable and payments to vendors.

1

13

 
 
2006 Annual Report

2006 Annual Report

Cash Flows Used in Investing Activities. Cash flows used in investing activities were $16.8 million, $8.2 million 
and $11.7 million in 2006, 2005 and 2004, respectively. The increase in cash flows used in investing activities in 
2006 were primarily related to capital expenditures of $17.8 million for additions of machinery and equipment for 
increased efficiency and a manufacturing addition at the Longview facility. Cash flows used in investing activities in 
2005 consisted primarily of capital expenditures of $10.1 million for additions of machinery and equipment and an 
office renovation for the facility located in Longview. Cash flows used in investing activities in 2004 related to capi-
tal expenditure additions totaling $17.0 million, reflecting primarily additions to machinery and equipment, a sheet 
metal facility at the Tulsa plant and renovations made to the Company’s Tulsa manufacturing and Longview office 
facilities. Management properly utilizes cash flows provided from operating activities to fund capital expenditures 
that are expected to spur growth and create efficiencies. Due to anticipated production demands, the Company 
expects to expend approximately $10.0 million in 2007 for equipment requirements. The Company expects the 
cash requirements to be provided from cash flows from operations.

In 2006, the Company invested a total of $2 million in certificates of deposit, the latest one maturing in July of 2006. 
In 2005, the Company invested $1 million in a certificate of deposit, which matured in the first quarter of 2006. In 
2002, the Company invested $10 million in a certificate of deposit that matured in 2004 and an additional $3 million 
was invested in certificate of deposits in 2004, which matured in the first quarter of 2005. In 2004, additional funds 
were used to acquire certain Canadian assets and liabilities.

Cash Flows Used in Financing Activities. Cash flows used in financing activities were $3.3 million, $4.2 million 
and $9.9 million in 2006, 2005 and 2004, respectively. The increase of cash used in financing activities primarily 
relates to cash dividends declared and paid and the continued repurchase of the Company’s stock. 

The Company utilizes the revolving line of credit as described below in ‘General’ to meet certain short-term cash 
demands based on current liquidity at the time. The Company accessed $53.7 million of borrowings under the 
line of credit and paid each separate borrowing within the month the borrowing occurred or the following month, 
resulting in no net borrowings under the revolving line of credit at December 31, 2006. The Company utilized the 
revolving line of credit in 2005 and 2004 for short-term cash demands in the amount of $21.1 million and $45.5 
million, respectively. The Company had no net borrowings/(repayments) in 2005, and had $(5.4) million in 2004  

The Company received cash from stock options exercised of $1.3 million and classified the tax benefit of stock 
options exercised of $1.9 million in financing activities in 2006. The Company received cash from stock options 
exercised for the years ended 2005 and 2004 of $820,000 and $478,000, respectively.

In  October  2002,  the  Company’s  Board  of  Directors  authorized  a  stock  buyback  program  to  repurchase  up  to 
1,325,000 shares of stock. The Company repurchased shares of stock under the authorized stock buyback pro-
grams in 2006, 2005 and 2004. The Company repurchased shares of stock from employees’ 401(k) savings and 
investment plan and other incentive plans in 2006 in the amount of $3.9 million for 167,000 shares of stock. There 
were 182,900 shares of stock repurchased for a total of $4.9 million and 265,100 shares of stock repurchased for 
a total of $5.0 million in 2005 and 2004, respectively.

In February of 2006, the Board of Directors authorized a semi-annual cash dividend payment. Cash dividend 
payments of $2.5 million were made in 2006, and $2.4 million declared and accrued as a liability in December 
2006 for payment in January of 2007. Board approval is required to determine the date of declaration for each 
semi-annual payment. Prior to 2006, no cash dividends had been declared or paid. 

General
The Company’s revolving credit facility provides for maximum borrowings of $15.2 million which is provided by 
the Bank of Oklahoma, National Association. Under the line of credit, there is one standby letter of credit totaling 
approximately $600,000. The letter of credit is a requirement of the Company’s workers compensation insurance 
and was extended in 2006 and will expire on December 31, 2007. Interest on borrowings is payable monthly at the 
Wall Street Journal prime rate less 0.5% or LIBOR plus 1.6%, at the election of the Company (6.95% at December 
31, 2006). No fees are associated with the unused portion of the committed amount. At December 31, 2006 and 
December 31, 2005, the Company had no borrowings outstanding under the revolving credit facility. Borrowings 
available under the revolving credit facility at December 31, 2006, were $14.6 million. The credit facility previously 
required the Company to maintain a certain financial ratio and prohibited the declaration of cash dividends. On 
February  14,  2006,  the  Board  of  Directors  voted  to  initiate  a  semi-annual  cash  dividend  of  $0.20  per  share  to 

the holders of the outstanding Common Stock. In conjunction with the Board’s vote on February 14, 2006, the 
restriction of payments of dividends was waived by the lender and removed from the covenants with the renewal 
of the line of credit on July 30, 2006. At December 31, 2006, the Company was in compliance with its financial ratio 
covenants. On July 30, 2006, the Company renewed the line of credit with a maturity date of July 30, 2007. 

Management believes the Company’s bank revolving credit facility (or comparable financing), and projected cash 
flows from operations will provide the necessary liquidity and capital resources to the Company for fiscal year 2007 
and the foreseeable future. The Company’s belief that it will have the necessary liquidity and capital resources is 
based upon its knowledge of the HVAC industry and its place in that industry, its ability to limit the growth of its 
business if necessary, its ability to authorize dividend cash payments, and its relationship with its existing bank 
lender. For information concerning the Company’s revolving credit facility at December 31, 2006, see Note 4 to the 
financial statements included in this report.

Commitments and Contractual Agreements 
The  Company  is  a  party  to  several  short-term,  cancelable,  fixed  price  contracts  with  major  suppliers  for  the 
purchase of raw material and component parts.

The Company has cancelable commitments to purchase machinery and equipment at a cost of $4.8 million.

The following table summarizes the Company’s long-term debt and other contractual agreements as of 
December 31, 2006:

Payments Due By Period
         (in thousands)      

Total

Long-term debt and capital leases
Estimated interest payments on fixed 
  rate long-term debt and capital leases 
Operating lease obligations
Purchase commitments

$ 

59

1

5
$  4,776

Less 
Than 
1 Year

$ 

$ 

59

1

5
4,776

1-3 
Years

4-5 
Years

After 5 
years

$ 

-

-

-
-

-

$ 

$ 

-

-

-
-

-

$ 

$ 

-

-

-
-

-

Total contractual obligations

$  4,841

$ 

4,841

$ 

The fixed rate interest on long-term debt includes the amount of interest due on the Company’s fixed rate long-term 
debt. These amounts do not include interest on the Company’s variable rate obligation related to the Company’s 
revolving credit facility.

Critical Accounting Policies
The preparation of financial statements in conformity with accounting principles generally accepted in the United 
States requires management to make estimates and assumptions that affect the reported amounts of assets and 
liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported 
amounts of revenues and expenses during the reporting period. Because these estimates and assumptions require 
significant judgment, future actual results could differ from those estimates and could have a significant impact 
on the Company’s results of operations, financial position and cash flows. The Company reevaluates its estimates 
and assumptions on a monthly basis. 

14

15

2006 Annual Report

2006 Annual Report

The following accounting policies may involve a higher degree of estimation or assumption:

Allowance for Doubtful Accounts - The Company establishes an allowance for doubtful accounts based upon fac-
tors surrounding the credit risk of specific customers, historical trends in collections and write-offs, current cus-
tomer status, the age of the receivable, economic conditions and other information. Aged receivables are reviewed 
on a monthly basis to determine if the reserve is adequate and adjusted accordingly at that time. The evaluation 
of these factors involves complex, subjective judgments. Thus, changes in these factors or changes in economic 
circumstances may significantly impact the consolidated financial statements. 

Inventory Reserves — The Company establishes a reserve for inventories based on the change in inventory re-
quirements due to product line changes, the feasibility of using obsolete parts for upgraded part substitutions, the 
required parts needed for part supply sales, replacement parts and for estimated shrinkage.  

Warranty — A provision is made for estimated warranty costs at the time the product is shipped and revenue is 
recognized. The warranty period is: for parts only, the earlier of one year from the date of first use or 14 months 
from date of shipment; compressors (if applicable), an additional four years; on gas-fired heat exchangers (if ap-
plicable), 15 years; and on stainless steel heat exchangers (if applicable), 25 years. Warranty expense is estimated 
based on the Company’s warranty period, historical warranty trends and associated costs, and any known identifi-
able warranty issue.  Warranty charges associated with heat exchanges do not occur frequently. 

Due to the absence of warranty history on new products, an additional provision may be made for such products. 
The Company’s estimated future warranty cost is subject to adjustment from time to time depending on changes 
in actual warranty trends and cost experience. Should actual claim rates differ from the Company’s estimates, revi-
sions to the estimated product warranty liability would be required.  

Medical Insurance — A provision is made for medical costs associated with the Company’s Medical Employee 
Benefit Plan, which is primarily a self-funded plan. A provision is made for estimated medical costs based on his-
torical claims paid and any known potential of significant future claims. The plan is supplemented by employee 
contributions and an excess policy for claims over $100,000 each.

Historically, actual results have been within management’s expectations.

Stock Compensation — The Company adopted Statement of Financial Accounting Standard (“SFAS”) No. 123(R), 
Share-Based  Payment,  effective  January  1,  2006.  Applying  this  standard  to  value  equity-based  compensation 
requires the Company to use significant judgment and to make estimates, particularly for the assumptions used 
in the Black-Scholes valuation model, such as stock price volatility and expected option lives, as well as for the 
expected option forfeiture rates. In accordance with the Statement the Company measures the cost of employee 
services  received  in  exchange  for  an  award  of  equity  instruments  using  the  Black-Scholes  valuation  model  to 
calculate  the  grant-date  fair  value  of  the  award.  The  compensation  cost  is  recognized  over  the  period  of  time 
during  which  an  employee  is  required  to  provide  service  in  exchange  for  the  award,  which  will  be  the  vesting 
period. 

New Accounting Pronouncements
In November 2004, the Financial Accounting Standards Board (“FASB”) released SFAS No.151, Inventory Costs, 
an amendment of Accounting Research Bulletin No. 43, Chapter 4, Inventory Pricing. The Statement requires that 
abnormal amounts of idle facility expense, freight, handling costs and spoilage should be expensed as incurred and 
not included in overhead as an inventory cost. The new Statement also requires that allocation of fixed production 
overhead  costs  should  be  based  on  normal  capacity  of  the  production  facilities.  The  Company  adopted  this 
Statement on January 1, 2006. The adoption of this Statement did not have a material impact on the Company’s 
Consolidated Financial Statements. 

In June 2005, the FASB issued SFAS 154, Accounting Changes and Error Corrections, a replacement of Accounting 
Principles Board (“APB”) Opinion No. 20, Accounting Changes, and FAS Statement No. 3, Reporting Accounting 
Changes in Interim Financial Statements. SFAS 154 changes the requirements for the accounting for and reporting 
of a change in accounting principle. Previously, most voluntary changes in accounting principles were required to 
be recognized via a cumulative effect adjustment within net income of the period of the change. SFAS 154 requires 
retrospective application to prior periods’ financial statements, unless if it is impracticable to determine either the 
period-specific effects or the cumulative effect of the change. SFAS 154 is effective for accounting changes made 
in fiscal years beginning after December 15, 2005; however, SFAS 154 does not change the transition provisions 
of any existing accounting pronouncements. The adoption of this Statement did not have a material impact on the 
Company’s Consolidated Financial Statements for the year ended 2006.

In  July  2006,  the  FASB  released  Financial  Interpretation  (“FIN”)  No.  48,  Accounting  for  Uncertainty  in  Income 
Taxes, an Interpretation of SFAS No. 109. FIN 48 clarifies the accounting for uncertain tax positions as described 
in SFAS No. 109, Accounting for Income Taxes, and requires a company to recognize, in its financial statements, 
the impact of a tax position only if that position is “more likely than not” of being sustained on an audit basis solely 
on the technical merits of the position. FIN 48 also requires qualitative and quantitative disclosures including a 
discussion of reasonably possible changes that might occur in the recognized tax benefits over the next twelve 
months as well as a roll-forward of all unrecognized tax benefits. FIN 48 is effective for fiscal years beginning after 
December 15, 2006. Management is in the process of determining the effect FIN 48 will have on the Company’s 
Consolidated Financial Statements and presently does not believe the adoption will have a material effect on the 
Company’s Consolidated Financial Statements.

In  September  2006,  the  FASB  released  SFAS  No.  157,  Fair  Value  Measurements.  SFAS  157  defines  fair  value 
and establishes a framework for measuring fair value in generally accepted accounting principles, and expands 
disclosures about fair value measurements. Although SFAS 157 applies to (and amends) the provisions of existing 
authoritative  literature,  it  does  not,  of  itself,  require  any  new  fair  value  measurements  or  establish  valuation 
standards.  SFAS  157  is  effective  for  financial  statements  issued  for  fiscal  years  beginning  after  November  15, 
2007,  and  interim  periods  within  those  fiscal  years.  Adoption  of  SFAS  157  is  not  expected  to  have  a  material 
impact on the Company’s Consolidated Financial Statements.

In  September  2006,  the  staff  of  the  Securities  and  Exchange  Commission  issued  Staff  Accounting  Bulletin 
(“SAB”) No. 108, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current 
Year  Financial  Statements.  SAB  108  provides  interpretive  guidance  on  the  consideration  of  the  effects  of  prior 
year misstatements in quantifying current year misstatements for the purpose of a materiality assessment. The 
Company adopted SAB 108 for the year ended December 31, 2006. The adoption did not have a material impact 
on the Company’s Consolidated Financial Statements as of December 31, 2006. 

In February, 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial 
Liabilities, which creates an alternative measurement treatment for certain financial assets and financial liabilities. 
SFAS 159 permits fair value to be used for both the initial and subsequent measurements on an instrument 
by instrument basis, with changes in the fair value to be recognized in earnings as those changes occur. This 
election is referred to as the fair value option. SFAS 159 also requires additional disclosures to compensate for 
the lack of comparability that will arise from the use of the fair value option. SFAS 159 is effective for fiscal years 
beginning after November 15, 2007. Adoption of SFAS 159 is not expected to have a material impact on the 
Company’s Consolidated Financial Statements.

In 2005, the FASB released SFAS 123(R), Share-Based Payment, which replaces SFAS No. 123, Accounting for 
Stock-Based Compensation, and supersedes APB Opinion No. 25, Accounting for Stock Issued to Employees. 
The Statement requires measurement of the cost of employee services received in exchange for an award of equity 
instruments based on the grant-date fair value of the award. The compensation cost will be recognized over the 
period of time during which an employee is required to provide service in exchange for the award, which will be 
the vesting period. The Statement applies to all awards granted and any unvested awards at December 31, 2005. 
Effective January 1, 2006, the Company adopted the fair value recognition method of SFAS No. 123(R) Share-
Based Payment, using the modified-prospective-transition method. The Company incurred $500,000 in non-cash 
expenditures for the year ended December 31, 2006 due to the adoption of SFAS 123(R).

1

1

2006 Annual Report

2006 Annual Report

Forward-Looking Statements
This Annual Report includes “forward-looking statements” within the meaning of the Private Securities Litigation 
Reform Act of 1995. Words such as “expects”, “anticipates”, “intends”, “plans”, “believes”, “seeks”, “estimates”, 
“will”, and variations of such words and similar expressions are intended to identify such forward-looking state-
ments. These statements are not guarantees of future performance and involve certain risks, uncertainties and 
assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what 
is expressed or forecasted in such forward-looking statements. Readers are cautioned not to place undue reliance 
on these forward-looking statements, which speak only as of the date on which they are made. The Company 
undertakes no obligations to update publicly any forward-looking statements, whether as a result of new informa-
tion, future events or otherwise. Important factors that could cause results to differ materially from those in the 
forward-looking statements include (1) the timing and extent of changes in raw material and component prices, 
(2) the effects of fluctuations in the commercial/industrial new construction market, (3) the timing and extent of 
changes in interest rates, as well as other competitive factors during the year, and (4) general economic, market 
or business conditions.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

The Company is subject to interest rate risk on its revolving credit facility, which bears variable interest based upon 
a prime or LIBOR rate. The Company had no outstanding balance as of December 31, 2006.

Foreign  sales  accounted  for  less  than  approximately  5%  of  the  Company’s  sales  in  2006  and  the  Company 
accepts payment for such sales in U.S. and Canadian dollars; therefore, the Company believes it is not exposed 
to  significant  foreign  currency  exchange  rate  risk  on  these  sales.  Foreign  currency  transactions  and  financial 
statements are translated in accordance with SFAS No. 52, Foreign Currency Translation. The Company uses the 
U.S. dollar as its functional currency, except for the Company’s Canadian subsidiaries, which use the Canadian 
dollar.  Adjustments  arising  from  translation  of  the  Canadian  subsidiaries’  financial  statements  are  reflected  in 
accumulated other comprehensive income. Transaction gains or losses that arise from exchange rate fluctuations 
applicable to transactions denominated in Canadian currency are included in the results of operations as incurred. 
The exchange rate of the United States dollar to the Canadian dollar was $0.859 and $0.862 at December 31, 2005 
and December 31, 2006.

Important raw materials purchased by the Company are steel, copper and aluminum, which are subject to price 
fluctuations. The Company attempts to limit the impact of price increases on these materials by entering cancelable 
fixed  price  contracts  with  its  major  suppliers  for  periods  of  6  -12  months.  However,  from  2004  to  2006  cost 
increases in basic commodities, such as steel and aluminum, rose by 24% and 42%, copper increases ranged 
from 175% to 400%, and impacted profit margins.

The Company does not utilize derivative financial instruments to hedge its interest rate, foreign currency exchange 
rate or raw materials price risks.

Item 8.   Financial Statements and Supplementary Data.

The financial statements and supplementary data are included commencing at page 29.

Item 9.  Changes in and Disagreements with Accountants on Accounting and Financial 

Disclosure.

None.

Item 9A.  Controls and Procedures.

(a) Evaluation of Disclosure Controls and Procedures

At the end of the period covered by this Annual Report on Form 10-K, the Company’s management, under the 
supervision and with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has 
evaluated the effectiveness of the design and operation of the Company’s disclosure controls and procedures. 
Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer believe that:

•  The Company’s disclosure controls and procedures are designed to ensure that information required 
to be disclosed by the Company in the reports it files under the Securities Exchange Act of 1934 is 
recorded, processed, summarized and reported within the time periods specified in the SEC’s rules 
and forms; and

•  The Company’s disclosure controls and procedures operate such that important information flows 
to appropriate collection and disclosure points in a timely manner and are effective to ensure that 
such  information  is  accumulated  and  communicated  to  the  Company’s  management,  and  made 
known to the Company’s Chief Executive Officer and Chief Financial Officer, particularly during the 
period when this Annual Report was prepared, as appropriate to allow timely decisions regarding the 
required disclosure.   

AAON’s Chief Executive Officer and Chief Financial Officer have evaluated the Company’s disclosure controls and 
procedures and concluded that these controls and procedures were effective as of December 31, 2006.

(b) Management’s Annual Report on Internal Control over Financial Reporting

The  management  of  AAON,  Inc.  and  its  subsidiaries  (AAON),  is  responsible  for  establishing  and  maintaining 
adequate  internal  control  over  financial  reporting.  AAON’s  internal  control  system  was  designed  to  provide 
reasonable assurance to the Company’s management and Board of Directors regarding the preparation and fair 
presentation of published financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems 
determined to be effective can provide only reasonable assurance with respect to financial statement preparation 
and presentation.

In  making  its  assessment  of  internal  control  over  financial  reporting,  management  used  the  criteria  issued  by 
the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated 
Framework. Based on our assessment, we believe that, as of December 31, 2006, the Company’s internal control 
over financial reporting is effective based on those criteria.

1

1

 
 
 
2006 Annual Report

2006 Annual Report

AAON’s  independent  registered  public  accounting  firm  has  issued  an  attestation  report  on  management’s 
assessment of the Company’s internal control over financial reporting. 

Date:  March 13, 2007 

/s/ Norman H. Asbjornson
Norman H. Asbjornson
Chief Executive Officer

/s/ Kathy I. Sheffield
Kathy I. Sheffield
Chief Financial Officer

In  our  opinion,  management’s  assessment  that  AAON,  Inc.  maintained  effective  internal  control  over  financial 
reporting as of December 31, 2006, is fairly stated, in all material respects, based on criteria established in Internal 
Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission 
(COSO). Also, in our opinion, AAON, Inc. maintained, in all material respects, effective internal control over financial 
reporting as of December 31, 2006, based on criteria established in Internal Control – Integrated Framework issued 
by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board 
(United States), the consolidated balance sheets of AAON, Inc. and subsidiaries as of December 31, 2006 and 
2005, and the related consolidated statements of income, stockholders’ equity and comprehensive income, and 
cash flows for each of the three years in the period ended December 31, 2006 and our report dated March 12, 2007 
expressed an unqualified opinion on those consolidated financial statements.

/s/ GRANT THORNTON LLP

(c) Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm

Tulsa, Oklahoma
March 12, 2007

(d) Changes in Internal Control over Financial Reporting

There have been no changes in internal control over financial reporting that occurred during the fourth quarter of 
2006 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over 
financial reporting.

Item 9B.  Other Information.

None.

Board of Directors and
Stockholders of AAON, Inc.

We  have  audited  management’s  assessment,  included  in  the  accompanying  Management’s  Annual  Report  on 
Internal Control Over Financial Reporting (management’s assessment), that AAON, Inc. (a Nevada corporation) and 
subsidiaries (collectively, the Company) maintained effective internal control over financial reporting as of December 
31, 2006, based on criteria established in Internal Control – Integrated Framework issued by the Committee of 
Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for 
maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal 
control over financial reporting. Our responsibility is to express an opinion on management’s assessment and an 
opinion on the effectiveness of the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board 
(United  States).  Those  standards  require  that  we  plan  and  perform  the  audit  to  obtain  reasonable  assurance 
about  whether  effective  internal  control  over  financial  reporting  was  maintained  in  all  material  respects.  Our 
audit included obtaining an understanding of internal control over financial reporting, evaluating management’s 
assessment,  testing  and  evaluating  the  design  and  operating  effectiveness  of  internal  control,  and  performing 
such other procedures as we considered necessary in the circumstances. We believe that our audit provides a 
reasonable basis for our opinions.

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance 
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles. A company’s internal control over financial reporting 
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable 
assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance 
with generally accepted accounting principles, and that receipts and expenditures of the company are being made 
only in accordance with authorizations of management and directors of the company; and (3) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s 
assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
Also,  projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may 
become  inadequate  because  of  changes  in  conditions,  or  that  the  degree  of  compliance  with  the  policies  or 
procedures may deteriorate.

0

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

PART III

Item 10.  Directors, Executive Officers and Corporate Governance. 

The information required by Items 401, 405, 406 and 407(c)(3), (d)(4) and (d)(5) of Regulation S-K is incorporated by 
reference to the information contained in the Company’s definitive Proxy Statement to be filed with the Securities 
and Exchange Commission in connection with the Company’s 2007 Annual Meeting of Stockholders.

Item 11.  Executive Compensation.

The information required by Items 402 and 407(e)(4) and (e)(5) of Regulation S-K is incorporated by reference 
to the information contained in the Company’s definitive Proxy Statement to be filed with the Securities and 
Exchange Commission in connection with the Company’s 2007 Annual Meeting of Stockholders. 

Item 12.  Security  Ownership  of  Certain  Beneficial  Owners  and  Management  and  Related 

Stockholder Matters.

The  information  required  by  Item  403  and  Item  201(d)  of  Regulation  S-K  is  incorporated  by  reference  to  the 
information contained in the Company’s definitive Proxy Statement to be filed with the Securities and Exchange 
Commission in connection with the Company’s 2007 Annual Meeting of Stockholders. 

Item 13.  Certain Relationships and Related Transactions.

Transactions with Related Persons
In 2006, the Company did not enter into any new related party transactions and has no preexisting related party 
transactions.

AAON’s Code of Conduct guides the Board of Directors in its actions and deliberations with respect to related party 
transactions. Under the Code, conflicts of interest, including any involving the directors or any Named Officers, 
are prohibited except under any guidelines approved by the Board of Directors. Only the Board of Directors may 
waive a provision of the Code of Conduct for a director or a Named Officer, and only then in compliance with 
all  applicable  laws  and  rules  and  regulations.  In  2006,  the  Company  did  not  enter  into  any  new  related  party 
transactions and has no preexisting related party transactions.  

Director Independence
The  Board  has  adopted  director  independence  standards  that  meets  and/or  exceed  listing  standards  set  by 
NASDAQ. NASDAQ has set forth six applicable tests and requires that a director who fails any of the tests be 
deemed  not  independent.  In  2006,  the  Board  affirmatively  determined  that  Messrs.  Naugle,  Pantaleoni,  Ryan, 
Short  and  Stephenson  are  independent.  As  an  employee,  Mr.  Asbjornson  is  not  independent,  and  because  he 
is  a  member  of  the  law  firm  that  serves  as  General  Counsel  to  the  Company,  the  Board  has  determined  that 
Mr.  Johnson  should  not  be  deemed  independent.  In  addition,  each  member  of  the  Audit  Committee  and  the 
Compensation Committee is independent.

The Company’s director independence standards are as follows:

It is the policy of the Board of Directors that a majority of the members of the Board consist of directors independent 
of the Company and of the Company’s management. For a director to be deemed “independent,” the Board shall 
affirmatively  determine  that  the  director  has  no  material  relationship  with  the  Company  or  its  affiliates  or  any 
member of the senior management of the Company or his or her affiliates. In making this determination, the Board 
applies,  at  a  minimum  and  in  addition  to  any  other  standards  for  independence  established  under  applicable 
statutes  and  regulations  as  outlined  by  the  NASDAQ  listing  standards,  the  following  standards,  which  it  may 
amend or supplement from time to time:

•  A director who is, or has been within the last three years, an employee of the Company, or whose immediate 
family member is, or has been within the last three years a Named Officer, of the Company can not be deemed 

2006 Annual Report

independent. Employment as an interim Chairman or Chief Executive Officer will not disqualify a director from 
being considered independent following that employment.

•  A director who has received, or who has an immediate family member who has received, during any twelve-
month period within the last three years, more than $60,000 in direct compensation from the Company, other 
than  director  and  committee  fees  and  benefits  under  a  tax-qualified  retirement  plan,  or  non-discretionary 
compensation for prior service (provided such compensation is not contingent in any way on continued ser-
vice), can not be deemed independent. Compensation received by a director for former service as an interim 
Chairman or Chief Executive Officer and compensation received by an immediate family member for service 
as a non-executive employee of the Company will not be considered in determining independence under this 
test.

•  A director who (A) is, or whose immediate family member is, a current partner of a firm that is the Company’s 
external auditor; (B) is a current employee of such a firm; or (C) was, or whose immediate family member was, 
within the last three years (but is no longer) a partner or employee of such a firm and personally worked on the 
Company’s audit within that time can not be deemed independent.

•  A director who is, or whose immediate family member is, or has been within the last three years, employed 
as an executive officer of another company where any of the Company’s present Named Officers at the time 
serves or served on that company’s compensation committee can not be deemed independent.

•  A  director  who  is  a  current  employee  or  general  partner,  or  whose  immediate  family  member  is  a  current 
executive officer or general partner, of an entity that has made payments to, or received payments from, the 
Company for property or services in an amount which, in any of the last three fiscal years, exceeds the greater 
of $200,000 or 5% of such other entity’s consolidated gross revenues, other than payments arising solely from 
investments in the Company’s securities or payments under non-discretionary charitable contribution match-
ing programs, can not be deemed independent.

For purposes of the independence standards set forth above, the terms:

• 

“affiliate” means any consolidated subsidiary of the Company and any other Company or entity that con-
trols, is controlled by or is under common control with the Company;

• 

• 

“executive officer” means an “officer” within the meaning of Rule 16a-1(f) under the Securities Exchange 
Act of 1934, as amended; and

“immediate  family”  means  spouse,  parents,  children,  siblings,  mothers-  and  fathers-in-law,  sons-  and 
daughters-in-law,  brothers-  and  sisters-in-law  and  anyone  (other  than  employees)  sharing  a  person’s 
home, but excluding any person who is no longer an immediate family member as a result of legal separa-
tion or divorce, death or incapacitation.

The  Board  undertakes  an  annual  review  of  the  independence  of  all  non-employee  directors.  In  advance  of  the 
meeting at which this review occurs, each non-employee director is asked to provide the Board with full informa-
tion regarding the director’s business and other relationships with the Company and its affiliates and with senior 
management and their affiliates to enable the Board to evaluate the director’s independence.

Directors have an affirmative obligation to inform the Board of any material changes in their circumstances or re-
lationships that may impact their designation by the Board as “independent.” This obligation includes all business 
relationships between, on the one hand, Directors or members of their immediate family, and, on the other hand, 
the Company and its affiliates or members of senior management and their affiliates, whether or not such business 
relationships are subject to any other approval requirements of the Company.

Item 14.  Principal Accountant Fees and Services.

The information required by Item 9(e) of Schedule 14A is incorporated by reference to the Company’s definitive 
Proxy Statement to be filed with the Securities and Exchange Commission in connection with the Company’s 2007 
Annual Meeting of Stockholders.



3

2006 Annual Report

2006 Annual Report

(vi) 

(vii) 

Incorporated by reference to exhibits to the Company’s Forms 8-K dated February 25, 
1999, and August 20, 2002, and Form 8-A Registration Statement No. 000-18953, 
as amended.

Incorporated  herein  by  reference  to  exhibits  to  the  Company’s  Annual  Report  on 
Form  10-K  for  the  fiscal  year  ended  December 31,  1991,  and  to  the  Company’s 
Form S-8 Registration Statement No. 33-78520, as amended.

(viii) 

Incorporated  herein  by  reference  to  exhibits  to  the  Company’s  Annual  Report  on 
Form 10-K for the fiscal year ended December 31, 2004.

PART IV

Item 15.  Exhibits and Financial Statement Schedules.

(a)  Financial statements.

See Index to Consolidated Financial Statements on page 27.

(b)  Exhibits:

(3)  (A) 

Articles of Incorporation (i)

(A-1)  Article Amendments (ii)
(B) 
(B-1)  Amendments of Bylaws (iii)

Bylaws (i)

(4)  (A) 

Third Restated Revolving Credit and Term Loan Agreement and 
related documents (iv)

(A-1) 

Latest Amendment of Loan Agreement (v)

(B) 

Rights Agreement dated February 19, 1999, as amended (vi)

AAON, Inc. 1992 Stock Option Plan, as amended (vii)

List of Subsidiaries (viii)

Consent of Grant Thornton LLP

(10) 

(21) 

(23) 

(31.1) 

Certification of CEO

(31.2) 

Certification of CFO

(32.1) 

Section 1350 Certification – CEO

(32.2) 

Section 1350 Certification - CFO

__________

(i) 

(ii) 

(iii) 

(iv) 

Incorporated  herein  by  reference  to  the  exhibits  to  the  Company’s  Form  S-18 
Registration Statement No. 33-18336-LA.

Incorporated herein by reference to the exhibits to the Company’s Annual Report 
on Form 10-K for the fiscal year ended December 31, 1990, and to the Company’s 
Forms 8-K dated March 21, 1994, March 10, 1997, and March 17, 2000.

Incorporated  herein  by  reference  to  the  Company’s  Forms  8-K  dated  March 10, 
1997, May 27, 1998 and February 25, 1999, or exhibits thereto.

Incorporated  by  reference  to  exhibit  to  the  Company’s  Form  8-K  dated  July 30, 
2004.

Incorporated herein by reference to exhibit to the Company’s Form 8-K  

(v) 
         dated August 25, 2006

4

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

SIGNATURES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Pursuant  to  the  requirement  of  Section  13  or  15(d)  of  the  Securities  Exchange  Act  of  1934,  as  amended,  the 
Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

AAON, INC.

Dated:  March 13, 2007 

By:   

/s/ Norman H. Asbjornson   
Norman H. Asbjornson, President

Report of Independent Registered Public Accounting Firm — Grant Thornton LLP 

Consolidated Balance Sheets 

Consolidated Statements of Income 

Consolidated Statements of Stockholders’ Equity and Comprehensive Income 

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed 
below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Consolidated Statements of Cash Flows 

Notes to Consolidated Financial Statements 

Page

28

29

30

31

32

33

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 

Dated:  March 13, 2007 



/s/ Norman H. Asbjornson   
Norman H. Asbjornson
President and Director
(principal executive officer)

/s/ Kathy I. Sheffield 
Kathy I. Sheffield
Treasurer
(principal financial officer
and principal accounting officer)

/s/ John B. Johnson, Jr. 
John B. Johnson, Jr. 
Director

/s/ Thomas E. Naugle 
Thomas E. Naugle
Director

/s/ Anthony Pantaleoni 
Anthony Pantaleoni
Director

/s/ Jerry E. Ryan 
Jerry E. Ryan
Director

/s/ Jack E. Short 
Jack E. Short
Director

/s/ Charles C. Stephenson, Jr. 
Charles C. Stephenson, Jr.
Director



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

Report of Independent Registered Public Accounting Firm

Board of Directors and
Stockholders of AAON, Inc.

We  have  audited  the  accompanying  consolidated  balance  sheets  of  AAON,  Inc.  (a  Nevada  Corporation)  and 
subsidiaries  (collectively,  the  Company)  as  of  December  31,  2006  and  2005,  and  the  related  consolidated 
statements  of  income,  stockholders’  equity  and  comprehensive  income,  and  cash  flows  for  each  of  the  three 
years in the period ended December 31, 2006. These financial statements are the responsibility of the Company’s 
management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board 
(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about 
whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, 
evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing 
the accounting principles used and significant estimates made by management, as well as evaluating the overall 
financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In  our  opinion,  the  consolidated  financial  statements  referred  to  above  present  fairly,  in  all  material  respects, 
the financial position of AAON, Inc. and subsidiaries as of December 31, 2006 and 2005, and the results of their 
operations and their cash flows for each of the three years in the period ended December 31, 2006 in conformity 
with accounting principles generally accepted in the United States of America.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board 
(United States), the effectiveness of AAON, Inc.’s internal control over financial reporting as of December 31, 2006, 
based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring 
Organizations of the Treadway Commission (COSO) and our report dated March 12, 2007 expressed unqualified 
opinions on the effectiveness of internal control over financial reporting and management’s evaluation thereof

/s/ GRANT THORNTON LLP

Tulsa, Oklahoma
March 12, 2007

AAON, Inc., and Subsidiaries

Consolidated Balance Sheets

December 31,

00

005

(in thousands, except for share data)

Assets

Current assets:

Cash and cash equivalents
Certificate of deposit
Accounts receivable, net
Inventories, net
Prepaid expenses and other
Deferred tax asset
Total current assets
  Property, plant and equipment, net
   Note receivable, long term
Total assets

Liabilities and Stockholders’ Equity
Current liabilities:

Current maturities of long-term debt
Accounts payable
Dividends payable
Accrued liabilities
Total current liabilities

Long-term debt, less current maturities
Deferred tax liability 
Commitments and contingencies
Stockholders’ equity:

   $ 

  $ 
                      -
            3,4
            ,50
                 
              3,54
            0,5
            5,
                   5
  $ 

130,05   $ 

837
1,000
32,487
23,708
1,041
3,877
62,950
50,581
 75
113,606

                   5
            15,1
,45
            1,05
            34,403

                 108
            11,643
                  -
            17,827
            29,578

                    -
             4,01

                  59
             4,474

Preferred stock, $.001 par value, 5,000,000 

shares authorized, no shares issued

Common stock, $.004 par value, 50,000,000 shares 
   authorized, 12,338,832 and 12,233,558 issued and 
   outstanding at December 31, 2006 and 2005, respectively
Additional paid in capital
Accumulated other comprehensive  income
Retained earnings

Total stockholders’ equity

-

-

4                    
                 10
                 
            0,
            1,5

 49                    
                     - 
                 513
            78,933
            79,495

Total liabilities and stockholders’ equity

  $ 

130,05   $ 

113,606

The accompanying notes are an integral part of these statements.





 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

AAON, Inc., and Subsidiaries

Consolidated Statements of Income

AAON, Inc., and Subsidiaries

Consolidated Statements of Stockholders’ Equity and Comprehensive Income

Net sales

Cost of sales

Gross profit

Year Ending December 31,

      00

    005

     004

(in thousands, except per share data)

$ 

31,40 $ 

185,195 $ 

171,885

       1,50        149,904  

     145,021

         43,0  

      35,291  

     26,864

Selling, general and administrative expenses

         1,05  

      17,477  

       15,214

Income from operations

         5,31  

      17,814  

     11,650

Interest expense

Interest income

Other income, net 

(1)

               4  

(16)

67  

(38)

183

44  

   467  

   584

Income before income taxes

        ,1  

      18,332  

    12,379

Income tax provision

Net income

Earnings per share:

Basic 

Diluted

          ,05  

        6,870  

      4,858

$ 

1,133      $ 

11,462 $ 

7,521

$ 

$ 

1.3 $ 

0.93 $ 

1.35 $ 

0.90 $ 

0.60

0.58

Weighted average shares outstanding:

Basic 

Diluted

     1,304  

  12,340

     1,5  

  12,750

12,435

12,923

The accompanying notes are an integral part of these statements.

Common Stock
Shares               Amount

Accumulated
Other
Comprehensive
Income

Paid-in
Capital
(in thousands)

Retained
Earnings

Total

Balance at December 31, 2003

12,520   $ 

50 

$ 

- $ 

- $ 

67,378 $  67,428

Comprehensive income:

     Net income

     Foreign currency translation 
         adjustment

Total comprehensive income     

Stock options exercised, including 

tax benefits

Stock repurchased and retired

Balance at December 31, 2004

Comprehensive income:

     Net income

     Foreign currency translation 
         adjustment

Total comprehensive income

Stock options exercised, including 

tax benefits

Stock repurchased and retired

Balance at December 31, 2005

Comprehensive income:

      Net income

      Foreign currency translation 
          adjustment

   Total comprehensive income

Stock options exercised, including 

tax benefits

Share-based compensation

Stock repurchased and retired

Dividends declared

-

-

95

(265)

12,350

-

-

162

(278)

12,234

-

-



-

(1)

-

-

-

-

(1)

49

-

-

1

(1)

49

-

-

-

-

-

-

-

-

954

(954)

-

-

-

1,507

(1,507)

-

-

-

3,10

          500

(3,3)

-

-

7,521

7,521

247

-

-

-

-

247

7,768

954

(4,024)

(4,979)

247

70,875

71,171

-

11,462

11,462

266

-

-

-

-

266

11,728

1,508

(3,404)

(4,912)

513

78,933

79,495

-

1,133

1,133

154

-

-

-

-

-

-

154

1,

3,10

500

(45)

(3,55)

(4,43)

(4,43)

Balance at December 31, 2006

1,33 $ 

4 $ 

10 $ 



$   0, $  1,5

The accompanying notes are an integral part of these statements.

30

31

 
 
          
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

AAON, Inc., and Subsidiaries

AAON, Inc., and Subsidiaries

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

Operating Activities

Net income
Adjustments to reconcile net income to net cash 

provided by operating activities:

Depreciation
Provision for losses on accounts receivable 
Share-based compensation
Excess tax benefits from stock options exercised
(Gain)/Loss on disposition of assets
Deferred income taxes
Changes in assets and liabilities, net of effects of 
   acquisition:

Accounts receivable
Inventories
Prepaid expenses and other
Accounts payable
Accrued liabilities

Net cash provided by operating activities

Investing Activities
Cash paid for acquisition
Proceeds from sale of property, plant and equipment
Proceeds from matured certificate of deposit
Investment in certificate of deposit
Notes receivable, long-term
Capital expenditures
Net cash used in investing activities

Financing Activities
Borrowings under revolving credit agreement
Payments under revolving credit agreement
Payments on long-term debt
Stock options exercised
Excess tax benefit from stock options exercised
Repurchase of stock
Cash dividends paid to stockholders
Net cash used in financing activities

Effects of exchange rate of cash
Net increase (decrease) in cash
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year

00

Year Ended December 31,
005
(in thousands)

004

  $  1,133   $  11,462 $ 

7,521

    ,14
          (1)
500
(1,5)
      -
    (510)

    8,503
          68
-
-
        130
    (1,696)

(4,15)
(5,0)

4,1
           103
      1,4

(5,366)
(2,840)
(563)
(1,269)
        3,537
      11,966

       -
                -
        3,000
      (,000)
           -
    (1,1)    
   (1,1)

          -
             30
        3,000
      (1,000)
           (75)
    (10,144)    
     ( 8,189)

      53,0
    (53,0)
         (10)
        1,5
       1,5
      (3,55)
(,4)
      (3,333)

           13
         (54)
           3
  $ 

      21,143
    (21,143)
         (108)
           820
-
      (4,912)
-
      (4,200)

           266
         (157)
           994

   $ 

837 $ 

5,732
521
-
-
4
434

(4,002)
(698)
2,175
1,329
3,143
16,159

(1,778)
13
10,000
(3,000)
-
(16,976)
(11,741)

45,471
(50,827)
-
478
-
(4,979)
-
(9,857)

247
(5,192)
6,186
994

December 31, 00

1.  Business, Summary of Significant Accounting Policies and Other Financial Data

AAON, Inc. (the Company, a Nevada corporation) is engaged in the manufacture and sale of air conditioning and 
heating equipment consisting of standardized and custom rooftop units, chillers, air-handling units, make-up air 
units, heat recovery units, condensing units, coils and boilers through its wholly-owned subsidiaries, AAON, Inc. 
(AAON, an Oklahoma corporation), AAON Coil Products, Inc. (ACP, a Texas corporation), and AAON Canada, Inc., 
d/b/a Air Wise (AAON Canada, an Ontario corporation).  AAON Properties, Inc., (an Ontario corporation) is the les-
sor of property in Burlington, Ontario, Canada, to AAON Canada. The consolidated financial statements include 
the accounts of the Company and its subsidiaries, AAON, ACP, AAON Canada and AAON Properties Inc. All sig-
nificant intercompany accounts and transactions have been eliminated.

Currency
Foreign currency transactions and financial statements are translated in accordance with Statement of Financial 
Standards  No.  52,  Foreign  Currency  Translation.  The  Company  uses  the  U.S.  dollar  as  its  functional  currency, 
except for the Company’s Canadian subsidiaries, which use the Canadian dollar. Adjustments arising from transla-
tion of the Canadian subsidiaries’ financial statements are reflected in accumulated other comprehensive income. 
Transaction gains or losses that arise from exchange rate fluctuations applicable to transactions denominated in 
Canadian currency are included in the results of operations as incurred.

Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the 
United States requires management to make estimates and assumptions that affect the reported amounts in the 
consolidated financial statements and accompanying notes. 

The following accounting policies may involve a higher degree of estimation or assumption:

Allowance for Doubtful Accounts — The Company establishes an allowance for doubtful accounts based upon 
factors surrounding the credit risk of specific customers, historical trends in collections and write-offs, current cus-
tomer status, the age of the receivable, economic conditions and other information. Aged receivables are reviewed 
on a monthly basis to determine if the reserve is adequate and adjusted accordingly at that time.

Inventory  Reserves  —  The  Company  establishes  a  reserve  for  inventories  based  on  the  change  in  inventory 
requirements due to product line changes, the feasibility of using obsolete parts for upgraded part substitutions, 
the required parts needed for part supply sales, replacement parts and for estimated shrinkage. 

Warranty — A provision is made for estimated warranty costs at the time the product is shipped and revenue is 
recognized. The warranty period is: for parts only, the earlier of one year from the date of first use or 14 months 
from date of shipment; compressors (if applicable), an additional four years; on gas-fired heat exchangers (if ap-
plicable), 15 years; and on stainless steel heat exchangers (if applicable), 25 years. Warranty expense is estimated 
based on the Company’s warranty period, historical warranty trends and associated costs, and any known iden-
tifiable warranty issue. Due to the absence of warranty history on new products, an additional provision may be 
made for such products.

The accompanying notes are an integral part of these statements.

3

33

2006 Annual Report

2006 Annual Report

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

Medical Insurance — A provision is made for medical costs associated with the Company’s Medical Employee 
Benefit Plan, which is primarily a self-funded plan. A provision is made for estimated medical costs based on his-
torical claims paid and any known potential of significant future claims. The plan is supplemented by employee 
contributions and an excess policy for claims over $100,000 per claim.

Actual results could differ materially from those estimates. 

Revenue Recognition
The Company recognizes revenues from sales of products at the time of shipment. For sales initiated by indepen-
dent manufacturer representatives, the Company recognizes revenues net of the representatives’ commission. 

Acquisition
On  May  4,  2004,  the  Company  (through  AAON  Canada,  Inc.)  acquired  certain  assets  and  assumed  certain 
liabilities of Air Wise Inc. of Mississauga, Ontario, Canada for a total cost of $1,778,000. Air Wise is engaged in 
the engineering, manufacturing, and sale of custom air-handling units, make-up air units and packaged rooftop 
units  for  commercial  and  industrial  buildings.  The  acquisition  complemented  and  expanded  the  products  the 
Company manufactures and adds significant additional capabilities for future growth. The purchase was paid for 
by cash flow generated from operations. Subsequent to May 4, 2004, AAON Canada Inc.’s activity is included in 
the Company’s results of operations. 

The Air Wise acquisition purchase price was allocated as of May 4, 2004, as follows:

Accounts receivable
Inventory
Fixed assets
Accrued warranty liability
Total purchase price

U.S. 
Dollar 
(in thousands)

$  1,087
 459
 277
(45)
$  1,778

The Air Wise acquisition is not material for pro forma disclosure purposes.

On July 29, 2004, the Company (through AAON Properties, Inc.) purchased property in Burlington, Canada, to 
relocate AAON Canada, Inc. The purchase will allow the Company to enlarge and further expand its production 
capabilities. The purchase price totaled $1,100,000.

Concentrations
The Company’s customers are concentrated primarily in the domestic commercial and industrial new construction 
and replacement markets. To date, virtually all of the Company’s sales have been to the domestic market, with 
foreign sales accounting for less than 5% of revenues in 2006. At December 31, 2006 and 2005, the two custom-
ers having the highest account balances represented approximately 3.5% and 1% respectively, of total accounts 
receivable.

Sales to customers representing 10% or greater of total sales consist of the following:

Year Ended December 31,
00

005

004

Wal-Mart Stores, Inc.

            *

         *

    14%

*Less than 10%

Cash and Cash Equivalents
Cash and cash equivalents consist of bank deposits and highly liquid, interest-bearing money market funds with 
initial maturities of three months or less.

Accounts Receivable
The Company grants credit to its customers and performs ongoing credit evaluations. The Company generally 
does not require collateral or charge interest. The Company establishes an allowance for doubtful accounts based 
upon factors surrounding the credit risk of specific customers, historical trends, economic and market conditions 
and  the  age  of  the  receivable.  Past  due  accounts  are  generally  written  off  against  the  allowance  for  doubtful 
accounts only after all collection attempts have been exhausted.

Accounts receivable and the related allowance for doubtful accounts are as follows:

Accounts receivable
Less: allowance for doubtful accounts
Total, net

Allowance for doubtful accounts:
Balance, beginning of period
Provision for losses on accounts receivable
Adjustments to provision
Accounts receivable written off, net of 

December 31,

00

005

(in thousands)

  $ 

3,014   $ 

()

  $ 

3,4   $ 

33,172
(685)
32,487

Year Ended December 31,

00

005
(in thousands)

004

  $ 
5
          5
        (4)

$ 
717
           634
         (566)

$ 

1,145
860
        (339)

recoveries

        (30)

        (100)

(949)

Balance, end of period

  $ 



  $ 

685

$ 

717

34

35

 
 
 
2006 Annual Report

2006 Annual Report

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

Inventories
Inventories are valued at the lower of cost or market. Cost is determined by the first-in, first-out (FIFO) method. 
The Company establishes an allowance for excess and obsolete inventories based on product line changes, the 
feasibility of substituting parts and the need for supply and replacement parts. Inventory balances at December 
31, 2006 and 2005, and the related changes in the allowance for excess and obsolete inventories account for the 
three years ended December 31, 2006, are as follows: 

December 31,

00

005

(in thousands)

Raw materials
Work in process
Finished goods

Less: allowance for excess and obsolete inventories
Total, net

  $ 

         ,
         1,4
       ,5
          (350)

5,   $  18,256
         1,981
         3,821
       24,058
           (350)
,50   $  23,708

  $ 

Year Ended December 31,

00

005
(in thousands)

004

Allowance for excess and obsolete inventories:

Balance, beginning of period
Provision for excess and obsolete inventories
Adjustments to reserve
Balance, end of period

  $ 

350   $ 

1,050   $ 

               -
               -

          -
        (700)

  $ 

350   $ 

350   $ 

1,050
-
-
1,050

Property, Plant and Equipment
Property, plant and equipment are stated at cost. Maintenance and repairs, including replacement of minor items, 
are charged to expense as incurred; major additions to physical properties are capitalized. Property, plant and 
equipment are depreciated using the straight-line method over the following estimated useful lives:

Description

Buildings
Machinery and equipment
Furniture and fixtures

Years

  10-30
3-15
2-5

At December 31, property, plant and equipment were comprised of the following:

00

005

(in thousands)

Land
Buildings
Machinery and equipment
Furniture and fixtures

Less:  accumulated depreciation
Total, net

  $ 

  $ 

2,193    
,1    
   28,953
     31,
      58,983
      4,053
        5,514
        5,3
      95,643
    113,404
     (45,062)
     (54,1)
   $  5,    $  50,581

Impairment of Long-Lived Assets
The  Company  evaluates  long-lived  assets  for  impairment  when  events  or  changes  in  circumstances  indicate, 
in  management’s  judgment,  that  the  carrying  value  of  such  assets  may  not  be  recoverable.  When  an  indicator 
of  impairment  has  occurred,  management’s  estimate  of  undiscounted  cash  flows  attributable  to  the  assets  is 
compared to the carrying value of the assets to determine whether impairment has occurred. If an impairment of 
the carrying value has occurred, the amount of the impairment recognized in the financial statements is determined 
by estimating the fair value of the assets and recording a loss for the amount that the carrying value exceeds the 
estimated fair value. Management determined no impairment was required during 2006, 2005 and 2004.

At December 31, 2005, the Company had prepaid $776,000 for copper, at 2005 pricing, for 2006 material require-
ments. This amount is included as “prepaid expenses and other” in the Company’s Consolidated Balance Sheet 
at December 31, 2005. There were no prepaid materials as of December 31, 2006.

Commitments and Contractual Agreements
The Company is a party to several short-term, cancelable, fixed price contracts with major suppliers for the pur-
chase of raw material and component parts.

The Company has cancelable commitments to purchase machinery and equipment at a cost of $4.8 million.

3

3

 
 
 
 
2006 Annual Report

2006 Annual Report

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

Accrued Liabilities
At December 31, accrued liabilities were comprised of the following:

Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share: 

Warranty
Commissions
Payroll
Income taxes
Workers’ compensation
Medical self-insurance
Other
Total

00

005

(in thousands)

  $ 

5,5   $ 

    ,
    1,0
               -
           44
           3
           403

,
   ,03
  1,15
         3
         555
         4
         451
1,05   $  1,

  $ 

Warranties
A provision is made for estimated warranty costs at the time the related products are sold based upon the warranty 
period, historical trends, new products and any known identifiable warranty issues. Warranty expense was $2.4 
million, $3.6 million and $3.8 million for the years ended December 31, 2006, 2005 and 2004, respectively.

Changes in the Company’s warranty accrual during the years ended December 31, 2006, 2005 and 2004 are as 
follows:

00

005
(in thousands)

004

Balance, beginning of the year
Payments made
Warranties issued
Changes in estimate related to preexisting warranties
Balance, end of period

  $ 

,   $ 

6,301   $ 

    (3,1)
     4,343
    (1,5)

    (3,641)
     3,622
            -

  $ 

5,5   $ 

6,282   $ 

6,020
       (3,493)
        3,774
               - 
6,301

The provision for warranties was decreased due to a change in estimate related to preexisting warranties 
occurring in the fourth quarter of 2006. The change in estimate was due to factors stated above, such as current 
information on historical trends and a reduction in identifiable warranty issues.

Years Ended,
  00
  005
(in thousands, except share and per share data)

  004

$ 17,133  

$ 11,462 

$ 7,521  

12,304,072
348,331

12,339,998
409,800

12,435,473
487,896

Numerator:

Net income 

Denominator:
Denominator for basic earnings per 
share — 
   Weighted average shares
Effect of dilutive stock options
Denominator for diluted earnings 
per share –

    Weighted average shares
Basic earnings per share
Diluted earnings per share

Anti-dilutive shares
Weighted average exercise price

155,500
$24.82

115,250
$18.85

12,652,403
        $1.39
        $1.35

12,749,798
        $0.93
        $0.90

12,923,369
       $0.60
       $0.58

72,250
     $19.40

Advertising
Advertising costs are expensed as incurred. Advertising expense was $549,000, $506,000 and $615,000 for the 
years ending December 31, 2006, 2005 and 2004, respectively.

Research and Development
Research and development costs are expensed as incurred. Research and development expense was $1,974,000, 
$1,681,000 and $1,072,000 for the years ending December 31, 2006, 2005 and 2004, respectively.

Shipping and Handling
The Company incurs shipping and handling costs in the distribution of products sold that are recorded in cost of 
sales. Shipping charges that are billed to the customer are recorded in revenues.

Profit Sharing Bonus Plan
The  Company  maintains  a  discretionary  profit  sharing  bonus  plan  under  which  10%  of  pre-tax  profit  at  each 
subsidiary  is  paid  to  eligible  employees  on  a  quarterly  basis  in  order  to  reward  employee  productivity.  Eligible 
employees are regular full-time employees who are actively employed and working on the first day of the calendar 
quarter and remain continuously, actively employed and working on the last day of the quarter and who work at 
least 80% of the quarter. Profit sharing expense was $3,286,000, $2,075,000 and $1,408,000 for the years ended 
December 31, 2006, 2005 and 2004, respectively.

Defined Contribution Plan — 401(k) 
The  Company  sponsors  a  defined  contribution  benefit  plan.  Eligible  employees  may  make  contributions  at  a 
minimum  of  1%  and  a  maximum  of  50%  of  compensation.  In  addition,  effective  May  30,  2005,  the  Plan  was 
amended to provide for automatic enrollment in the Plan and provided for an automatic increase to the deferral 
percent at January 1st of each year and each year thereafter, unless the employee elects to decline the automatic 
increase and enrollment. Beginning with pay periods after May 30, 2005, the one year enrollment waiting period 
was waived. Administrative expenses paid by the Company for the plan were $85,300, $68,600 and $69,900 for 
the years ended 2006, 2005 and 2004, respectively.

3

3

 
2006 Annual Report

2006 Annual Report

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

1.  Business, Summary of Significant Accounting Policies and Other Financial Data (continued)

After January 1, 2006, the Company matching increased to 50% of the employee’s salary deferral up to the first 
7% of compensation. Prior to January 1, 2006 the Company matched 100% of the employee’s salary deferral up 
to the first 3% of compensation. The Company contributes in the form of cash and directs the investment to shares 
of AAON Stock. No other purchases of AAON stock are permitted. Employees are 100% vested in salary deferral 
contributions  and  vest  proportionately  over  6  years  in  employer  matching  contributions.  The  Company  made 
matching contributions of $1,033,000, $775,000 and $546,000 in 2006, 2005 and 2004, respectively.

New Accounting Pronouncements
In November 2004, the FASB released SFAS No.151, Inventory Costs, an amendment of Accounting Research 
Bulletin  No.  43,  Chapter  4,  Inventory  Pricing.  The  Statement  requires  that  abnormal  amounts  of  idle  facility 
expense, freight, handling costs and spoilage should be expensed as incurred and not included in overhead as 
an  inventory  cost.  The  new  Statement  also  requires  that  allocation  of  fixed  production  overhead  costs  should 
be  based  on  normal  capacity  of  the  production  facilities.  The  Company  adopted  this  Statement  on  January  1, 
2006. The adoption of this Statement did not have a material impact on the Company’s Consolidated Financial 
Statements. 

In  June  2005,  the  FASB  issued  SFAS  154,  Accounting  Changes  and  Error  Corrections,  a  replacement  of  APB 
Opinion  No.  20,  Accounting  Changes,  and  FASB  Statement  No.  3,  Reporting  Accounting  Changes  in  Interim 
Financial Statements. SFAS 154 changes the requirements for the accounting for and reporting of a change in 
accounting principle. Previously, most voluntary changes in accounting principles were required to be recognized 
via a cumulative effect adjustment within net income of the period of the change. SFAS 154 requires retrospective 
application to prior periods’ financial statements, unless if it is impracticable to determine either the period-specific 
effects or the cumulative effect of the change. SFAS 154 is effective for accounting changes made in fiscal years 
beginning after December 15, 2005; however, SFAS 154 does not change the transition provisions of any existing 
accounting pronouncements. The adoption of this Statement did not have a material impact on the Company’s 
Consolidated Financial Statements for the year ended 2006.

In July 2006, the FASB released FIN 48, Accounting for Uncertainty in Income Taxes, an Interpretation of SFAS 
No. 109. FIN 48 clarifies the accounting for uncertain tax positions as described in SFAS No. 109, Accounting for 
Income Taxes, and requires a company to recognize, in its financial statements, the impact of a tax position only 
if that position is “more likely than not” of being sustained on an audit basis solely on the technical merits of the 
position. FIN 48 also requires qualitative and quantitative disclosures including a discussion of reasonably possible 
changes that might occur in the recognized tax benefits over the next twelve months as well as a roll-forward of 
all unrecognized tax benefits. FIN 48 is effective for fiscal years beginning after December 15, 2006. Management 
is in the process of determining the effect FIN 48 will have on the Company’s Consolidated Financial Statements 
and presently does not believe the adoption will have a material effect on the Company’s Consolidated Financial 
Statements.

In  September  2006,  the  FASB  released  SFAS  No.  157,  Fair  Value  Measurements.  SFAS  157  defines  fair  value 
and establishes a framework for measuring fair value in generally accepted accounting principles, and expands 
disclosures about fair value measurements. Although SFAS 157 applies to (and amends) the provisions of existing 
authoritative  literature,  it  does  not,  of  itself,  require  any  new  fair  value  measurements  or  establish  valuation 
standards.  SFAS  157  is  effective  for  financial  statements  issued  for  fiscal  years  beginning  after  November  15, 
2007,  and  interim  periods  within  those  fiscal  years.  Adoption  of  SFAS  157  is  not  expected  to  have  a  material 
impact on the Company’s Consolidated Financial Statements.

In September 2006, the staff of the Securities and Exchange Commission issued SAB No. 108, Considering the 
Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements. SAB 
108 provides interpretive guidance on the consideration of the effects of prior year misstatements in quantifying 
current year misstatements for the purpose of a materiality assessment. The Company adopted SAB 108 for the 
year ended December 31, 2006. The adoption did not have a material impact on the Company’s Consolidated 
Financial Statements as of December 31, 2006. 

In February, 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial 

Liabilities, which creates an alternative measurement treatment for certain financial assets and financial liabilities. 
SFAS 159 permits fair value to be used for both the initial and subsequent measurements on an instrument 
by instrument basis, with changes in the fair value to be recognized in earnings as those changes occur. This 
election is referred to as the fair value option. SFAS 159 also requires additional disclosures to compensate for 
the lack of comparability that will arise from the use of the fair value option. SFAS 159 is effective for fiscal years 
beginning after November 15, 2007. Adoption of SFAS 159 is not expected to have a material impact on the 
Company’s Consolidated Financial Statements.

In 2005, the FASB released SFAS 123(R), Share-Based Payment, which replaces SFAS No. 123, Accounting for 
Stock-Based Compensation, and supersedes APB Opinion No. 25, Accounting for Stock Issued to Employees. 
The Statement requires measurement of the cost of employee services received in exchange for an award of equity 
instruments based on the grant-date fair value of the award. The compensation cost will be recognized over the 
period of time during which an employee is required to provide service in exchange for the award, which will be 
the vesting period. The Statement applies to all awards granted and any unvested awards at December 31, 2005. 
Effective January 1, 2006, the Company adopted the fair value recognition method of SFAS No. 123(R) Share-
Based Payment, using the modified-prospective-transition method. The Company incurred $500,000 in non-cash 
expenditures for the year ended December 31, 2006 due to the adoption of SFAS 123(R).

Segments
Management  has  reviewed  its  business  operations  and  determined  that  it  operates  in  a  single  homogeneous 
business segment as defined in SFAS 131, Disclosures about Segments of an Enterprise and Related Information. 
The Company sells similar products with similar economic characteristics to similar classes of customers. The 
technologies and operations are highly integrated. Revenues and costs are reviewed monthly by management on 
a product line basis as a single business segment. 

. Supplemental Cash Flow Information

Interest payments of $81,000, $16,000 and $38,000 were made during the years ending December 31, 2006, 2005 
and 2004, respectively. Payments for income taxes of $6,486,000, $7,189,000 and $3,977,000 were made during 
the years ending December 31, 2006, 2005 and 2004, respectively. Dividends payable of $2,465,000 were accrued 
as of December 31, 2006 and paid on January 3, 2007.

3. Certificate of Deposit

At December 31, 2006 there were no investments in certificate of deposits. The Company invested $500,000 in a 
30-day certificate of deposit at January 31, 2006 bearing interest at 4.1% per annum. The Company reinvested 
the proceeds in April of 2006 in a 60-day certificate of deposit bearing interest at 4.7% per annum. At December 
31, 2005, the Company had invested $1.0 million in a 30-day certificate of deposit that bearing interest at 4% per 
annum. Proceeds from the $1.0 million certificate of deposit were reinvested in April of 2006 in a 90-day certificate 
of deposit bearing interest at 4.6% per annum. On June 12, 2004, the Company had a $10.0 million certificate 
of deposit that matured bearing interest at 3.25% per annum. Proceeds of $7.0 million were used for cash flow 
purposes and a reinvestment of $3.0 million, and various amounts throughout the remainder of the year, were in-
vested in 30-day certificate of deposits. At December 31, 2004, the Company had invested $3.0 million in a 30-day 
certificate of deposit bearing interest at 1.9% annum.

4. Revolving Credit Facility

The Company’s revolving credit facility provides for maximum borrowings of $15.2 million which is provided by 
the Bank of Oklahoma, National Association. Under the line of credit, there is one standby letter of credit totaling 
approximately $600,000. The letter of credit was a requirement of the Company’s workers compensation insurance 
and has been renewed and will expire December 31, 2007. Interest on borrowings is payable monthly at the Wall 
Street Journal prime rate less 0.5% or LIBOR plus 1.6%, at the election of the Company (6.95% at December 
31, 2006). No fees are associated with the unused portion of the committed amount. At December 31, 2006, and 
December 31, 2005, the Company had no borrowings outstanding under the revolving credit facility. Borrowings 
available under the revolving credit facility at December 31, 2006, were $14.6 million. The credit facility previously 

40

41

2006 Annual Report

2006 Annual Report

required the Company to maintain a certain financial ratio and prohibited the declaration of cash dividends. On 
February  14,  2006,  the  Board  of  Directors  voted  to  initiate  a  semi-annual  cash  dividend  of  $0.20  per  share  to 
the holders of the outstanding Common Stock. In conjunction with the Board’s vote on February 14, 2006, the 
restriction of payments of dividends was waived by the lender and removed from the covenants with the renewal 
of the line of credit July 30, 2006. At December 31, 2006, the Company was in compliance with its financial ratio 
covenants. On July 30, 2006, the Company renewed the line of credit with a maturity date of July 30, 2007. 

5. Debt

Short-term debt at December 31, 2006, consisted of notes payable totaling $59,000 due in 2007, which are due in 
monthly installments of $9,004, with an interest rate of 3.53%, related to a computer capital lease. 

. Income Taxes

The Company follows the liability method of accounting for income taxes, which provides that deferred tax liabili-
ties and assets are based on the difference between the financial statement and income tax bases of assets and 
liabilities using currently enacted tax rates.

The income tax provision consists of the following:

00

Year Ending December 31,
005
(in thousands)

004

Current
Deferred

$  ,55 
(41)
  $  ,05 

$ 

  $ 

8,566
(1,696)

$  4,424
434
6,870   $  4,858

The reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows: 
The ‘Other’ tax rate primarily relates to certain domestic credits and the recognition of a portion of the Canadian 
valuation allowance. 

Federal statutory rate
State income taxes, net of federal benefit
Other

Year Ending December 31,
005

00
35%
   4%
 (4%)
35%

35%
      4%
 (2%)
37%

004
 35%
 5%
     (1%)
39%

The tax effect of temporary differences giving rise to the Company’s deferred income taxes at December 31 is as 
follows:

Net current deferred assets and (liabilities) relating to: 

Valuation reserves
Warranty accrual
Other accruals
Other, net

Net long-term deferred (assets) and liabilities relating to:

Depreciation and amortization
NOL
Share-based compensation

00

005
(in thousands)

004

$ 

391    $ 

40    $ 

670
2,283
553
31
$  3,54 $  3,877 $  3,537

,1
1,4  
        50  

2,284
1,170  
32  

 (1,4)
   (1)

$  5,4 $  5,027 $  5,830
           -
     (695)
           -
     142
$  4,01 $  4,474 $  5,830

The Net Operating Loss (“NOL”) Deferred Tax Asset relates to AAON Canada. Expiration of NOL’s originating in 
2006 and 2005 will occur in twenty and nine years, respectively.  

. Stock-Based Compensation

The Company maintains a stock option plan for key employees, directors and consultants. The Company’s stock 
option plan provided for 2,925,000 shares of common stock to be issued under the plan. Under the terms of the 
plan, the exercise price of shares granted may not be less than 85% of the fairmarket value at the date of the grant. 
Options granted to directors prior to May 25, 2004, vest one year from the date of grant and are exercisable for 
nine years thereafter. Options granted to directors on or after May 25, 2004, vest one-third each after 1-3 years. All 
other options granted vest at a rate of 20% per year, commencing one year after date of grant, and are exercisable 
during years 2-10. 

Prior to January 1, 2006, the Company accounted for its nonqualified stock options under the recognition and 
measurement principles of APB Opinion No. 25, Accounting for Stock Issued to Employees, and related interpre-
tations. Under APB 25, no stock-based employee compensation cost was reflected in net income, as all options 
granted under the plan qualified for “fixed” plan accounting and had an exercise price equal to the market value of 
the underlying common stock on the date of grant. The Company had adopted the disclosure-only provisions of 
SFAS No. 123, Accounting for Stock-Based Compensation. No stock based compensation cost was recognized 
in the Consolidated Statements of Income for the years ended December 31, 2005 and 2004. 

Effective January 1, 2006, the Company adopted the fair value recognition provisions of SFAS No. 123(R), Share-
Based Payment, using the modified-prospective transition method. Under that transition method, compensation 
cost recognized for the year ended December 31, 2006 includes all share-based payments granted prior to, but 
not yet vested as of January 1, 2006, and compensation cost for all share-based payments granted subsequent to 
January 1, 2006. The compensation cost is based on the grant date fair value calculated using a Black-Scholes-
Merton Option Pricing Model in accordance with provisions of SFAS 123(R).

For the year ended December 31, 2006, the Company recognized approximately $500,000 in pre-tax compensa-
tion expense in the Consolidated Statement of Income related to the stock option plan. The total pre-tax compen-
sation cost related to nonvested stock options not yet recognized as of December 31, 2006, is $1.8 million and is 
expected to be recognized over a weighted-average period of 2.5 years. 

Prior to the adoption of SFAS 123(R), the Company presented all tax benefits resulting from the exercise of stock 
options as operating cash flows in the Consolidated Statement of Cash Flows. Statement 123(R) requires that 
cash flows from the exercise of stock options resulting from tax benefits in excess of recognized cumulative 
compensation cost (excess tax benefits) be classified as financing cash flows. For the year ended December 31, 
2006, $1,852,000 of such excess tax benefits from share-based payment plans was classified as financing cash 
flows. 

4

43

 
 
 
2006 Annual Report

2006 Annual Report

For  the  years  ended  December  31,  2006,  2005  and  2004,  the  Company  reduced  its  income  tax  payable  by 
$1,852,000, $750,000 and $476,000, respectively, as a result of nonqualified stock options exercised under the 
Company’s stock option plan. 

The effect on net income and earnings per share if the Company had applied the fair value recognition provisions 
of SFAS No. 123, Accounting for Stock-Based Compensation, to stock-based employee compensation in prior 
years is as follows:

Net income, as reported
Deduct: Total stock-based employee 

compensation expense determined under fair 
value method for all awards, net of related tax 
effects

Year Ended December 31,

005

004

(in thousands except per share data)

$  11,4

$  7,521   

(43)

(298)

Pro forma net income

$  11,04

 $  7,223

Earnings per share:
Basic, as reported
Basic, pro forma

Diluted, as reported

   Diluted, pro forma

$ 
$ 

$ 
$ 

 0.3
 0. 

0.0 
    0.

 $ 
 $ 

 $ 
 $ 

0.60
0.58

0.58
0.56

The following assumptions were used to determine the fair value of the unvested stock options on the original 
grant date for expense recognition purposes for options granted during the year ended December 31, 2006 and 
for pro forma disclosure purposes for the years ended December 31, 2005 and 2004:

Directors and Officers:

Expected dividend yield
Expected volatility
Risk-free interest rate
Expected life

      Forfeiture Rate

Employees:

Expected dividend yield
Expected volatility
Risk-free interest rate
Expected life
Forfeiture Rate

 00

005

004

 1.71%
36.48%
5.15%
8.0 yrs
0%

1.71%
    40.78%
4.78%
6.30 yrs
28%

        -  
32.15%
4.39%
8.0 yrs
0%

        -  
32.15%
4.39%
8.0 yrs
0%

        -  
36.70%
4.24%
8.0 yrs
0%

        -  
36.70%
4.24%
8.0 yrs
0%

The expected term of the options is based on evaluations of historical and expected future employee exercise 
behavior. The risk-free interest rate is based on the U.S. Treasury rates at the date of grant with maturity dates 
approximately equal to the expected life at the grant date. Volatility is based on historical volatility of the Company’s 

stock. The Company had not declared dividends in prior years, but initiated a dividend payout in 2006. The Company 
used board approved semi-annual dividend payouts of $0.20 per share to calculate the expected dividend yield. 
The following is a summary of stock options outstanding as of December 31, 2006:

Range of  
Exercise 
Prices

Options Outstanding

Number 
Outstanding 
at 
December 
31, 00

Weighted 
Average 
Remaining 
Contractual 
Life

Weighted 
Average 
Exercise 
Price

Aggregate 
Intrinsic 
Value

Options Exercisable

Number 
Exercisable at  
December 31, 
00

Weighted 
Average 
Exercise 
Price

  2.33 – 3.39
  4.00 – 5.78
  8.59 – 16.94
 17.10 – 18.90
19.02 – 21.84
23.32 – 27.65
Total

250,825
256,580
182,175
50,000
81,250
153,500
974,330

0.48
2.43
5.81
8.51
6.53
9.63
4.35

$ 3.26
5.00
12.60
17.71
19.93
24.90
$ 11.00

$23.02
21.28
13.68
8.57
6.35
1.38
$15.28

250,825
256,580
124,375
12,740
52,490
-
697,010

$3.26
  5.00
  11.06
17.74
19.47
 -
$6.78

A summary of option activity under the plan as of December 31, 2006, is as follows:

Options
Outstanding at December 31, 2003
    Granted
    Exercised
    Forfeited or Expired
Outstanding at December 31, 2004
    Granted
    Exercised
    Forfeited or Expired
Outstanding at December 31, 2005
     Granted
     Exercised
     Forfeited or Expired
Outstanding at December 31, 2006
Exercisable at December 31, 2006

Shares 
1,227,330  
31,000 
     (94,950)
(3,600)
1,159,780
133,000
(162,400)
(16,700)
1,113,680
179,500
(271,300)
(47,550)
974,330
697,010

Weighted 
Average 
Exercise Price
$              5.70
            19.58
              4.99
              5.78
$              6.13
            16.63
5.05
              8.37
$              7.51
24.42
4.63
16.67
11.00
$              6.78

Weighted 
Average 
Remaining 
Contractual 
Term

Aggregate 
Intrinsic 
Value ($000)

4.35
2.49

$          14,888
$          13,593

The weighted average grant date fair value of options granted during 2006 was $9.88. The total intrinsic value of 
options exercised during the year ended December 31, 2006 was $4.97 million. The cash received from options 
exercised during the year ended December, 2006 was $1.26 million. The impact of these cash receipts is included 
in financing activities in the accompany Consolidated Statements of Cash Flows. 

44

45

 
 
 
2006 Annual Report

2006 Annual Report

A summary of the status of the non-vested shares as of December 31, 2006, is as follows:

 1. Quarterly Results (Unaudited)

The following is a summary of the quarterly results of operations for the years ending December 31, 2006 and 
2005:

Quarter Ended

March 31

June 30
(in thousands, except per share data)

September 30

December 31

00
Net sales
Gross profit
Net income
Earnings per share:

Basic
Diluted

005
Net sales
Gross profit
Net income
Earnings per share:

Basic
Diluted

  $   53,620 $   

59,137      $   

 64,153      $   

    10,384
      3,743

    10,119
      3,455

        13,591
          5,397

54,550
          9,796
          4,538

        0.30
        0.30

        0.28 
        0.27

           0.44
           0.43

           0.37
           0.35

Quarter Ended

March 31

June 30
(in thousands, except per share data)

September 30

December 31

  $    42,780 $   

45,394      $   

48,136      $   

    10,050
      3,287

      8,372
      3,125

          8,643
          2,766

48,885
          8,226
          2,284

        0.27
        0.26

        0.25 
        0.24

           0.22
           0.22

           0.19
           0.18

Nonvested at January 1, 2006
Granted
Vested
Forfeited
Nonvested at December 31, 2006

Shares

197,420
179,500
(54,300)
(45,300)
277,320

Weighted Average Grant Date Fair Value

$             7.73
$             9.88
$             7.24                 
$             8.18
$             9.13

The total fair value of shares vested during the year ended December 31, 2006 was $432,000. 

. Stockholder Rights Plan

During  1999,  the  Board  of  Directors  adopted  a  Stockholder  Rights  Plan  (the  “Plan”),  which  was  amended  in 
2002. Under the Plan, stockholders of record on March 1, 1999, received a dividend of one right per share of the 
Company’s common stock. Stock issued after March 1, 1999, contains a notation incorporating the rights. Each 
right entitles the holder to purchase one one-thousandth (1/1,000) of a share of Series A Preferred Stock at an 
exercise price of $90. The rights are traded with the Company’s common stock. The rights become exercisable 
after a person has acquired, or a tender offer is made for, 15% or more of the common stock of the Company. 
If  either  of  these  events  occurs,  upon  exercise  the  holder  (other  than  a  holder  owning  more  than  15%  of  the 
outstanding stock) will receive the number of shares of the Company’s common stock having a market value equal 
to two times the exercise price.

The rights may be redeemed by the Company for $0.001 per right until a person or group has acquired 15% of the 
Company’s common stock. The rights expire on August 20, 2012.

. Stock Repurchase

Following repurchases of approximately 12% of its outstanding Common Stock between September 1999 and 
September 2001, the Company announced and began its current stock repurchase program on October 17, 2002, 
targeting repurchases of up to an additional 10% (1,325,000 shares) of its outstanding stock. Through December 
31, 2006, the Company had repurchased a total of 1,257,864 shares under the current program for an aggregate 
price of $22,034,568, or an average of $17.52 per share. On February 14, 2006, the Board of Directors approved 
the suspension of the Company’s repurchase program.

On July 1, 2005, the Company entered into a stock repurchase arrangement by which employee participants in 
AAON’s 401(k) savings and investment plan are entitled to have shares of AAON stock in their accounts sold to the 
Company to provide diversification of their investments. Through December 31, 2006, the Company repurchased 
246,551 shares for an aggregate price of $5,185,000 or an average price of $21.03 per share.

10. Dividends

On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend of $0.20 per share to 
the holders of the outstanding Common Stock of the Company to be declared at dates of the Board’s discretion. 
In 2006, dividends were declared to shareholders of record at the close of business on June 12, 2006 and paid on 
July 3, 2006 and declared to shareholders of record at the close of business on December 11, 2006 and paid on 
January 3, 2007. The Company paid cash dividends of $2,478,000 and declared dividends payable of $2,465,000 
for the year ended December 31, 2006. 

11. Contingencies

The Company is subject to claims and legal actions that arise in the ordinary course of business. Management 
believes that the ultimate liability, if any, will not have a material effect on the Company’s results of operations or 
financial position.

4

4

2006 Annual Report

2006 Annual Report

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

I, Norman H. Asbjornson, certify that:

Exhibit 23.1

Exhibit 31.1

CERTIFICATION

We have issued our reports dated March 12, 2007, accompanying management’s assessment of the effectiveness 
of internal control over financial reporting of AAON, Inc. as of December 31, 2006 and the consolidated financial 
statements AAON, Inc. and subsidiaries as of December 31, 2006 and 2005 and for each of the three years in the 
period ended December 31, 2006 included in the Annual Report of AAON, Inc. on Form 10-K for the year ended 
December  31,  2006.   We  hereby  consent  to  the  incorporation  by  reference  of  said  reports  in  the  Registration 
Statement of AAON, Inc. on Form S-8 (File No. 33-78520). 

Tulsa, Oklahoma 
March 12, 2007

/s/ Grant Thornton LLP

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of AAON, Inc.

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to 
state a material fact necessary to make the statements made, in light of the circumstances under which 
such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, 
fairly present in all material respects the financial condition, results of operations and cash flows of the 
registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure 
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control 
over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and 
have:

a) 

b) 

c) 

d) 

designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and 
procedures to be designed under our supervision, to ensure that material information relating to 
the registrant, including its consolidated subsidiaries, is made known to us by others within those 
entities, particularly during the period in which this report is being prepared;

designed such internal control over financial reporting, or caused such internal control over financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented 
in this report our conclusions about the effectiveness of the disclosure controls and procedures, 
as of the end of the period covered by this report based on such evaluation; and

disclosed in this report any change in the registrant’s internal controls over financial reporting that 
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in 
the case of an annual report) that has materially affected, or is reasonably likely to materially affect, 
the registrant’s internal control over financial reporting; and

5. 

The  registrant’s  other certifying officer  and I have disclosed, based on our most  recent evaluation of 
internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s 
board of directors (or persons performing the equivalent functions):

a) 

b) 

all significant deficiencies and material weaknesses in the design or operation of internal control 
over  financial  reporting  which  are  reasonably  likely  to  adversely  affect  the  registrant’s  ability  to 
record, process, summarize and report financial information; and

any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a 
significant role in the registrant’s internal control over financial reporting.

Date:  March 13, 2007 

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

4

4

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended 
December 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, 
Norman H. Asbjornson, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted 
pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) 

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange 

Act of 1934; and

(2) 

The  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial 

condition and result of operations of the Company.

March 13, 2007  

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

2006 Annual Report

I, Kathy I. Sheffield, certify that:

CERTIFICATION

Exhibit 31.2

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of AAON, Inc.

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to 
state a material fact necessary to make the statements made, in light of the circumstances under which 
such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, 
fairly present in all material respects the financial condition, results of operations and cash flows of the 
registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure 
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control 
over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and 
have:

a) 

b) 

c) 

d) 

designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and 
procedures to be designed under our supervision, to ensure that material information relating to 
the registrant, including its consolidated subsidiaries, is made known to us by others within those 
entities, particularly during the period in which this report is being prepared;

designed such internal control over financial reporting, or caused such internal control over financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented 
in this report our conclusions about the effectiveness of the disclosure controls and procedures, 
as of the end of the period covered by this report based on such evaluation; and

disclosed in this report any change in the registrant’s internal controls over financial reporting that 
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in 
the case of an annual report) that has materially affected, or is reasonably likely to materially affect, 
the registrant’s internal control over financial reporting; and

5. 

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of 
internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s 
board of directors (or persons performing the equivalent functions):

a) 

b) 

all significant deficiencies and material weaknesses in the design or operation of internal control 
over financial reporting which are reasonably likely to adversely affect the registrant’s ability to 
record, process, summarize and report financial information; and

any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a 
significant role in the registrant’s internal control over financial reporting.

Date:  March 13, 2007

/s/  Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

50

51

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2006 Annual Report

2006 Annual Report

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.2

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended 
December  31,  2006,  as  filed  with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”), 
I,  Kathy  I.  Sheffield,  Chief  Financial  Officer  of  the  Company,  certify,  pursuant  to  18  U.S.C.  §  1350,  as  adopted 
pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) 

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange 

Act of 1934; and

(2) 

The  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial 

condition and result of operations of the Company.

March 13, 2007  

/s/ Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

Officers

Norman H. Asbjornson 
has served as President and 
a director of the Company 
since 1988. Mr. Asbjornson 
has been in senior 
management positions in the 
heating and air conditioning 
industry for over 40 years.

Kathy I. Sheffield 
became treasurer of the 
Company in 1999 and 
Vice President in June 
of 2002.  
Ms. Sheffield previously 
served as Accounting 
Manager of the Company 
from 1988 to 1999. 

Robert G. Fergus has 
served as Vice President 
of the Company since 
1988. Mr. Fergus 
has been in senior 
management positions 
in the heating and air 
conditioning industry for 
38 years. 

Board of Directors

John B. Johnson, Jr. has 
served as Secretary and 
a director of the Company 
since 1988. Mr. Johnson 
is a member of the firm of 
Johnson, Jones, Dornblaser, 
Coffman & Shorb, which 
serves as General Counsel 
of the Company. 

David E. Knebel has 
served as Vice President 
of Sales for the company 
since 2005. Mr. Knebel 
has been in the heating 
and air conditioning 
industry for 36 years, 
holding positions in 
design, research, software 
development, engineering, 
teaching, sales and senior 
management. 

Clockwise, from top left: 

Thomas E. Naugle has served as a director 
of the company since 1998. From 1985 to 
present, Mr. Naugle has served as Chairman 
of the Board and/or President of Naugle & 
Co., a company engaged in the business of 
investments.

Norman H. Asbjornson President/CEO

Anthony Pantaleoni has served as a 
director of the Company since 1989. Mr. 
Pantaleoni is of counsel to Fulbright & 
Jaworski LLP in New York, New York. 

Jerry E. Ryan was elected as a director by 
the Board in 2001. Mr. Ryan serves on the 
Board of Directors of Lone Star Technologies 

of Dallas, Texas, and Global Energy 
Equipment Group, Tulsa, Oklahoma. 

Jack E. Short was elected to the Board 
in July 2004 and is the Chairman of the 
Audit Committee. Mr. Short  was employed 
by PriceWaterhouseCoopers for 29 years 
and retired as the managing partner of the 
Oklahoma practice in 2001.

John B. Johnson, Jr. Secretary

Charles C. Stephenson, Jr. has served 
as a director of the Company since 1996. 
From 1987 to January 2006, Mr. Stephenson 
served as Chairman of the Board of Vintage 
Petroleum, Inc., based in Tulsa, Oklahoma. 

Corporate Data
Corporate Data

Transfer Agent and Registrar–Progressive Transfer Company,  
1981 East Murray-Holladay Road, Suite 200, Salt Lake City, Utah 84117

Auditors–Grant Thornton LLP, 2431 East 61st Street, Suite 500,  
Tulsa, Oklahoma 74136

Investor Relations–Jerry Levine, 105 Creek Side Road, Mt. Kisco,  
New York 10549, Ph: 914-244-0292, Fax: 914-244-0295,  
Jerry.levine@worldnet.att.net

Executive Offices–2425 South Yukon Avenue, Tulsa, Oklahoma 74107

General Counsel–Johnson, Jones, Dornblaser, Coffman & Shorb–2200 Bank 
of America Center, 15 West Sixth Street, Tulsa, Oklahoma 74119

Common Stock–NASDAQ-AAON

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Thanks to our employees

SHARRON ABERCROMBIEJOSE ACEVEDO-RAMOSMARIA L. ACOSTAMARIA ACOSTAMARTHA ACOSTAANDRES ACOSTA-LUJANDANIEL ADAIRGARY ADAMSLARRY ADAMSRODNEY ADAMSJEFFREY ADAMS, JR.ISAAC ADERINBOYERITA ADIMARICARLOS AGUAYOMARIA AGUAYOHUMBERTO AGUILAREDUARDO AGUILLERA-RAMIREZATEF AHMEDDANIEL ALAGDONMARTHA  ALANISIMELDA ALBAJULIO ALBINOBRYAN ALEXANDERDANIEL ALEXANDERJAMES ALEXANDERERICA ALEXANDERBRENDAN ALLENDONALD ALLENKEVIN ALLENMICHAEL ALLENSCOTT ALLENAMMAR ALMASSRAFRAFAEL ALONZOTARIK ALSAADIFELIPE ALVARADOMARIO ALVARADO-OROZCOELEAZAR ALVAREZGUSTAVO ALVAREZBERNABE ALVAREZARTURO ALVAREZ JRJUAN AMADORARNOLDO AMAYAMICHAEL AMBURGEYCYNTHIA AMENTJEHAD AMIREHFERNANDO ANDALONWESLEY ANSELMEALFREDO ANTONIOURIEL ARELLANO GUERRAJOSE ARGUMEDO-RUIZSESAR ARIASDELVIN ARNAU-SANCHEZGARY  ARNOLDDAVID ARTIAGA YNORMAN ASBJORNSONSCOTT ASBJORNSONGARY ASHMOREDWIGHT AUSTINIVAN AVALOSJOSEPH AVILAJUAN AYALANORA BACKUSJASWINDER BADESHAJAHANGIA BAHRAMINOEL BAILEYDWIGHT BAKERDOUGLAS BAKERERNEST BAKER, IIIJOHN BALDWINSTEPHEN BALLARDLUIS BANUELOSCAROLYN BARBERRAY BARBERCANDY BARBOSAJUSTIN BARLETTKIONTE BARNESDAVID BARNETTNEREYDA BARRIOS DE PEREZROSA BARROELIA BARRONESTHER BARRONANDREW BASSMICHAEL BASSANGELA BASTIDOSJUSTIN BATEMANRICARDO BATISTARICARDO BATISTA PEREZCURTIS BATTLESTUART BAUGHELLIOTT BAYHYLLEJASON BAZANDAMARCO BECKSHANNON BECKBRYAN BELLGUZMAN BENITEZMARIA BENITEZOFELIA BENITEZBONNIE BENSONIDA BERMUDEZHUGO BERUNENSERGIO BESERRABILL BINNIETHOMAS BIRDJESSICA BIRDWELLJASON BLACKVICKIE BLACKKEVIN BLACKBOROWMARIA BLANCODAVID BLEVINSJIMMY BLEVINSJUSTIN BLEVINSAARON BODOVSKYGENE BOESEJUSTIN BOHNJAMES BONDSAMUEL BORIA-RIVERAANTHONY BOTELLOROSENDO BOTELLODEMETRIUS BOYDJOHN BOYDKAREN BOYDBRET BRADFORDBRIAN BRADFORDDENEISHA BRADLEYMYOSHIA BRADLEYRUSTAM BRAHIMCHRISTOPHER BRANTLEYGLEN BRAUER, JR.RAYNOR BRENTONARLANDO BREWERMITCHELL BROOKSDAVID BROWNDEWAYNE BROWNMITCHELL BROWNRONALD BROWNJERMAINE BROWNJAMES BRUCEPHILLIP BRUCEMACEO BRUMLEYCHRISTOPHER BRYANTWILLIAM BRYANTSEAN BRYEBICH BUIBANG BUIOSMAN BULSHOROBERT BURCHESPERANZA BURNETTAMANDA BURNSKOKESHA BURNSMONICA BURNSCHARLES BURRISSHANNON BURTCHDOUGLAS BURTRUMTINA  BUSHJOE BUSHJOSE BUSTOSANTHONY BUTLERBRUCE BUTLERJOHN BUTLERJOHNNIE BUTLERTYRONE BUTLERBERRY BUZZARDGERARDO CABRALJESSICA CABRERALORENZO CABRERADORA CADENACLEVELAND CAGE, JR.MARTHA CALDERAS-MOSQUEDAMARGARITO CALDERONJORGE CALIXTOLUKE CALVERTLAZARO CAMAJOSE CAMAS-PADILLADAVID CAMPBELLARTHUR CANDLERREFUGIO CARACHUREJORGE CARCAMOHERMES CARCAMO-CASTROFERNANDO CARDENASMARIA CARDENASMARIA G. CARDENASCARL CARPENTERMODESTO CARRERAVINCENT CARSONALEJANDRO CARTAGENAJAMES CARTERLEON CARTWRIGHTJACOB CASONJOSE CASTANEDA-PAREJAJOSE CASTRO MELVIS CERDAMARIA CERDAJUSTO CHAGOYAGUADALUPE CHAIREZ-GALANMARK CHALMERSPATRICK CHAPMANSERGIO CHARLESCLARK CHASEJOSH CHATTILLONJEANNIE CHAUJAHIR CHAVARRIA VEGAMBREADALBERTO CHAVEZGREGORY CHAVEZDALE CHERRYDANIEL CHERRYKRISTEN CHEVALLIERADAN CHICASWILLIAM CHRISTOPHERGEORGE CLARKJ0HN CLARKMORRIS CLARKFLOYD CLEGHORNWILLIAM CLEVELANDSTEVEN COATNEYKENNETH COCHRANMICKEY COLELATOYA COLEMANBARBARA COLEMANDARREN COLEMANOCIE COLLIERRONALD COLLINSDANIEL COLON-ALBINOKATHLEEN COMPTONDALE CONKWRIGHTJOSEPH CONLEYJONATHAN CONNELLDONALDO CONTRERASGERARDO CONTRERASMARK COOKROBERT COOKMARIO COOKMICHAEL COOLIDGESCOTT COONDONNA COONFIELDJAMES COOPERJOHN COPESELAINE CORKHILLALBERTO CORONABLANCA CORONAHERON CORONAROBERTO CORONAIGNACIO CORONA FLORESVICTOR CORREADAVID CORTEZEDUARDO CORTEZROSA CORTEZMERVIN COTTO-SANTIAGOWESLEY COVEYBILLY COXCHRISTINE COXJERRY COXJOHN COXJOSEPH COXPATRICK COXSHIMARGIN COXADRIAN CRABTREERICHARD CRAITESTEVEN CRASERAY CRAYTONJUAN CRESPO-MAISONETMIKEL CREWSDARRELL CROWCAROLYN CRUTCHFIELDMAGNOLIA CUADROS DE SANCHEZVICTORY CULLOM, IIROBERT CUMMINGSCINTIA CURIEL-ROSALESJAMES CURLEYGENE CURTISBOGDAN CZEMIAWSKINICK DABIJACHANH DANGLIEN DANGGWENDOLYN DANIELSJOHN DANIELSMARQUES DARBYCATARINO DAVILAANGELA DAVISBYRON DAVISCAROLYN DAVISJAMES DAVIS, IIIJERRY DAVISJOHNNY DAVISRICHARD DAVISTERENCE DAVISOTILIA DE JONESGILDA ETUMUDORGREGORY EUBANKSOTIS EVANSTYRONE FAILS, JR.SHAWN FAIRLEYJOSE FELICIANOJOSE FELIX-GALVANROBERT FERGUSELIZABETH FERGUSONDAVID FERNANDEZPEDRO FERNANDEZSALVADOR FERNANDEZNICK FERRARODAVID FIGUEROAJESSE FIGUEROAANDREW FINCHSTERLYN FINCHBRUCE FISHERLACRETIA FISHERKIRK FITETIFFANY FITZPATRICKWILLIE FITZPATRICK, JR.ANTHONY FIZERWAYNE FLASKACOPOTENIA FLETCHER, JR.CAROLINA FLORESEFIGENIA FLORESJUANA FLORESLAURA FLORESRUBY FLOYDVICKY FLOYDMARK FLYHECTOR FONTANEZ-ZAYASKENNETH FONTENOTSHARON FONTENOTSHEILA FORRESTMAE FORTESCHRISTOPHER FOSTERFREDERICK FOSTERWILFRED FOURNIERJOSEPH FOWLERLORETTA FOWLKESKENNETH FOYILPHILLIP FRANKWARREN FRANKLINREVONDA FRANKSGARY FREDERIKSEN, JR.PATRICK FREEMANDAVID FREISTEDTOLGA FRENCHANGEL FRIASDANIEL FRIASELBERT FULLERMATHEW FULSOMANGELIA FULTON CREWSALBERT GABRIELRONY GADIWALLARICKY GAFFNEY,  IIRANULFO GALICIABRENDA GALINDOJOHN GALLMA GALVANMARIA GALVANSANDY  GALVANYOLANDA GALVANALVARO GARCIAAMBER GARCIAANGEL GARCIAJESUS GARCIAJOSE GARCIALAURA GARCIAMARIA GARCIAMAXIMO GARCIANICKLAUS GARCIAWILSON GARCIAMARIA GARCIA GARCIAJ GARCIA-GONZALEZMIGUEL GARCIA-SUAREZJOHNNY  GARDNER, JR.NORMA GARIBAYPATRICK GARRETT, SR.CARLOS GARZAJESSIE GARZARALPH GASAWAYMIKE GATELEYSTEVE GEARYJAMES GEORGEALVIN GILBERTAMRIK GILLWILLIAM GILLDERRICK GILLISWILBERT GILMOREGARY GOFFEMMETT GOINSHENRY GOLDSTONFAUSTINO GOMEZHECTOR GOMEZHUMBERTO GOMEZJOSE GOMEZMARIA GOMEZMOISES GOMEZJESUS GOMEZ, IIJOSE GOMEZ-MORENOJUAN GOMEZ-OLMOSMANUEL GOMEZ-ORTEGADANIEL GOMEZ-SIGALACHRISTOPHER GONZALESADRIAN GONZALEZGLORIA GONZALEZJOHN GONZALEZMARTIN GONZALEZVICTOR GONZALEZBARRY GOODSONJOSHUA GORDONADRIAN GOREDAVID GOTCHEREDITH GRACIADALE GRAHAMBUENAS GRANADOSERNESTO GRANADOSZAINAB GRAVESMARIA GRAYROXANE GRAYJESSE GREEN, JR.KELLI GREERJAMES GREGGJOHN  GRIFFINRONALD GRIMESDANIEL GROFFRAMON GUERREROJOSH GUITARREMIA GUTHERYMANUEL GUTIEREZISAAC GUTIERREZRAQUEL GUTIERREZEVELYN GUTIERREZ LAINEZRANDELL GUYNNERASMO GUZMANNANCY HACKNEYJACK HALLKELLY HALLROBERT HALLSTEPHEN HALLROBERT  HALTONOTIS HAMILTONSCOTT  HAMILTONJEFFREY HAMMERSAM HAMMOUDCALVIN HANDYJIM HANGROBERT HANNARODERICK HARBINDONALD HARDENMARQUIS HARLINKENNY HARRISSTACEY HARRISSTEPHANIE HARVEYHEATHER HASKINSDONALD HATLEYJOHN HAWLEY, JR.WILLIE HAYESRICKEY HAZLETTTHEODORE HEATHTIM HEFFLINALMONZO HENDERSONCAMONA HENDERSONDANIEL HENDERSONDEMETRIUS HENDERSONKUNSTANZE HENDERSONMIKE HENSLEYPHILLIP HERLALVARO HERNANDEZARMANDO HERNANDEZBENJAMIN HERNANDEZCORCINA HERNANDEZEDUARDO HERNANDEZFRANCISCO HERNANDEZFRANCISCO O. HERNANDEZJORGE HERNANDEZLUIS HERNANDEZLUIS T. HERNANDEZMARIA HERNANDEZMARIANO HERNANDEZMAYTE HERNANDEZMARCOS HERRERAFRANCISCO HERRERA, JR.DONALD HICKMANTAKEO HIGABRENDA HIGGINSDEWAYNE HIGHTOWERPAUL HILLTOMEKA  HILLJULIAN HILL, JR.CHRISTINE HINESJEFFERY HINESJUAN HINOJOSATYSON HINTHERCLYDE HITCHYESANDRA HOFFMANBRYAN HOLLANDJAMES HOLLINGSWORTHLORETTA HOLLINSSTEPHANIE HOLLISDONNA HOLLOWAYLAWRENCE HONELLOUIS HOOVERSTEPHEN HOOVERSAMANTHA HOPKINSTERRI HORNWILBURN HORNER, JR.DANIEL HORRELLJOSHUA HORSTSTANLEY HORTONCRYSTILLA HOUSTONJERRY HOUSTONDAVID HOWARDLARRY HOWARDCLARENCE HUBBELLLYDIA HUDSONPHILIP HUDSONBILLY HUGHARTJIMMY HUGHESLUCIO HUIZARROSARIO HUIZARROBB HULLERBRENDA HURTADOGARY HUTCHINSGARY HUTCHINSONOKECHUKWU IBEHSAMUEL INGRAMANTHONY INKTONFIRDOUS IRANITIM IRWINMELHAM JABRJEFF JACKSONBELINDA JACKSONMAVIS JACKSON, JR.DANNY JACOTJOAQUIN JAIMES-BENITEZJOSE JAMAICAMcKINLEY JAMESFRANCES JARAMILLOGENELLE JIMBOYALCIDEZ JIMENEZALEJANDRO JIMENEZJ. ROSARIO JIMENEZMARIA JIMENEZRAMIRO JIMENEZRAUL JIMENEZVINCENT JIMENEZJUAN JIMENEZ, JR.PEDRO JIMENEZ-DELFINFREDERICK JIMMERSONKAREN JOBEAARON JOHNSONBRIEN JOHNSONED JOHNSONJUSTIN JOHNSONLEROY JOHNSONREX JOHNSONSYLVIA JOHNSONTHURLIN JOHNSON, IIPETE JOHNSON, JR.ANGEL JONESDANNY JONESDAVID JONESKELLI JONESRENEE JONESROSE JONESJAMES JONES, JR.BRANDON JORDANJASON JORDANCESAR JUAREZFERNANDO JUAREZJAIME JUAREZBRIAN KASTLRICHARD KEATONAARON KELLYDANIEL KEMPGREGG KENNEDYTRENT KEPLINGERCHRISTINE KEYEBRAHIM KHIDIRKIRK KHILLINGSRENA KIGHTALAN KILGOREANDREW KILGOREBOBBY KILGORETHANG KIMMICHAEL KIMMONSLORI KINGRUSSELL KINGSTEPHEN KINSEYALEKSANDR KIRYUKHINDAVID KNEBELROBERT KNUTHANATOLI KONOVALCHUKJAMES KOSSEDWARD KRACKE, IIROBERT KRAFJACKMIKHAIL KRUPENYAEDWARD KSIAZEKKARL KUENEMANNVIKTOR KUZINPHILLIP LAFONDJEANETTE LAIRDRENATO LALATAGEORGE LAMCOLE LAMBERTDEBORAH LANEDONALD LANEYARTURO LARA-SOLORZANOJARREAU LAWSONJEFFREY LAWSONKALEB LAWSONRONALD LAWSONJOSE LEBRONCYNTHIA LEEJACQUELINE LEERHONDA LEEMATTHEW LEEPERPATRICIA LENNOXALBERTO LEON-BENITEZHUGO LERMARONALD LESTERJONATHAN LEUNGGILBERTO LEYVAPING LINJERRY LINCOLNTHOMAS LINCOLNWILLIAM  LINDSAYELIZABETH  LISCANOBRIDGET LISTERANTHONY LITTLEJARED LITTLEJOHNGHAITH LIYAJOEL LOCKMILLERFRANKLIN LOGAN, JR.LISA LONGALONZO LOPEZANA LOPEZANGELITA LOPEZARTURO LOPEZDAVID LOPEZJORGE LOPEZJOSUE LOPEZMARGARITO  LOPEZTHOMAS LOPEZRUFINO LOPEZ, JR.REYNALDO LOPEZ-HERNANDEZVINCENT LOWEPAUL LOWERYJARRAD LUDLOWQUANNAH LUDLOWANDREA LUECKKENNETH LUISMARIANA LUNAKELLY LYBARGERWILLIE LYNCHADAN MACARIOFELIPE DE LA TORREMATILDE DE LA TORREMARIA DE TORRESMARIA  DECARREONGWENDOLYN DECKARDTROY DEERINWATERBOBBY DEGRAFFENREIDMAGALI DEJESUSISMAEL DELAPAZEVA DELATORREALBERTO DELEON-CASTILLOALVARO DELEON-MEDOZAGUADALUPE DELGADOLUIS DELGADOJUANA DELOBORAQUEL DELUNARODRIGO DELUNAJATINDER DEOLSURJIT DEOLEUFEMIO DEPAZVICENTE DEPAZ-MEDINAAUDENCIA DEVILLACHARLES DEWEESEGENARO DIAZLUIS DIAZSOLEDAD DIAZHEATHER DIETLINCARL DIKAHOMER DODDRICKEY DODSONANDRES DOMINGOMARTIN DOMINGUEZPABLO DOMINGUEZWILBER DOMINGUEZSEAN DONALDJENNIFER DOSSMANHAROLD DOUGLASERIC DOWNINGCLAUDIA DUARTECATHRYN DUBBSJERROLD DUBBSBRIAN DUCKETTCRAIG DUKELINDA DUNECBUDDY DUNNCORTNEY DUNNISAAC DUNPHYJASON DUNPHYVICTOR DURANRALPH DURBINALEJANDRO DURONRANDY DWIGGINSWENDELL EASILEYFREDRICK EDWARDSGARY EDWARDSABBAS ELHORCHIBETTY  ELIESTEBAN ELIZALDEEARL ELLIOTTHARVEY ELLISTHOMAS ELLIS, JR.TINISHA ENGLISHDANIEL ESCALERRA-MORENOJOSE ESCOBEDOTERESA  ESCOBEDONORBERTO ESPARZA-TORRESJOSE ESPINOSAJOSE ESQUIVELEARL ESTEPELIZABETH ESTRADAJESUS ESTRADA-GONZALEZSTEPHEN ETTERThanks to our employees

BRIAN MACDOUGALLGREGORY MACKDON MADEWELLJORGE MADRIGALALEJANDRO MAGANAARTURO MAGANAJOSE MAGANAMONICA MAGANAOCTAVIO MAGANAYAJAIRA MAGDALENOSYED MAHMOODJUSTIN MAINUSCARLOS MALONEBARBARA MALONEERIC MANNKENNETH MANNALVINO MARESWILLIAM MARKWARDTMA MARQUEZ DE-GILBREATHMARGARITO MARQUINA-GON-ZALEZANA MARROQUINJOSE MARRUFOHERBERT MARSHECO MARSHALLTHOMAS MARTINADRIAN MARTINEZALFREDO MARTINEZFRANCISCO MARTINEZJAVIER MARTINEZJOSE MARTINEZJUAN MARTINEZKAREN MARTINEZOBDULIA MARTINEZROBERTO MARTINEZTAMARA MARTINEZJAVIER MARTINEZ, JR.JUAN MARTINEZ-RUIZBEVERLEY MASONJAMES MASONBILLY MASSEYIAN MATHESONARTURO MATULRON MAUCHLEONARD MAXWELLJACQUELINE MAYFIELDTERRELL MAYFIELDVLADO MAZILICACOURTNEY McAFEEDEBORAH McATEERTINA McBEATHROBERT McBOWMANCHRISTOPHER McCLAINDIRK McCLELLANMICHAEL McCLELLANDDORIS McCLOUDROY McCONNELLDEBRA McCOWANKEVIN McCOWANWESLEY McCOWAN, JR.SHAWN McCRARYROBERT McCULLEYKATHY McCULLOCHFLORENCE McDANIELLOYD McDANIELSHARRON McDANIELJAMES McELROYDEBORAH McFARLINANTONIO McGILBRAKELLI McGLYNNMARY McGOWANDEXTER McKINLEYRANDY McKINNEYDOMINGO McKNIGHTJOSHUA McLAINGEORGIE McNACGINA MEANSJOSE MEJIAJIMMY MEKSAVANHJAMES MELDASEAN MELILLOKEVIN MENDENHALLGEOVANNI MENDEZMARIO MENDEZJESUS MENDOZAJOSE MENDOZAIRMA MERCADOAUBREY METCALF, JR.KITTY MEYERMOMCILO MIJAKOVACRONALD MIKELRUSSELL MILEMELVIN MILESRANULFA MILIANCHRIS MILLERDUANE MILLSMICHAEL MILTONBRIAN MINGLEBRUCE MINTONSCARLETT MIRANDAANTHONY MITCHELLRUSSELL  MITCHELLJOHNNY MIZEJAY MODISETTERONALD MODLINIRMA MOGUELMOHAMMAD MOHAMMADIBRAULIO MOISES-LEEJOSE MOLINASTEVEN MOLSTERJOSE MONREALENOC MONTESKASEY MONTGOMERYJON MOODYJAMES MOOREMARC MOOREMARIA MOORETONY MOOREISRAEL MORAJUAN MORAYANIRA MORALES-APONTECARLOS MORANRON MOREHEADBERTA MORENOEVAN MORGANANTHONY MORGANMATTHEW MORGANROBERT  MORGANDAVID MORGERSONSCOTT MORGERSONMARCUS MORROWCLAYTON MOTEDARRELL MOTEOMAR MOYATHERESA MUISEERIC MULLINIKSJESUS MUNOZEDUARDO MURILLOJOSHUA MURRELLJOHNNY MUSGRAVEJUNE MUSGRAVERAGULENDRAN MUTHURAJAHDAVID MYERSASAD NAKHAEIVINCENT NASHMARIA NAVAMARTIN NAVAMAHENDRAN NAVARATNAMPETRA NAVARROABEL NAVEJASCLAYTON NEALSAMUEL NEALEJOSE NEGRONNATALIE NEILSONNATHANIEL NELSONRONALD NELSONPEDRO NEVAREZKARMEN NEWMANDUNG NGUYENTHANH NGUYENTHO NGUYENTIEN NGUYENTUAN NGUYENNITA NICHOLSCHRISTOPHER NICKOLESKAREN NILES-BLAYERHANK NOESKEJERRY NOLANABDOLHOSSEIN NOORICHRISTOPHER NORFLEETWILLIE NORFLEETROBERT NORFLEET, JR.LAMAR NORMANQUINTON NORTONDEBRA NOTHNAGELJOHN NUTTDEANGELO OAKLEYJAIME OBREGONJOSE OCHOAALEXANDER OFOSUCHRIS OGANSJOHN OGLELEE OLIVER, JR.ANTHONY OLIVERASERIC  OLSONMARGARITO OLVERAJAMES O’NEILL, JR.JAMES O’NEILL, SR.GERRIN ORANGEJASON ORCUTTLETICIA ORONACARLOS OROZCO-TORRESCECILIO ORTEGAHOMERO ORTIZHERIBERTO ORTIZ-GONZALEZDANIEL OSBERNSANDRA OSBERNDAVID OSBORNEJENNIFER OVERMEYERMARTIN OZURA-CARRILLOLUIS PACHECOGUILLERMO PACHECOANASTACIO PADILLAEDMUNDO PAIZJ PANIAGUAJOSE PARDINASJOSE PARRASAUL PARRAOSCAR PARTNERGAURAV PATELCORRY PATTERSONVADEN PAULSENJOSE PAZTRAVIS PEARSONKIMBERLY PEEKSJOSE PENASILVIANO PENALOZA-PEREZCHRIS PENCZAKVLADIMIR PENIAZSERGIO PERALTACESAR PEREZJUANA PEREZMARIA PEREZRENE PEREZ, JR.SERGIO PEREZJOSEPH PERKINSLADRUE PETERSDANIEL PEURIFOYSONG PHANRANDY PHELPSLOUIS PHILLIPSJEFF PICKERINGMARK PIERCEPEDRO PINA-VALLESJOSE PINEDAWALTER PINTOKOSTA PIRUZESKICLIFFORD PITCHFORDKEVIN PITTSERBASANT POKHRELRENU POKHRELALLEN PONDERBRENAYE POWELLPHILLIP POWELLRUDY POWELLGREG POWERSJEFFERY POWERSJOSE PRADO-HUERTATONY PRATTSCOTT PRIESPATRICIA PRITCHETTALMA PUGADAVID QUANGVAN GIOAN QUANGDONALD QUICKJESUS QUINONESEMILIO QUINTANILLAJOSE QUINTEROJOHN QUINTONNIMALAKIRTHI RAJASINGHEFERDINAN RALATFRANCISCO RAMIREZJOSE RAMIREZRAYMON RAMIREZJOSE RAMONLUPE RAMOSMOISES RAMOSMARTINA RAMOS-RAMOSJERRY RAMSEYJOSE RANGEL-ALVARADOALONZO RANSOMETOMMY RASNICMARIWAN RASULSAFWAN RASULROBERT RATLIFFTERRY RATZLOFFROBERT RAYNOSANDRA READERDIEGO REBOLLARFLOR REBOLLARJOSE RECIO-GOMESPEGGY REDDENANTHONY REEDJAMES REEDLYNN REEDFREEMAN REED, JR.MARGARET REEVESEVERETT REITZDAVID RENEAURODOLFO RENTERIAOVIEDO REYES GONZALESALFREDO REYNA-MENERAHEATHER REYNOLDSTHOMAS REYNOLDSDAVID RIBBESCOTT RICEDAVID RICHARDSKIMBERLY RICHARDSSEAN RICHARDSONSYLVESTER RICHARDSONANGELA RIDEOUTMARIA RIOJASTOMAS RIOS-RAMIREZDELMECIO RISERSTEPHEN RISERFRANKLIN RISNERAARON RITCHIEJAMES RITCHIELEONEL RIVASVERONICA RIVASANDREA RIVAS-MANSILACASTULO RIVERALAURA ROBERSONJOHN ROBERTSPAUL ROBERTSTRAVASIL ROBERTSONPHILLIP ROBERTSON, JR.ANN ROBINSONBENTON ROBINSONJAMES ROBINSONMARY ROBINSONMICHAEL ROBINSONKENYAN RODGERSVOLODYMYR RODOVNSKYDANIEL RODRIGUEZDIANA RODRIGUEZGILBERTO RODRIGUEZHECTOR RODRIGUEZHECTOR J. 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