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AAON

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FY2007 Annual Report · AAON
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2007 AAON ANNUAL REPORT

AAON  is  a  global  leader  in  providing  equipment  with 

environmentally  responsible  designs.  AAON  utilizes  ex-

tensive product knowledge and state of the art manufac-

turing  to  continuously  provide  a  wide  variety  of  energy 

efficient and earth friendly features to the dynamic mar-

ketplace.  The  success  of  our  commitments  can  be  seen 

in  the  consistent  growth  of  our  sales  and  the  increasing 

profitability of the company.

innova–
tion implementation
= Possibilities

Company Profile

Financial Highlights

OutdOOR AiR HANdLiNg uNitS

iNdOOR AiR HANdLiNg uNitS

RM SeRieS

RL SeRieS

H2 SeRieS

HB SeRieS

RN SeRieS

M2 SeRieS

M3 SeRieS

F1 SeRieS

V2 SeRieS

CONdeNSiNg uNitS

BOiLeR

CHiLLeRS

CL SeRieS

CA SeRieS

CC SeRieS

CB SeRieS

BL SeRieS

LL SeRieS 
AiR–CONdeNSed

LL SeRieS 
eVApORAtiVe– CONdeNSed

ROOFtOp uNitS

CuStOM uNitS

dt SeRieS

RL SeRieS

RN SeRieS

RM SeRieS

HB SeRieS

MN 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, boilers, 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.

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 Liabilities
Long–Term Debt
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 Ratio2
Current Ratio
Year–End Price Earnings Ratio1

 2007 

2006

2005

2004

2003

$262,517  
$57,369  
$35,666  
$10  
$8  
$9,665  
$35,343  
$23,156  
$1.24  
$1.22  

$38,788  
$76,295  
$60,770  
$63,579  
$879  
$137,140  
$37,507  
$239  
$95,420  

$231,460  
$43,890  
$25,831  
$81  
$24  
$9,146  
$26,198  
$17,133  
$0.93  
$0.90  

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

$185,195  
$35,291  
$17,814  
$16  
$67  
$8,503  
$18,332  
$11,462  
$0.62  
$0.60  

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

$171,885  
$26,864  
$11,650  
$38  
$183  
$5,732  
$12,379  
$7,521  
$0.40  
$0.39  

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

$147,890
$35,885
$20,976
$21
$346
$5,435
$21,853
$14,227
$0.75
$0.72

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

$5.29  

$4.95  

$4.33  

$3.84  

$3.59

$31,247  

$19,428  

$(10,751)
$(20,036)

$591  

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

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

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

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

24.8%
16.9%
13.5%
8.8%
0.4 
1.1 
2.0 
16 

20.0%
13.2%
11.3%
7.4%
0.4 
1.1 
2.1 
19 

15.2%
10.1%
9.9%
6.2%
0.4 
1.2 
2.1 
20 

10.9%
7.1%
7.2%
4.4%
0.5 
1.1 
2.0 
27 

21.9%
13.9%
14.8%
9.6%
0.5 
1.3 
2.2
18 

1 Reflects 3–for–2 stock splits in August 2007. 2 Cash, cash investments + receivables/current liabilities.3 Actual dollars and diluted number of shares for all years reflect both 3–for–2 stock splits.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Norman H. Asbjornson President/CEO

President’s Letter   

Dear Shareholder,

Aided  by  continuing  strength 

in  non-residential 

construction  in 2007, which  increased 15.7% to $671.1 

billion from $579.9 billion in 2006, and particularly  

in  the  new  office,  manufacturing,  healthcare  and 

educational  sectors,  AAON  once  again  attained 

record levels in both sales and earnings this past year. 

Our  gross  margins  widened,  benefiting  from  price 

increases  and  relatively  stable  raw  material  prices, 

and, despite higher SG&A expenses, we witnessed a 

strong improvement in operating margins.

Assisted by strong demand for both our large tonnage 

units (45-230 tons) and from our chiller products, we 

posted  a  13.4%  increase  in  total  sales  to  $262.5 

million,  and  a  dividend  payout  of  $5  million,  while 

The Company’s 

having  minimal  long-term  debt.  In  1999  and  2002, 

continued strong 

the  Company  initiated  stock  repurchase  programs 

performance has 

pursuant  to  which  1.1  million  shares  and  1.9  million 

not gone unnoticed. 

shares,  respectively,  were  repurchased  at  a  total  cost 

In October, AAON was 

of  $36  million.    On  February  14,  2006,  the  2002 

selected to the Forbes Best 

stock  repurchase  program  was  suspended  and  the 

Small Company list, ranking 

Board of Directors voted to initiate a semi-annual cash 

133rd. Inclusion on the Forbes list 

dividend. On August 21, 2007, we paid a 50% stock 

requires companies to meet a series 

dividend (3-2 stock split), the third such split in the past 

of financial benchmarks including annual 

six years. Furthermore, we raised our dividend by 20%, 

sales criteria and profit margins greater than 5%, 

on  a  post-split  basis,  to  $0.32  per  share  annually.  In 

for both the last five years and the last 12 months. This 

November,  the  Board  of  Directors  authorized  a  new 

marks  the  fourth  time  AAON  has  been  honored  with 

repurchase program of up to 10% (approximately 1.8 

this  listing,  with  the  three  previous  consecutive  listings 

million  shares)  of  the  outstanding  common  stock.  By 

in 2000-2002.

the end of the year we had acquired 690,300 shares 

million from $231.5 million. Gross profits rose 30.8% 

a  three-day  business  interruption  in  December  at  the 

at  a  cost  of  approximately  $13.0  million.  In  addition, 

CAPITAL EXPENDITURES

to  $57.4  million  (21.9%  of  sales)  from  $43.9  million 

Tulsa  facility  due  to  a  severe  ice  storm.  These  factors 

we  bought  260,625  of  shares  of  stock  from  certain 

(19.0%  of  sales).  SG&A  expenses  climbed  19.9%  to 

cost us approximately $1.6 million or $0.08 per share.

directors  of  the  Company  and  131,811  shares  from 

We  continue  to  plan  for  future  growth  by  increasing 

$21.7 million (8.3% of sales) from $18.1 million (7.8% 

AAON’s 401(k) savings and investment plan by which 

both  our  plant  and  manufacturing  capacity.  In  2007, 

of  sales).  This  increase  was  due  primarily  to  higher 

While  we  took  important  steps  during  the  past  year 

employee  participants  are  entitled  to  have  shares  of 

we  spent  $10.9  million  on  capital  improvements  with 

warranty accruals based on increased sales and from 

to price our custom product line more realistically, the 

AAON  stock  in  their  accounts  sold  to  the  Company 

the majority of these expenditures directed toward the 

the extension of warranties on our product line from 

business  (based  in  Burlington,  Ontario,  Canada)  was 

to  provide  diversification  of  their  investments.  We 

purchase of new machinery to expand both our sheet 

14  to  18  months.  Nevertheless,  operating  income 

severely impacted by currency translations which had a 

funded the stock purchases out of free cash flow. We 

metal  fabricating  and  coil  manufacturing  capabilities. 

gained 38.4% to $35.7 million (13.6% of sales) from 

negative effect on the bottom line. We are carefully and 

believe our sizeable cash flow can be best utilized by 

For  2008,  our  capital  expenditure  budget  stands  at 

$25.8  million  (11.1%  of  sales).  Net  income  climbed 

extensively re-evaluating this business.

repurchasing our stock at prices that do not reflect the 

$7-10 million, with emphasis on continuing to expand 

35.7%  to  $23.2  million  or  $1.22  per  diluted  share 

Company’s true value.

from $17.1 million or $0.90 per diluted share. The per 

STRONG FINANCIAL CONDITION

our plant capacity. We plan to double our RL (45-230 

tons)  production  line,  double  our  RN  (26-70  tons) 

share calculations are based upon 18.9 million diluted 

Total shareholders’ equity climbed to $95.4 million (up 

production  line  and  add  two  new  air  handler  lines. 

shares  outstanding  in  2007  and  19  million  diluted 

Our  financial  condition  at  December  31,  2007,  was 

4.1%)  equal  to  $5.29  per  share  compared  to  $91.6 

In  addition  we  plan  to  enlarge  our  storage  space  to 

shares  outstanding  in  2006.  It  should  be  noted  that 

strong.  Total  current  assets  were  $76.3  million  with  a 

million or $4.95 per share a year earlier. In 2006, our 

accommodate our new split system product, a 2 to 5 

our net income and earnings per share performance 

current  ratio  of  2:1.    We  maintained  our  strong  liquid 

return on average shareholders’ equity was 20% and 

ton unit which can be used in both the light commercial 

in 2007 were negatively affected by both the losses 

position despite $10.9 million of capital expenditures, 

for 2007 this important measurement reached 24.8%. 

or residential markets.

incurred in our custom manufacturing business and by 

the repurchase of our common stock at a cost of $20.8 

HB Series

of our total sales include the new foam cabinetry as a 

WHAT’S NEW!!

GROWTH THROUGH INNOVATION

standard feature and we anticipate by the third quarter 

We realize our future growth will be partially dependent 

upon  our  ability  to  react,  respond  and  manufacture 

products  that  meet  both  the  regulatory  and  customer 

demands in today’s marketplace. The complete redesign 

of our existing product line which took place over the 

past three years has enabled us to introduce innovative 

products  that  are  more  environmentally  friendly  and 

energy efficient. In addition we are planning to introduce 

new products that will give us entry into new markets.

At  the  end  of  2007  our  manufacturing  capabilities 

could  accommodate  annual  volume  of  up  to  $330 

million  to  $350  million  depending  upon  our  product 

mix. Ten years ago, we purchased a 40-acre tract of 

land including a 457,000 square foot manufacturing/

warehouse building. That property has been expanded 

to  563,000  square  feet  and  at  the  end  of  2007  we 

utilized 39% of this property with the remainder leased 

to a third party. Eventually, we expect to utilize this total 

space which could double our manufacturing capacity 

to $700-750 million.

We  consistently  recognize  the  need  to  manufacture 

products  which  adhere 

to 

regulatory  mandates 

regarding 

the  environment. 

In  addition, 

there 

is 

By   2010,  the  EPA  has  mandated   

that    all      manufactured    HVAC  

equipment  must  use  refrigerants 

that  do  not  contain  chlorine, 

thereby  reducing  the  affect  of 

ozone depletion in the atmosphere. 

In 2001, we introduced a number 

of  products  designed 

to  use 

R410A, an environmentally friendly 

refrigerant. By the end of last year, 

our  entire  product  line,  including 

our  new  chiller  product,  was 

completely R410A compatible.

increasing  demand  to  manufacture  products  that  are 

Over  the  past  two  years,  AAON 

more energy efficient and that reduce the utilization of 

water. During the past three years we have spent $6.1 

million  on  research  and  development  engineering. 

Our  growing  market  share  is  a  testament  that  our 

Company  continues  to  be  recognized  as  one  of  the 

most technologically innovative in the industry.

has become the industry leader in the manufacture of 

double wall composite foam panels for the cabinets of 

our  products.  The  use  of  foam  rather  than  fiberglass 

creates a cabinet which is lighter and a better insulator. 

The  R-value  of  these  new  cabinets  is  over  four  times 

the traditional fiberglass product. Approximately 32% 

of 2009, our entire product line will be manufactured 

We  are  excited  by  the  introduction  of  a  number  of 

using foam cabinetry as a standard feature.

new products this year, as well as the addition of new 

components to our existing product lines.

In  2005,  we  introduced  our  direct  drive  blower 

assemblies that operate without drive belts, eliminating 

The Digital Scroll Compressor 

the  need  to  adjust  or  replace  fan  belts.  Additionally, 

these  products  operate  with  our  airfoil  backward 

This type of compressor is presently being offered as an 

curved  fan  creating  increased  efficiency  over  the 

option on both our RN and RM product lines. These two 

traditional  fan  design.  Presently,  these  assemblies  are 

product lines constitute approximately 60% of our total 

available on approximately 32% of our sales. By 2010, 

sales. This compressor varies the volume of refrigerant 

the remainder of our product line will include the direct

that  flows  through  the  cooling  system,  allowing  the 

 drive blower assemblies as a standard feature.

compressor to match the load needed by the unit. This 

LL Series

unit has a tighter temperature control than conventional 

products, enabling the compressor to modulate from 10 

to 100% of its cooling capacity. 

In  addition,  the  compressor  will 

run  for  a  longer  period  of  time, 

thereby  dehumidifying  the  air 

and  cycling 

the  compressor 

on  and  off  less,  which  creates 

sizeable  energy  savings.  This  is 

a R410A system.

In 2001, we introduced a 
number of products designed
 to use R410A, an environmentally 
friendly refrigerant. By the 
end of last year, our entire 
product line including our 
new chiller product, was 
completely R410A compatible.

RN Series

Residential Split System

Commercial Self Contained (“Floor by Floor”)

SALES REPRESENTATIVES’ PERFORMANCE

OUR EMPLOYEES

We  have  begun  to  market  our  2-5  ton  split  system 

This new product enables AAON to enter into the high-

Our sales representatives continue to be the significant 

The ongoing success of our Company can be directly 

product  directed  toward  the  residential  and  light 

rise office building market. It is available in 20-80 tons 

driver of our revenue growth as well as enabling us to 

attributed  to  our  employees.  To  that  end  we  have 

commercial customer. This product is a R410A system 

and  is  manufactured  with  double  wall  cabinetry  and 

further diversify our customer mix. At the end of 2007, 

created  a  number  of  programs  which  provide  for 

and is equipped with our direct drive blower assembly. 

direct  drive  blower  assemblies.  Its  modular  design 

our representatives’ network had 106 offices in all 50 

their  financial  enhancement,  health  care  needs  and 

It has a SEER rating of up to 17.Optional in the product 

for  retrofit  and  renovation  projects  will  enable  the 

states and Canada. Our manufacturer representatives 

vocational enrichment.

is  an  additional  coil  used  for  dehumidification.  This 

installer  to  negotiate  existing  hallways,  elevators  and 

produced  a  gain  of  13.9%  of  sales  in  2007  sales  to 

allows  the  unit  to  control  temperature  and  humidity 

doorways. This product offers tenants of each floor the 

$238  million  or  91%  of  total  corporate  sales.  This 

Our most powerful motivational tool is the Profit Sharing 

independently.  By  dehumidifying  the  indoor  air,  mold 

ability to control the energy usage of their floor with a 

compares with 2006 sales of $209 million or 90.3% of 

program. For employees who work from the beginning 

and mildew can be prevented. We believe this optional 

commercial self-contained unit. Sizeable downtime can 

total corporate sales. Our expanded innovative product 

to  the  end  of  a  calendar  quarter,  we  distribute  10% 

feature is unique to the residential market and provides 

be reduced versus a system using a chiller that serves 

line  will  enable  the  manufacturer  representatives  to 

of  the  Company’s  pre-tax  earnings.  This  bonus  is 

us with significant growth potential.

multiple floors.

increase  their  presence  in  existing  markets  as  well  as 

calculated  at  the  operating  subsidiary  level  and  all 

gain entrance into new markets such as residential and 

eligible  employees  share  equally  in  those  funds.  This 

high-rise office buildings. We expect our manufacturer 

program helps to focus employees on the profitability 

representative network will continue to make substantial 

of  the  Company,  whereas  the  equity  owned  by  the 

contributions to AAON’s future growth.

employees through the 401(k) plan ties them to longer-

term shareholder interests.

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

September
Purchase of John Zink Air 
Conditioning Division.

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.

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

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.

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

June
3-for-2 stock split.

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

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

November
Introduction of light 
commercial/residential 
product lines.

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

March
Modular air 
handlerproduct 
extended to
50,000 CFM

October
AAON Listed 
in Forbes ‘200 
Best Small 
Companies’

1988

89

1990

91

1992

93

1994

95

1996

97

1998

99

2000

01

2002

03

2004

05

2006

07

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

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

August
AAON, an 
Oklahoma corporation, 
was founded.

November
Listed on the 
NASDAQ National 
Market System.

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

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

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

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

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

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

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

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

December
AAON rings 
closing bell at
NASDAQ

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

August
3-for-2 
stock split

Since  2004,  we  have  made  changes  to  our  401(k) 

We have expanded our efforts to engage employees 

OUTLOOK

plan  by  eliminating  the  waiting  period,  increasing 

in the cost control process by adding a high-deductible 

the  Company’s  matching  contributions,  automatically 

health  plan  option  matched  with  available  Health 

Concerns regarding the environment as well as energy and 

enrolling  employees  and 

increasing  permitted 

Savings  Accounts  and  a  Company  match  which 

water conservation have increased significantly in the past 

participant  contributions.  Furthermore,  we  allow 

allow  employees  to  directly  and  immediately  benefit 

few years and, we believe, will accelerate in the future. We 

participants to sell and thereby diversify their holdings 

from  improved  health  care  cost  trends  while  building 

have  and  will  continue  to  provide  the  necessary  capital 

of AAON stock provided by the Company’s matching 

a  cushion  for  future  health  care  needs.  Aggressive 

and  manufacturing  effort  to  produce  technologically 

contributions. As a result of these changes, participation 

management  of  our  health  programs  has  allowed  us 

innovative products that address these concerns in order 

in the plan has increased nearly 50% and contributions 

to maintain competitive plan costs while promoting the 

to enable us to sustain our growth. 

by  the  Company  have  doubled.  The  plan  now  owns 

wellness of our employees.

over 3% of the Company’s outstanding stock.

We have attained a unique reputation as a manufacturer 

Lastly,  we  support  continuing  training  through  both 

with some of the most advanced and innovative products 

We  continue  to  support  and  encourage  adequate 

on-site  and  off-site  options.  We  provide  a  variety  of 

in  our  industry.  This  lofty  position  could  not  have  been 

retirement planning, which helps our employees reduce 

industry-specific training at our facilities and encourage 

achieved without the cooperation and commitment of our 

some of their longer term concerns.

the  pursuit  of  a  broader-range  of  skills  through  our 

customers,  sales  representatives  and  shareholders,  and 

We provide a health insurance program focused upon 

personal growth of our employees, we intend to develop 

whose names appear at the end of this report. On behalf 

wellness  and  prevention,  a  Health  Risk  Assessment 

knowledgeable  personnel  who  can  be  promoted 

of the Board of Directors, we thank all of you for your past 

program to allow our employees to better understand 

through  the  organization  to  provide  a  deep  pool  of 

contributions and continuing belief in AAON.

tuition  reimbursement  program.  By  supporting  the 

particularly,  our  loyal  and  dedicated  employees,  all  of 

their  particular  needs  and  to  help  them  determine 

talent. We  believe that the efforts to train employees, 

the  correct  approach  to  solving  their  concerns,  as 

not only for their current position but also for potential 

Sincerely,

well  as  on-site  clinics  at  our  U.S.  facilities  to  provide 

advancement,  will  benefit  our  shareholders  through 

convenient,  basic  care  and  enable  employees  to 

increased profitability.

manage risks identified by the Health Risk Assessment. 

Norman H. Asbjornson

President & CEO

April 14, 2008

M2 Series

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10–K

Table of Contents

3
[  ] 

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Item Number and Caption                                         

Page Number

[   ] 

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____________________________ to _____________________________

For the fiscal year ended December 31, 2007
or

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.

   Yes           No

3

   Yes           No

3

3   Yes           No

     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.       

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, 2007) 
was $397.3 million.

     As of February 29, 2008, registrant had outstanding a total of 18,061,272 shares of its $.004 par value Common Stock.

DOCUMENTS INCORPORATED BY REFERENCE

PART I

1.     Business. 1

1A.  Risk Factors. 

1B.   Unresolved Staff Comments. 5

2.     Properties. 6

3.     Legal Proceedings. 6

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 of Equity Securities. 7

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

4

6

10

11

19

19

19

19

21

22

22

22

22

24

Portions of registrant’s definitive Proxy Statement to be filed in connection with the Annual Meeting of Stockholders to be held May 20, 2008, 

are incorporated into Part III.

15.   Exhibits and Financial Statement Schedules.   

   25      

                
                
 
 
 
 
2007 AAON Annual Report

PART I

Item 1. Business.

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 heat recovery option applicable to its RM, RN and RL units, as well as its M2, M3 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 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 2007.

Major Customers

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.

Sources and Availability of Raw Materials

No customer accounted for 10% of the Company’s sales during 2007, 2006 or 2005.

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 2007 level of sales of $263 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.

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 F1 and H/V Series, the modular (M2 and M3) Series and a customized 
NJ Series. 

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, negatively impacted profit margins.

Distribution

The Company employs a sales staff of 20 individuals  and utilizes approximately  91 independent manufacturer representatives’ 
organizations having 106 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.

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  its  106  sales 
offices 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 18 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), F1, H/V, M2, M3 and NJ (air handlers), LL (chillers), CB (condensing units) 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 approximately $2,483,000, $1,974,000 and $1,681,000 in 2007, 2006 
and 2005.

1

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2007 AAON Annual Report

Backlog

Item 1A. Risk Factors.

The Company had a current backlog as of March 1, 2008, of approximately $51,365,000 compared to $62,798,000 at March 
1, 2007. The current backlog consists of orders considered by management to be firm and substantially all of which will be filled by 
August 1, 2008; however, the orders are subject to cancellation by the customers.

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 2008.

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 Ingersoll–Rand Company Limited, 
Lennox International, Inc., Mestek Inc, LSB Industries and Carrier Corporation, a subsidiary of United Technologies Corporation. 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.

Employees

As of March 1, 2008, the Company had 1,313 permanent employees and 78 temporary employees, 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.

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 Heating, Ventilation, and Air Conditioning (“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.

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2007 AAON Annual Report

The loss of Norman H. Asbjornson could impair the growth of our business.

Item 2. Properties.

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.

Item 1B. Unresolved Staff Comments.

None.

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.

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.

Production at these facilities averaged approximately $21.9 million per month in 2007, which is approximately 62% of the estimated 
current production capacity. Management deems its facilities to be nearly ideal for the type of products being manufactured by the 
Company.

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, 2007, through December 31, 2007.

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2007 AAON Annual Report

Part II

On  November  7,  2006,  the  Board  of  Directors  authorized  the  Company  to  repurchase  shares  from  certain  directors  following 
their exercise of stock options. 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 directors. Through December 31, 2007, the Company repurchased 260,625 shares for 
an aggregate price of $5,232,188, or an average price of $20.08 per share. The Company purchases the shares at the current 
market price.

Repurchases during the fourth quarter of 2007 were as follows:

                         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

Period

Month #1 –
October 1–31, 2007

Month #2 – 
November 1–30, 2007

Month #3 – 
December 1–31, 2007

   20,303

$18.60

  20,303

 372,688

$18.50

372,688

330,747

$19.27

330,747

–

–

–

–

Total

723,738

$18.85

723,738

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 National 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

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

March 31, 2007 
June 30, 2007 
September 30, 2007
December 31, 2007

         High (1)

    Low (1)

  $  15.94   $  12.07
  $  19.02   $  13.97
  $  17.87   $  14.27
  $  19.34   $  14.32

  $  19.67   $  16.46
  $  21.38   $  16.47
  $  23.01   $  18.61
  $  21.96   $  16.60

(1) All prices adjusted to reflect a 3 for 2 stock split effected August 21, 2007

On February 29, 2008, there were 735 holders of record, and 2,860 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 2007, dividends were declared 
to shareholders of record at the close of business on June 11, 2007 and paid on July 2, 2007 and declared to shareholders of 
record at the close of business on December 13, 2007 and paid on January 3, 2008. Following the 3 for 2 stock split in August 
2007 (which was effected by means of a 50% stock dividend), the Board voted to increase the post–split dividend by 20% to $0.16 
per share. The Company paid cash dividends of approximately $4,998,000 and declared dividends payable of approximately 
$2,943,000 for the year ended December 31, 2007. 

Following repurchases of approximately 12% of its outstanding Common Stock between September 1999 and September 2001, 
the Company announced and began another stock repurchase program on October 17, 2002, targeting repurchases of up to 
approximately 1,987,500 shares of its outstanding stock. On February 14, 2006, the Board of Directors approved the suspension 
of the Company’s repurchase program. Through December 31, 2006, the Company had repurchased a total of 1,886,796 shares 
under this program for an aggregate price of $22,034,568, or an average of $11.68 per share. The Company purchased the 
shares at the current market price.

On November 6, 2007, the Board authorized a new stock buyback program, targeting repurchases of up to approximately 10% 
(1.8 million shares) of the outstanding stock of the Company from time to time in open market transactions at prevailing market prices. 
Between November 6, 2007 and December 31, 2007, the Company repurchased a total of 690,300 shares under this program 
for an aggregate price of $13,012,199, or an average of $18.85 per share. 

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, 2007, the Company repurchased 501,075 shares for an aggregate 
price of $7,712,287, or an average price of $15.39 per share. The Company purchases the shares at the current market price.

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2007 AAON Annual Report

Stock Performance Graph (1)

Item 6. Selected Financial Data.

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, 2002, 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.

Comparison of 5 Year Cumulative Total Return
Assumes Initial Investment of $100

300.00

250.00

200.00

150.00

100.00

50.00

0.00

2002 

   2003  

     2004         

         2005 

 2006   

    2007

AAON INC               NASDAQ Composite - Total Returns 

          Peer Group

The  peer  group  consists  of  Trane,  Inc.;  Lennox  International,  Inc.;  Mestek,  Inc.;  LSB  Industries,  Inc.;  and  United  Technologies 
Corporation, all of which are in the business of manufacturing air conditioning and heat exchange equipment. 

(1) Securities and Exchange Commission (“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.

Results of Operations:

Net sales
Net income
Earnings per share:
     Basic
     Diluted  
Cash dividends declared per 
common share
Weighted average shares
outstanding:
Basic
  Diluted

Financial Position at End of 
Fiscal Year:

         Year Ended December 31,

2007

2006

2005

2004

2003

          (in thousands, except per share data)

$  262,517 $  231,460 $  185,195 $  171,885 $  147,890
7,521 $  14,227
$ 

23,156 $ 

11,462 $ 

17,133 $ 

$ 
$ 

$ 

1.24 $ 
1.22 $ 

0.93 $ 
0.90 $ 

0.62 $ 
0.60 $ 

0.40 $ 
0.39 $ 

0.75
0.72

0.32 $ 

0.32 $ 

      – $ 

      – $ 

      –

18,628
18,927

18,456
18,968

18,510
19,125

18,653
19,385

19,027
19,877

   December 31,

2007

2006

2005

2004

2003

          (in thousands)

Working capital
Total assets
Long–term and current debt
Total stockholders’ equity

$ 
$ 
$ 
$ 

38,788 $ 
36,356 $ 
137,140 $  130,056 $ 
59 $ 
91,592 $ 

330 $ 
95,420 $ 

33,372 $ 
27,939 $  35,369
113,606 $  105,227 $  102,085
         –
       167 $ 
67,428
79,495 $ 

275 $ 
71,171 $ 

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 August 21, 2007, the Company completed a three–
for–two stock split. The shares outstanding and earnings per share disclosures have been restated to reflect the stock split.

9

10

 
 
 
 
 
 
 
2007 AAON 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 commercial industries. AAON markets units to all 50 states in the United 
States and certain provinces in Canada. Foreign sales are less than 5% of the Company’s 2007 sales 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 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.

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 50% for steel, 75% for aluminum and 190% for copper from 2005 to 2007. 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 increases 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  factors.  The  Company’s  warranty  on  its 
products is: for parts only, the earlier of one year from the date of first use or 18 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. Warranty charges on heat exchangers do not occur frequently.

The office facilities of AAON, Inc. 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 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, containing 258,000 
square feet (251,000 sq. ft. of manufacturing/warehouse and 7,000 sq. ft. of office space). An additional 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 2007, 2006 
and 2005:

     2007

Year Ended December 31,

            2006

(in thousands)

            2005

$262,517
205,148
57,369

100.0%
78.1%
21.9%

$231,460
187,570
43,890

100.0%  
81.0%  
19.0%  

$185,195
149,904
35,291

21,703
35,666
(10)
8

8.3%
13.6%
0.0%
0.0%

18,059
25,831
(81)
         24  

7.8% 
11.2%  
0.0%
  0.0%

17,477
17,814
(16)
         67 

100.0% 
81.0%
19.0%

  9.4%
9.6%
0.0%
      0.0%

      (321)

(0.1%)

424

 0.1%

467

 0.3%

35,343      
12,187
$23,156

13.5%
4.7%
8.8%

26,198
9,065
$17,133

11.3%
3.9%  
7.4%

 $

18,332
6,870
11,462

9.9%
3.7% 
6.2% 

Net sales
Cost of sales
Gross profit
Selling, general and 
   administrative expenses
Income from operations
Interest expense 
Interest income
Other income (expense),
net
Income before income     
   taxes
Income tax provision
Net income

Results of Operations

Key events impacting AAON’s cash balance, financial condition, and results of operations in 2007 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 initiated a program of semi–annual cash dividend payments. Cash payments of 
$5.0 million were made in 2007 ($2.5 million paid in January and July 2007, respectively), and $2.9 million was accrued 
as a liability for payment in January 2008. 

• 

•  Stock repurchases of AAON stock from employee’s 401(k) savings and investments plan was authorized in 2005. Stock 
repurchases of AAON stock from directors was authorized in 2006. Stock repurchases of AAON stock from the open 
market was authorized and initiated in November 2007.  Total repurchases resulted in cash payments of $20.8 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 2007 from options exercised was $2.4 million. 

•  Borrowings under the line of credit were approximately $12.1 million, and approximately $10,000 in interest expense was 
paid in 2007. 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 2007 there were no borrowings owed on the line of credit. 
•  Purchases of equipment and renovations to manufacturing facilities remained a priority. AAON’s capital expenditures were 
$10.9 million. Equipment purchases create significant efficiencies, lower production costs and allow continued growth in 
production. The Company currently estimates to dedicate $7.0 million to $10.0 million to capital expenditures in 2008 for 
continued growth. 

11

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2007 AAON Annual Report

Net Sales

Other Income (Expense)

Net sales were $262.5 million, $231.5 million and $185.2 million in 2007, 2006 and 2005. The highest level of sales occurred in 2007. 
This increase in sales of $31.0 million or 13.4% was attributable to an increase in volume of product sold related to the Company’s new and 
redesigned products being favorably received by its customers, active marketing by sales representatives and pricing strategies implemented on 
90% of the Company’s product lines in the second quarter in order to keep up with increasing raw materials costs. New commercial construction 
steadily improved throughout 2007 and 2006, contributing to growth of the market. The increase in sales in 2006 of $46.3 million or 25% 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. Management anticipates continued growth throughout 2008.

Gross Profit

Gross margins in 2007, 2006 and 2005 were $57.4 million, $43.9 million and $35.3 million, respectively.  As a percentage of sales, gross 
margins were 21.9%, 19.0% and 19.0% for the years ended 2007, 2006 and 2005. The increase in gross profit for 2007, resulted from pricing 
strategies becoming fully utilized and production and labor efficiencies, as sales volume increased. The Company saw a leveling off of raw 
material increases in the first half of the year, which also contributed to higher gross profits. The increase in margins was attained despite increased 
pricing on certain materials in the last half of the year. Management anticipates the moderation of commodity costs through relationships with 
suppliers and price decreases in certain commodity costs will only enhance already increased margins. The stable gross profit percentage from 
2005 to 2006 resulted from adjusting pricing strategies for continued high material costs for raw materials and components. Certain labor 
efficiencies were also experienced in 2006 adding to the positive gross margin. Due to an increase in the volume of sales, actual gross profit for 
2007 increased by $13.5 million from 2006, and by $8.6 million from 2005 to 2006.  

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 pricing increased approximately 50% for steel, 75% for aluminum and 190% for copper from 2005 to 2007, causing 
increased inventory costs. The Company also purchases from other domestic manufacturers certain components, including compressors, electric 
motors and electrical controls used in its products. The suppliers of these components are significantly 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 2005 to 2007 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. 

Selling, General and Administrative Expenses

Selling, general and administrative expenses were $21.7 million, $18.1 million and $17.5 million for the years ended 2007, 2006 and 2005. 
The increase in selling, general and administrative expenses is due primarily to an increase in warranty expense caused by increased sales 
and an increase in profit sharing resulting from an increase in net income. In 2006, 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, increases in salaries for selling, 
general and administrative personnel and 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 Statement of Financial Accounting Standards (“SFAS”) No. 123(R), 
Share–Based Payment (“SFAS 123(R)”). 

Interest Expense

Interest expense was approximately $10,000, $81,000 and $16,000 for the years ended 2007, 2006 and 2005. The decrease in interest 
expense of approximately $71,000 in 2007 was due to less average borrowings under the revolving credit facility as a result of an increase 
in net cash provided by operations. The increase in interest expense of approximately $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  (6.84%  at  December  31,  2007).  Average  borrowings  under  the 
revolving credit facility are typically paid in full within the month of borrowing or the following month. 

Interest Income

Interest income was approximately $8,000, $24,000 and $67,000 in 2007, 2006 and 2005 respectively. The decrease in interest income is 
due to lower balances in certificates of deposit and short–term money markets.  

Other expense was approximately $321,000 in 2007. Other income (expense) also includes foreign currency gains and losses that 
result from operations in Canada. The weakened U.S. dollar was the primary reason for the decrease in other income (expense) in 
2007. Other income was approximately $424,000 and $467,000 in 2006 and 2005, respectively. Other income is attributable 
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 Provided by Operating Activities. Net cash provided from operating activities has fluctuated from year to year. Net cash 
provided  by  operating  activities  was  $31.2  million,  $19.4  million  and  $12.0  million  in  fiscal  years  2007,  2006  and  2005, 
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 2007 was $23.2 million, an increase of $6.1 million from 2006. The increase in net income during fiscal 
years 2007 and 2006 compared to fiscal years 2006 and 2005 was primarily due 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 industry. 

Depreciation expense was $9.7 million, $9.1 million and $8.5 million for the years ended December 31, 2007, 2006 and 2005, 
respectively. The continued increase is due to capital expenditure purchases for growth and production efficiencies. The Company 
adopted SFAS 123(R) in 2006, which decreased net income by $0.6 million in 2007 and by $0.5 million in 2006. Share–based 
compensation was not applicable in 2005. 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 2007, 2006 and 2005 from the increase in sales. Accounts receivable 
increased by $1.6 million at December 31, 2007 compared to December 31, 2006. The increase at December 31, 2006 from 
December 31, 2005 was $4.3 million. 

Inventories increased by $2.1 million, $5.8 million and $2.8 million at December 31, 2007, 2006 and 2005, respectively. The 
leading factor in the increase is primarily related to the valuation of inventories since 2005 due to higher raw material and component 
parts costs. The increase is also attributable to procurement of inventory to accommodate an increase of sales. 

Prepaid expenses increased by $0.2 million as compared to a decrease of $0.8 million at December 31, 2006 and an increase of 
$0.6 million at December 31, 2005. The increase in 2007 was related to multiple accounts, none of which experienced a significant 
increase. The decrease in 2006 was primarily related to prepaid copper inventory at 2005 pricing for 2006 material requirements 
that was included in prepaid expenses at December 31, 2005. 

Accounts payable and accrued liabilities increased by $4.9 million, $4.3 million and $2.3 million at December 31, 2007, 2006 
and 2005. The increase in 2007 is due to an increase in commissions payable related to the increase in sales, timing of commissions 
payable and payments to vendors. The change from December 31, 2006, compared to December 31, 2005, was attributable to 
timing of commissions payable and payments to vendors.

13

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2007 AAON Annual Report

Cash Flows Used in Investing Activities. Cash flows used in investing activities were $10.8 million, $16.8 million and $8.2 million in 
2007, 2006 and 2005, respectively. The decrease in cash flows used in investing activities in 2007 was $6.0 million, and primarily 
related to a decrease in capital expenditures. The increase in cash flows used in investing activities in 2006 was 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. Management 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 $7.0 million to $10.0 million in 2008 
for equipment requirements, a building renovation and a building expansion. The Company expects the cash requirements to be 
provided from cash flows from operations.

In 2007, the Company did not invest in any certificates of deposits. In 2006, the Company invested a total of $2 million in certificates 
of deposit, the latest one maturing in July 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 $3 million in a certificate of deposit that matured in the first quarter of 
2005. 

Cash Flows Used in Financing Activities. Cash flows used in financing activities were $20.0 million, $3.3 million and $4.2 million 
in 2007, 2006 and 2005, 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 $12.1 million, and $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, 2007 and 2006, respectively. The Company utilized the revolving line of credit in 2005 
for short–term cash demands in the amount of $21.1 million. 

The Company received cash from stock options exercised of $2.4 million and $1.3 million and classified the tax benefit of stock 
options exercised of $3.0 million and $1.9 million in financing activities in 2007 and 2006, respectively. The Company received 
cash from stock options exercised for the year ended 2005 of approximately $0.8 million.

The Company repurchased shares of stock under the Board of Directors authorized stock buyback programs in 2007, 2006 and 
2005. The Company repurchased shares of stock from employees’ 401(k) savings and investment plan, Directors, and the open 
market in 2007 in the amount of $20.8 million for 1,082,736 shares of stock. The Company repurchased shares of stock from 
employees’ 401(k) savings and investment plan and Directors in 2006 in the amount of $3.9 million for 250,500 shares of stock. 
The Company repurchased shares of stock from employees’ 401(k) savings and investment plan in 2005 in the amount of $4.9 
million for 274,350 shares of stock.

In February 2006, the Board of Directors authorized a semi–annual cash dividend payment. Cash dividend payments of $5.0 
million were made in 2007, and $2.9 million in dividends were declared and accrued as a liability in December 2007 for payment 
in  January  2008.  Cash  dividend  payments  of  $2.5  million  were  made  in  2006,  and  $2.5  million  in  dividends  were  declared 
and accrued as a liability in December 2006 for payment in January 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 $1.3 million. The letter of 
credit is a requirement of the Company’s workers compensation insurance and was extended in 2007 and will expire on December 
31, 2008. 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 (6.84% at December 31, 2007). No fees are associated with the unused portion of the committed amount. 
At December 31, 2007 and 2006, the Company had no borrowings outstanding under the revolving credit facility. Borrowings 
available under the revolving credit facility at December 31, 2007, were $13.9 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, 2007 and 2006, the Company 
was in compliance with its financial ratio covenants. On July 30, 2007, the Company renewed the line of credit with a maturity date 
of July 30, 2008. 

On  July  12,  2007,  the  Company’s  Board  of  Directors  approved  a  three–for–two  stock  split  of  AAON’s  outstanding  stock  for 
shareholders of record as of August 3, 2007. The stock split was treated as a 50% stock dividend which was distributed on August 
21, 2007. As a result of the stock split, the Company adjusted the dividend paid per share to $0.16. The applicable share and per 
share data for all periods included herein has been restated to reflect the stock split 

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 2008 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, 2007, see Note 4 to the Consolidated Financial Statements, Revolving Credit Facility.

15

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2007 AAON Annual Report

Commitments and Contractual Agreements

The following table summarizes the Company’s long–term debt and other contractual agreements as of December 31, 2007:

 Payments Due By Period
              (in thousands)

Contractual Financial Obligations

Total

Less Than 
1 Year

1–3 
Years

4–5 
Years

After 5 
years

Long–term debt and capital leases
Total contractual obligations

$ 
$ 

258
258

$ 
$ 

91
91

$ 
$ 

167
167

$ 
$ 

–
–

$ 
$ 

–
–

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.

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.

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. 

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

Allowance for Doubtful Accounts–The Company’s allowance for doubtful accounts is estimated to cover the risk of loss related to 
accounts receivable.  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 customer 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 Company’s Consolidated Financial Statements. 

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 18 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. Warranty expense is estimated based on the Company’s warranty period, historical warranty trends and 
associated  costs,  and  any  known  identifiable  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,  revisions  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 historical claims paid and potential significant 
future claims. The plan is supplemented by employee contributions and an excess policy for claims over $100,000 each.

Stock Compensation–The Company adopted SFAS 123(R), 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 SFAS 123(R) 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. 

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

New Accounting Pronouncements

In July 2006, the FASB released Financial Interpretation No. 48, Accounting for Uncertainty in Income Taxes, an Interpretation of SFAS 
No. 109 (“FIN 48”). 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. The Company adopted FIN 48 on January 1, 2007. The adoption of FIN 48 did not have a 
material impact on the Company’s Consolidated Financial Statements.

In September 2006, the FASB released SFAS No. 157, Fair Value Measurements (“SFAS 157”). 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 February, 2007, the FASB issued FASB Statement No. 159, The Fair Value Option for Financial Assets and Financial Liabilities 
(“FAS 159”), 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 did not have a material impact 
on the Company’s Consolidated Financial Statements.

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 statements. 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 information, 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.

17

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2007 AAON Annual Report

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

(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, 2007, the Company’s internal control over financial reporting is effective based 
on those criteria.

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

Date: March 11, 2008 

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

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

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, 2007.

Foreign sales accounted for less than approximately 5% of the Company’s sales in 2007 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 Canadian dollar to the United States dollar was $0.862 and $1.019 at December 31, 2006 and 2007, respectively.

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 2005 to 2007 cost increases in basic commodities, such as steel, aluminum 
and copper, rose by 50%, 75% and 190%, 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 30.

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, 2007.

19

20

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

(c) Report of Independent Registered Public Accounting Firm

PART III

Report of Independent Registered Public Accounting Firm

Item 10. Directors, Executive Officers and Corporate Governance. 

Board of Directors and
Stockholders of AAON, Inc.

We have audited AAON, Inc. (a Nevada corporation) and subsidiaries’ internal control over financial reporting as of December 
31,  2007,  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, included in 
the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an 
opinion on 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, assessing the risk that a material weakness exists, testing and evaluating the design and operating 
effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in 
the circumstances. We believe that our audit provides a reasonable basis for our opinion.

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.

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 2008 Annual Meeting of Stockholders.

Code of Ethics

The Company has adopted a code of ethics that applies to its principal executive officer, principal financial officer and principal 
accounting officer or persons performing similar functions, as well as its other employees and directors. The Company undertakes to 
provide any person without charge, upon request, a copy of such code of ethics. Requests may be directed to AAON, Inc., 2425 
South Yukon Avenue, Tulsa, Oklahoma 74107, attention Kathy I. Sheffield, or by calling (918) 382–6204.

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 2008 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 2008 Annual Meeting of Stockholders. 

Item 13. Certain Relationships and Related Transactions.

Transactions with Related Persons

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. The Company did not 
enter into any new related party transactions and has no preexisting related party transactions in 2007 or 2006, respectively.  

In our opinion, AAON, Inc. and subsidiaries maintained, in all material respects, effective internal control over financial reporting as 
of December 31, 2007, based on criteria established in Internal Control – Integrated Framework issued by COSO.

Director Independence

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, 2007 and 2006, 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,  2007  and  our  report  dated  March  10,  2008  expressed  an  unqualified  opinion  on  those  consolidated 
financial statements.

/s/ GRANT THORNTON LLP

Tulsa, Oklahoma
March 10, 2008

(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 2007 that have 
materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Item 9B. Other Information.

None.

21

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 2007, the 
Board affirmatively determined, considering the standards described more fully below, that Messrs. Naugle, Pantaleoni, Ryan, Short 
and Stephenson are independent. Upon the resignations of Messrs. Naugle and Ryan, followed by the subsequent elections of 
Messrs. Lackey and McElroy, the Board affirmatively determined that Messrs. Lackey and McElroy are independent. As a result of 
his position as the President of the Company, Mr. Asbjornson does not qualify as independent under the standards set forth below.  
The  Board  has  determined  that  Mr.  Johnson  should  not  be  deemed  independent,  because  he  is  a  member  of  the  law  firm  that 
serves as General Counsel to the Company. In addition, each member of the Audit Committee and the Compensation Committee 
is independent.

22

 
 
 
 
 
 
 
 
 
 
 
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 information 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 relationships 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.

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 2008 Annual Meeting of Stockholders.

2007 AAON Annual Report

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 Rule 4200, 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 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 service), 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 matching 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 controls, 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 separation or divorce, death or incapacitation.

23

24

Part III
2007 AAON Annual Report

PART IV

Item 15. Exhibits and Financial Statement Schedules.

(a) 

Financial statements.

See Index to Consolidated Financial Statements on page 28.

(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) 

Third Amendment to Third Restated Revolving Credit and Term Loan Agreement (v)

(B) 

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

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

                               (10.2)                  AAON, Inc. 2007 Long–Term Incentive Plan, as amended (viii)

                               (21)                     List of Subsidiaries (ix)

                               (23)                    Consent of Grant Thornton LLP

                               (31.1)                   Certification of CEO

                               (31.2)                  Certification of CFO

                               (32.1)                  Section 1350 Certification–CEO

                               (32.2)                  Section 1350 Certification–CFO

2007 AAON Annual Report

(i) 

(ii) 

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.

(iii) 

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.

(iv) 

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

(v) 

Incorporated herein by reference to exhibit to the Company’s Form 8–K dated August 7, 2007

(vi) 

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.

(vii) 

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 Appendix B to the Company’s definitive Proxy Statement for 
the 2007 Annual Meeting of Stockholders filed April 23, 2007.

(ix) 

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

25

26

 
 
 
 
 
 
 
 
 
 
    
   
 
 
2007 AAON Annual Report

Part IV

SIGNATURES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

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 

Consolidated Statements of Cash Flows 

Notes to Consolidated Financial Statements 

  Page

     29 

     30

     31

     32

     33

     34

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.

Dated: March 11, 2008 

AAON, INC.

By:  

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

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.

Dated: March 11 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

Dated: March 11, 2008 

     /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/ Anthony Pantaleoni  

         Anthony Pantaleoni
                Director

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

  Director

                      /s/ Jack E. Short 
                          Jack E. Short

                Director

                    /s/ Paul K. Lackey, Jr. 

         Paul K. Lackey, Jr.

 Director

     /s/ A.H. McElroy II 
          A.H. McElroy II

Director

27

28

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                                               
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
    
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
     
2007 AAON Annual Report

Report of Independent Registered Public Accounting Firm

AAON, Inc., and Subsidiaries
Consolidated Balance Sheets

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, 2007 and 2006, 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, 2007. 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, 2007 and 2006, and the results of their operations and their cash flows for 
each of the three years in the period ended December 31, 2007 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), 
AAON, Inc.’s internal control over financial reporting as of December 31, 2007, 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 10, 2008 expressed an unqualified opinion thereon.

Tulsa, Oklahoma
March 10, 2008

/s/ GRANT THORNTON LLP

Assets
Current assets:

Cash and cash equivalents
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

Other long–term liabilities
Deferred tax liability 
Commitments and contingencies

Stockholders’ equity:

December 31,

2007

2006

(in thousands, except per share and share data)

$            879  

38,813
31,849
442
4,312
76,295
60,770
                   75

137,140

$           288
36,748
29,502
267
3,954
70,759
59,222
75

   130,056

                   91
            15,059
2,943
19,414
37,507

59
            15,821
2,465
            16,058
            34,403

239
3,974

                  –
             4,061

Preferred stock, $.001 par value, 7,500,000 shares 

authorized, no shares issued*

Common stock, $.004 par value, 75,000,000 shares 
   authorized, 18,054,246 and 18,508,248 issued and 
   outstanding at December 31, 2007 and 2006, respectively*
Additional paid in capital
Accumulated other comprehensive  income
Retained earnings

Total stockholders’ equity

–

–

73                    
                 –
                 1,942
93,405
            95,420

 74                    
185
667
90,666
91,592

Total liabilities and stockholders’ equity

$    137,140  

$   130,056

* Reflects three–for–two stock split effective August 21, 2007.   

    The accompanying notes are an integral part of these statements.

29

30

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
2007 AAON Annual Report

AAON, Inc., and Subsidiaries
Consolidated Statements of Income

Year Ending December 31,

  2007   

       2006
(in thousands, except per share data) 

        2005

Net sales

Cost of sales

Gross profit

Selling, general and administrative expenses

Income from operations

Interest expense

Interest income

Other income (expense), net 

Income before income taxes

Income tax provision

Net income

Earnings per share:

Basic* 

Diluted*

Cash dividends declared per common share*

Weighted average shares outstanding:

Basic* 

Diluted*

$  262,517

205,148

57,369

21,703

35,666

(10)

8

(321)

35,343

12,187

$  231,460

$ 

185,195

187,570       

  43,890       

18,059

25,831

(81)

         24

           424

26,198

9,065

       149,904

      35,291

      17,477

       17,814

(16)

67

   467

     18,332

        6,870

$  23,156

$  17,133     

$ 

11,462

$ 

$ 

$ 

1.24    

1.22 

0.32 

18,628

18,927

$ 

$ 

$ 

0.93

0.90

0.32

$ 

$ 

$ 

18,456

18,968

0.62

0.60

–

18,510

19,125

AAON, Inc., and Subsidiaries
Consolidated Statements of Stockholders’ Equity and Comprehensive Income

Common Stock

       Shares *              

Amount

Accumulated
Other
Comprehensive
Income

Paid–in
Capital

                     (in thousands)

        Retained
         Earnings

         Total

18,525

$     74

$        –

$      247

$   70,850

$ 71,171

–

–

243
(417)
18,351

–

–

408
–
(251)
–
18,508

–

–

613
–
(1,067)
–
18,054

–

–

1
(1)
74

–

–

1
–
(1)
–
74

–

–

4
–
(5)
–
$   73

–

–

1,507
(1,507)
–

–

–

3,107
          500
(3,422)
–
185

–

–

5,420
582
(6,187)
–
$        –

–

266

–
–
513

–

154

–
–
–
–
667

11,462

11,462

–

–
(3,404)
78,908

266
11,728

1,508
(4,912)
79,495

17,133

17,133

–

–
–
(432)
(4,943)
90,666

154

17,287

3,108
500
(3,855)
(4,943)
91,592

(396)

(396)

–

23,156

23,156

1,275

–
–
–
–
$   1,942

–

1,275
24,431

–
–
(14,581)
(5,440)

5,424
582
(20,773)
(5,440)
$  93,405 $  95,420

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
Balance at December 31, 2006
Adjustment for the adoption of FASB 

Interpretation (FIN) No. 48

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
Balance at December 31, 2007

* Reflects three–for–two stock split effective August 21, 2007

* Reflects three–for–two stock split effective August 21, 2007

    The accompanying notes are an integral part of these statements.

   The accompanying notes are an integral part of these statements.

31

32

  
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

AAON, Inc., and Subsidiaries 
Consolidated Statements of Cash Flows

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: 

Accounts receivable
Inventories, net
Prepaid expenses and other
Accounts payable
Accrued liabilities

Net cash provided by operating activities

Investing Activities

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 facility
Payments under revolving credit facility
Borrowings (payments) of 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 and cash equivalents
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year

Year Ended December 31,    

           2007            2006            2005

                     (in thousands)

  $  23,156   $  17,133   $  11,462

9,665
203
582
(2,998)
(108)
(124)

(1,760)
(2,095)
(172)
(1,370)
6,268
31,247

    9,146
          (59)
500
(1,852)
      –
    (510)

(4,197)
(5,790)
776
4,178
           103
      19,428

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

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

123
–
–
–
(10,874)
(10,751)

                –
        3,000
      (2,000)
–
    (17,781)    
   (16,781)

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

12,142
(12,142)
271
2,426
2,998
(20,773)
(4,958)
(20,036)

      53,706
    (53,706)
(108)
1,256
1,852
      (3,855)
(2,478)
      (3,333)

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

131
591
288
$    879   $ 

           137
         (549)
           837

288   $ 

           266
         (157)
           994
837

AAON, Inc., and Subsidiaries 
Notes to Consolidated Financial Statements

December 31, 2007

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., (AAON 
Properties, an Ontario corporation) is the lessor 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. All significant 
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 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.

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 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. 

The most significant estimates include the allowance for doubtful accounts, inventory reserves, warranty accrual, medical insurance accrual, 
and stock–based compensation. Actual results could differ materially from those estimates. 

Revenue Recognition

The Company recognizes revenues from sales of products when the products are shipped and the title and risk of ownership pass to the 
customer.  Selling  prices  are  fixed  based  on  purchase  orders  or  contractual  agreements.  Sales  allowances  and  customer  incentive  are 
treated as reductions to sales and are provided for based on historical experiences and current estimates. For sales initiated by independent 
manufacturer representatives, the Company recognizes revenues net of the representatives’ commission. The Company’s policy is to record 
the collection and payment of sales taxes through a liability account.

The accompanying notes are an integral part of these statements.

33

34

 
2007 AAON 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)

Concentrations

Inventories

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 
2007. No customer accounted for 10% of the Company’s sales during 2007, 2006 or 2005 or more than 5% of the Company’s accounts 
receivable balance at December 31, 2007 or 2006.

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
   Provisions for losses on accounts receivable
   Adjustments to provision
   Accounts receivable written off, net of recoveries
   Balance, end of period

              December 31,

       2007

     2006

(in thousands)

$ 39,220
 (407)
$ 38,813

$  37,014
(266)
$ 36,748

     Year Ended December 31, 

 2007

$ 

$ 

266
625
(422)
(62)
407

      2006
(in thousands)

         2005

$ 

$ 

685
589
(648)
(360)
266

$ 

$ 

717
634
(566)
(100)
685

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, 2007 and 2006, and the related changes in the 
allowance for excess and obsolete inventories account for the three years ended December 31, 2007, 2006 and 2005, are as 
follows: 

                 December 31,

2007

2006

  (in thousands)

$ 

$ 

27,651
 1,760
2,788
32,199
(350)
31,849

$ 25,977
2,226
  1,649
29,852
(350)
$ 29,502

2007

   Year Ended December 31,
2006
(in thousands)

2005

$ 

$ 

350
–
–
350

$ 

$ 

350
–
–
350

$  1,050
–
(700)
350

$ 

Raw materials
Work in progress
Finished goods

Less: Allowance for excess and obsolete inventories
Total, net

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

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

10–40
3–15
2–5

35

36

 
 
 
 
 
 
 
 
 
 
                                     
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
  
 
 
2007 AAON 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)

Property, Plant and Equipment (continued)

Warranties

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

         2007

         2006

     (in thousands)

Land
Buildings
Machinery and equipment
Furniture and fixtures

Less:  Accumulated depreciation
Total, net

Impairment of Long–Lived Assets

  $ 

  $ 

2,196    
2,354    
     31,272
     32,211
      74,053
      82,872
        5,883
        6,912
    113,404
    124,349
     (63,579)
     (54,182)
   $  60,770    $  59,222

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 2007, 2006 and 2005.

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.

Accrued Liabilities

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

Warranty
Commissions
Payroll
Workers’ compensation
Medical self–insurance
Other
Total

         2007

         2006

(in thousands)

  $ 

 $ 

6,308    
     8,851
2,175
1,127
608
   345
19,414   

  $ 

5,572    
6,862
1,890
494
837
   403
 $  16,058   

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 $4.0 million, $2.4 million and $3.6 million 
for the years ended December 31, 2007, 2006 and 2005, respectively.

Changes in the Company’s warranty accrual during the years ended December 31, 2007, 2006 and 2005 are as follows:

2007

2006
(in thousands)

2005

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

$  5,572
(3,321)
3,757
300
$  6,308

$  6,282
(3,128)
4,343
(1,925)
$  5,572

$  6,301
(3,641)
3,622
–
$  6,282

In 2007, the provision for warranties was increased due to an extension in the warranty period. In 2006, 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.

Earnings Per Share

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

  2007

Years Ended,
  2005
  2006
(in thousands, except share and per share data)

  $     23,156    

  $   17,133    

  $   11,462    

18,628,029
299,015

18,456,108
511,486

18,509,997
614,700

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*

18,927,044

18,967,594

19,124,697

Earnings per share
   Basic*
   Diluted*

        $1.24
        $1.22

        $  0.93
        $  0.90

Anti–dilutive shares*
Weighted average exercise price*

282,100
  $  17.81    

269,250
  $   16.19    

       $  0.62
       $  0.60

172,875
  $  12.57    

* Reflects three–for–two stock split effective August 21, 2007.

37

38

2007 AAON 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)

Advertising

Advertising costs are expensed as incurred. Advertising expense was approximately $784,000, $549,000 and $506,000 for the 
years ended December 31, 2007, 2006 and 2005, respectively.

Research and Development

Research and development costs are expensed as incurred. Research and development expense was $2.5 million, $2.0 million and 
$1.7 million for the years ended December 31, 2007, 2006 and 2005, 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 $4.2 
million, $3.3 million and $2.1 million for the years ended December 31, 2007, 2006 and 2005, respectively.

Defined Contribution Plan – 401(k)  

The Company sponsors a defined contribution benefit plan (“401(k) Plan”). Eligible employees may make contributions in accordance 
with the 401(k) Plan and IRS guidelines. 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 
approximately $98,000, $85,000 and $69,000 for the years ended 2007, 2006 and 2005, respectively.

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 $1.3 million, $1.0 million and $0.8 million in 2007, 2006 
and 2005, respectively.

New Accounting Pronouncements

In July 2006, Financial Accounting Standards Board (“FASB”) Interpretation No. 48, Accounting for Uncertainty in Income Taxes, 
an Interpretation of SFAS No. 109 (“FIN 48”) was released. 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. The Company adopted FIN 48 on January 1, 2007. The 
adoption of FIN 48 did not have a material impact on the Company’s Consolidated Financial Statements.

New Accounting Pronouncements (continued)

In September 2006, the FASB released SFAS No. 157, Fair Value Measurements (“SFAS 157”). 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 February, 2007, the FASB issued FASB Statement No. 159, The Fair Value Option for Financial Assets and Financial Liabilities 
(“FAS 159”), 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 did not have a material impact 
on the Company’s Consolidated Financial Statements.

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.  

2. Supplemental Cash Flow Information

Interest payments of approximately $10,000, $81,000 and $16,000 were made during the years ended December 31, 2007, 
2006 and 2005, respectively. Payments for income taxes of $10.2 million, $6.5 million and $7.2 million were made during the 
years ended December 31, 2007, 2006 and 2005, respectively. Dividends payable of $2.9 million and $2.5 million were accrued 
as of December 31, 2007 and 2006 and paid on January 3, 2008 and 2007, respectively.

3. Certificate of Deposit

At  December  31,  2007  and  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 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 bearing interest at 4% per annum. Proceeds from the $1.0 million certificate 
of deposit were reinvested in April 2006 in a 90–day certificate of deposit bearing interest at 4.6% per 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 $1.3 million. The letter of 
credit was a requirement of the Company’s workers compensation insurance and has been renewed and will expire December 
31, 2008. 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 (6.84% at December 31, 2007). No fees are associated with the unused portion of the committed amount. 
At December 31, 2007 and 2006, the Company had no borrowings outstanding under the revolving credit facility. Borrowings 
available under the revolving credit facility at December 31, 2007, were $13.9 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 July 30, 2006. At December 31, 2007 and 2006, the Company 
was in compliance with its financial ratio covenants. On July 30, 2007, the Company renewed the line of credit with a maturity date 
of July 30, 2008. 

39

40

2007 AAON Annual Report

5. Debt

The total amount of unrecognized tax benefits is as follows:

Short–term  debt  at  December  31,  2007  and  2006  consisted  of  notes  payable  totaling  approximately  $91,000  and  $59,000 
due in 2008 and 2007, respectively. In 2007, the notes payable are due in monthly installments of $7,588, with an interest rate of 
4.148%. In 2006, the notes payable are due in monthly installments of $9,004, with an interest rate of 3.53%, related to a computer 
capital lease.  

6. Income Taxes

The Company follows the liability method of accounting for income taxes, which provides that deferred tax liabilities 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:

Current
Deferred

       2007

Year Ending December 31,
             2006
(in thousands)

2005

$  12,631 
(444)

  $  12,187  

$  9,556
(491)
$  9,065  

$  8,566
(1,696)
$  6,870

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.

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

Year Ending December 31,

2007

2006

2005

35%
   3%
     (3%)
35%

   35%
        4%
  (4%)
 35%

   35%
    4%
        (2%)
    37%

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
FIN 48
Other accruals
Other, net

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

Depreciation and amortization
NOL
Share–based compensation

       2007

           2006
(in thousands)

        2005

$     295   
2,456
83
1,430
48
$  4,312

$  6,376
(2,019)
   (383)
$  3,974

$    240   
2,172
–
1,492
50
$ 3,954

$ 5,492
(1,242)
     (189)
$ 4,061

$     391
2,284
–
1,170
32
$  3,877

$  5,027
(695)
       142
$  4,474

The total net operating loss (NOL) deferred tax asset of approximately $5.5 million relates to AAON Canada. The NOL’s originating 
in 2007 and 2006 will expire in twenty years. The NOL’s originating in 2005 will expire in nine years.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. 
Effective January 1, 2007 the Company adopted FIN 48.

Balance at January 1, 2007
   Change as a result of tax positions taken during an earlier period
   Change as a result of tax positions taken during the current period
   Change as a result of settlements with tax authorities
   Change as a result of a lapse of the applicable statue of limitation
Balance at December 31, 2007

      (in thousands)

$ 

$ 

551
–
–
(156)
(142)
253

The total amount of unrecognized tax benefits that if recognized would impact the effective tax rate is approximately $190,000.

The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense. At December 
31,  2007  and  2006,  the  Company  had  accrued  approximately  $110,000  and  $0  for  the  potential  payment  of  interest  and 
penalties, respectively.

The total amount of unrecognized tax benefits at December 31, 2007 is approximately $253,000 related to tax positions for which 
it is reasonably possible that the total amounts could significantly decrease during the next twelve months. This amount represents 
the unrecognized tax benefits comprised of items related to determination of state nexus. Resolution of these tax benefits will occur 
through a voluntary compliance program, which it is reasonably possible will be completed during the next twelve months. As of 
December 31, 2007, the Company is subject to U.S. Federal income tax examinations for the tax years 2004 through 2007, and to 
non–U.S. income tax examinations for the tax years of 2004 through 2007. In addition, the Company is subject to state and local 
income tax examinations for the tax years 2001 through 2007. 

7. Stock–Based Compensation

The Company maintains a stock option plan for key employees, directors and consultants. The Company’s stock option plan provided 
for 4.4 million 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 fair market 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. On May 22, 2007, the stockholders of the Company adopted a Long–Term 
Incentive Plan which provides an additional 750,000 shares that can be granted in the form of stock options, stock appreciation 
rights, restricted stock awards, performance units and performance awards. Since inception of the Plan, non–qualified stock options 
and restricted stock awards have been granted with the same vesting schedule as the previous plan.

Prior  to  January  1,  2006,  the  Company  accounted  for  its  nonqualified  stock  options  under  the  recognition  and  measurement 
principles of APB 25 and related interpretations. 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 FAS 123. 
No stock based compensation cost was recognized in the Consolidated Statements of Income for the year ended December 31, 
2005. 

Effective  January  1,  2006,  the  Company  adopted  the  fair  value  recognition  provisions  of  SFAS  123(R)  using  the  modified–
prospective transition method. Under that transition method, compensation cost recognized for the year ended December 31, 2007 
and 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).

41

42

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

For the year ended December 31, 2007 and 2006, the Company recognized approximately $526,000 and $500,000 in pre–tax 
compensation expense in the Consolidated Statements of Income related to the stock option plan. The total pre–tax compensation 
cost related to nonvested stock options not yet recognized as of December 31, 2007 and 2006, is $1.5 million and $1.9 million, 
respectively. The nonvested stock options are expected to be recognized over a weighted–average period of 2.3 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 Statements of Cash Flows. FAS 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. 

The effect on net income and earnings per share if the Company had applied the fair value recognition provisions of FAS 123 to 
stock–based employee compensation in prior years is as follows:

Year Ended 
December 31, 2005
(in thousands except 
per share data)

Net income, as reported
Deduct: Total stock–based employee compensation expense determined under fair 

value method for all awards, net of related tax effects

Pro forma net income

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

Diluted, as reported

    Diluted, pro forma

$   11,462

(438)

$  11,024

$     0.62
$     0.60 

$     0.60 
$     0.58

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 years ended December 31, 2007 and 2006 and for pro forma disclosure 
purposes for the year ended December 31, 2005:

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

2007

2006

2005

N/A
N/A
N/A
N/A
N/A

1.67%
41.92%
4.61%
6.3 yrs
28%

2.05%
42.76%
5.05%
8.0 yrs
0%

2.05%
42.33%
4.84%
6.3 yrs
28%

–
32.15%
4.39%
8.0 yrs
0%

–
32.15%
4.39%
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. Previously, the Company used the Board of Director approved semi–annual dividend 
payout of $0.20 per share to calculate the expected dividend yield. The Board of Directors approved future dividend payments of 
$0.16 per share related to the stock split effective August 21, 2007 and the table above was adjusted to reflect the change.

The following is a summary of stock options outstanding as of December 31, 2007:

Options Outstanding

Options Exercisable

Number 
Outstanding 
at 
December 31, 
2007

Weighted 
Average 
Remaining 
Contractual 
Life

Weighted 
Average 
Exercise 
Price

Aggregate 
Intrinsic 
Value

Number 
Exercisable at  
December 31, 
2007

Weighted 
Average 
Exercise 
Price

21,750
307,320
241,613
46,500
67,500
244,250
928,933

0.04
1.34
4.84
7.59
7.89
8.81
4.97

$ 2.26
3.20
8.45
11.69
14.34
17.23
$ 9.47

$17.56
16.62
11.37
8.13
5.48
2.59
$13.67

21,750
307,320
180,413
24,400
23,300
36,450
593,633

$2.26
3.20
7.69
11.75
14.18
16.81
$6.15

Range of  
Exercise Prices

2.26–2.26
2.67–3.85
5.73–11.29
11.40–12.00
12.68–15.55
15.99–21.01
Total

A summary of option activity under the plan as of December 31, 2007, is as follows:

Options

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
     Granted
     Exercised
     Forfeited or Expired
Outstanding at December 31, 2007
Exercisable at December 31, 2007

Shares 
1,739,670
199,500
     (243,600)
(25,050)
1,670,520
269,251
(406,950)
(71,325)
1,461,496
139,188
(573,374)
(98,377)
928,933
593,633

Weighted 
Average 
Exercise Price

$              4.09
11.09
3.37
5.58
$              5.01
15.93
3.09
11.11
$              7.33
15.98
4.24
14.80
9.47
$              6.15

Weighted 
Average 
Remaining 
Contractual 
Term

Aggregate 
Intrinsic Value 
($000)

4.97
3.07

$          9,617
$          8,116

43

44

                       
 
 
2007 AAON Annual Report

The weighted average grant date fair value of options granted during 2007 and 2006 was $7.07 and $6.70, respectively. The 
total intrinsic value of options exercised during the year ended December 31, 2007 and 2006 was $8.7 million and $5.0 million, 
respectively. The cash received from options exercised during the year ended December 31, 2007 and 2006 was $2.4 million 
and $1.3 million, respectively. The impact of these cash receipts is included in financing activities in the accompany Consolidated 
Statements of Cash Flows. 

A summary of the status of the non–vested stock option shares as of December 31, 2007, is as follows:

                                             Weighted Average

Nonvested at January 1, 2007
Granted
Vested
Forfeited
Nonvested at December 31, 2007

                                Shares 
415,980
108,250
(100,678)
(88,252)
335,300

              Grant Date Fair Value
$             6.09
               7.50
             6.10                 
             6.68
$             6.49

The total fair value of shares vested during the year ended December 31, 2007 was approximately $449,000.  

The Company also grants restricted stock awards to key employees and directors. These awards are recorded at their fair value on 
the date of grant and compensation cost is recorded using straight–line vesting over the service period. The weighted average grant 
date fair value of restricted stock awards granted during 2007 was $20.85 per share, total grant date fair value of approximately 
$811,000.  As  of  December  31,  2007,  there  was  no  aggregate  intrinsic  value  of  restricted  stock  awards.  For  the  year  ended 
December 31, 2007, the Company recognized approximately $56,000 in pre–tax compensation expense in the Consolidated 
Statements of Income related to restricted stock awards. In addition, as of December 31, 2007, unrecognized compensation cost 
related to non–vested restricted stock awards was approximately $734,000 which is expected to be recognized over a weighted 
average period of 2.0 years.

A summary of restricted stock activity under the plan as of December 31, 2007, is as follows:

Options

Shares

Nonvested at January 1, 2007
Granted
Exercised
Forfeited or Expired
Outstanding at December 31, 2007
Exercisable at December 31, 2007

–
38,900
–
(1,050)
37,850
–

Weighted
Average 
Remaining
Contractual
Term

Aggregate
Intrinsic 
Value ($000)

9.50
–

$   –
$   –

During  2007,  the  Compensation  Committee  of  the  Board  of  Directors  authorized  and  issued  restricted  stock  awards  to  the  key 
employees  and  directors  of  the  Company.  The  restricted  stock  award  program  offers  the  opportunity  to  earn  shares  of  AAON 
Common Stock over time, rather than options that give the right to purchase stock at a set price. Restricted stock awarded to directors 
vest one–third each year. All other restricted stock awards vests at a rate of 20% per year. Restricted stock awards are grants that 
entitle the holder to shares of Common Stock subject to certain terms. The fair value of option grants is based on the fair market value 
of AAON Common Stock on the respective grant dates, reduced for the present value of dividends.

SFAS 123(R) requires that cash flows from the exercise of stock options resulting from tax benefits in excess of recognized cumulative 
compensation costs (excess tax benefits) be classified as financing cash flows. For the twelve months ended December 31, 2007 
and 2006, $3.0 million and $1.9 million respectively, of such excess tax benefits from share based payment plans was classified 
as financing cash flows. 

8. 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 Company’s 
Common  Stock.  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.

9. Stock Repurchase

Following repurchases of approximately 12% of its outstanding Common Stock between September 1999 and September 2001, 
the Company announced and began another stock repurchase program on October 17, 2002, targeting repurchases of up to 
approximately 2.0 million shares of its outstanding stock. On February 14, 2006, the Board of Directors approved the suspension 
of the Company’s repurchase program. Through December 31, 2006, the Company had repurchased a total of 1,886,796 shares 
under this program for an aggregate price of $22,034,568, or an average of $11.68 per share. The Company purchased the 
shares at the current market price.

On November 6, 2007, the Company began a new stock repurchase program, targeting repurchases of up to approximately 10% 
(1.8 million shares) of the outstanding stock of the Company from time to time in open market transactions at prevailing market prices. 
Through December 31, 2007, the Company had repurchased a total of 690,300 shares under this program for an aggregate price 
of $13,012,199, or an average price of $18.85 per share. 

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, 2007, the Company repurchased 501,075 shares for an aggregate 
price of $7,712,287, or an average price of $15.39 per share. The Company purchases the shares at the current market price.

On  November  7,  2006,  the  Board  of  Directors  authorized  the  Company  to  repurchase  shares  from  certain  directors  following 
their exercise of stock options. 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 directors. Through December 31, 2007, the Company repurchased 260,625 shares for 
an aggregate price of $5,232,188, or an average price of $20.08 per share. The Company purchases the shares at the current 
market price.

45

46

 
     
 
 
               
 
 
 
 
 
 
 
 
2007 AAON Annual Report

10. Dividends

On February 14, 2006, the Board of Directors voted to initiate a semi–annual cash dividend. Previously, the Company paid Board 
of Director approved semi–annual dividend payout of $0.20 per share. The Board of Directors approved future dividend payments 
of $0.16 per share related to the stock split effective August 21, 2007. Dividends were declared to shareholders of record at the 
close of business on June 11, 2007 and December 13, 2007 and paid on July 2, 2007 and January 3, 2008. The company paid 
cash dividends of $5.0 million ($2.5 million paid in January and July 2007, respectively) and declared dividends payable of $2.9 
million for the year ended December 31, 2007. The Company paid cash dividends of $2.5 million and declared dividends payable 
of $2.5 million for the year ended December 31, 2006. 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

We have issued our reports dated March 10 2008, accompanying the consolidated financial statements and management’s assessment of 
the effectiveness of internal controls over financial reporting included in the Annual Report of AAON, Inc. on Form 10–K for the year ended 
December 31, 2007.  We hereby consent to the incorporation by reference of said reports in the Registration Statement of AAON, Inc. on 
Form S–8 (File No. 333–52824, effective December 28, 2000). 

Exhibit 23.1

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.

Tulsa, Oklahoma
March 10, 2008

12. Quarterly Results (Unaudited)

The following is a summary of the quarterly results of operations for the years ending December 31, 2007 and 2006:

/s/ Grant Thornton LLP

2007
Net sales
Gross profit
Net income
Earnings per share:

Basic
Diluted

2006
Net sales
Gross profit
Net income
Earnings per share:

Basic
Diluted

    March 31

         June 30

        September 30
(in thousands, except per share data)

       December 31

Quarter Ended

  $58 ,628
15,722
6,317

0.34*
0.33*

$70,835
15,598
6,877

0.37*
0.36*

     $70,907
13,640
5,382

0.29*
0.28*

     $62,147
12,409
4,580

0.25
0.24

    March 31

        June 30

        September 30
(in thousands, except per share data)

       December 31

Quarter Ended

$53,620
10,384
3,743

0.20*
0.20*

$59,137
10,119
3,455

0.19*
0.18*

     $64,153
13,591
5,397

0.29*
0.28*

     $54,550
9,796
4,538

0.25*
0.24*

*Reflects three–for–two stock split effective August 21, 2007.

47

48

 
 
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

I, Norman H. Asbjornson, certify that:

I, Kathy I. Sheffield, certify that:

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

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

CERTIFICATION

CERTIFICATION

Exhibit 31.1

Exhibit 31.2

2. 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;

2. 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;

3. 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;

3.  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;

4. 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:

4. 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) 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;

a) 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;

b) 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;

b) 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;

c) 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

c) 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

d) 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

d)  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):

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) 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

a) 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

b) 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.

b) 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 11, 2008 

49

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

Date: March 11, 2008 

/s/ Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

50

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

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

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

Exhibit 32.1

Exhibit 32.2

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10–K for the year ended December 31, 2007, 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:

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10–K for the year ended December 31, 2007, 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

(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.

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the 
Company.

March 11, 2008   

/s/ Norman H. Asbjornson

March 11, 2008   

Norman H. Asbjornson
Chief Executive Officer

/s/ Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

51

52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2007 AAON Annual Report

Officers

Board of Directors

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 over 40 years. 

Norman H. Asbjornson 
President/CEO

John B. Johnson, Jr. 
Secretary

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. 

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. 

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 38 years, holding 
positions in design, research, 
software development, 
engineering, teaching, sales and 
senior management. 

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. 

53

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.

Arthur (Chip) H. McElroy, II 
was elected as a director of 
the company in 2007. From 
1997 to present, Mr. McElroy 
has served as President and
CEO of McElroy Manufacturing, 
Inc., a manufacturer of fusion 
equipment and fintube machines.

Ken Lackey 
was elected as a director of the 
Company in 2007. From 2001
 to present, Mr. Lackey has served 
as CEO and president of NORDAM, 
a privately held aerospace company.

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

54

2007 AAON Annual Report

THANKS TO OUR EMPLOYEES

WILLIAM ABBOTT

MARIA ARREDONDO

SHARRON ABERCROMBIE

MARIA ARROYO DE CIRIACO

DAVID ARTIAGA Y

NORMAN ASBJORNSON

SCOTT ASBJORNSON

ROBERT ASHBY

GARY ASHMORE

DWIGHT AUSTIN

IVAN AVALOS

JESUS AVELAR SALDIVAR

ERNESTO AVILA

JOSEPH AVILA

NORA BACKUS

RICHARD BACKUS

JASWINDER BADESHA

JAHANGIR BAHRAQMI

DWIGHT BAKER

ERIC BAKER

JOHN BALDWIN

SARBJIT BANWAIT

CARLOS BARAJAS

CAROLYN BARBER

RAY BARBER

CANDY BARBOSA

JUSTIN BARLETT

KIONTE BARNES

DAVID BARNETT

CESAR BARRAZA

MARIBEL BARRIOS

MARCUS BLACK

VICKIE BLACK

KEVIN BLACKBOROW

BRIAN BLACKMON

MARIA BLANCO

DAVID BLEVINS

JIMMY BLEVINS

JUSTIN BLEVINS

AARON BODOVSKY

GENE BOESE

JAMES BOND

ALEXANDER BOTELLO

ANTHONY BOTELLO

ROSENDO BOTELLO

SHAWN BOUGH

KAY BOX

DEMETRIUS BOYD

JOHN BOYD

BRIAN BRADFORD

MYOSHIA BRADLEY

CHRISTOPHER BRANTLEY

RAYNOR BRENTON

ARLANDO BREWER

BOBBY BREWER

DAVID BRICE

JASPER BRITT

ARLUNDA BROOKS

MITCHELL BROOKS

NEREYDA BARRIOS DE PEREZ

DAVID BROWN

ROSA BARRO

ESTHER BARRON

ANDREW BASS

MICHAEL BASS

JUSTIN BATEMAN

STUART BAUGH

ELLIOTT BAYHYLLE

JASON BAZAN

SHANNON BECK

ELOY BELLO-CRUZ

GUZMAN BENITEZ

OFELIA BENITEZ

BONNIE BENSON

IDA BERMUDEZ

ROLAND BERRY

SERGIO BESERRA

THOMAS BIRD

JESSICA BIRDWELL

CHERYL BIRMINGHAM

JERMAINE BROWN

MITCHELL BROWN

JAMES BRUCE

PHILLIP BRUCE

MACEO BRUMLEY

WILLIAM BRYANT

ANNA BUI

BANG BUI

KELLI BURKES

BILLY BURNS

MONICA BURNS

SHANNON BURTCH

DOUGLAS BURTRUM

JOSEPH BUSH

TINA  BUSH

WAYNE BUSH

ANGELICA BUSTOS

JOHN BUTLER

JOHNNIE BUTLER

LUIS ACOSTA

MARIA D. ACOSTA

MARIA L. ACOSTA

MARTHA ACOSTA

ROGELIO ACOSTA GUERRERO

ANDRES ACOSTA-LUJAN

DANIEL ADAIR

ENRIGUETA ADAME

GARY ADAMS

RODNEY ADAMS

ISAAC ADERINBOYE

RITA ADIMARI

MARIA AGUAYO

ARTURO AGUILAR

HUMBERTO AGUILAR

PRITESH AHLUWALI

ROSHANLAL AHLUWALIA

JAMES AKINS

DANIEL ALAGDON

MARTHA  ALANIS

ENRIQUE ALAVALA

IMELDA ALBA

SOCORRO ALBA

JULIO ALBINO

NORMAN ALBRIGHT

DEMARCO ALEXANDER

JAMES ALEXANDER

SHANNON ALFORD

BRENDAN ALLEN

DONALD ALLEN

KEVIN ALLEN

NORMAN ALLEN

RAFAEL ALONZO

TARIK ALSAADI

FELIPE ALVARADO

LINDA ALVARADO

MICHAEL AMBURGEY

CYNTHIA AMENT

JEHAD AMIREH

MARGARITO ANGELES

WESLEY ANSELME

ALFREDO ANTONIO

URIEL ARELLANO GUERRA

JOSE ARGUMEDO-RUIZ

SESAR ARIAS

RONDELL ARMSTRONG

GARY  ARNOLD

55

ROSA BUTLER

BERRY BUZZARD

DORA CADENA

CLEVELAND CAGE, JR.

STEVEN COATNEY

KENNETH COCHRAN

BARBARA COLEMAN

DARREN COLEMAN

MARTHA CALDERAS-MOSQUEDA

LATOYA COLEMAN

MARGARITO CALDERON

DANIELLE CALHOUN

JORGE CALIXTO

ELIZABETH CALVILLO

LAZARO CAMA

JOSE CAMAS-PADILLA

DAVID CAMPBELL

ARTHUR CANDLER

JORGE CARCAMO

RONALD COLLINS

CHRISTOPHER COMBS

KATHLEEN COMPTON

DALE CONKWRIGHT

JONATHAN CONNELL

GERARDO CONTRERAS

MARK COOK

SHERITTA COOKS

MICHAEL COOLIDGE

HERMES CARCAMO-CASTRO

SCOTT COON

ERIC CARDENAS

MARIA CARDENAS

JUSTIN CARDOZA

CARL CARPENTER

SHAWN  CARR

MODESTO CARRERA

VINCENT CARSON

ALEJANDRO CARTAGENA

JAMES CARTER

ALFREDO CASIMIRO

SOLEDAD CASTRO

JOSE CASTRO M

MARIA CERDA

JUSTO CHAGOYA

GUADALUPE CHAIREZ-GALAN

PATRICK CHAPMAN

SERGIO CHARLES

RASEAN CHARVIS

CLARK CHASE

JOSH CHATTILLON

ADALBERTO CHAVEZ

GREGORY CHAVEZ

JOHN CHAVEZ

DALE CHERRY

DANIEL CHERRY

MICHAEL CHERRY

ADAN CHICAS

DONNA COONFIELD

JAMES COOPER

ELAINE CORKHILL

ALBERTO CORONA

BLANCA CORONA

HERON CORONA

ROBERTO CORONA

EDUARDO CORTEZ

ROSA CORTEZ

SERGIO COTERO

JOHN  COTTON, III

WESLEY COVEY

BILLY COX

CHRISTINE COX

JERRY COX

JOHN COX

PATRICK COX

ADRIAN CRABTREE

RICHARD CRAITE

STEVEN CRASE

DEVIN CREECH

JUAN CRESPO-MAISONET

DALE CREVAR

MIKEL CREWS

DARRELL CROW

DARRELL CROW, JR.

DRUMMOND CROWE

CAROLYN CRUTCHFIELD

WILLIAM CHRISTOPHER

MAGNOLIA CUADROS DE SANCHEZ

GEORGE CLARK

JOHN CLARK

MORRIS CLARK

FLOYD CLEGHORN

WILLIAM CLEVELAND

VICTORY CULLOM, II

ROBERT CUMMINGS

JAMES CURLEY

GENE CURTIS

BOGDAN CZEMIAWSKI

CARLOS BRISENO GUERRERO

WARREN CASTLEBERRY

ANGEL GARCIA

JESUS GARCIA

LAURA GARCIA

MARIO GARCIA

MAXIMO GARCIA

NICKLAUS GARCIA

ROBERTO GARCIA

WILSON GARCIA

MARIA GARCIA GARCIA

GLITER GARCIA LOPEZ

MIGUEL GARCIA-SUAREZ

JOHNNY  GARDNER, JR.

NORMA GARIBAY

JAMIE GARLISI

STACY GARRETT

PATRICK GARRETT, SR.

CARLOS GARZA

JORDON GARZA

RALPH GASAWAY

MIKE GATELEY

STEVE GEARY

JAMES GEORGE

SANTONIA GIBSON

AMRIK GILL

DARRYL GILLIAM, II

WILBERT GILMORE

VINCENT GLOVER

GARY GOFF

EMMETT GOINS

HECTOR GOMEZ

HUMBERTO GOMEZ

JOSE GOMEZ

MARIA GOMEZ

MOISES GOMEZ

JOSE GOMEZ-MORENO

NICK DABIJA

CANDY DAILEY

CHANH DANG

GWENDOLYN DANIELS

JOHN DANIELS

MARQUES DARBY

WILLIAM DAUGHERTY

ANGELA DAVIS

BYRON DAVIS

CAROLYN DAVIS

CATHY DAVIS

JERRY DAVIS

MARLEITTA DAVIS

RICHARD DAVIS

JAMES DAVIS, III

WILFREDO DE JESUS

OTILIA DE JONES

MATILDE DE LA TORRE

GWENDOLYN DECKARD

BOBBY DEGRAFFENREID

MAGALI DEJESUS

ISMAEL DELAPAZ

EVA DELATORRE

LUCERO DELEON MENDOZA

ALBERTO DELEON-CASTILLO

ALVARO DELEON-MEDOZA

GUADALUPE DELGADO

LUIS DELGADO

JUANA DELOBO

ANDRES DELOS SANTOS

RAQUEL DELUNA

RODRIGO DELUNA

JATINDER DEOL

SURJIT DEOL

EUFEMIO DEPAZ

VICENTE DEPAZ-MEDINA

DERRICK DESTRO

AUDENCIA DEVILLA

ROY DEVILLE

CHARLES DEWEESE

SOLEDAD DIAZ

HEATHER DIETLIN

CARL DIKA

MELANIE DIXON

HOMER DODD

RICKEY DODSON

MARTIN DOMINGUEZ

PABLO DOMINGUEZ

WILBER DOMINGUEZ

SEAN DONALD

JENNIFER DOSSMAN

JODI DOTY

HAROLD DOUGLAS

ERIC DOWNING

JUAN DUARTE

CATHRYN DUBBS

JERROLD DUBBS

BRIAN DUCKETT

CAROLYN DUESLER

CRAIG DUKE

LINDA DUNEC

BUDDY DUNN

CORTNEY DUNN

ISAAC DUNPHY

JASON DUNPHY

RALPH DURBIN

ALEJANDRO DURON

RANDY DWIGGINS

ADRIAN DYE

WENDELL EASILEY

DAVID ECHEVARIA

ANDREW ECKERT

ALSON EDWARDS

GARY EDWARDS

ABBAS ELHORCHI

BETTY  ELI

EARL ELLIOTT

HARVEY ELLIS

TINISHA ENGLISH

CARL EPPS, II

NORBERTO ESPARZA-TORRES

JOSE ESPINOSA

JOSE ESQUIVEL

EARL ESTEP

JESUS ESTRADA-GONZALEZ

STEPHEN ETTER

GILDA ETUMUDOR

GREGORY EUBANKS

OTIS EVANS

REGINALD EVERIDGE, JR.

SHAWN FAIRLEY

KATHY FALCONER

JOSE FELIX-GALVAN

ROBERT FERGUS

ELIZABETH FERGUSON

CATALINA FERNANDEZ

DAVID FERNANDEZ

SALVADOR FERNANDEZ

ANDREW FINCH

JESSE FINCH

STERLYN FINCH

BRUCE FISHER

JASON FISHER

ANTHONY FIZER

WAYNE FLASKA

RAY FLETCHER

COPOTENIA FLETCHER, JR.

CAROLINA FLORES

EFIGENIA FLORES

JUANA FLORES

LAURA FLORES

DEBRA FLOYD

MITCHELL FLOYD

RUBY FLOYD

VICKY FLOYD

MARK FLY

HECTOR FONTANEZ-ZAYAS

KENNETH FONTENOT

SHARON FONTENOT

SHEILA FORREST

CHRISTOPHER FOSTER

FREDERICK FOSTER

JOSEPH FOWLER

LORETTA FOWLKES

KENNETH FOX

KENNETH FOYIL

DUDLEY FRANCIS

PHILLIP FRANK

JASON FRANKLIN

WARREN FRANKLIN

REVONDA FRANKS

CURTIS FRAZEE

GARY FREDERIKSEN, JR.

OLGA FRENCH

ANGEL FRIAS

DANIEL FRIAS

ELBERT FULLER

WADE FULLER

REGINALD FULSOM, JR.

ANGELIA FULTON CREWS

RONY GADIWALLA

RANULFO GALICIA

MALISSA GALINDO

MARIA  GALINDO

MA GALVAN

MARIA  GALVAN

YOLANDA GALVAN

ALVARO GARCIA

AMBER GARCIA

ANDRES GARCIA

56

2007 AAON Annual Report

JUAN GOMEZ-OLMOS

DANIEL GOMEZ-SIGALA

CHRISTOPHER GONZALES

ADRIAN GONZALEZ

ALEX GONZALEZ

MANUEL  GONZALEZ

MARTIN GONZALEZ

NAYELI GONZALEZ

VICTOR GONZALEZ

BARRY GOODSON

JAMES GOREE

STEPHEN GOTCHER

DALE GRAHAM

BUENAS GRANADOS

CARLA GRAVES

ZAINAB GRAVES

MARIA GRAY

TYRA GRAY

JESSE GREEN, JR.

KELLI GREER

BRANDON GRIFFIN

CODY GRIFFIN

JOHN  GRIFFIN

RONALD GRIMES

DAN GRINBERGS

DANIEL GROFF

RAMON GUERRERO

JOSHUA GUITAR

REMIA GUTHERY

MANUEL GUTIEREZ

ISAAC GUTIERREZ

RAQUEL GUTIERREZ

EVELYN GUTIERREZ LAINEZ

ERASMO GUZMAN

NANCY HACKNEY

JACK HALL

KELLY HALL

STEPHEN HALL

LESLIE HALL, JR.

RITA HALLER

SCOTT HAMILTON

OTIS  HAMILTON

JEFFREY HAMMER

SAM HAMMOUD

ROBERT HANNA

DONALD HARDEN

MARQUIS HARLIN

DONALD HARMON

KENNY HARRIS

STACEY HARRIS

ROBI HARTMANN

HEATHER HASKINS

DONALD HATLEY

JEREMY HAWKE

BILLY HAWLEY, JR.

WILLIE HAYES

BRADLEY HAYNES

TEMESIA HEATH

THEODORE HEATH

TIM HEFFLIN

STEPHEN  HEGVOLD

DANIEL HENDERSON

TYSON HINTHER

CLYDE HITCHYE

BON HOANG

SANDRA HOFFMAN

BRYAN HOLLAND

JAMES HOLLINGSWORTH

DONNA HOLLOWAY

LAWRENCE HONEL

STEPHEN HOOVER

SAMANTHA HOPKINS

TERRI HORN

VICTORIA HORNER

WILBURN HORNER, JR.

DANIEL HORRELL

JOSHUA HORST

JERRY HOUSTON

DAVID HOWARD

LARRY HOWARD

CLARENCE HUBBELL

LYDIA HUDSON

PHILIP HUDSON

PHILIP HUDSON, JR.

ANTHONY HUFFMAN

BILLY HUGHART

JIMMY HUGHES

ROSARIO HUIZAR

ROBERTO HUNT

DEMETRIUS HENDERSON

BRENDA HURTADO

MIKE HENSLEY

ALVARO HERNANDEZ

ARMANDO HERNANDEZ

CORCINA HERNANDEZ

EDUARDO HERNANDEZ

FRANCISCO D. HERNANDEZ

FRANCISCO O. HERNANDEZ

JOSE HERNANDEZ

LILY HERNANDEZ

LUIS HERNANDEZ

MARIA HERNANDEZ

MARIANO HERNANDEZ

MAYTE HERNANDEZ

OSCAR HERNANDEZ

DONALD HICKMAN

DANNY HIDALGO

TAKEO HIGA

BRENDA HIGGINS

DEWAYNE HIGHTOWER

PAUL HILL

JEFFERY HINES

JUAN HINOJOSA

RONALD HUTCHCRAFT

GARY HUTCHINS

GARY HUTCHINSON

TAN HUYNH

OKECHUKWU IBEH

SAMUEL INGRAM

ANTHONY INKTON

FIRDOUS IRANI

TIM IRWIN

MELHAM JABR

BELINDA JACKSON

JEFF JACKSON

MAVIS JACKSON, JR.

DELLA JACOBS

DANNY JACOT

JOSE JAMAICA

RITA JAMAICA

MCKINLEY JAMES

WILBUR JAMES

FRANCES JARAMILLO

JASON JEWELL

GENELLE JIMBOY

ALEJANDRO JIMENEZ

J. ROSARIO JIMENEZ

MARIA JIMENEZ

RAUL JIMENEZ

VINCENT JIMENEZ

JUAN JIMENEZ, JR.

RICARDO JIMENEZ MONTELONGO

PEDRO JIMENEZ-DELFIN

FREDERICK JIMMERSON

KAREN JOBE

ED JOHNSON

JESSICA JOHNSON

LEROY JOHNSON

REX JOHNSON

SYLVIA JOHNSON

WILL  JOHNSON

THURLIN JOHNSON, II

PETE JOHNSON, JR.

WILLIAM JOHNSON, JR.

ANTONIO JONES

DANNY JONES

DAVID JONES

DJUAN JONES

JAMIETRIS JONES

KELLI JONES

RENEE JONES

ROSE JONES

GEORGE JONES, JR.

JAMES JONES, JR.

JASON JORDAN

FERNANDO JUAREZ

JAIME JUAREZ

PATRICK KAISER

BRIAN KASTL

RICHARD KEATON

DONALD KEELER

AARON KELLY

DANIEL KEMP

GREGG KENNEDY

CHRISTINE KEY

GO KHAM

MOHAMMED KHAN

PAVEL KHARABORA

KIRK KHILLINGS

NANG KHUP

RENA KIGHT

ALAN KILGORE

ANDREW KILGORE

BOBBY KILGORE

THANG KIM

MICHAEL KIMMONS

LORI KING

RUSSELL KING

STEPHEN KINSEY

ALEKSANDR KIRYUKHIN

GEORGE KLICK

FEDIR KLYUCHNYK

DAVID KNEBEL

CLYDE KNOX

ROBERT KNUTH

ANATOLI KONOVALCHUK

JAMES KOSS

EDWARD KRACKE, II

ROBERT KRAFJACK

MIKHAIL KRUPENYA

KARL KUENEMANN

MIKE LAFOND

JEANETTE LAIRD

RENATO LALATA

GEORGE LAM

COLE LAMBERT

LISA LONG

LINDA LONGORIA

ALONZO LOPEZ

ANA LOPEZ

ARTURO LOPEZ

MARGARITO  LOPEZ

RAUL LOPEZ

THOMAS LOPEZ

MA DE LOPEZ CUEVA

JOHNNY LOPEZ, JR.

NICK LORBETSKIE

VINCENT LOWE

PAUL LOWERY

CHEVONCO LUCAS

ROBERT LUCIDI

JARRAD LUDLOW

QUANNAH LUDLOW

ANDREA LUECK

JAMES LUKER

ANA LULE

KAREN MARTINEZ

OBDULIA MARTINEZ

JOHNNY MERRELL

AUBREY METCALF, JR.

FRANCISCO MARTINEZ LEON

VIVIAN MEYER

JUAN MARTINEZ-RUIZ

BEVERLEY MASON

JAMES MASON

ARTURO MATUL

RON MAUCH

ANTONIO MAURICIO

LEONARD MAXWELL

DUANE MAYFIELD

JACQUELINE MAYFIELD

TERRELL MAYFIELD

VLADO MAZILICA

COURTNEY McAFEE

DEBORAH McATEER

TINA McBEATH

ROBERT McBOWMAN

CHRISTOPHER McCLAIN

DIRK McCLELLAN

MOMCILO MIJAKOVAC

RONALD MIKEL

BRENDA MIKESKA

RUSSELL MILE

RANULFA MILIAN

CHRIS MILLER

MYKEA MILLER

DUANE MILLS

MICHAEL MILTON

BRIAN MINGLE

BRUCE MINTON

SCARLETT MIRANDA

RUSSELL MITCHELL

JOHNNY MIZE

JAY MODISETTE

RONALD MODLIN

IRMA MOGUEL

ERIC MULLINIKS

ALLEN MUMPHREY

TUAL MUNG

JESUS MUNOZ

EDUARDO MURILLO

JOHNNY MUSGRAVE

JUNE MUSGRAVE

DAVID MYERS

ASAD NAKHAEI

SING NANG

VINCENT NASH

GO NAULAK

MARIA NAVA

MAHENDRAN NAVARATNAM

ABEL NAVEJAS

CLAYTON NEAL

SAMUEL NEALE

NATALIE NEILSON

NATHANIEL NELSON

RONALD NELSON

CHRISTOPHER LUMBERT

MICHAEL McCLELLAND

BRAULIO MOISES-LEE

CARLOS NEVARA NEGRON

JOSE DEL CARMEN LANDERO SANCHEZ

MARIANA LUNA

DORIS McCLOUD

ROY McCONNELL

DEBRA McCOWAN

KEVIN McCOWAN

JOSE MOLINA

STAN MOLOUCH

STEVEN MOLSTER

JOSE MONREAL

WESLEY McCOWAN, JR.

MARIA  MONSIVAIS

PEDRO NEVAREZ

DUNG NGUYEN

HOANG-CHI NGUYEN

THANH NGUYEN

TIEN NGUYEN

DEBORAH LANE

DONALD LANEY

UGIN LANG

MICHAEL LAVALLEE

JEFFREY LAWSON

RONALD LAWSON

MICHEL LEBEL

JOSE LEBRON

JACQUELINE LEE

RHONDA LEE

MATTHEW LEEPER

PATRICIA LENNOX

ALBERTO LEON-BENITEZ

RONALD LESTER

TIMOTHY LEWIS

JIMMY LEWIS JR

GILBERTO LEYVA

MARC LICHTBLAU

PING LIN

JERRY LINCOLN

THOMAS LINCOLN

WILLIAM  LINDSAY

ANTHONY LITTLE

JARED LITTLEJOHN

MIKE LO VAN

JOEL LOCKMILLER

FRANKLIN LOGAN, JR.

MASSOUD LOLOYAN

KELLY LYBARGER

GREGORY MACK

JORGE MADRIGAL

MONICA MAGANA

OCTAVIO MAGANA

N MAI

BARBARA MALONE

CARLOS MALONE

NGIN MANG

SUAN MANG

ERIC MANN

KENNETH MANN

EVELYN  MANNING

PAULA McCRARY

SHAWN McCRARY

ROBERT McCULLEY

KATHY McCULLOCH

FLORENCE McDANIEL

LOYD McDANIEL

SHARRON McDANIEL

JAMES McELROY

DEBORAH McFARLIN

GEORGINA MANZO DE BARRERA

DEXTER McKINLEY

ALVINO MARES

CHRISTINA MARK

WILLIAM MARKWARDT

MA MARQUEZ DE-GILBREATH

RANDY McKINNEY

DOMINGO McKNIGHT

JOSHUA McLAIN

GINA MEANS

MARGARITO MARQUINA-GONZALEZ

JESUS MEDRANO

ANA MARROQUIN

JUANA MARROQUIN

ECO MARSHALL

JOSE MEJIA

JIMMY MEKSAVANH

JAMES MELDA

FLORENTINO MARTIN-ROMO

KEVIN MENDENHALL

ALFREDO MARTINEZ

BARBARA MARTINEZ

JAVIER MARTINEZ

JOSE MARTINEZ

JUAN MARTINEZ

MARIO MENDEZ

JESUS MENDOZA

JOSE MENDOZA

ARTHUR MENDOZA, JR.

VERNON MERCEAL, JR.

PRIMITIVO MONTELONGO SANCHEZ

CHRISTOPHER NICKOLES

ENOC MONTES

KASEY MONTGOMERY

JON MOODY

JAMES MOORE

MARC MOORE

MARIA MOORE

TONY MOORE

ISRAEL MORA

JUAN MORA

LAURA MORALES

CARLOS MORAN

RON MOREHEAD

DAVID MORELAND

BERTA MORENO

MATTHEW MORGAN

DAVID MORGERSON

BRANDON MORRIS

MATTHEW MORRISON

MARCUS MORROW

CLAYTON MOTE

DARRELL MOTE

ISSA MOUID

THERESA MUISE

KAREN NILES-BLAYER

HANK NOESKE

JERRY NOLAN

ABDOLHOSSEIN NOORI

CHRISTOPHER NORFLEET

WILLIE NORFLEET

ROBERT NORFLEET, JR.

DEBRA NOTHNAGEL

JESUS NUNEZ

JOHN NUTT

CHARLES NYLANDER

MICHAEL O’BRIEN

JAMES O’NEILL, JR.

JAMES O’NEILL, SR.

DEANGELO OAKLEY

JOSE OCHOA

ALEXANDER OFOSU

CHRIS OGANS

JOHN OGLE

RUBEN OLAN GARCIA

DUSTIN OLDEN

MARIA OLIVAS DE TORRES

LEE OLIVER, JR.

57

58

ISAGANI SAN AGUSTIN

VIENCHA SIMMALAVONG

JOSE RECIO-GOMES

CAROLINA ROJAS-GONZALEZ

VIVIAN SCROGGINS

2007 AAON Annual Report

ANTHONY OLIVERAS

JISEL OLIVEROS

ERIC  OLSON

JOSE PINEDA

WALTER PINTO

KOSTA PIRUZESKI

LUIS OQUENDO ALBERTO

CLIFFORD PITCHFORD

LETICIA ORONA

MARGARITA ORONA

KEVIN PITTSER

BASANT POKHREL

MARGARITA OROZCO DEHUIZAR

RENU POKHREL

VELMA POLLEY

BLAKE POMEROY

MICHAEL POOL

PEGGY REDDEN

JAMES REED

FREEMAN REED, JR.

MARGARET REEVES

EVERETT REITZ

ALBERTO RENDON

DAVID RENEAU

ISAGANI REQUINTINA

OVIEDO REYES GONZALES

TERRY ROMBACH

RICHARD ROMO

BOBBY ROSS

DELINA ROSS

ADAM ROUGELY

DMITRI RUDNITSKI

RICARDO RUIZ

VICENTE RUIZ

AVA RUSSELL

GERARDO PORTILLO

ALFREDO REYNA-MENERA

NARINDER SAHOTA

ADAN SALAZAR

NORA  SALAZAR

WALTER SALAZAR

J SALDIVAR

JOSE SALDIVAR

MIGUEL SALDIVAR

VICTOR SALDIVAR

DIANA SALINAS

BEATRIZ SANCHEZ

BETTY SANCHEZ

ESTEVAN SANCHEZ

EVA SANCHEZ

SERAFIN SANCHEZ

LUIS SANCHEZ-LOPEZ

EDWIN SANCHEZ-MONTEZ

IVELISSE SANCHEZ-RIVERA

ALICIA SANDERS

TANISHA SANDERS

DAVINDERPAL SANDHU

HARNEK SANDHU

CARLOS OROZCO-TORRES

CECILIO ORTEGA

DANIEL OSBERN

SANDRA OSBERN

KATIE OSBORNE

JENNIFER OVERMEYER

ROBERT OWENS

MARTIN OZURA-CARRILLO

GUILLERMO PACHECO

LUIS PACHECO

EDMUNDO PAIZ

J PANIAGUA

NOEMI PANIAGUA BELMONTE

JOSE PARDINAS

JOSE PARRA

SAUL PARRA

XOCHIL PARTIDA

CORRY PATTERSON

VADEN PAULSEN

TRAVIS PEARSON

KIMBERLY PEEKS

JOSE PENA

CHRIS PENCZAK

VLADIMIR PENIAZ

SERGIO PERALTA

ROLANDO PERES OSORIO

CESAR PEREZ

JUANA PEREZ

JUSTINA PEREZ

MARIA PEREZ

SERGIO PEREZ

ANDREW POSAS

PHILLIP POWELL

RUDY POWELL

SHELDON POWELL

GREG POWERS

JEFFERY POWERS

JOSE PRADO-HUERTA

CODY PRATT

TONY PRATT

LEON PRICE, JR.

SCOTT PRIES

ALMA PUGA

DAVID QUANG

VAN GIOAN QUANG

JESUS QUINONES

JOSE QUINTERO

JOHN QUINTON

JAMES RAFUSE

HEATHER REYNOLDS

DAVID RICHARDS

KIMBERLY RICHARDS

DARWIN RICHARDSON

SYLVESTER RICHARDSON

ANGELA RIDEOUT

DELMECIO RISER

SHANNON RISER

STEPHEN RISER

FRANKLIN RISNER

JAMES RITCHIE

VERONICA RIVAS

GENOVEVA RIVERA

LAURA ROBERSON

PAUL ROBERTS

JOHN ROBERTS

PHILLIP ROBERTSON, JR.

ANN ROBINSON

NIMALAKIRTHI RAJASINGHE

BENTON ROBINSON

MARY ROBINSON

MICHAEL ROBINSON

FERDINAN RALAT

ANTONIA RAMIREZ

JOSE RAMIREZ

RAYMON RAMIREZ

NANDY RAMIREZ B

JOSE RAMON

MARTINA RAMOS-RAMOS

BRANDON RAMSEY

MA LOURDES PEREZ PEREZ

JERRY RAMSEY

JOSEPH PERKINS

LADRUE PETERS

EMIL PETROV

DANIEL PEURIFOY

SONG PHAN

RANDY PHELPS

MAURICE PHENIX

LOUIS PHILLIPS

JEFF PICKERING

MARK PIERCE

PEDRO PINA-VALLES

59

JOSE RANGEL-ALVARADO

MARIWAN RASUL

SAFWAN RASUL

ROBERT RATLIFF

TERRY RATZLOFF

ROBERT RAYNO

THOMAS READ

SANDRA READER

JOSEPH REAGH

DIEGO REBOLLAR

FLOR REBOLLAR

VOLODYMYR RODOVNSKY

MICHAEL SANDOR, JR.

DANIEL RODRIGUEZ

DIANA RODRIGUEZ

GILBERTO RODRIGUEZ

HECTOR RODRIGUEZ

JOHNNY RODRIGUEZ

KARLA  RODRIGUEZ

MARIA RODRIGUEZ

MELVIN RODRIGUEZ

RIVELINO RODRIGUEZ

ROSE RODRIGUEZ

RUBEN RODRIGUEZ

TERESA RODRIGUEZ

AGUSTIN SANTANA

REINALDO SANTANA

HECTOR SANTIAGO

MIGUEL SANTIAGO

WENCESLAO SANTIAGO

HUMBERTO SANTILLAN

PEDRO SANTILLAN

DAVID SAPICO

DAVID SARANT

RICHARD SATTERFIELD

ERICK SAWYER

WILLIAM SCHAROSCH

JOSE RODRIGUEZ-CINTION

RUSSELL SCHOONOVER

J RODRIGUEZ-FLORES

DWAYNE SCHWARTZ

DON ROGERS

LIDIA ROJAS

NELSON ROJAS

BRUMMETT SCOTT

KENNETH SCOTT

ROSMOND SCOTT

MARCUS SEIP

EDUARDO SERRANO

HUGHGO SEWELL

CARROL SHACKELFORD

PEGGY  SHANNON

ALEXSANDR SHAPOVALOV

VANESSA SHARP

GREGORY SHAW

MATTHEW SHAW

THOMAS SHAW

KATHY SHEFFIELD

STEPHANIE SHELL

KATHLEEN SHEPARD

JACKIE SHEPHARD

BARBARA SHIPMAN

CONSUELA SHORE

RASCHID  SHOWOLE

NELSON SIERRA

CORY SIMMONS

PATRICK SIMPSON

KULWINDER SINGH

MYRON SINGLETON

RUSSELL SINGLETON

RONALD SISNEROS

MICHAEL SKINNER

LARRY SLONE

ADAM SMITH

BRETT SMITH

RENALDO SMITH

RICARDO SMITH

RYAN SMITH

SWEETIE SMITH

MICHAEL SMOLINIEC

JULIO SOBERANIS

MALCOLM SOLES

IMELDA SOLIS

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SELINA VIRAMONTES

CUONG VO

SUONG VO

TONG VO

NING VUNG

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MERLYN WALTERS

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