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AAON

aaon · NASDAQ Industrials
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Ticker aaon
Exchange NASDAQ
Sector Industrials
Industry Construction
Employees 1001-5000
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FY2010 Annual Report · AAON
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AAON is a global leader in providing 

equipment with environmentally 
responsible designs. AAON utilizes 

extensive product knowledge and state of 

the art manufacturing to continuously 

provide a wide variety of energy efficient 

and earth friendly features to the 

dynamic marketplace. The success of our 

commitments can be seen in the consistent 

growth of our sales and the increasing 

profitability of the company.

COMpANy pROFiLe

OutdOOR AiR  
HANdLiNg uNitS

CONdeNSiNg 
uNitS

iNdOOR AiR HANdLiNg uNitS

RL SeRieS

CL SeRieS

H3 SeRieS

SA SeRieS

V3 SeRieS

RN SeRieS

CC SeRieS

ROOFtOp uNitS

M2 SeRieS

M3 SeRieS

F1 SeRieS

RQ SeRieS

CB SeRieS

RL SeRieS

RN SeRieS

RQ SeRieS

BOiLeR

pACkAged MeCHANiCAL ROOMS

BL SeRieS

LL SeRieS AiR—CONdeNSed

LL SeRieS 
eVApORAtiVe—CONdeNSed

LC SeRieS AiR—CONdeNSed

AAON is engaged in the engineering, manufacturing, marketing and sales of air conditioning and heating equipment consisting 

of rooftop units, chillers, air-handling units, make-up air units, heat recovery units, condensing units, commercial self-contained 

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.

ANNuAl RepORT

FiNANCiAL HigHLigHtS

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 Share1
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

1 Reflects 3-for-2 stock split in August 2007 
2 Cash, cash equivalents + receivables/current liabilities.

2010

2009

2008

2007

2006

$244,552

$55,188

$32,715

$45

$258
$9,886

$32,693

$21,894

$1.30
$1.30

$55,502

$91,748

$67,418

$86,307

$2,393

$160,277

$36,246

$0

$116,739

$6.91

$32,152

$(28,276)

$(27,200)

$(23,246)

18.7%

13.7%

13.4%

9.0%

0.4

1.2

2.5

22

$245,282

$67,545

$43,754

$9

$71
$9,061

$43,892

$27,721

$1.61
$1.60

$65,354

$96,240

$59,896

$80,567

$25,639

$156,211

$30,886

$0

$117,999

$6.82

$45,205

$(9,639)

$(10,101)

$25,370

25.8%

17.7%

17.9%

11.3%

0.3

1.9

3.1

12

$279,725

$67,176 

$43,388 

 $71 

 $27 
 $9,412 

 $44,068 

 $28,589 

$262,517 

$57,369 

 $35,666 

$10 

$8 
$9,665 

 $35,343 

$23,156  

 $1.63 
$1.60 

 $1.24 
 $1.22 

$40,600 

$80,118 

$60,550 

 $72,269 

 $269 

 $140,743 

$39,518  

$121 

 $96,522 

$5.41

$33,447 

$(9,593)

$(24,460)

$(610)

29.8%

20.3%

15.8%

10.2%

0.5

1.0

2.0 

13 

$38,788  

$76,295 

$60,770 

$63,579 

$879 

$137,140  

$37,507 

$239  

$95,420  

$5.04

$31,247 

$(10,751) 

$(20,036)

$591 

24.8%

16.9%

13.5%

8.8%

0.4 

1.1

2.0

16 

$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  

 $0  

$91,592  

$4.83

 $19,428 

$(16,781) 

$(3,333)

$(549)

20.0%

13.2%

11.3%

7.4%

0.4

1.1 

2.1

19 

2010 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
pReSideNt’S LetteR

In  2010,  total  sales  declined  only  slightly  to  $244.6  million  from  $245.3 

million  a  year  earlier.  Impacted  by  higher  commodity  prices,  one-time 

costs  associated  with  the  relocation  and  addition  of  certain  production 

facilities and restricted pricing flexibility, gross profit decreased 18.3% from 

$67.5 million (27.5% of sales) to $55.2 million (22.6% of sales). It should be 

“We maintained 

our commitment 

to manufacture 

noted that the cost of sales in 2009 benefited by $2.2 million resulting from 

hedging  of  copper.  Our  SG&A  expenses  declined  5.5%  to  $22.5  million 

(9.2% of sales) from $23.8 million (9.7% of sales) primarily as a result of 

decreased  profit  sharing  related  to  lower  net  income.  Operating  income 

dropped 25.2% from $43.8 million (17.8% of sales) to $32.7 million (13.4% 

of sales). Pretax income declined similarly to $32.7 million (13.4% of sales) 

in  2010  from  $43.9  million  (17.9%  of  sales),  while  net  income  was  $21.9 

million (9.0% of sales) or $1.30 per share, as compared with $27.7 million 

(11.3% of sales) or $1.60 per share. Net income in 2009, reflects a gain from 

copper hedging of $1.4 million or $0.08 per share.

Our  2010  tax  rate  was  33%,  compared  to  36.8%,  due  to  credits  received 

from programs initiated by State and Federal governments. Our per share 

calculations are based upon 16.9 million diluted shares outstanding in 2010 

and 17.3 million diluted shares in 2009.

technologically 

innovative products 

that are energy 

efficient, meet or 

exceed government 

standards and 

produce significant 

savings to our 

customers.”

StRONg FiNANCiAL CONditiON

Our  financial  condition  at  December  31,  2010,  remained  strong.  Total  current  assets  were  $91.7  million  with  a  current  ratio  of 

2.5:1. Capital expenditures climbed to $17.4 million as compared with $9.8 million a year earlier. We repurchased 822,740 shares 

of common stock at a total cost of $19.4 million and made dividend payments totaling $9.2 million. We maintained a strong liquid 

position, with no long-term debt. Total shareholders’ equity at December 31, 2010, was $116.7 million or $7.07 per share, compared 

to $118.0 million or $6.85 per share at yearend 2009.

CApitAL expeNdituReS

We continue to witness increasing acceptance of our technologically innovative, highly reliable product lines. Our strong manufacturing 

and financial base enabled us to diversify both our product mix and customer base. These diversities give the Company significant 

potential for growth over the intermediate and longer term. In order to meet these future demands, we significantly increased our 

capital spending for both machinery and plant capacity. In 1998, we purchased a 40-acre tract of land including a 457,000 square 

foot building. Over the next decade this property was expanded to 713,000 square feet and, by the end of 2008, AAON utilized 

approximately 40% of the property with the remainder leased to a third party. The lease expired in May of last year and we began to 

immediately renovate the remaining 330,000 square feet.

Dear ShareholDer,We were quite pleased with our sales performance this past year taking into consideration the severely restricted economic environment which caused a 14% decline in non-residential construction. We maintained our commitment to manufacture technologically innovative products that are energy efficient, meet or exceed government standards and produce significant savings to our customers. Aided by wide acceptance of both our improved products and new products introduced during the last two years, we were once again able to increase our share of the market.ANNuAl RepORT

“Our financial condition 

at December 31, 2010, 

remained strong. Total 

current assets were $91.7 

million with a current 

ratio of 2.5:1. Capital 

expenditures climbed to 

$17.4 million as compared 

with $9.8 million a year 

earlier. We repurchased 

822,740 shares of common 

stock at a total cost 

of $19.4 million and 

made dividend payments 

totaling $9.2 million. 

We maintained a strong 
liquid position, with no 
long-term debt. 

We  originally  budgeted  capital  expenditures  of  $7-8  million 

customers has been excellent. Since our entire product line now 

factors  in  the  stock  performance  of  each  company  compared 

for 2010. By mid-year it became evident that we would need to 

requires foam insulation it is necessary for us to buy additional 

with that of its peers. The Company was also previously honored 

substantially  raise  our  forecast  due  to  our  improving  backlog 

foam manufacturing machinery. Furthermore, we will initiate a 

in this list for years 2000-2002.

and incoming order rate. Furthermore, we determined that two 

number of new production lines.

of  our  metal  fabricating  machines  would  have  to  be  replaced 

New pROduCtS

by early 2011 and three additional machines were necessary to 

In December 2010, the Federal government passed the 2010 Tax 

New Federal government regulations require that all commercial 

accommodate  our  future  growth.  We  placed  deposits  on  this 

Relief Act which provides a 100% depreciation allowance on any 

air conditioning systems larger than 10 tons must be capable of 

equipment  last  year  and  took  delivery  of  the  two  replacement 

qualified  asset  placed  in  service  from  September  2010  through 

varying  air  volume  in  accordance  with  load  requirements.  The 

machines at the beginning of this year. The remaining three units 

December 2011. This allowance continues through 2012, but at 

full product line of AAON, including the newly designed 2-10 ton 

will be delivered by June 2011.

a reduced rate of 50%. We plan to take full advantage of this tax 

equipment,  meets  these  requirements.  The  Company’s  variable 

benefit over the next two years.

air volume system is designed with a backward curved fan and 

By yearend 2010 our capital expenditures had climbed to $17.4 

million.  We  completed  a  165,000  square  foot  facility  dedicated 

ReCOgNitiONS

digital scroll compressor which can vary the amount of air into 

a space, thereby varying the amount of cooling and heating. The 

to the production of our 16-30 ton line of products and initiated 

In October, the Company’s RN series rooftop unit and LC series 

variable  air  volume  system  can  produce  annual  energy  savings 

renovation of an additional 165,000 square feet of manufacturing 

chiller product were named 2010 Product of the Year – Silver and 

up to 30-40% as compared with competing constant air volume 

which will house the production of our 26-70 ton product line. 

Bronze,  respectively,  in  the  HVAC/R  category  by  Consulting-

systems.

This facility is expected to be completed by mid-2011. In total, 

Specifying  Engineer  Magazine.  These  awards  add  to  the  2008 

we spent approximately $4.0 million on additional plant capacity 

announcement  that  the  rooftop  product  produced  by  AAON 

In January, we attended the AHRI Expo, a large industry trade 

and approximately $13.4 million on machinery and equipment.

with Digital Precise Air Control had been voted “Product of the 

show,  where  we  introduced  our  new  oilless  magnetic  bearing 

Year – Gold” in the HVAC category and “Most Valuable Product” 

centrifugal “break through” chiller system ranging in size from 

For  2011,  we  have  budgeted  total  capital  expenditures  in  the 

for the overall competition.

90 to 540 tons. The response to this product was exceptional. The 

range of $28-30 million. Approximately 25% of that amount will 

standard compressor in an air conditioner uses oil as a lubricant. 

be  devoted  to  enlarging  our  manufacturing  capacity  and  will 

Additionally,  in  May  2009  we  were  notified  by  the  National 

The oil circulates throughout the entire refrigeration system. Oil, 

include  the  completion  of  our  26-70  ton  product  line  facility 

Society of Professional Engineers (NSPE) that the Digital Precise 

by its nature, reduces heat transfer effectiveness, thereby lowering 

and  the  construction  of  a  new  200,000  square  foot  warehouse 

Air Control System had been selected to receive the 2009 NSPE 

the  energy  efficiency  of  the  equipment.  The  oilless  magnetic 

and office building which is expected to be finished by year end. 

Professional  Engineers  in  Industry  New  Product  Award  in 

bearing  compressor  eliminates  the  need  for  lubrication,  thus 

Once completed, we will have 1.2 million square feet of plant and 

the  Large  Company  category.  This  prestigious  award  honors 

improving  the  efficiency  of  the  refrigeration  cycle.  In  addition, 

buildings in our Tulsa facility with manufacturing capability of 

American companies and their contributions to society. Winning 

this  type  of  compressor  is  more  efficient  than  the  traditional 

$800 million to $1 billion depending on our product mix.

products were chosen for their exceptional engineering research, 

scroll  compressor.  The  AAON  patented  evaporative  condenser, 

design and overall impact on our national economy.

combined  with  the  magnetic  bearing  compressor,  creates  a 

The  remainder  of  our  capital  expenditures  will  be  directed 

chiller  system  with  very  low  energy  and  water  consumption 

toward the purchase of machinery. Over the past three years we 

Also, for the fourth consecutive year, AAON was selected to the 

compared to the systems now in the market. This chiller system 

redesigned  our  entire  product  line  to  include  foam  composite 

Forbes “100 Best Small Companies” list, ranking 77th. Inclusion 

uses approximately 30% less energy and water. The total chiller 

construction for the cabinets, making for a stronger, more highly 

on the Forbes list requires companies to meet a series of financial 

market  is  estimated  to  be  $700  million  annually.  We  expect  to 

energy  efficient  product  compared  with  the  traditional  use  of 

benchmarks,  including  earnings  and  sales  growth  and  return 

gain  a  modest  share  of  this  market  over  the  next  two  to  three 

fiberglass as the inner liner of the cabinets. The response from our 

on equity in the past 12 months and over five years. Forbes also 

years.

2010In 2010, we introduced a newly designed 2-6 ton unitary product 

market customer may choose our more efficient geothermal unit 

OuR eMpLOyeeS

and a redesigned 5-10 ton line. These products have inner and 

(water source heat pump system) over the traditional air cooled 

Our most important asset is our base of trained and knowledgeable 

outer sheet metal walls filled with foam which create composite 

system. Furthermore, the American Recovery and Reinvestment 

employees.  In  response  to  the  economic  challenges  of  2009,  our 

construction  for  the  cabinets.  In  addition,  these  products  are 

Act  of  2009  provides  a  tax  credit  for  geothermal  installations 

workforce became more flexible and we saw increased participation in 

manufactured with direct drive blower assemblies and with our 

which reduces the payback period. This Act played an important 

training efforts. This combination of outcomes allowed us to support 

airfoil backward curved fan which produces a far more efficient 

role in stimulating geothermal product sales this past year.

fluctuating  manufacturing  demands  over  the  past  two  years,  retain 

product  compared  with  the  traditional  belt  driven,  forward 

our most skilled personnel and respond to the opportunities which 

curved  fan  product.  We  established  a  strong  foothold  in  that 

SALeS RepReSeNtAtiVe peRFORMANCe

arose in our markets.

highly  competitive  market  due  to  the  excellent  response  to  the 

Our growing market share can be directly attributed to the efforts 

technological  innovations  we  incorporated  into  the  line.  We 

of our sales representatives. At the end of 2010, AAON had 112 

Since  our  founding,  we  have  distributed  10%  of  pre-tax  profits 

estimate the size of this market to be in the range of $1.1 to $1.3 

offices  operating  in  all  50  states  and  Canada.  The  replacement 

equally  to  all  personnel  at  each  operating  subsidiary.  The  purpose 

billion  or  approximately  55-60%  of  the  total  unitary  rooftop 

market represented approximately 45% of AAON’s total sales and 

of  this  “profit  sharing”  has  been  to  provide  an  immediate  reward 

market.  This  market  offers  AAON  excellent  growth  potential 

firm demand in this segment helped to cushion the weakness in 

for maintaining the subsidiary’s profitability. For a long-term focus, 

over the intermediate and longer term.

demand from new construction. End markets such as education, 

employees now own nearly 4% of the Company’s outstanding stock 

healthcare, government, municipal and the military performed 

through our 401(k) plan which allows employees to benefit, along with 

geOtHeRMAL

relatively  well,  while  we  continued  to  witness  a  negative  tone 

other shareholders, from share appreciation. AAON matches 50% of 

The  growing  acceptance  of  our  redesigned  2-6  ton  product 

in  the  commercial,  industrial  and  retail  sectors.  The  success  of 

all employee contributions to the Plan up to 9% of compensation and, 

line enabled our sales in the geothermal market to gain 40% to 

our product line diversification along with a widening diversity 

during 2010, we began contributing an amount equal to 1.5% of each 

approximately $15 million in 2010. Our product, with composite 

of  customers  can  be  directly  traced  to  the  efforts  of  our  sales 

employee’s pre-tax earnings to the 401(k) plan even if the employee 

cabinet,  improved  foam  technology  and  enhanced  coil  design, 

representatives.  They  will  continue  to  play  a  major  role  in  the 

chose  to  make  no  contribution  of  his  or  her  own.  All  company 

is  designed  to  be  used  as  a  rooftop  product.  The  replacement 

Company’s future growth.

contributions  purchase  company  stock  on  the  open  market  using 

ANNuAl RepORT

“Our growing market 

share can be directly 

attributed to the 

efforts of our sales 

representatives. At the 

end of 2010, AAON had 

112 offices operating 

in all 50 states and 

Canada.”

tHe ONgOiNg SuCCeSS OF OuR COMpANy CAN           Be diReCtLy AttRiButed tO OuR eMpLOyeeS.

2010ANNuAl RepORT

“We view our employees as a long-term investment in 

skills, talent and knowledge. We believe that our 

approach to personnel increases shareholder value 

We view our employees as a long-term investment in skills, talent 

and knowledge. We believe that our approach to personnel increases 

shareholder  value  by  developing  an  ownership  perspective  and 

a  sense  of  individual  responsibility  among  our  employees,  while 

helping them meet their personal financial, health and development 

by developing an ownership perspective and a sense of 

individual responsibility among our employees, while 

goals.

OutLOOk 

helping them meet their personal financial, health 

and development goals.”

Significant strides were made toward improving and enlarging 

our manufacturing capabilities during one of the most 

challenging economic periods witnessed in many years. We 

remain committed to providing the capital necessary in order to 

produce new, technologically innovative products which meet our 

either cash contributions from the Company, dividends received 

blood  sugar  levels  and  smoking  rates  since  tracking  began 

customers’ demands while addressing the major industry concern: 

from company stock or cash from prior divestitures of company 

for  those  figures  while  simultaneously  reducing  name-brand 

energy efficiency. Over the past decade, we spent approximately 

stock  within  the  plan.  Shares  of  AAON  stock  are  later  sold  to 

prescription  usage.  We  believe  that  giving  employees  direct 

$115 million on plant renovation, expansion and on the purchase 

the  Company  and  retired  if  participants  choose  to  diversify 

control  over  their  health-care  dollars  has  made  our  employees 

of machinery. All of these expenditures were made from our free 

their holdings or leave the plan. The 401(k) program improves 

more health-conscious and cost-conscious while keeping health 

cash flow while remaining debt free.

retirement  preparedness  and  encourages  employee  longevity 

care costs competitive for the Company and its shareholders.

through a six-year benefit vesting structure. We believe that the 

combination  of  these  two  incentives  align  the  interests  of  our 

Unfortunately,  the  recent  health  care  reform  legislation  has 

employees with those of our shareholders in a manner designed 

placed restrictions on our ability to manage a significant aspect 

to improve capital appreciation and profitability.

of  our  employment  costs.  Due  to  the  uncertainty  surrounding 

the  legislation,  we  have  maintained  our  “grandfathered”  status 

We are in our third year of offering only a high-deductible health 

for the 2010-2011 plan year even though our existing plan design 

plan along with contributions to health savings accounts, wellness 

covers the level of benefits required under the new regulations. 

incentives  and  on-site  clinics  that  are  focused  on  preventative 

As  the  regulatory  environment  surrounding  health  insurance 

care. Total medical costs, including the employees’ out-of-pocket 

develops, we will be closely examining the costs and benefits of 

costs,  are  running  30%  below  the  national  average  cost  of  just 

our current plan compared to a non-grandfathered status and the 

health insurance, which indicates the effectiveness of the current 

developing health insurance exchanges. However, in preparation 

plan  design  from  a  cost-control  perspective.  In  addition  to 

for  the  requirement  to  report  the  value  of  health  insurance  on 

financial performance, nearly all of the average health indicators, 

employee W-2s, we have modified our payroll statements. Now, 

as  verified  through  our  annual  Health  Risk  Assessments,  have 

on  every  payroll  statement  employees  see  the  full  value  of  all 

improved since we began to focus on prevention and wellness. We 

benefits  paid  on  their  behalf  by  the  Company  in  combination 

have seen improvements in average blood pressure, cholesterol, 

with their regular earnings.

Our growth objectives can be achieved, and enhanced by the 

continuing commitment and support of our customers, sales 

representatives and shareholders, as well as with the cooperation 

of our loyal employees, all of whose names appear at the end of 

this report. The future growth potential of AAON is in excellent 

hands and I believe will come to fruition.

Sincerely,

Norman H. Asbjornson

President & CEO

March 21, 2011

2010UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

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

[X] 
For the fiscal year ended December 31, 2010

or

[_]  

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

For the transition period from _____________________________ to _____________________________

Commission file number: 0-18953

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

Nevada 
(State or other jurisdiction 
of incorporation or organization)

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

87-0448736
(IRS Employer 
Identification No.)

74107
 (Zip Code) 

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

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

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

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

[_] Yes      [X] No

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

[_] Yes      [X] No

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

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if 

any, every  
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 
months (or for such shorter period that the registrant was required to submit and post such files).

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.

[X]
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer 

or a smaller reporting company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934).

[X] Yes      [_] No

[X] Yes      [_] No

Large accelerated filer [_]   
Non-accelerated filer [_]    

 Accelerated filer [X]
Smaller reporting company [_]

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

[_] Yes      [X] No

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, 2010) 
was $386.4 million.

As of February 28, 2011, registrant had outstanding a total of 16,492,682 shares of its $.004 par value Common Stock.
DOCUMENTS INCORPORATED BY REFERENCE

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

to be held May 17, 2011, are incorporated into Part III.

tABLe OF CONteNtS

iteM NuMBeR ANd CAptiON 

pAge NuMBeR

pARt i

1.  Business. 

1A. Risk Factors. 

1B. Unresolved Staff Comments. 

2.  Properties. 

3.  Legal Proceedings. 

pARt ii

5.  Market for Registrant’s Common Equity, Related Stockholder  
  Matters and Issuer Purchases of Equity Securities. 

6.  Selected Financial Data. 

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

7A. Quantitative and Qualitative Disclosures About Market Risk. 

8.  Financial Statements and Supplementary Data. 

9.  Changes in and Disagreements with Accountants on  

Accounting and Financial Disclosure. 

9A. Controls and Procedures. 

9B. Other Information. 

pARt iii

10.  Directors, Executive Officers and Corporate Governance. 

11.  Executive Compensation. 

12.  Security Ownership of Certain Beneficial Owners and  
  Management and Related Stockholder Matters. 

13.  Certain Relationships and Related Transactions. 

14.  Principal Accountant Fees and Services. 

pARt iV

15.  Exhibits and Financial Statement Schedules. 

1 

4

6

6

6

7 

10

10 

20

20

20 

21

22

23

23

23 

23

25

26

 
 
 
 
 
 
 
 
 
 
 
 
pARt 1

iteM 1. BuSiNeSS.

geNeRAL deVeLOpMeNt ANd deSCRiptiON OF BuSiNeSS

AAON, Inc., a Nevada corporation, was incorporated on August 18, 1987. We have two operating subsidiaries, AAON, Inc., an Oklahoma 
corporation and AAON Coil Products, Inc., a Texas corporation. Unless the context otherwise requires, references in this Annual Report to 
“AAON,” the “Company”, “we,” “us,” “our” or “ours” refer to AAON, Inc., and our subsidiaries.

We are engaged in the manufacture and sale of air-conditioning and heating equipment. Our products consist of rooftop units, chillers, air-
handling units, make-up air units, heat recovery units, condensing units, commercial self contained units and coils.

pROduCtS ANd MARketS

Our products serve the commercial and industrial new construction and replacement markets. To date our sales have been primarily to the 
domestic market. Foreign sales accounted for approximately 5% of our sales in 2010.

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

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

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

Based on our 2010 level of sales of $245 million, we estimate that we have a 14% share of the rooftop market and a 1% share of the coil market. 
Approximately 55% of our 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.

We purchase certain components, fabricate sheet metal and tubing and then assemble and test the finished products. Our primary finished 
products consist of a single unit system containing heating, cooling and/or heat recovery components in a selfcontained cabinet, referred to in 
the industry as “unitary” products. Our other finished products are chillers, coils, air-handling units, condensing units, make-up air units, heat 
recovery units and commercial self-contained units.

We offer four groups of rooftop units. Our RQ Series consisting of six cooling sizes ranging from one to six tons; our RN Series offered in 18 
cooling sizes ranging from six to 70 tons; our RL Series, which is offered in 15 cooling sizes ranging from 40 to 230 tons; and our 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.

We manufacture a Model LC Chiller, air cooled, and a Model LL chiller, which is available in both air-cooled condensing and evaporative cooled 
configurations.

ANNuAl RepORT

Our air-handling units consist of the F1 and H/V Series and the modular (M2 and M3) Series.

Our heat recovery option applicable to our RQ, RN and RL units, as well as our M2 and M3 Series air handlers, respond to the U.S. Clean Air 
Act mandate to increase fresh air in commercial structures. Our products are designed to compete on the higher quality end of standardized 
products.

Performance characteristics of our products range in cooling capacity from 20,000 - 4,320,000 BTU’s and in heating capacity from 69,000 - 
9,000,000 BTU’s. All of our 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.

We have developed and are beginning to market a residential condensing unit (CB Series) and air handlers (F1 Series).

MAjOR CuStOMeRS

No customer accounted for 10% of our sales during 2010, 2009 or 2008.

SOuRCeS ANd AVAiLABiLity OF RAw MAteRiALS

The most important materials we purchase are steel, copper and aluminum, which are obtained from domestic suppliers. We also purchase from 
other domestic manufacturers certain components, including compressors, electric motors and electrical controls used in our products. We 
attempt to obtain the lowest possible cost in our purchases of raw materials and components, consistent with meeting specified quality standards. 
We are not dependent upon any one source for raw materials or the major components of our manufactured products. By having multiple 
suppliers, we believe that we will have adequate sources of supplies to meet our manufacturing requirements for the foreseeable future.

We attempt to limit the impact of increases in raw materials and purchased component prices on our profit margins by negotiating with each of 
our major suppliers on a term basis from six months to one year.

diStRiButiON

We employ a sales staff of 20 individuals and utilize approximately 93 independent manufacturer representatives’ (“Representatives”) 
organizations having 108 offices to market our products in the United States and Canada. We also have 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 our Tulsa, 
Oklahoma and Longview, Texas plants to the job site.

Our products and sales strategy focus on niche markets. The targeted markets for our equipment are customers seeking products of better quality 
than offered, and/or options not offered, by standardized manufacturers.

To support and service our customers and the ultimate consumer, we provide parts availability through our sales offices and have factory service 
organizations at each of our plants. Also, a number of the manufacturer representatives we utilize have their own service organizations, which, in 
connection with us, provide the necessary warranty work and/or normal service to customers.

Our product warranty policy is: the earlier of one year from the date of first use or 18 months from date of shipment for parts only; an additional 
four years for compressors (if applicable); 15 years on aluminized steel gas-fired heat exchangers (if applicable); 25 years on stainless steel heat 
exchangers (if applicable); and 10 years on gas-fired heat exchangers in RL products (if applicable). With the introduction of the RQ product line 
in 2010, our warranty policy for the RQ series was implemented to cover parts for two years from date of unit shipment and labor for one year 
from date of unit shipment.

1

2

2010ANNuAl RepORT

ReSeARCH ANd deVeLOpMeNt

eNViRONMeNtAL MAtteRS

All of our R&D activities are self-sponsored, rather than customer-sponsored. R&D has involved the RQ, RN and RL (rooftop units), F1, H/V, 
M2 and M3 (air handlers), LC and LL (chillers), CB and CC (condensing units), SA (commercial self-contained units) and BL (boilers), as well as 
component evaluation and refinement, development of control systems and new product development. We incurred research and development 
expenses of approximately $3,605,000, $3,074,000 and $2,577,000 in 2010, 2009 and 2008, respectively.

BACkLOg

Our current backlog as of March 1, 2011, was approximately $37,978,000 compared to approximately $33,569,000 at March 1, 2010. The current 
backlog consists of orders considered by management to be firm and substantially all of which will be filled by July 1, 2011; 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. Our management regularly reviews our working capital 
with a view to maintaining the lowest level consistent with requirements of anticipated levels of operation. Our greatest needs arise during 
the months of July - November, the peak season for inventory (primarily purchased material) and accounts receivable. Our 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. We believe that we will have sufficient funds available to meet our working capital needs for the foreseeable future. We expect to 
renew our revolving credit agreement in July 2011. We do not expect that the current situation in the credit market will impact our renewal.

SeASONALity

Sales of our products are moderately seasonal with the peak period being July - November of each year.

COMpetitiON

In the standardized market, we compete primarily with Lennox International, Inc., Ingersoll Rand Limited, Johnson Controls Inc. and United 
Technologies Corporation. All of these competitors are substantially larger and have greater resources than we do. In the custom market, 
we compete with many larger and smaller manufacturers. Our products compete 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, we are often at a competitive disadvantage because of the emphasis placed on initial cost. In the replacement 
market and other owner-controlled purchases, we have a better chance of getting the business since quality and long-term cost are generally taken 
into account.

eMpLOyeeS

As of March 1, 2011, we had 1,394 permanent employees and 26 temporary employees. Our employees are not currently represented by unions. 
Management considers relations with our employees to be good.

pAteNtS, tRAdeMARkS, LiCeNSeS ANd CONCeSSiONS

We do not consider any patents, trademarks, licenses or concessions to be material to our business operations, other than patents issued 
regarding our heat recovery wheel option, blower, gas-fired heat exchanger and evaporative condenser desuperheater which have terms of twenty 
years with expiration dates ranging from 2016 to 2022.

Laws concerning the environment that affect or could affect our 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. We believe that we presently comply with these laws and that future compliance will not materially adversely affect our 
earnings or competitive position.

AVAiLABLe iNFORMAtiON

Our Internet website address is http://www.aaon.com. Our 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 our Internet website as soon as reasonably practical after we electronically file such material with, or furnish it to, the SEC.

iteM 1A. RiSk FACtORS. 

The following risks and uncertainties may affect our performance and results of operations.

OuR BuSiNeSS HAS BeeN HuRt By tHe CuRReNt 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. The state 
of the United States economy has negatively impacted the commercial and industrial new construction markets. The current 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 has resulted 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.

Our business is affected by a number of economic factors, including the level of economic activity in the markets in which we operate. The state 
of the United States economy has negatively impacted the commercial and industrial new construction markets. The current 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 has resulted in a decrease in our sales volume and 
profitability.

we RiSk HAViNg LOSSeS ReSuLtiNg FROM tHe uSe OF NONCANCeLABLe Fixed pRiCe CONtRACtS.

Historically, we attempted to limit the impact of price fluctuations on commodities by entering into noncancelable fixed price contracts with 
our major suppliers for periods of 6 - 18 months. We expect to receive delivery of raw materials from our fixed price contracts for use in our 
manufacturing operations. These fixed price contracts are not accounted for as financial derivative instruments since they meet the normal 
purchases and sales exemption.

3

4

2010we MAy NOt Be ABLe tO SuCCeSSFuLLy deVeLOp ANd MARket New pROduCtS.

we ARe SuBjeCt tO AdVeRSe CHANgeS iN tAx LAwS.

ANNuAl RepORT

Our future success will depend upon our continued investment in research and new product development and our ability to continue to realize 
new technological advances in the HVAC industry. Our inability to continue to successfully develop and market new products or our inability 
to achieve technological advances on a pace consistent with that of our competitors could lead to a material adverse effect on our business and 
results of operations.

we MAy iNCuR MAteRiAL COStS AS A ReSuLt OF wARRANty ANd pROduCt LiABiLity CLAiMS tHAt wOuLd NegAtiVeLy 
AFFeCt OuR pROFitABiLity.

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

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

tHe LOSS OF NORMAN H. ASBjORNSON COuLd iMpAiR tHe gROwtH OF OuR BuSiNeSS.

Norman H. Asbjornson, our founder, has served as our President and Chief Executive Officer 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.

OuR BuSiNeSS iS SuBjeCt tO tHe RiSkS OF iNteRRuptiONS By pROBLeMS SuCH AS COMputeR ViRuSeS.
Despite our implementation of network security measures, our services are vulnerable to computer viruses, break-ins and similar disruptions 
from unauthorized tampering with our 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.

Tax benefits could be adversely affected by changes in tax provisions, unfavorable findings in tax examinations or differing interpretations by tax 
authorities. We are unable to estimate the impact that current and future tax proposals and tax laws could have on our results of operations. We 
are not currently under audit by any taxing jurisdiction other than one state sales tax audit.

iteM 1B. uNReSOLVed StAFF COMMeNtS.

None.

iteM 2. pROpeRtieS.

Our plant and office facilities in Tulsa, Oklahoma, consist of a 342,000 sq. ft. building (327,000 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 693,000 sq. ft. 
manufacturing/warehouse building and a 22,000 sq. ft. office building (the “expansion facility”) located on a 40-acre tract of land across the street 
from the original facility (2440 South Yukon Avenue). We own both the original facility and the expansion facility. 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 numerical control punching equipment. 
Assembly lines consist of three cart-type conveyor lines with variable line speed adjustment, 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.

In the expansion facility we use 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 sq. ft. is utilized for sheet metal fabrication. The remaining 487,000 sq. ft. is presently being prepared as additional plant space 
for long-term growth.

Our 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 remaining 7,000 square feet are utilized as office space. The facility is built for light industrial manufacturing. An additional, 
contiguous 15 acres were purchased in 2004 and 2005 for future expansion. We own both the existing plant/office building, and the 15 acres 
designated for future expansion.

iteM 3. LegAL pROCeediNgS. 

We are 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 our knowledge, has been threatened against us.

5

6

2010ANNuAl RepORT

On November 7, 2006, the Board of Directors authorized us to repurchase shares from certain directors and officers following their exercise of 
stock options. The maximum number of shares to be repurchased is contingent upon the number of shares sold. Through December 31, 2010, 
we repurchased 379,750 shares for an aggregate price of $7,894,792, or an average price of $20.79 per share. We purchased the shares at current 
market prices.

Repurchases during the fourth quarter of 2010 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

17,444

5,445

18,912

41,801

$24.41

$25.13

$28.51

$26.36

17,444

5,445

18,912

41,801

-

-

-

-

period

October 2010

November 2010

December 2010

Total

pARt 2

iteM 5. MARket FOR RegiStRANt’S COMMON eQuity, ReLAted StOCkHOLdeR MAtteRS ANd iSSueR 
puRCHASeS OF eQuity SeCuRitieS.

Our Common Stock is traded on the NASDAQ Global Select Market under the symbol “AAON”. The range of high and low sale prices for our 
Common Stock during the last two years, as reported by National Association of Securities Dealers, Inc., was as follows:

QuARteR eNded

March 31, 2009

June 30, 2009

September 30, 2009

December 31, 2009

March 31, 2010

June 30, 2010

September 30, 2010

December 31, 2010

HigH

LOw

21.18  

21.93  

22.32  

20.65  

23.05  

25.26  

26.13  

29.64  

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

14.54

15.95

18.57

18.00

18.64

21.50

20.08

22.91

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

On February 28, 2011, there were 1,006 holders of record, and approximately 4,400 beneficial owners, of our Common Stock.

On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid semi-annual dividends of $0.20 
per share. The Board of Directors approved dividend payments of $0.16 per share related to the 3-for-2 stock split effective August 21, 2007. The 
Board of Directors approved future dividend payments of $0.18 per share on May 19, 2009. Board approval is required to determine the date of 
declaration and amount for each semi-annual dividend payment.

In 2009, dividends were declared to shareholders of record at the close of business on December 14, 2009 and were paid on January 4, 2010. In 
2010, dividends were declared to shareholders of record at the close of business on June 10, 2010 and December 1, 2010 and were paid on July 1, 
2010 and December 22, 2010. We paid cash dividends of $9.2 million during the year ended December 31, 2010.

On November 6, 2007, our Board of Directors authorized a stock buyback program, targeting repurchases of up to approximately 10% (1.8 
million shares) of our outstanding stock from time to time in open market transactions. On May 12, 2010, we completed the stock buyback 
program. Through May 12, 2010, we repurchased a total of 1,800,000 shares under this program for an aggregate price of $36,061,425, or an 
average price of $20.03 per share. We purchased the shares at current market prices.

On May 17, 2010, the Board authorized a new stock buyback program, targeting repurchases of up to approximately 5% (approximately 850,000 
shares) of our outstanding stock from time to time in open market transactions. Through December 31, 2010, we repurchased a total of 478,493 
shares under this program for an aggregate price of $11,509,433, or an average price of $24.05 per share. We purchased the shares at current 
market prices.

On July 1, 2005, we entered into a stock repurchase arrangement by which employee-participants in our 401(k) savings and investment plan are 
entitled to have shares of AAON stock in their accounts sold to us to provide diversification of their investments. The maximum number of shares 
to be repurchased is contingent upon the number of shares sold by employees. Through December 31, 2010, we repurchased 993,155 shares for 
an aggregate price of $18,042,789, or an average price of $18.17 per share. We purchased the shares at current market prices.

7

8

2010StOCk peRFORMANCe gRApH (1)

iteM 6. SeLeCted FiNANCiAL dAtA.

ANNuAl RepORT

The following graph compares our cumulative total shareholder return, the NASDAQ Composite and the peer group named below. The graph 
assumes a $100 investment at the closing price on January 1, 2005, and reinvestment of dividends on the date of payment without commissions. 
This table is not intended to forecast future performance of our Common Stock.

COMpuLSiON OF 5 yeAR CuMuLAtiVe tOtAL RetuRN
ASSuMeS iNitiAL iNVeStMeNt OF $100
deCeMBeR 2010

300.00

250.00

200.00

150.00

100.00

50.00

0.00

2005

2006

2007

2008

2009

2010

AAON INC.

S&P 500 Index - Total Returns

Peer Group

The peer group consists of Lennox International, Inc., Ingersoll Rand Limited, Johnson Controls Inc., and United Technologies Corporation. All 
companies in the peer group 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 we are 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 we specifically state 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.

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

Results of Operations:

2010

2009

2008

2007

2006

yeARS eNded deCeMBeR 31,

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:

Working capital

Total assets

Long-term and current debt

Total stockholders’ equity

(in thousands, except per share data)

244,552   $ 

245,282 $ 

279,725 $ 

262,517 $ 

231,460

21,894 $ 

27,721 $ 

28,589 $ 

23,156 $ 

17,133

1.30 $ 

1.30 $ 

0.36   $ 

1.61 $ 

1.60 $ 

0.36     $ 

1.63 $ 

1.60 $ 

0.32 $ 

1.24 $ 

1.22 $ 

0.32 $ 

0.93

0.90

0.32

16,799

16,893

17,187

17,309

17,560

17,855

18,628

18,927

18,456

18,968

deCeMBeR 31,

2010

2009

2008

2007

2006

(in thousands)

55,502 $ 

65,354 $ 

40,600 $ 

38,788 $ 

36,356

160,277 $ 

156,211 $ 

140,743 $ 

137,140 $ 

130,056

0 $ 

76 $ 

3,113 $ 

330 $ 

59

116,739 $ 

117,999 $ 

96,522 $ 

95,420 $ 

91,592

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

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.

iteM 7. MANAgeMeNt’S diSCuSSiON ANd ANALySiS OF FiNANCiAL CONditiON ANd  
ReSuLtS OF OpeRAtiONS.

OVeRView

We engineer, manufacture and market air-conditioning and heating equipment consisting of rooftop units, chillers, air-handling units, make-
up air units, heat recovery units, condensing units, commercial self-contained units and coils. These products are marketed and sold to retail, 
manufacturing, educational, medical and other commercial industries. We market units to all 50 states in the United States and certain provinces 
in Canada. Foreign sales were approximately 5% of our 2010 sales.

We sell our products to property owners and contractors through a network of manufacturers’ representatives and our internal sales force. 
Demand for our 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, we emphasize the replacement market.

9

10

2010 
 
The principal components of cost of goods sold are labor, raw materials, component costs, factory overhead, freight out and engineering expense. 
The principal high volume raw materials used in our manufacturing processes are steel, copper and aluminum, which are obtained from domestic 
suppliers. The raw materials market was volatile during 2010 and 2009 due to the economic environment. Prices decreased by approximately 34% 
for steel and increased by approximately 155% for aluminum and 210% for copper from December 31, 2008 to December 31, 2010. During 2010, 
we entered into an aluminum contract for 2011 purchases that was slightly above the average index price as of December 31, 2010. As market 
prices for aluminum have shown increases since January 1, 2011, our contract price more closely approximates market value in 2011.

We entered into a derivative instrument in the third quarter of 2009 with a large financial institution to mitigate our exposure to volatility in 
copper prices. The derivative was in the form of a commodity futures contract. The derivative contract settled monthly beginning in January 2010 
and ending in December 2010. The contract was for a total of 2,250,000 pounds of copper at $2.383 per pound. The contract was for quantities 
equal to or less than those expected to be used in our manufacturing operations. We recorded adjustments of $14,000 and $2.2 million ($1.4 
million after tax) to cost of sales from the unrealized gain on derivative assets at fair value in the Consolidated Statements of Income for the years 
ended 2010 and 2009 respectively.

We attempt to limit the impact of price fluctuations on these materials by entering into cancelable and noncancelable fixed price contracts with 
our major suppliers for periods of 6 - 18 months. We expect to receive delivery of raw materials from our fixed price contracts for use in our 
manufacturing operations. These contracts are not accounted for as derivative instruments since they meet the normal purchases and sales 
exemption.

We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate liability from these 
claims and actions, if any, will not have a material effect on our results of operations or financial position.

Selling, general, and administrative (“SG&A”) costs include our internal sales force, warranty costs, profit sharing and administrative expenses. 
Warranty expense is estimated based on historical trends and other factors. Our product warranty policy is: the earlier of one year from the date 
of first use or 18 months from date of shipment for parts only; an additional four years on compressors (if applicable); 15 years on aluminized 
steel gas-fired heat exchangers (if applicable); 25 years on stainless steel heat exchangers (if applicable); and 10 years on gas-fired heat exchangers 
in RL products (if applicable). Warranty charges on heat exchangers do not occur frequently. With the introduction of the RQ product line in 
2010, our warranty policy for the RQ series was implemented to cover parts for two years from date of unit shipment and labor for one year from 
date of unit shipment.

Our plant and office facilities in Tulsa, Oklahoma consist of a 342,000 sq. ft. building (327,000 sq. ft. of manufacturing/ warehouse space and 
15,000 sq. ft. of office space) located at 2425 S. Yukon Avenue (“the original facility”), and a 693,000 sq. ft. manufacturing/warehouse building and 
a 22,000 sq. ft. office building (“the expansion facility”) located across the street from the original facility at 2440 S. Yukon Avenue. We own both 
the original facility and the expansion facility.

In the expansion facility we use 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 sq. ft. is utilized for sheet metal fabrication. The remaining 487,000 sq. ft. is presently being prepared as additional plant space 
for long-term growth.

Other operations in Longview, Texas are conducted in a plant/office building at 203-207 Gum Springs Road, containing 258,000 sq. ft. (251,000 
sq. ft. of manufacturing/ warehouse and 7,000 sq. ft. of office space). An additional 15 acres were purchased in 2004 and 2005 for future 
expansion. We own both the existing plant/office building, and the 15 acres designated for future expansion.

Our previous operations in Burlington, Ontario, Canada, were located at 279 Sumach Drive, consisting of an 82,000 sq. ft. office/manufacturing 
facility. The property was sold in September 2010 for $1.5 million ($0.4 million cash and we are carrying back a $1.1 million note receivable).

Set forth below is income statement information and as a percentage of sales for years 2010, 2009 and 2008:

ANNuAl RepORT

Net sales

Cost of sales

Gross profit

Selling, general and 
administrative expenses

Income from operations

       Interest expense 

Interest income

Other income (expense), net

yeARS eNdiNg deCeMBeR 31,

2010

2009

(in thousands)

2008

$ 

244,552 

100.0%  

$ 

245,282  

100.0%  

$ 

279,725 

100.0%

189,364

55,188

22,473  

32,715 

(45)

258

(235)

77.4%

22.6%

9.2%

13.4%

0.0%

0.1%

0.1%

177,737

72.5%

212,549

67,545  

27.5%    

67,176 

23,791

43,754

(9)

71

76

43,892

16,171

9.7%

17.8%

0.0%

0.0%

0.1%

17.9%

6.6%

23,788 

43,388

(71)

27

724

44,068

15,479

76.0%

24.0%

8.5%

15.5%

0.0%

0.0%

0.3%

15.8%

5.6%

10.2%

 Income before income taxes

32,693  

13.4%  

Income tax provision

10,799

4.4%

  Net income

$ 

21,894

9.0%     

$ 

27,721

11.3%  

$ 

28,589

ReSuLtS OF OpeRAtiONS

Key events impacting our cash balance, financial condition and results of operations in 2010 include the following:

•  We have again taken a leading position in energy savings with the introduction of the direct drive blower which has eliminated the 

traditional V-belt drive, thus saving energy and maintenance problems associated with the V-belt drives. This has been made possible 
by advances in electronic motor control by use of variable frequency drive on larger motors and electrically commutated motors on 
smaller horsepowers. All of this is being further enhanced by requirements on buildings through ASHRAE (American Society of Heating, 
Refrigerating and Air-Conditioning Engineers) Standard 189-1 which requires one of these concepts on high efficiency buildings at the 
present time and will be required by ASHRAE Standard 90-1 on January 2012. We also utilize a high performance composite foam panel  
to eliminate over half of the heat transfer from typical fiberglass insulated panels. All of these innovations increase the demand for our 
products thus increasing market share.

•  Released new products and set up new manufacturing lines in the new building addition which was completed at the end of 2009.
•  We attempt to moderate the volatility of certain commodity costs by utilizing purchase agreements and pricing strategies which affect our 

gross margins.

•  In February 2006, our Board of Directors initiated a program of semi-annual cash dividend payments. Cash payments of $9.2 million were 
made in 2010. Dividends payable of $3.1 million were declared in June 2010, released for payment to our transfer agent in June 2010 and 
paid to stockholders in July 2010. Dividends payable of $3.0 million were declared and paid in December 2010. Dividends payable of $3.1 
million were declared in December 2009 and paid in January 2010.

•  Stock repurchases resulted in cash payments of $19.5 million. This cash outlay is partially offset by cash received from options exercised by 

employees as a part of an incentive bonus program of $1.2 million.

•  We have a strong liquidity position at December 31, 2010 with cash on hand of approximately $2.4 million, $1.5 million in certificates of 

deposit and $9.5 million of current assets in corporate notes and bonds. In view of the current economic environment, our goal remains to 
maintain a healthy financial condition.

•  Purchases of equipment and renovations to manufacturing facilities remained a priority. Our capital expenditures were $17.5 million. 
Equipment purchases create significant efficiencies, lower production costs and allow continued growth in production. We currently 
estimate dedicating $28 million to $30 million to capital expenditures in 2011 for continued growth.

11

12

2010           
 
 
 
Net SALeS

SeLLiNg, geNeRAL ANd AdMiNiStRAtiVe expeNSeS

ANNuAl RepORT

Net sales were $244.6 million, $245.3 million and $279.7 million in 2010, 2009 and 2008, respectively. Sales in 2010 remained substantially level 
with 2009 due to the favorable reception to our new products and increased market share, despite poor economic conditions which caused non-
residential construction spending to decline 14.1%. The decrease in sales in 2009 from 2008 was due to decreased volume related to the economic 
environment and lower sales from our Canadian operations. The economic environment negatively impacted commercial construction markets 
with some projects delayed, postponed indefinitely or cancelled. The replacement market was also affected by customers delaying equipment 
replacement as a cost saving strategy. In 2008, an increase in volume of products sold related to our new and redesigned products being favorably 
received by our customers, the diversified customer mix of products, active marketing by sales representatives and pricing strategies implemented 
in order to keep up with the then increasing raw material costs.

gROSS pROFit

Gross margins were $55.2 million, $67.5 million and $67.2 million in 2010, 2009 and 2008, respectively. Gross margins decreased $12.3 million in 
2010 from 2009. As a percentage of sales, gross margins were 22.6%, 27.5% and 24.0% in 2010, 2009 and 2008, respectively. The 18.0% decrease in 
gross margins in 2010 from 2009 was primarily a result of the absence of a derivative related to a copper hedge of $2.2 million that we benefited 
from in 2009, higher raw material and commodity costs, increased labor expenses to relocate a production line and set up new production lines 
for the Tulsa building addition and related supplies to stock the new lines, and our inability in the current economic environment to implement 
price increases to our minimum sales prices for HVAC units. The increase in gross profit in 2009 from 2008, resulted from lower material costs, 
improved production and labor efficiencies, a reduction in manufacturing related expenses and a $2.2 million ($1.4 million net of tax) unrealized 
gain from a financial derivative asset included in cost of sales, despite lower net sales and expenses associated with the Canadian facility closure. 
Our gross margins as a percentage of sales excluding the unrealized gain were 22.6%, 26.6% and 24.0% in 2010, 2009 and 2008, respectively.

The principal components of cost of goods sold are labor, raw materials, component costs, factory overhead, freight out and engineering 
expense. The principal high volume raw materials used in our manufacturing processes are steel, copper and aluminum, which are obtained 
from domestic suppliers. We also purchase from other domestic manufacturers certain components, including compressors, electric motors and 
electrical controls used in our products. The suppliers of these components are significantly affected by the raw material costs of steel, copper 
and aluminum used in their products. The raw materials market was volatile during 2010 and 2009 due to the economic environment. Prices 
decreased by approximately 34% for steel and increased by approximately 155% for aluminum and 210% for copper from December 31, 2008 to 
December 31, 2010. During 2010, we entered into an aluminum contract for 2011 purchases that was slightly above the average index price as of 
December 31, 2010. As market prices for aluminum have shown increases since January 1, 2011, our contract price more closely approximates 
market value in 2011.

We entered into a financial derivative instrument in the third quarter of 2009 with a large financial institution to mitigate our exposure to 
volatility in copper prices. The financial derivative was in the form of a commodity futures contract. The contract was for a total of 2,250,000 
pounds of copper at $2.383 per pound. In March 2010, we locked in the settlement price of $3.3975 per pound for the remainder of 2010. The 
contract was for quantities equal to or less than those used in our manufacturing operations in 2010. The derivative contract began settling in 
January 2010 and concluded in December 2010.

In addition to our financial derivative instrument, we attempt to limit the impact of price fluctuations on these materials by entering into 
cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6 - 18 months. We expect to receive delivery of raw 
materials from our fixed price contracts for use in our manufacturing operations. These contracts are not accounted for as financial derivative 
instruments since they meet the normal purchases and sales exemption.

We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate liability from these 
claims and actions, if any, will not have a material effect on our results of operations or financial position.

SG&A were $22.5 million, $23.8 million and $23.8 million in 2010, 2009 and 2008, respectively. As a percentage of sales, SG&A expenses were 
9.2%, 9.7% and 8.5% in 2010, 2009 and 2008 respectively. In 2010, compared to 2009, we experienced a decrease in our SG&A expenses. The 
decrease was primarily due to a decrease in profit sharing expense related to lower net income. In 2009, our SG&A expenses remained consistent 
with 2008, despite lower sales volumes in 2009 compared to 2008. Warranty expenses in 2009 increased due to specific warranty items and sales 
related expenses increased due to our expanded marketing to remain competitive in the current environment.

iNteReSt expeNSe

Interest expense was approximately $45,000, $9,000 and $71,000 in 2010, 2009 and 2008, respectively. The increase in interest expense of 
approximately $36,000 in 2010 from 2009 was due to increased borrowings on the revolving credit facility. We borrowed $20.8 million from the 
revolving credit facility during 2010 compared to $10.0 million during 2009. Interest on borrowings is payable monthly at the greater of 4.0% or 
LIBOR plus 2.5% (4.0% at December 31, 2010). The decrease in interest expense in 2009 from 2008 was due to fewer borrowings on the revolving 
credit facility. In 2008, we borrowed $46.9 million from the revolving credit facility. 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 $258,000, $71,000 and $27,000 in 2010, 2009 and 2008, respectively. The increase in interest income of 
approximately $187,000 in 2010 from 2009 was mainly due to interest income from our investments in corporate notes and bonds, see Note 1. 
Investments Held to Maturity. The increase in interest income in 2009 from 2008 was mainly due to interest income from a tax refund.

OtHeR iNCOMe (expeNSe)

Other expense was approximately $235,000 in 2010. Other income was approximately $76,000 and $724,000 in 2009 and 2008, respectively. 
The decrease in other income of approximately $311,000 in 2010 from 2009 was primarily due to the termination of the lease on our expansion 
facility in May 2009. Prior to the lease expiration in May 2009, other income was predominantly attributable to rental income from our expansion 
facility. The decrease in other income in 2009 from 2008 was also primarily related to the termination of the lease. We began renovations on the 
expansion facility to give us increased manufacturing capacity upon expiration of the lease. Our 2010 capital expenditures reflected the outlay to 
remodel the facility.

iMpACt OF CuRReNt eCONOMiC CONditiONS

Our business is affected by a number of economic factors, including the level of economic activity in the markets in which we operate. The 
state of the economy has negatively impacted the commercial and industrial new construction markets. The decline in economic activity has 
resulted in a decrease in our sales volume and profitability. 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.

13

14

2010ANALySiS OF LiQuidity ANd CApitAL ReSOuRCeS

Our working capital and capital expenditure requirements are generally met through net cash provided by operations and the occasional use of 
the revolving bank line of credit based on our current liquidity at the time.

geNeRAL

Our revolving credit facility provides for maximum borrowings of $15.2 million which is provided by the Bank of Oklahoma, National 
Association. At December 31, 2010, borrowings available under the revolving credit facility were $14.3 million. Under the line of credit, there is 
one standby letter of credit totaling $0.9 million. Interest on borrowings is payable monthly at the greater of 4.0% or LIBOR plus 2.5% (4.0% at 
December 31, 2010). No fees are associated with the unused portion of the committed amount. At December 31, 2010, we had no borrowings 
outstanding under the revolving credit facility. 

At December 31, 2009, we had no borrowings outstanding under the revolving credit facility. At December 31, 2008, we had $2.9 million 
outstanding under the revolving credit facility. At December 31, 2010, 2009 and 2008, we were in compliance with our financial ratio covenants. 
The covenants are related to our tangible net worth, total liabilities to tangible net worth ratio and working capital. At December 31, 2010 our 
tangible net worth was $117.0 million which meets the requirement of being at or above $75.0 million. Our total liabilities to tangible net worth 
ratio was 1 to 3, which meets the requirement of not being above 2 to 1. Our working capital was $55.5 million which meets the requirement 
of being at or above $30.0 million. On July 30, 2010, we renewed the line of credit with a maturity date of July 30, 2011 with terms substantially 
the same as the previous agreement. Subsequently, as a requirement of our workers compensation insurance, our standby letter of credit was 
extended with an increase of $1.5 million to $2.4 million and will expire December 31, 2011. We expect to renew our revolving credit agreement 
in July 2011. We do not anticipate that the current situation in the credit market will impact our renewal.

We believe projected cash flows from operations and our bank revolving credit facility (or comparable financing) will provide us the necessary 
liquidity and capital resources for fiscal year 2011 and the foreseeable future. The belief that we will have the necessary liquidity and capital 
resources is based upon our knowledge of the HVAC industry and our place in that industry, our ability to limit our growth if necessary, our 
ability to adjust dividend cash payments, and our relationship with our existing bank lender. For information concerning our revolving credit 
facility at December 31, 2010, see Note 3, Revolving Credit Facility.

Cash Provided by Operating Activities. Net cash provided from operating activities has fluctuated from year-to-year. Net cash provided by 
operating activities was $32.2 million, $45.2 million and $33.4 million in 2010, 2009 and 2008, respectively. The year-to-year variances are 
primarily from changes in net income, accounts receivable, inventories, accounts payable and accrued liabilities as described below.

Net income was $21.9 million, $27.7 million and $28.6 million in 2010, 2009 and 2008 respectively. The decrease in net income of $5.8 
million in 2010 from 2009 was primarily due to the absence of a derivative related to a copper hedge of $2.2 million ($1.4 million net of tax) 
that we benefited from in 2009, higher raw material and commodity costs, increased labor expenses to relocate a production line and set up 
new production lines for the Tulsa building addition and related supplies to stock the new lines, and our inability in the current economic 
environment to implement price increases to our minimum sales prices for HVAC units. The decrease in net income in 2009 from 2008 was 
primarily due to lower volume of sales which was a result of the economic environment and lower sales from our Canadian operations offset by 
lower material costs, improved production and labor efficiencies, a reduction in manufacturing related expenses and a $2.2 million ($1.4 million 
net of tax) unrealized gain from a financial derivative asset. 

Depreciation expense was $9.9 million, $9.1 million and $9.4 million in 2010, 2009 and 2008, respectively. The increase in depreciation is due 
to the increase in depreciable assets of equipment and building additions. The decrease in depreciation in 2009 was due to the realization of full 
depreciation of certain capital assets. Share-based compensation was $0.8 million in each of 2010, 2009 and 2008. Both depreciation expense and 
share-based compensation expense decreased net income, but had no effect on operating cash.

ANNuAl RepORT

Accounts receivable increased by $6.4 million at December 31, 2010 due primarily to slower customer payments. Accounts receivable decreased 
by $5.5 million at December 31, 2009 compared to December 31, 2008 and was attributable to a decrease in sales. Accounts receivable increased 
by $0.9 million at December 31, 2008 compared to December 31, 2007 due to increased sales.

Inventories increased by $4.8 million at December 31, 2010 compared to December 31, 2009 due to an increase related to the valuation of 
inventories associated with higher raw material and component part prices and increased inventory levels associated with an increase in our 
backlog. Inventories decreased by $7.2 million at December 31, 2009 compared to December 31, 2008. The decrease in inventories in 2009 from 
2008 was attributable to a decrease in inventory requirements related to lower sales volumes, a decrease related to the valuation of inventories 
due to lower raw material and component part prices and sales of inventory as part of the Canadian facility closure. Inventories increased by $4.8 
million at December 31, 2008 compared to December 31, 2007 primarily related to the procurement of inventory to accommodate increased 
sales.

Accounts payable increased by $6.5 million at December 31, 2010 compared to December 31, 2009 due an increase in inventory levels and 
timing of payments to vendors. Accounts payable decreased by $6.3 million at December 31, 2009 compared to December 31, 2008. The decrease 
in accounts payable in 2009 from 2008 was attributable to fewer purchases related to lower sales volumes. Accounts payable increased by $0.4 
million at December 31, 2008 compared to December 31, 2007 due to the timing of payment to vendors.

Accrued liabilities increased by $2.4 million at December 31, 2010 compared to December 31, 2009 due to an increase in amounts due to 
representatives and payroll partially offset by a decrease in medical self-insurance reserves. Accrued liabilities increased by $0.8 million at 
December 31, 2009 compared to December 31, 2008. The increase in accrued liabilities in 2009 from 2008 is attributable to higher warranty 
and medical self-insurance reserves related to specific items. Accrued liabilities increased by $0.9 million at December 31, 2008 compared to 
December 31, 2007 due to higher workers compensation expenses and higher warranty expenses related to increased sales.

Cash Flows Used in Investing Activities. Cash flows used in investing activities were $28.3 million, $9.6 million and $9.6 million in 2010, 2009 
and 2008, respectively. Cash flows used in investing activities in 2010 increased significantly from 2009 and were related to a $15.0 million 
investment with a large financial institution in January 2010. The investments were allocated to cash and money market funds, certificates of 
deposit, corporate notes and bonds and foreign corporate notes and bonds with a maturity of one year or less. The investments began maturing 
during 2010 and at December 31, 2010 the investment balance was $11.0 million. The increase was also attributable to manufacturing and 
equipment purchases and costs to expand our manufacturing facilities. Cash flows used in investing activities in 2009 did not significantly 
fluctuate from 2008 and were related to manufacturing and equipment purchases and costs to expand our manufacturing facilities. The decrease 
in cash flows used in investing activities in 2008 from 2007 was primarily related to lower capital expenditures. Management utilizes cash flows 
provided from operating activities to fund capital expenditures that are expected to increase growth and create efficiencies. We expect to expend 
approximately $28 million - $30 million in 2011 for a building addition at the Tulsa facility and machinery and equipment to accommodate 
anticipated growth. We expect the cash requirements to be provided by cash flows from operations and matured investments. We did not invest 
in certificates of deposits, money market funds or corporate notes and bonds in 2009 or 2008.

Cash Flows Used in Financing Activities. Cash flows used in financing activities were $27.2 million, $10.1 million and $24.5 million in 2010, 
2009 and 2008, respectively. The increase in cash flows used in financing activities of $17.1 million in 2010 from 2009 is primarily related to 
a higher volume of stock repurchases and the payment of $9.2 million in dividends. The decrease in cash flows used in financing activities in 
2009 from 2008 was primarily related to lower volume of stock repurchases. We occasionally utilize our revolving line of credit to meet certain 
short-term cash demands based on our liquidity at the time. We had no borrowings outstanding under the revolving credit facility at December 
31, 2010 or at December 31, 2009. We had $2.9 million outstanding under the revolving credit facility at December 31, 2008. We accessed $20.8 

million, $10.0 million and $46.9 million of borrowings under the line of credit during 2010, 2009 and 2008, respectively. 

We received cash from stock options exercised of $1.2 million, $1.2 million and $1.7 million and classified the excess tax benefit of stock 
options exercised and restricted stock awards vested of $0.4 million, $0.7 million and $1.6 million in financing activities in 2010, 2009 and 2008, 
respectively.

15

16

2010We repurchased shares of stock under the Board of Directors authorized stock buyback programs. We also repurchased shares of stock from our 
employees’ 401(k) savings and investment plan, directors and officers and the open market in the amount of $19.6 million for 822,740 shares, $3.1 
million for 165,117 shares and $24.8 million for 1,211,538 shares of stock in 2010, 2009 and 2008, respectively.

On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid semi-annual dividends of $0.20 per 
share. On July 12, 2007, our Board of Directors approved a 3-for-2 stock split of our 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, our Board of 
Directors adjusted the dividend paid per share to $0.16. The Board of Directors approved future dividend payments of $0.18 per share on May 19, 
2009. Board approval is required to determine the date of declaration and amount for each semi-annual dividend payment.

Cash dividends of $9.2 million were paid in 2010. Cash dividends of $5.9 million were paid in 2009, and we accrued a liability for payment of $3.1 
million of dividends in January 2010. Cash dividends of $5.8 million were paid in 2008, and $2.8 million in dividends were declared and accrued 
as a liability in December 2008 for payment in January 2009.

COMMitMeNtS ANd CONtRACtuAL AgReeMeNtS

The following table summarizes our contractual agreements as of December 31, 2010:

pAyMeNtS due By peRiOd

CONtRACtuAL OBLigAtiONS

tOtAL

LeSS tHAN  
1 yeAR

1–3 yeARS

4–5 yeARS

AFteR 5 yeARS

(in thousands)

Purchase obligations(1)

Total contractual obligations

$ 

$ 

1,662 $ 

1,662            $ 

1,662 $ 

1,662             $ 

- $ 

- $ 

- $ 

- $ 

-

-

(1) The purchase obligation consists of an aluminum commitment with one supplier. We expect to receive delivery of raw materials for use in 
our manufacturing operations. This contract is not accounted for as a derivative instrument because it meets the normal purchases and sales 
exemption.

We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate liability from these 
claims and actions, if any, will not have a material effect on our results of operations of financial position.

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 our 
results of operations, financial position and cash flows. We reevaluate our estimates and assumptions on a monthly basis.

ANNuAl RepORT

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

Revenue Recognition – We recognize revenues from sales of products when the products are shipped and the title and risk of ownership pass to 
the customer. Final sales prices are fixed based on purchase orders. Sales allowances and customer incentives are treated as reductions to sales and 
are provided for based on historical experiences and current estimates. Our policy is to record the collection and payment of sales taxes through a 
liability account.

We present revenues net of certain payments to our independent manufacturer representatives (“Representatives”). Representatives are national 
companies that are in the business of providing HVAC units and other related products and services to customers. The end user customer orders 
a bundled group of products and services from the Representative and expects the Representative to fulfill the order. Only after the specifications 
are agreed to by the Representative and the customer, and the decision is made to use an AAON HVAC unit, will we receive notice of the order. 
We establish the amount we must receive for our HVAC unit (“minimum sales price”), but do not control the total order price which is negotiated 
by the Representative with the end user customer.

We are responsible for billings and collections resulting from all sales transactions, including those initiated by our Representatives. The 
Representatives submit the total order price to us for invoicing and collection. The total order price includes our minimum sales price and 
an additional amount which may include both the Representatives’ fee and amounts due for additional products and services required by the 
customer. These additional products and services may include controls purchased from another manufacturer to operate the unit, start-up 
services, and curbs for supporting the unit (“Third Party Products”). All are associated with the purchase of a HVAC unit but may be provided by 
the Representative or another third party. The Company is under no obligation related to Third Party Products.

The Representatives do not provide us with a break-out of the amount of the total order price over the minimum sales price which includes 
the Representatives’ fee and Third Party Product amounts (“Due to Representatives”). The Due to Representatives amount is paid only after all 
amounts associated with the order are collected from the customer. The amount of payments to our Representatives was $51.4 million, $58.0 
million and $55.4 million for the years ended December 31, 2010, 2009, and 2008, respectively.

Allowance for Doubtful Accounts - Our allowance for doubtful accounts is estimated to cover the risk of loss related to accounts receivable. We 
establish 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 our Consolidated Financial 
Statements.

Inventory Reserves – We establish 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: the earlier of one year from the date of first use or 18 months from date of shipment for parts only; an additional four years on compressors (if 
applicable); 15 years on aluminized steel gas-fired heat exchangers (if applicable); 25 years on stainless steel heat exchangers (if applicable); and 
10 years on gas-fired heat exchangers in RL products (if applicable). With the introduction of the RQ product line in 2010, our warranty policy 
for the RQ series was implemented to cover parts for two years from date of unit shipment and labor for one year from date of unit shipment. 
Warranty expense is estimated based on the warranty period, historical warranty trends and associated costs, and any known identifiable 
warranty issue. Warranty charges associated with heat exchangers do not occur frequently.

17

18

2010 
 
 
 
Due to the absence of warranty history on new products, an additional provision may be made for such products. Our 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 our estimates, revisions to the estimated product warranty liability would be required.

Medical Insurance – A provision is made for medical costs associated with our 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 $125,000 each.

Stock Compensation – We account for equity-based compensation in accordance with FASC Topic 718, Compensation – Stock Compensation. 
Applying this standard to value equity-based compensation requires us 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. We measure 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 January 2010, the FASB issued ASU 2010-06, Fair Value Measurements and Disclosures (Topic 820): Improving Disclosures about Fair Value 
Measurements (“ASU 2010-06”), which requires reporting entities to provide information about movements of assets among Levels 1 and 2 of 
the three-tier fair value hierarchy. Separate disclosures need to be made of the amounts of significant transfers in and out of Level 1 and Level 2 
fair value measurements along with a description of the reason for the transfers. Also, disclosure of activity in Level 3 fair value measurements 
needs to be made on a gross basis rather than as one net number. ASU 2010-06 also requires: (1) fair value measurement disclosures for each 
class of assets and liabilities, and (2) disclosures about the valuation techniques and inputs used to measure fair value for both recurring and 
nonrecurring fair value measurements, which are required for fair value measurements that fall in either Level 2 or Level 3. The new disclosures 
and clarifications of existing disclosures are effective for interim and annual reporting periods beginning after December 15, 2009, except for 
the Level 3 activity disclosures, which are effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal 
years. Adoption of ASU 2010-06 did not have a material impact on our Consolidated Financial Statements.

In February 2010, the FASB issued ASU 2010-09,Topic 855, Subsequent Events (“ASU 2010-09”), which discontinues the requirement that entities 
disclose the date through which they have evaluated subsequent events. ASU 2010-09 is effective upon issuance. We adopted ASU 2010-09 for 
reporting in the fourth quarter of 2009. Adoption of ASU 2010-09 did not have a material impact on our 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 forwardlooking 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. We undertake 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.

ANNuAl RepORT

iteM 7A. QuANtitAtiVe ANd QuALitAtiVe diSCLOSuReS ABOut MARket RiSk.

iNteReSt RAte RiSk. 

We are subject to interest rate risk on our revolving credit facility, which bears variable interest based upon the greater of a rate
of 4.0% or LIBOR plus 2.5%. We had no borrowings outstanding under the revolving credit facility as of December 31, 2010.

COMMOdity pRiCe RiSk

We entered into a financial derivative instrument in the third quarter of 2009 with a large financial institution to mitigate our
exposure to volatility in copper prices. We did not incur losses due to counterparty non-performance. We do not use financial
derivatives for speculative purposes.

Fluctuations in copper commodity prices impacted the value of the financial derivative we held. The financial derivative contract
began settling monthly in January 2010 and concluded in December 2010. The contract was for a total of 2,250,000 pounds of
copper at $2.383 per pound. In March 2010, we locked in the settlement price of $3.3975 per pound for the remainder of
2010. Prior to locking in the settlement price, we would have been subject to gains which we would have recorded as a financial
derivative asset if the forward copper commodity prices increased and losses which we would have recorded as a financial
derivative liability if they decreased. We were in an unrealized gain position on the financial derivative asset during 2009 and
2010. We settled the derivative December 2010.

We used COMEX index pricing to support our fair value calculation, which is a Level 2 input per the valuation hierarchy as the
pricing is for instruments similar but not identical to the contract we settled. We did not designate the financial derivative as a
cash flow hedge. We recorded changes in the financial derivative’s fair value in earnings based on mark-to-market
accounting. For the year ended December 31, 2010, we recorded approximately $14,000 to cost of sales from the unrealized gain
on our financial derivative asset at fair value in the Consolidated Statements of Income.

The principal components of cost of goods sold are labor, raw materials, component costs, factory overhead, freight out and
engineering expense. The principal high volume raw materials used in our manufacturing processes are steel, copper and
aluminum, which are obtained from domestic suppliers. The raw materials market was volatile during 2010 and 2009 due to the
economic environment. We have included a three-year comparison to show fluctuations in raw materials costs. Prices have
decreased by approximately 34% for steel and increased by approximately 155% for aluminum and 211% for copper from
December 31, 2008 to December 31, 2010. During 2010, we entered into an aluminum contract for 2011 purchases that was slightly
above the average index price as of December 31, 2010. As market prices for aluminum have shown increases since January 1,
2011, our contract price more closely approximates market value in 2011.

We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate
liability from these claims and actions, if any, will not have a material effect on our results of operations or financial position.

In addition to the financial derivative instrument described above, we attempt to limit the impact of price fluctuations on these
materials by entering into cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6 - 18
months. We expect to receive delivery of raw materials from our fixed price contracts for use in our manufacturing
operations. These contracts are not accounted for as financial derivative instruments since they meet the normal purchases and
sales exemption.

We do not utilize financial derivative financial instruments to hedge our interest rate risk. We occasionally use financial derivatives to 
economically hedge our commodity price risk.

iteM 8. FiNANCiAL StAteMeNtS ANd SuppLeMeNtARy dAtA.

The financial statements and supplementary data are included commencing at page 33.

iteM 9. CHANgeS iN ANd diSAgReeMeNtS witH ACCOuNtANtS ON ACCOuNtiNg ANd FiNANCiAL 
diSCLOSuRe.

None.

19

20

2010iteM 9A. CONtROLS ANd pROCeduReS.

(C) RepORt OF iNdepeNdeNt RegiSteRed puBLiC ACCOuNtiNg FiRM

(A) eVALuAtiON OF diSCLOSuRe CONtROLS ANd pROCeduReS

Report of Independent Registered Public Accounting Firm

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

Board of Directors and Stockholders
AAON, Inc.

ANNuAl RepORT

• Our disclosure controls and procedures are designed at a reasonable assurance threshold to ensure that information required to be 

disclosed by us in the reports we file 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

• Our disclosure controls and procedures operate at a reasonable assurance threshold 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 our management, and made known to our 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 our disclosure controls and procedures and concluded that these 
controls and procedures were effective as of December 31, 2010.

(B) MANAgeMeNt’S ANNuAL RepORt ON iNteRNAL CONtROL OVeR FiNANCiAL RepORtiNg

The management of AAON, Inc. and our subsidiaries is responsible for establishing and maintaining adequate internal control over financial 
reporting. Our internal control system was designed to provide reasonable assurance to our 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 our 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, 2010, our internal control over financial reporting is effective at the reasonable assurance level based on those criteria.

Our independent registered public accounting firm has issued an attestation report on our internal control over financial reporting.

Date: March 10, 2011 

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

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

We have audited AAON, Inc. (a Nevada Corporation) and subsidiaries’, collectively, the “Company”, internal control over financial reporting 
as of December 31, 2010, 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 of the Company’s internal 
control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards 
require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was 
maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, 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.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2010, 
based on criteria established in Internal Control – Integrated Framework issued by COSO.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated 
balance sheets of AAON, Inc. and subsidiaries, as of December 31, 2010 and 2009, 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, 2010 and our report 
dated March 10, 2011, expressed an unqualified opinion on those consolidated financial statements.

/s/ GRANT THORNTON LLP

Tulsa, Oklahoma
March 10, 2011

(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 2010 that have materially 
affected, or are reasonably likely to materially affect, our internal control over financial reporting.

iteM 9B. OtHeR iNFORMAtiON.

None.

21

22

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
pARt 3

iteM 10. diReCtORS, exeCutiVe OFFiCeRS ANd CORpORAte gOVeRNANCe.

The information required by Items 401, 405, 406 and 407(c)(3), (d)(4) and (d)(5) of Regulation S-K is incorporated by reference to the 
information contained in our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2011 
Annual Meeting of Stockholders.

COde OF etHiCS

We adopted a code of ethics that applies to our principal executive officer, principal financial officer and principal accounting officer or persons 
performing similar functions, as well as other employees and directors. Our code of ethics can be found on our website at www.aaon.com. We 
will also 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 our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2011 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 
our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2011 Annual Meeting of 
Stockholders.

iteM 13. CeRtAiN ReLAtiONSHipS ANd ReLAted tRANSACtiONS.

tRANSACtiONS witH ReLAted peRSONS

Our 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, rules and regulations. We did not enter into any new related party transactions and have no preexisting 
related party transactions in 2010, 2009 or 2008.

diReCtOR iNdepeNdeNCe

The Board of Directors (“Board”) has adopted director independence standards that meet 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 2010, the Board 
affirmatively determined, considering the standards described more fully below, that Messrs. Short, Lackey, McElroy, Levine and Cappy are 
independent. As a result of his position as our President, 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 our 
General Counsel. In addition, each member of the Audit Committee and the Compensation Committee is independent.

ANNuAl RepORT

Our director independence standards are as follows:

It is the policy of the Board that a majority of the members of the Board consist of directors independent of the Company and of our 
management. For a director to be deemed “independent,” the Board shall affirmatively determine that the director has no material relationship 
with us or our affiliates or any member of the senior management 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, cannot 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 $120,000 in direct compensation from us, 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), cannot 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 one of our non-
executive employees 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 our 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 our audit within that time cannot 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 our present Named Officers at the time serves or served on that company’s compensation committee 
cannot 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 us 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 our securities or payments under non-discretionary charitable contribution matching 
programs, cannot be deemed independent.

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

• “affiliate” means any of our consolidated subsidiaries and any other company or entity that controls, is controlled by or is under 

common control with us;

• “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.

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 us and our affiliates and with senior management and their affiliates to enable the Board to
evaluate the director’s independence.

23

24

2010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, us and our affiliates or members of senior management and their affiliates, whether or not such 
business relationships are subject to any other approval requirements.

pARt 4

iteM 14. pRiNCipAL ACCOuNtANt FeeS ANd SeRViCeS.

Incorporated by reference to our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 
2011 Annual Meeting of Stockholders.

iteM 15. exHiBitS ANd FiNANCiAL StAteMeNt SCHeduLeS.

(a) 

Financial statements.

See Index to Consolidated Financial Statements on page 29.

(b) 

Exhibits:

ANNuAl RepORT

(A) 
(A-1) 
(B) 
(B-1) 

(A) 
(A-1) 
(B) 

(3) 

(4) 

(10.1) 

(10.2) 

(21) 

(23) 

(31.1) 

(31.2) 

(32.1) 

(32.2) 

Articles of Incorporation (i)
Article Amendments (ii)
Bylaws (i)
Amendments of Bylaws (iii)

Third Restated Revolving Credit and Term Loan Agreement and related documents (iv)
Sixth Amendment to Third Restated Revolving Credit and Term Loan Agreement (v)
Rights Agreement dated February 19, 1999, as amended (vi)

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

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

List of Subsidiaries (ix)

Consent of Grant Thornton LLP

Certification of CEO

Certification of CFO

Section 1350 Certification – CEO

Section 1350 Certification – CFO

(i) 

(ii) 

(iii)  

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

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

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

(iv)  

Incorporated by reference to exhibit to our Form 8-K dated July 30, 2004.

(v)  

Incorporated herein by reference to exhibit to our Form 8-K dated August 3, 2010

(vi)  

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

25

26

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(vii) 

(viii) 

(ix) 

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

Incorporated herein by reference to Appendix B to our definitive Proxy Statement for the 2007 Annual Meeting of  
Stockholders filed April 23, 2007.

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

ANNuAl RepORT

SigNAtuReS

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 10, 2011 

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 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011 

Dated:  March 10, 2011

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

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

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

/s/ Jerry R. Levine
Jerry R. Levine
Director

/s/ Joseph E. Cappy
Joseph E. Cappy
Director

27

28

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
iNdex tO CONSOLidAted FiNANCiAL StAteMeNtS

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

ANNuAl RepORT

Report of Independent Registered Public Accounting Firm    

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

30

31

32

33

34

35

Board of Directors and Stockholders 
AAON, Inc. 

We have audited the accompanying consolidated balance sheets of AAON, Inc. (a Nevada Corporation) and subsidiaries’ (collectively 
referred to as the “Company”) as of December 31, 2010 and 2009, 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, 2010. 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, 2010 and 2009, and the results of their operations and their cash flows for each of the three years in the 
period ended December 31, 2010, 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. and 
subsidiaries internal control over financial reporting as of December 31, 2010, 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, 2011, 
expressed an unqualified opinion on the effectiveness of internal control over financial reporting.

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 10, 2011

29

30

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
deCeMBeR 31,

AAON, iNC., ANd SuBSidiARieS  
CONSOLidAted StAteMeNtS OF iNCOMe

ANNuAl RepORT

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

yeARS eNdiNg deCeMBeR 31,

2010

2009

2008

(in thousands, except per share data)

$ 

244,552   $ 

245,282   $ 

279,725

       189,364

       177,737

       212,549

         55,188

         67,545

         67,176

         22,473

         23,791

         23,788

         32,715

         43,754

         43,388

  (45) 

258

(235)

  (9) 

71

76           

             (71) 

27

724

$ 

$ 

$ 

$ 

         32,693

         43,892

         44,068

         10,799

         16,171

         15,479

21,894 $ 

27,721 $ 

28,589

1.30 $ 

1.30 $ 

0.36 $ 

1.61 $ 

1.60 $ 

0.36 $ 

16,799

16,893

17,187

17,309

1.63

1.60

0.32

17,560

17,855

The accompanying notes are an integral part of these statements.

AAON, iNC., ANd SuBSidiARieS  
CONSOLidAted BALANCe SHeetS

           2009
                                                                                                                                                                              (in thousands, except share and per share data)

deCeMBeR 31,
2010

Assets
Current Assets:

Cash and cash equivalents
Certificates of deposit
Investments held to maturity at amortized cost
Accounts receivable, net
Note receivable, current
Inventories, net
Prepaid expenses and other
Financial derivative asset
Assets held for sale, net
Deferred tax assets

Total Current Assets

Property, plant and equipment:
Land
Buildings

Machinery and equipment
Furniture and fixtures

Total property, plant and equipment
Less: Accumulated depreciation
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
Deferred tax liabilities

Commitments and Contingencies

Stockholders’ equity:

$ 

$ 

$ 

Preferred stock, $.001 par value, 7,500,000 
shares authorized, no shares issued
Common stock, $.004 par value, 75,000,000 shares authorized, 16,505,653 and 
17,214,979 issued and outstanding at December 31, 2010 and 2009, respectively

Additional paid in capital

Accumulated other comprehensive income, net of tax

Retained earnings

Total stockholders’ equity

Total liabilities and stockholders’ equity

$ 

The accompanying notes are an integral part of these statements.

2,393 
1,503
9,520
39,901
26
33,602
656
-
-
4,147

91,748

1,328
45,482

100,559
6,356
153,725
86,307
67,418

1,111

160,277 

- 
15,046
-
21,200
36,246
7,292

-

68

-

-

116,671

116,739

160,277 

$ 

$ 

$ 

$ 

25,639
-
-
33,381
-
28,788
1,087
2,200
1,522
3,623

96,240

1,328
41,697

90,213
7,225
140,463
80,567
59,896

75

156,211

76
8,524
3,100
19,186
30,886
7,326

-

71

644

1,077

116,207

117,999

156,211

31

32

2010 
 
 
 
 
 
 
 
 
 
AAON, iNC., ANd SuBSidiARieS  
CONSOLidAted StAteMeNtS OF StOCkHOLdeRS’ eQuity ANd COMpReHeNSiVe iNCOMe

COMMON StOCk
SHAReS       AMOuNt

pAid-iN
CApitAL

ACCuMuLAted
OtHeR 
COMpReHeNSiVe 
iNCOMe

RetAiNed 
eARNiNgS

tOtAL

(in thousands)

Balance at December 31, 2007

18,054*

$ 

73*

          $            – 

               $       1,942   $ 

  93,405     $      95,420

Comprehensive income:

Net income

Foreign currency translation  
adjustment

Total comprehensive income     

Stock options exercised and 

restricted stock awards vested, 
including tax benefits

Share-based compensation

Stock repurchased and retired

Dividends 

Balance at December 31, 2008

Comprehensive income:

Net income

Foreign currency translation

adjustment

Total comprehensive income

Stock options exercised and 
      restricted stock awards vested,

including tax benefits

Share-based compensation

Stock repurchased and retired

Dividends

Balance at December 31, 2009

Comprehensive income:

Net income

Foreign currency translation
adjustment

Total comprehensive income

Stock options exercised and

restricted stock awards vested,  
including tax benefits

Share-based compensation
Stock repurchased and retired
Dividends 

Balance at December 31, 2010

–

–

366
–

(1,211)

–

17,209

–

–

170

–

(164)

–

17,215

–

–

113

–
(822)
–

–

–

2
–

(4)

–

71

–

–

1

–

(1)

–

  71

–

–

–

–
(3)
–

–

–

–

28,589

(1,164)

–

28,589

(1,164)

27,425

3,307
         750

      (3,519)

–

538

–

–

1,938

848

(2,680)

–

      644 

–
–

–

–

778

–

299

–

–

–

–

–
                –

3,309
         750

      (21,238)

   (24,761)

(5,621)

95,135

(5,621)

     96,522

27,721

27,721

–

–

–

(448)

(6,201)

299

28,020

1,939

848

(3,129)

   (6,201)   

       1,077

   116,207

   117,999

             –

–

       21,894

21,894

–

(1,077)

1,155

78

21,972

1,524

          791
(2,959)
–

–

–
–
–

–

1,524

–
(16,518)
(6,067)

 791
   (19,480)
     (6,067)

16,506  

  $ 

  68         $            0 

                  $      0   $  116,671   $  116,739

* Reflects 3-for-2 stock split effective August 21, 2007

The accompanying notes are an integral part of these statements.

ANNuAl RepORT

AAON, iNC., ANd SuBSidiARieS
CONSOLidAted StAteMeNtS OF CASH FLOwS

   yeARS eNded deCeMBeR 31,

OpeRAtiNg ACtiVitieS

Net income 

Adjustments to reconcile net income to net cash provided

by operating activities:

Depreciation

Amortization of bond premiums

Provision for losses on accounts receivable, net of adjustments 

Provision for excess and obsolete inventories

Share-based compensation

Excess tax benefits from stock options exercised and

restricted stock awards vested

(Gain) loss on disposition of assets

Unrealized gain on financial derivative asset

Deferred income taxes

Changes in assets and liabilities:

Accounts receivable

Inventories

Prepaid expenses and other

Financial derivative asset

Accounts payable

Accrued liabilities

Net cash provided by operating activities

iNVeStiNg ACtiVitieS

Proceeds from sale of property, plant and equipment

Investment in certificates of deposit

Maturities of certificates of deposit

Investments held to maturity

Maturities of investments

Proceeds from assets held for sale

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 benefits from stock options exercised and  
    restricted stock awards vested

Repurchase of stock

Cash dividends paid to stockholders

Net cash used in financing activities

Effects of exchange rate on cash

Net increase (decrease) in cash and cash equivalents

Cash and cash equivalents, beginning of year

Cash and cash equivalents, end of year

2010

2009

2008

(in thousands)

$      21,894 $      27,721 $ 

  28,589

9,886

379

(117)

-

791

(356)

(73)

(14)

(558)

(6,403)

(4,814)

431

2,214

6,522

2,370

32,152

136

(2,745)

1,242

(12,018)

2,119

460

(17,470)

(28,276)

20,839

(20,839)

(76)

1,168

356

(19,480)

(9,168)

(27,200)

78

(23,246)

25,639

9,061

9,412

-

10

410

848

(703)

(59)

(2,200)

3,531

5,495

7,243

(660)

-

(6,334)

842

45,205

135

-

-

-

-

-

(9,774)

(9,639)

9,972

(12,873)

(136)

1,236

703

(3,129)

(5,874)

(10,101)

(95)

25,370

269

-

547

-

750

(1,613)

(27)

-

160

(905)

(4,779)

13

-

449

851

33,447

17

-

-

-

-

-

(9,610)

(9,593)

46,865

(43,964)

(118)

1,696

1,613

(24,761)

(5,791)

(24,460)

(4)

(610)

879

$ 

  2,393 $            25,639 $            269

33

The accompanying notes are an integral part of these statements.

34

2010 
 
 
AAON, iNC., ANd SuBSidiARieS
NOteS tO CONSOLidAted FiNANCiAL StAteMeNtS

deCeMBeR 31, 2010

CONCeNtRAtiONS

Our customers are concentrated primarily in the domestic commercial and industrial new construction and replacement markets. To date, 
our sales have been primarily to the domestic market, with foreign sales accounting for approximately 5% of revenues in 2010. No customer 
accounted for 10% of our sales during 2010, 2009 or 2008 or more than 5% of our accounts receivable balance at December 31, 2010, 2009 
or 2008.

1. BuSiNeSS, SuMMARy OF SigNiFiCANt ACCOuNtiNg pOLiCieS ANd OtHeR FiNANCiAL dAtA

CASH ANd CASH eQuiVALeNtS

ANNuAl RepORT

AAON, Inc. is a Nevada corporation which was incorporated on August 18, 1987. Our operating subsidiaries include AAON, Inc., an Oklahoma 
corporation and AAON Coil Products, Inc., a Texas corporation. The Consolidated Financial Statements include our accounts and the accounts 
of our subsidiaries. Unless the context otherwise requires, references in this Annual Report to “AAON,” the “Company”, “we,” “us,” “our” or “ours” 
refer to AAON, Inc., and our subsidiaries.

We are engaged in the manufacture and sale of air conditioning and heating equipment consisting of rooftop units, chillers, airhandling units, 
make-up air units, heat recovery units, condensing units and coils. All significant intercompany accounts and transactions have been eliminated.

ReVeNue ReCOgNitiON

We recognize revenues from sales of products when the products are shipped and the title and risk of ownership pass to the customer. Final sales 
prices are fixed based on purchase orders. Sales allowances and customer incentives are treated as reductions to sales and are provided for based 
on historical experiences and current estimates. Our policy is to record the collection and payment of sales taxes through a liability account.

We present revenues net of certain payments to our independent manufacturer representatives (“Representatives”). Representatives are national 
companies that are in the business of providing HVAC units and other related products and services to customers. The end user customer orders 
a bundled group of products and services from the Representative and expects the Representative to fulfill the order. Only after the specifications 
are agreed to by the Representative and the customer, and the decision is made to use an AAON HVAC unit, will we receive notice of the order. 
We establish the amount we must receive for our HVAC unit (“minimum sales price”), but do not control the total order price which is negotiated 
by the Representative with the end user customer.

We are responsible for billings and collections resulting from all sales transactions, including those initiated by our Representatives. The 
Representatives submit the total order price to us for invoicing and collection. The total order price includes our minimum sales price and 
an additional amount which may include both the Representatives’ fee and amounts due for additional products and services required by the 
customer. These additional products and services may include controls purchased from another manufacturer to operate the unit, start-up 
services, and curbs for supporting the unit (“Third Party Products”). All are associated with the purchase of a HVAC unit but may be provided by 
the Representative or another third party. The Company is under no obligation related to Third Party Products.

The Representatives do not provide us with a break-out of the amount of the total order price over the minimum sales price which includes 
the Representatives’ fee and Third Party Product amounts (“Due to Representatives”). The Due to Representatives amount is paid only after all 
amounts associated with the order are collected from the customer. The amount of payments to our Representatives was $51.4 million, $58.0 
million and $55.4 million for the years ended December 31, 2010, 2009, and 2008, respectively.

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 our results of operations, financial position and cash flows. We reevaluate our estimates and assumptions on a monthly basis. The most 
significant estimates include the allowance for doubtful accounts, inventory reserves, warranty accrual, medical insurance accrual, share-based 
compensation and the fair value of the derivative. Actual results could differ materially from those estimates.

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

CeRtiFiCAteS OF depOSit

We have $1.5 million of current assets in certificates of deposit as of December 31, 2010 with various maturities of less than one year. The 
certificates of deposit bear interest ranging from 0.5% to 4.3% per annum. We did not invest in any certificates of deposit in 2009 or 2008.

iNVeStMeNtS HeLd tO MAtuRity

Our investments held to maturity include $9.5 million of current assets in corporate notes and bonds with maturities of less than one year. The 
investments have moderate risk with S&P ratings ranging from AA+ to BBB-. We did not invest in any investments held to maturity in 2009 
or 2008.

The following summarizes the amortized cost and estimated fair value of our investments held to maturity:

AMORtized 
COSt(1)

gROSS 
uNReALized 
gAiN

gROSS 
uNReALized 
LOSS

FAiR VALue

(in thousands)

Current Assets:

Investments held to maturity

Total

$ 

$ 

9,520 $ 

9,520            $ 

- $ 

-             $ 

- $ 

- $ 

9,520

9,520

(1) We evaluate for other-than-temporary impairments on a quarterly basis.

ACCOuNtS ReCeiVABLe

We grant credit to our customers and perform ongoing credit evaluations. We generally do not require collateral or charge interest. We establish 
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. Accounts are considered past due when the balance has been outstanding for greater than ninety days. 
Past due accounts are generally written off against the allowance for doubtful accounts only after all collection attempts have been exhausted. 
There are no concentrations of credit risk.

35

36

2010 
 
Accounts receivable and the related allowance for doubtful accounts are as follows:

Inventory balances at December 31, 2010 and 2009, and the related changes in the allowance for excess and obsolete inventories
for the three years ended December 31, 2010, 2009 and 2008, are as follows:

ANNuAl RepORT

deCeMBeR 31,

2010

2009

(in thousands)

$ 

$ 

40,501  

(600)

39,901  

$ 

$ 

34,157

(776)

33,381

yeARS eNded deCeMBeR 31,

2010

2009

2008

(in thousands)

$ 

$ 

776

617

(734)

(59)

600

$ 

$ 

795

629

(630)

(18)

776

$ 

407

674

(127)

(159)

$ 

795

Accounts receivable

Less: Allowance for doubtful accounts

Total, net

Allowance for doubtful accounts:

Balance, beginning of period

Provision for losses on accounts receivable

Adjustments to provision

Accounts receivable written off, net of recoveries

Balance, end of period

NOte ReCeiVABLe

In September 2010, we sold our Canadian facility (see Note 11, Canadian Facility) and assumed a note receivable from one borrower secured by 
the property. The $1.1 million, fifteen-year note receivable is based on a 4.0% interest rate with a $0.6 million balloon payment due in October 
2025. The note calls for monthly combined interest and principal payments beginning in October 2010. Interest payments are recognized in 
interest income.

We evaluate for impairment on a quarterly basis. We determine the note receivable to be impaired if we are uncertain of the collectability of the 
note based on the contractual terms. The loan is secured through right of return on the property. The loan was current as of December 31, 2010. 
The note receivable is not considered impaired and no impairment was recorded at December 31, 2010. There are no concentrations of credit risk

iNVeNtORieS

Inventories are valued at the lower of cost or market. Cost is determined by the first-in, first-out (“FIFO”) method. We establish 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.

Raw materials

Work in process

Finished goods

Less: Allowance for excess and obsolete inventories

Total, net

deCeMBeR 31,

2010

2009

(in thousands)

$ 

28,560 $ 

26,581

         3,334

         2,058

       33,952

(350)

         1,835

         1,132

       29,548

(760)

$ 

33,602  

$ 

28,788

yeARS eNded deCeMBeR 31,

2010

2009

2008

(in thousands)

Allowance for excess and obsolete inventories:

Balance, beginning of period

$            760

$            350

$            350

Provision for excess and obsolete inventories

Adjustments to reserve

Inventories written off

Balance, end of period

FiNANCiAL deRiVAtiVe

800

(800)

(410)

  350

$ 

1,849

(1,439)

-

800

(800)

-

$            760

$            350

We entered into a financial derivative instrument in the third quarter of 2009 with a large financial institution to mitigate our exposure to 
volatility in copper prices. We monitored our financial derivative and the credit worthiness of the financial institution. We did not incur losses 
due to counterparty non-performance. We do not use derivatives for speculative purposes.

The financial derivative contract began settling monthly in January 2010 and concluded in December 2010. The contract was for a total of 
2,250,000 pounds of copper at $2.383 per pound. In March 2010, we locked in the settlement price of $3.3975 per pound for the remainder of 
2010. Prior to locking in the settlement price, we would have been subject to gains which we would have recorded as a financial derivative asset if 
the forward copper commodity prices increased and losses which we would have recorded as a financial derivative liability if they decreased. We 
were in an unrealized gain position on the financial derivative asset during 2009 and 2010.

We settled the derivative at December 31, 2010 and recognized the following derivative assets at fair value in the Consolidated Balance Sheets for 
the year ended December 31, 2009:

type OF CONtRACt

iNCOMe StAteMeNt LOCAtiON

Derivatives not designated as hedging instruments:

Commodity futures contract

Derivative assets

Total Derivatives not designated as hedging instruments

 AMOuNt

(in thousands)

$            2,200

$            2,200

We used COMEX index pricing to support our fair value calculation, which is a Level 2 input per the valuation hierarchy as the pricing is for 
instruments similar but not identical to the contract we settled. We did not designate the financial derivative as a cash flow hedge. We recorded 
changes in the financial derivative’s fair value in earnings based on mark-to-market accounting. We recorded adjustments of $14,000 and $2.2 
million ($1.4 million after tax) to cost of sales from the unrealized gain on derivative assets at fair value in the Consolidated Statements of Income 
for the years ended 2010 and 2009 respectively. 

37

38

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
We recorded the following unrealized gain on our financial derivative asset in the Consolidated Statements of Income for the twelve months 
ended December 31, 2010 and 2009 respectively:

ACCRued LiABiLitieS

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

ANNuAl RepORT

2010

2009

(in thousands)

$ 

7,300

$ 

  7,200

    9,668

    2,398

    7,975

    1,633

           855

           591

         734

           1,410

          245

           377

$ 

21,200

$ 

19,186

Warranty

Due to Representatives1

Payroll

Workers’ compensation

Medical self-insurance

Employee benefits and other

Total

1Due to Representatives was previously described as Commissions. We will use the term Due to Representatives going forward
to better represent the true nature of these items, which is the excess of the total order price over the minimum sales price, which
includes both the Representatives’ fee and Third Party Products.

wARRANtieS

A provision is made for estimated warranty costs at the time the related products are sold based upon the warranty period,
historical trends, new products and any known identifiable warranty issues. Warranty expense was $4.5 million, $4.8 million and
$4.0 million for the years ended December 31, 2010, 2009 and 2008, respectively.

Changes in the warranty accrual during the years ended December 31, 2010, 2008 and 2007 are as follows:

2010

2009

2008

(in thousands)

Balance, beginning of the year

$ 

  7,200

$ 

6,589

$ 

6,308

Payments made

Warranties issued

Adjustments related to changes in estimates

Balance, end of period

    (4,405)

     3,987

            518

    (4,211)

     4,822

            -

$ 

  7,300

$ 

  7,200

$ 

  (3,608)

  3,889

  -

6,589

In 2010, the provision for warranties was increased due to the introduction of the RQ product line and the implementation of
extended warranty provisions for the RQ series.

type OF CONtRACt

iNCOMe StAteMeNt LOCAtiON

Financial derivative not designated as hedging instruments:

Commodity futures contract

Cost of sales 

Total financial derivative not designated as hedging instruments

type OF CONtRACt

iNCOMe StAteMeNt LOCAtiON

Derivatives not designated as hedging instruments:

Commodity futures contract

Cost of Sales

Total Derivatives not designated as hedging instruments

 AMOuNt

(in thousands)

      $            14

      $            14

 AMOuNt

(in thousands)

$            2,200

$            2,200

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. Depreciation expense on property, plant and equipment is recorded primarily 
to cost of sales with an immaterial amount recorded to selling, general, and administrative expenses using the straight-line method over the 
following estimated useful lives:

deSCRiptiON

Buildings

Machinery and Equipment

Furniture and Fixtures

iMpAiRMeNt OF LONg-LiVed ASSetS

yeARS

10-40

3-15

2-5

We evaluate 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 2010, 2009 or 2008.

COMMitMeNtS ANd CONtRACtuAL AgReeMeNtS

We are a party to several short-term, cancelable and noncancelable, fixed price contracts with major suppliers for the purchase of raw material 
and component parts. We expect to receive delivery of raw materials for use in our manufacturing operations. These contracts are not accounted 
for as derivative instruments because they meet the normal purchases and sales exemption.

In the normal course of business we expect to purchase 1.4 million pounds of aluminum in the form of legally binding commitments at $1.138 
per pound or $1.6 million.

39

40

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ANNuAl RepORT

eARNiNgS peR SHARe

pROFit SHARiNg BONuS pLAN

Basic net income per share is calculated by dividing net income by the weighted average number of shares of common stock outstanding during 
the period. Diluted net income per share assumes the conversion of all potentially dilutive securities and is calculated by dividing net income by 
the sum of the weighted average number of shares of common stock outstanding plus all potentially dilutive securities. Dilutive common shares 
consist primarily of stock options and restricted stock awards.

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

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

Earnings per share

Basic

Diluted

  2010

yeARS eNded,
2009

2008

(in thousands except share and per share data)

$ 

21,894 

$ 

27,721 

$ 

28,589  

16,798,777

17,186,930

17,560,295

94,151

122,038

294,568

16,892,928

17,308,968

17,854,863

$ 

$ 

1.30

1.30

$ 

$ 

1.61

1.60

$ 

$ 

1.63

1.60

Anti-dilutive shares

Weighted average exercise price

81,000

226,950

308,250

$ 

22.84

$ 

15.64

$ 

16.63

AdVeRtiSiNg

Advertising costs are expensed as incurred. Advertising expense was approximately $877,000, $761,000 and $635,000 for the years ended 
December 31, 2010, 2009 and 2008, respectively.

ReSeARCH ANd deVeLOpMeNt

We maintain a discretionary profit sharing bonus plan under which 10% of pre-tax profit at each subsidiary is paid to eligible employees on a 
quarterly basis in order to reward employee productivity. Eligible employees are regular full-time employees who are actively employed and 
working on the first day of the calendar quarter and remain continuously, actively employed and working on the last day of the quarter and who 
work at least 80% of the quarter. Profit sharing expense was $3.8 million, $4.8 million and $5.1 million for the years ended December 31, 2010, 
2009 and 2008, respectively.

deFiNed CONtRiButiON pLAN - 401(k)

We sponsor a defined contribution benefit plan (“the Plan”). Eligible employees may make contributions in accordance with the Plan and IRS 
guidelines. In addition to the traditional 401(k), effective July 2010, eligible employees were given the option of making an after-tax contribution 
to a Roth 401(k) or a combination of both. Effective May 30, 2005, the Plan was amended to provide for automatic enrollment and provided 
for an automatic increase to the deferral percentage 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 we paid for the plan were approximately $97,000, $81,000 and $93,000 for the years ended 2010, 2009 and 2008, 
respectively.

After January 1, 2007, our matching increased to 50% of the employee’s salary deferral up to the first 9% of compensation. From January 1, 2006 
to December 31, 2006, we matched 50% of the employee’s salary deferral up to the first 7% of compensation. We contribute in the form of cash 
and direct the investment to shares of AAON stock. Employees are 100% vested in salary deferral contributions and vest 20% per year at the end 
of years two through six of employment in employer matching contributions. We made matching contributions of $1.7 million, $1.2 million and 
$1.4 million in 2010, 2009 and 2008, respectively.

FAiR VALue MeASuReMeNtS

We follow the provisions of FASC Topic 820, Fair Value Measurements and Disclosures related to financial assets and liabilities that are being 
measured and reported on a fair value basis. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an 
orderly transaction between market participants in the principal market at the measurement date (exit price). We are required to classify fair 
value measurements in one of the following categories:

Level 1 inputs which are defined as quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the 
ability to access at the measurement date.

Level 2 inputs which are defined as inputs other than quoted prices included within Level 1 that are observable for the assets or liabilities, either 
directly or indirectly.

Level 3 inputs are defined as unobservable inputs for the assets or liabilities.

Financial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. Our assessment of 
the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of the fair value of assets and 
liabilities and their placement within the fair value hierarchy levels.

Research and development costs are expensed as incurred. Research and development expense was $3.6 million, $3.1 million and $2.6 million for 
the years ended December 31, 2010, 2009 and 2008, respectively.

FiNANCiAL deRiVAtiVe FAiR VALue MeASuReMeNtS

SHippiNg ANd HANdLiNg

We incur 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.

Our financial derivative asset consisted of a forward purchase contract that was measured at fair value using the quoted prices in the COMEX 
commodity markets which is the lowest level of input significant to measurement. The measurement is based on pricing for instruments similar 
but not identical to the contract we settled. These prices were based upon regularly traded commodities on COMEX. The financial derivative 
contract began settling monthly in January 2010 and ending in December 2010. The contract was for a total of 2,250,000 pounds of copper at 
$2.383 per pound. We locked in the settlement price of $3.3975 per pound. We settled the derivative in December 2010.

41

42

2010 
 
 
 
 
 
 
 
 
 
 
 
We used COMEX index pricing to support our fair value calculation, which is a Level 2 input per the valuation hierarchy as the pricing is for 
instruments similar but not identical to the contract we settled. We did not designate the financial derivative as a cash flow hedge. We recorded 
changes in the financial derivative’s fair value in earnings based on mark-to-market accounting. For the year ended December 31, 2010, we 
recorded approximately $14,000 to cost of sales from the unrealized gain on our financial derivative asset at fair value in the Consolidated 
Statements of Income.

The following table presents the fair value of our assets and liabilities measured at fair value on a recurring basis as of December 31, 2009 in the 
Consolidated Balance Sheets:

QuOted pRiCeS iN 
ACtiVe MARketS FOR ideNtiCAL 
ASSetS  
LeVeL 1

SigNiFiCANt OtHeR 
OBSeRVABLe iNputS
LeVeL 2

SigNiFiCANt 
uNOBSeRVABLe iNputS
LeVeL 3

tOtAL

(in  thousands)

$        -

$   2,200

$       -

$  2,200

Assets:

Derivative Assets

SuBSeQueNt eVeNtS

In February 2011, a severe snowstorm in the Tulsa area caused property damage to a roof over a portion of our manufacturing facility at 2425 
South Yukon Ave. The company does not expect the repair of the property damage or the temporary interruption in our manufacturing processes 
to have a material impact on our Consolidated Financial Statements.

New ACCOuNtiNg pRONOuNCeMeNtS

In January 2010, the FASB issued ASU 2010-06, Fair Value Measurements and Disclosures (Topic 820): Improving Disclosures about Fair Value 
Measurements (“ASU 2010-06”), which requires reporting entities to provide information about movements of assets among Levels 1 and 2 of 
the three-tier fair value hierarchy. Separate disclosures need to be made of the amounts of significant transfers in and out of Level 1 and Level 2 
fair value measurements along with a description of the reason for the transfers. Also, disclosure of activity in Level 3 fair value measurements 
needs to be made on a gross basis rather than as one net number. ASU 2010-06 also requires: (1) fair value measurement disclosures for each 
class of assets and liabilities, and (2) disclosures about the valuation techniques and inputs used to measure fair value for both recurring and 
nonrecurring fair value measurements, which are required for fair value measurements that fall in either Level 2 or Level 3. The new disclosures 
and clarifications of existing disclosures are effective for interim and annual reporting periods beginning after December 15, 2009, except for 
the Level 3 activity disclosures, which are effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal 
years. Adoption of ASU 2010-06 did not have a material impact on our Consolidated Financial Statements.

In February 2010, the FASB issued ASU 2010-09, Subsequent Events (“ASU 2010-09”), which discontinues the requirement that entities disclose 
the date through which they have evaluated subsequent events. ASU 2010-09 is effective upon issuance. We adopted ASU 2010-09 for reporting 
in the fourth quarter of 2009. Adoption of ASU 2010-09 did not have a material impact on our Consolidated Financial Statements.

ANNuAl RepORT

2. SuppLeMeNtAL CASH FLOw iNFORMAtiON

Interest payments of approximately $45,000, $9,000 and $71,000 were made during the years ended December 31, 2010, 2009 and 2008, 
respectively. Payments for income taxes of $7.8 million, $10.0 million and $12.7 million were made during the years ended December 31, 2010, 
2009 and 2008, respectively. We sold the $1.5 million asset held for sale and recorded a $1.1 million note receivable in September 2010. As of 
December 31, 2010, we have received $0.4 million in cash payments related to the sale. Cash dividends of $9.2 million were paid in 2010. Cash 
dividends $5.9 million were paid in 2009, and we accrued a liability for payment of $3.1 million of dividends in January 2010. Cash dividends of 
$5.8 million were paid in 2008, and $2.8 million in dividends were declared and accrued as a liability in December 2008 for payment in January 
2009.

3. ReVOLViNg CRedit FACiLity

Our 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 $0.9 million. Borrowings available under the revolving credit 
facility at December 31, 2010, were $14.3 million. Interest on borrowings is payable monthly at the greater of 4.0% or LIBOR plus 2.5% (4.0% at 
December 31, 2010). No fees are associated with the unused portion of the committed amount. We had no borrowings outstanding under the 
revolving credit facility at December 31, 2010. We had no borrowings outstanding under the revolving credit facility at December 31, 2009. We 
had $2.9 million outstanding under the revolving credit facility at December 31, 2008.

At December 31, 2010, 2009 and 2008, we were in compliance with our financial ratio covenants. The covenants are related to our tangible 
net worth, total liabilities to tangible net worth ratio and working capital. At December 31, 2010 our tangible net worth was $117.0 million 
which meets the requirement of being at or above $75.0 million. Our total liabilities to tangible net worth ratio was 1 to 3 which meets the 
requirement of not being above 2 to 1. Our working capital was $55.5 million which meets the requirement of being at or above $30.0 million. 
On July 30, 2010, we renewed the line of credit with a maturity date of July 30, 2011 with terms substantially the same as the previous agreement. 
Subsequently, as a requirement of our workers compensation insurance, our standby letter of credit was extended with an increase of $1.5 million 
to $2.4 million and will expire December 31, 2011. We expect to renew our revolving credit agreement in July 2011. We do not anticipate that the 
current situation in the credit market will impact our renewal.

4. deBt

Short-term debt at December 31, 2010 and 2009 consisted of notes payable totaling approximately $0 and $76,000 due in 2011 and 2010, 
respectively. In 2010 and 2009, respectively, the notes payable were due in monthly installments of $7,588, with an interest rate of 4.148%, related 
to a computer capital lease.

5. iNCOMe tAxeS

We follow the provisions of FASC Topic 740, Income Taxes, including 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.

We recognize accrued interest and penalties related to unrecognized tax benefits in income tax expense.

The income tax provision consists of the following:

Current

Deferred

yeARS eNdiNg deCeMBeR 31,

2010

2009

2008

(in thousands)

$  10,241  

558

 $  10,799  

$ 

$ 

19,529  

(3,358)

16,171  

$ 

$ 

16,163

(684)

15,479

43

44

2010The reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows:

Federal statutory rate

State income taxes, net of federal benefit

Other

yeARS eNdiNg deCeMBeR 31,

2010

2009

2008

(in thousands)

35%

4%

(6%)

33%

35%

4%

(2%)

37%

35%

3%

(3%)

35%

The “Other” tax rate primarily relates to the domestic production activity credit, certain domestic credits and a change in rate applied to deferred 
taxes.

The tax effect of temporary differences giving rise to our deferred income taxes at December 31 is as follows:

Net current deferred assets and (liabilities) relating to:

Valuation reserves

Warranty accrual

Other accruals

Other, net

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

Depreciation and amortization

NOL

Share-based compensation

deCeMBeR 31,

2010

2009

2008

(in thousands)

$ 

342  

$ 

572  

$ 

2,385

1,311  

109

4,147  

7,796  

-

(504)

$ 

$ 

2,544

1,297  

(790)

3,623  

7,820  

-

(494)

$ 

$ 

$ 

$ 

$ 

7,292  

$ 

7,326  

$ 

446

2,567

1,262

(40)

4,235

7,247

(2,265)

(400)

4,582

The total net operating loss (“NOL”) deferred tax asset related to AAON Canada was utilized in 2009. We file income tax returns in the U.S. 
federal jurisdiction, and various state and foreign jurisdictions.

There are no unrecognized tax benefits that if recognized would impact the effective tax rate at December 31, 2010. Therefore, there are no related 
accruals for interest and penalties related to unrecognized tax benefits at December 31, 2010.

As of December 31, 2010, we are subject to U.S. Federal income tax examinations for the tax years 2007 through 2010, and to non-U.S. income 
tax examinations for the tax years of 2007 through 2010. In addition, we are subject to state and local income tax examinations for the tax years 
2006 through 2010.

6. SHARe-BASed COMpeNSAtiON

We have historically maintained a stock option plan for key employees, directors and consultants (“the 1992 Plan”). The 1992 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 year, commencing one 
year after the date of grant. 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, our stockholders adopted a Long-Term Incentive Plan (“LTIP”) 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. Under the LTIP, the exercise price of shares granted may not be less than 100% of the fair market value at the date of the grant.

ANNuAl RepORT

We apply the provisions of FASC Topic 718, Compensation – Stock Compensation. The compensation cost is based on the grant date fair value 
of stock options issued calculated using a Black-Scholes-Merton Option Pricing Model, or the grant date fair value of a restricted share less the 
present value of dividends.

We recognized approximately $446,000, $484,000 and $400,000 at December 31, 2010, 2009 and 2008, respectively, in pre-tax compensation 
expense related to stock options in the Consolidated Statements of Income. The total pre-tax compensation cost related to unvested stock options 
not yet recognized as of December 31, 2010 is $1.1 million and is expected to be recognized over a weighted-average period of 2.3 years.

The following weighted average assumptions were used to determine the fair value of the stock options granted on the original grant date for 
expense recognition purposes for options granted during December 31, 2010, 2009 and 2008:

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

 2010

2009

2008

1.53% 

45.37% 

2.63%

7 years

0%

1.53%

45.29%

2.44%

8 years

31%

1.87% 

47.47% 

2.53%

7 years

0%

1.87%

46.94%

2.62%

8 years

31%

1.72%

45.16%

3.08%

7 years

0%

1.72%

44.47%

3.05%

8 years

31%

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 our stock over time periods equal to the expected life at grant date.

The following is a summary of stock options outstanding as of December 31, 2010:

OptiONS OutStANdiNg

OptiONS exeRCiSABLe

RANge OF
exeRCiSe 
pRiCeS

9.68 – 10.82

11.29 – 15.99

 16.13 – 20.68

21.42 – 27.45

Total

NuMBeR
OutStANdiNg At
deCeMBeR 31, 
2010

weigHted AVeRAge
ReMAiNiNg 
CONtRACtuAL LiFe

weigHted 
AVeRAge 
exeRCiSe 
pRiCe

AggRegAte 
iNtRiNSiC 
VALue

NuMBeR
exeRCiSABLe At
deCeMBeR 31, 
2010

weigHted 
AVeRAge 
exeRCiSe 
pRiCe

68,900

172,800

118,800

59,000

419,500

3.18

6.61

6.92

9.41

6.53

$ 

  10.24

$ 

14.59

18.47

23.66

$ 

16.25

$ 

17.97

13.62

9.74

4.55

14.42

68,900

$ 

92,200

50,800

1,000

212,900

$ 

10.24

13.93

18.18

21.42

13.79

45

46

2010 
 
 
 
 
 
 
 
 
 
A summary of option activity under the plan is as follows:

OptiONS

SHAReS

weigHted 
AVeRAge 
exeRCiSe pRiCe

weigHted AVeRAge 
ReMAiNiNg 
CONtRACtuAL teRM

AggRegAte 
iNtRiNSiC 
VALue ($000)

Outstanding at December 31, 2007

Granted

Exercised

Forfeited or Expired

Outstanding at December 31, 2008

Granted

Exercised

Forfeited or Expired

Outstanding at December 31, 2009

Granted

Exercised

Forfeited or Expired

Outstanding at December 31, 2010

Exercisable at December 31, 2010

928,933

50,000

(348,075)

(51,282)

579,576

93,000

(164,013)

(48,050)

460,513

81,000

(99,613)

(22,400)

419,500

212,900

$ 

$ 

9.47

16.64

4.87

15.76

12.29

15.92

7.53

17.00

14.22

22.70

11.73

18.02

16.25

13.79

6.53

4.89

$ 

$ 

5,017

3,071

The weighted average grant date fair value of options granted during 2010 and 2009 was $9.86 and $6.87, respectively. The total intrinsic value of 
options exercised during December 31, 2010, 2009 and 2008 was $2.4 million, $3.3 million and $6.4 million, respectively. The cash received from 
options exercised during December 31, 2010, 2009 and 2008 was $1.2 million, $1.2 million and $1.7 million, respectively. The impact of these 
cash receipts is included in financing activities in the accompanying Consolidated Statements of Cash Flows.

A summary of the status of the unvested stock options is as follows:

Unvested at January 1, 2010

Granted

Vested

Forfeited

Unvested at December 31, 2010

SHAReS

216,200

81,000

(74,500)

(16,100)

206,600

weigHted AVeRAge gRANt 
dAte FAiR VALue

                $                          6.77

             9.86

             6.41                 

            7.39

                $                          8.06

The total grant date fair value of options vested during December 31, 2010 and 2009 was $0.5 million and $0.5 million, respectively.

During 2007, the Compensation Committee of the Board of Directors authorized and issued restricted stock awards to directors and key 
employees. 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 awards granted to directors vest one-third each year. All other restricted stock 
awards vest 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 restricted stock awards is based on the fair market value of AAON common stock on the respective grant dates, reduced for the 
present value of dividends.

ANNuAl RepORT

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 2010 and 2009 was $22.24 and $19.72 per share, 
respectively. We recognized approximately $344,000, $364,000 and $350,000 at December 31, 2010, 2009 and 2008, respectively in pre-tax 
compensation expense related to restricted stock awards in the Consolidated Statements of Income. In addition, as of December 31, 2010, 
unrecognized compensation cost related to unvested restricted stock awards was approximately $431,000 which is expected to be recognized over 
a weighted average period of 1.6 years.

A summary of the unvested restricted stock awards is as follows:

Unvested at January 1, 2010

Granted

Vested

Forfeited 

Unvested at December 31, 2010

SHAReS

33,250

14,850

(19,000)

    (1,050)

28,050

FASC Topic 718, Compensation – Stock Compensation requires that cash flows from the exercise of stock options resulting from tax benefits in 
excess of recognized cumulative compensation costs be classified as financing cash flows. During December 31, 2010, 2009 and 2008, the excess 
tax benefits of stock options exercised and restricted stock awards vested was $0.4 million, $0.7 million and $1.6 million respectively.

7. 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 our 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 our Common Stock. The rights become exercisable after a person has acquired, or a tender 
offer is made for, 15% or more of our 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 our Common Stock having a market value equal to two times the exercise 
price.

The rights may be redeemed by us for $0.001 per right until a person or group has acquired 15% of our Common Stock. The rights expire on 
August 20, 2012.

8. StOCk RepuRCHASe

On November 6, 2007, we began a stock buyback program, targeting repurchases of up to approximately 10% (1.8 million shares) of our 
outstanding stock from time to time in open market transactions. On May 12, 2010, we completed the stock buyback program. Through May 12, 
2010, we repurchased a total of 1,800,000 shares under this program for an aggregate price of $36,061,425, or an average price of $20.03 per share. 
We purchased the shares at current market prices.

On May 17, 2010, the Board authorized a new stock buyback program, targeting repurchases of up to approximately 5% (approximately 850,000 
shares) of our outstanding stock from time to time in open market transactions. Through December 31, 2010, we repurchased a total of 478,493 
shares under this program for an aggregate price of $11,509,433, or an average price of $24.05 per share. We purchased the shares at current 
market prices.

On July 1, 2005, we entered into a stock repurchase arrangement by which employee participants in our 401(k) savings and investment plan are 
entitled to have shares of AAON stock in their accounts sold to us 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, 2010, we repurchased 993,155 shares for an aggregate price of $18,042,789, or an average price of $18.17 per share. We purchased the shares at 
current market prices.

47

48

2010 
 
 
 
 
 
12. QuARteRLy ReSuLtS (uNAudited)

The following is a summary of the quarterly results of operations for the years ending December 31, 2010 and 2009:

ANNuAl RepORT

2010

Net sales

Gross profit

Net income

Earnings per share:

Basic

Diluted

2009

Net sales

Gross profit

Net income

Earnings per share:

Basic

Diluted

QuARteR eNded

MARCH 31

juNe 30

SepteMBeR 30

deCeMBeR 31

(in thousands, except per share data)

$   49,309

    12,994

      5,118

        0.30

        0.30

$   64,531

    15,506

      5,821

        0.34

        0.34

     $   64,886

        12,497

          5,173

           0.31

           0.31

     $   65,826

        14,191

          5,782

           0.35

           0.35

QuARteR eNded

MARCH 31

juNe 30

SepteMBeR 30

deCeMBeR 31

(in thousands, except per share data)

$   63,965

    16,934

      6,728

        0.39

        0.39

$   68,597

    18,104

      7,097

        0.41

        0.41

     $   58,492

        17,728*

          7,741*

           0.45*

           0.45*

     $   54,228

        14,779*

          6,155*

           0.36*

           0.36*

*Includes the impact of the unrealized gain from the derivative.

On November 7, 2006, the Board of Directors authorized us to repurchase shares from certain directors and officers following their exercise of 
stock options. The maximum number of shares to be repurchased under the program is unknown as the amount is contingent on the number of 
shares sold. Through December 31, 2010, we repurchased 379,750 shares for an aggregate price of $7,894,792, or an average price of $20.79 per 
share. We purchased the shares at current market prices.

9. diVideNdS

On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid semi-annual dividends of $0.20 
per share. The Board of Directors approved dividend payments of $0.16 per share related to the 3 for 2 stock split effective August 21, 2007. The 
Board of Directors approved future dividend payments of $0.18 per share on May 19, 2009. Board approval is required to determine the date of 
declaration and amount for each semi-annual dividend payment.

Cash dividends of $9.2 million were paid in 2010. Cash dividends of $5.9 million were paid in 2009, and we accrued a liability for payment of $3.1 
million of dividends in January 2010. Cash dividends of $5.8 million were paid in 2008, and $2.8 million in dividends were declared and accrued 
as a liability in December 2008 for payment in January 2009.

10. COMMitMeNtS ANd CONtiNgeNCieS

We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate liability from these 
claims and actions, if any, will not have a material effect on our results of operations or financial position.

11. CANAdiAN FACiLity

On May 18, 2009 we announced the closure of our Canadian facility and filed a form 8-K to that effect. At the same time, we notified the 47 
Canadian employees of the expected closure date. The actual closure date was at the end of September 2009. We accrued and charged to expense 
$0.3 million through December 31, 2009, in closure costs related to employee termination benefits in accordance with Canadian labor laws and 
regulations. We incurred employee termination costs as well as costs to dispose of inventory. We accrued and charged to expense $0.4 million 
as an adjustment to our inventory reserve in second quarter 2009 to account for inventory items we did not transfer to our other locations. The 
following closure costs were included in income from continuing operations in the income statement and paid as of December 31, 2009:

Employee termination benefits

Inventory reserve adjustments

Total

BALANCe
At 6/30/09

$     280

       389

$     669

AdditiONAL 
ACCRuAL

(in thousands)

CHARged tO 
expeNSe

$      26

           -

$      26

$     306

       389

$     695

We reclassified certain fixed assets to assets held for sale upon closure of our Canadian manufacturing operations in September 2009. The assets 
consist of a building and land valued at the lower of cost or market. No additional depreciation expense was taken on the building as of 
October 1, 2009.

In September 2010, we sold the building and land. The sale price was $1.5 million which was equivalent to the carrying value of the assets held for 
sale on our Consolidated Balance Sheets. We assumed a note receivable from one borrower secured by the property. The $1.1 million, fifteen-year 
note receivable is based on a 4.0% interest rate with a $0.6 million balloon payment due in October 2025. The note calls for monthly combined 
interest and principal payments beginning in October 2010. Interest payments are recognized in interest income. The products previously 
manufactured at the Canadian facility will be produced by the Tulsa, Oklahoma and Longview, Texas facilities in the future.

49

50

2010CONSeNt OF iNdepeNdeNt RegiSteRed puBLiC ACCOuNtiNg FiRM 

We have issued our reports dated, March 10, 2011, with respect to the consolidated financial statements and  internal control over financial reporting 
included in the Annual Report of AAON, Inc. on Form 10-K for the year ended December 31, 2010.  We hereby consent to the incorporation by 
reference of said reports in the Registration Statements of AAON, Inc. on Forms S-8 (File No. 333-52824, effective December 28, 2000 and File No. 
333-151915, effective June 25, 2008).

Exhibit 23.1

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 10, 2011

ANNuAl RepORT

Exhibit 31.1

I, Norman H. Asbjornson, certify that:

CeRtiFiCAtiON

1. 

2. 

3. 

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

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

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

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) 

b) 

c) 

d) 

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

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

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

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

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

a) 

b) 

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

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

Date:  March 10, 2011 

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

51

52

2010 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
I, Kathy I. Sheffield, certify that:

CeRtiFiCAtiON

Exhibit 31.2

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

1. 

2. 

3. 

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;

In  connection  with  the  Annual  Report  of  AAON,  Inc.  (the  “Company”),  on  Form  10-K  for  the  year  ended  December  31,  2010,  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:

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;

(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 our results of operations.

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:

March 10, 2011 

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

ANNuAl RepORT

Exhibit 32.1

CeRtiFiCAtiON puRSuANt tO
18 u.S.C. SeCtiON 1350,
AS AdOpted puRSuANt tO
SeCtiON 906 OF tHe SARBANeS-OxLey ACt OF 2002

a) 

b) 

c) 

d) 

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

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

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

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

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

a) 

b) 

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

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

Date:  March 10, 2011 

53

/s/ Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

CeRtiFiCAtiON puRSuANt tO
18 u.S.C. SeCtiON 1350,
AS AdOpted puRSuANt tO
SeCtiON 906 OF tHe SARBANeS-OxLey ACt OF 2002

Exhibit 32.2

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 31, 2010, as filed 
with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kathy I. Sheffield, Chief Financial Officer of the Company, 
certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

March 10, 2011 

/s/ Kathy I. Sheffield

Kathy I. Sheffield
Chief Financial Officer

54

2010 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
OFFiCeRS

BOARd OF diReCtORS

Back row (from left to right): A.H. McElroy, II, Jerry R. Levine, Jack E. Short, Paul K. Lackey, Jr.
Front row (from left to right): John B. Johnson, Jr., Norman H. Asbjornson, Joseph E. Cappy

NORMAN H. ASBjORNSON  
President/CEO

jOHN B. jOHNSON, jR. Secretary

jOSepH e. CAppy was elected a director of 
the Company in 2010.  From 1997 to 2003, 
Mr. Cappy served as the Chairman, President 
and CEO of DollarThrifty Automotive Group.  
From 1987 to 1997 he was Vice President of 
Chrysler Corporation.  From 1982 to 1987 he 
was President and CEO of American Motors 
Corporation.

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.

A.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.

pAuL k. LACkey, jR. 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.

jeRRy R. LeViNe has served as a director 
of the Company since 2008. Since 1999, Mr. 
Levine has provided investor and shareholder 
relations services and advice to the 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

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

Investor Relations 
Jerry Levine,
105 Creek Side Road, 
Mt. Kisco, New York 10549, 
Ph: 914-244-0292, 
Fax: 914-244-0295, 
 jrladvisor@yahoo.com

Executive Offices
2425 South Yukon Avenue, 
Tulsa, Oklahoma 74107

Common Stock 
NASDAQ-AAON

55

56

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.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. 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. 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 which serves as General Counsel of the Company. DaviD E. KnEbEl has served as Vice President of Sales for the Company since 2005. Mr. Knebel has been in the heating and air conditioning industry for over 40 years, holding positions in design, research, software development, engineering, teaching, sales and senior management.tHANkS tO OuR eMpLOyeeS

Edgar Acevedo 

Estronz

Maria D. Acosta
Maria L. Acosta
Martha Acosta
Martin Acosta
Andres Acosta-Lujan
Enriqueta Adame
Derrick Adams
Gary Adams
Larry Adams
Robert Adams
Rodney Adams
Ryan Adams
Timothy Adams
Brian Adkins
Maria Aguayo
Arturo Aguilar
Miguel Aguilera
Ali Al Rubaye
Daniel Alagdon
Martha Alanis
Socorro Alba
Julio Albino
James Alexander
Shannon Alford
Brendan Allen
Donald Allen
Kevin Allen
Earl Alston
Enrique Alvarado
Felipe Alvarado
Wuilson Idomeli 

Alvarado
Jorge Alvarado 

Vargas

Michael Amburgey
Anthony Anderson
Colton Anderson
Elbert Anderson
James Anderson
John Anderson
Jose Andrada
Margarito Angeles
Daniel Anselme
Wesley Anselme
Alfredo Antonio
Daniel Aponte
Lorenzo Aragon
Clyde Archer
Jose Areguin
Uriel Arellano Guerra
Maria Arredondo
Gerardo Arroyo
Eleazar Arroyo 

Alvarez

Norman Asbjornson
Scott Asbjornson
David Ashlock
Gary Ashmore
Derik Audas

Dwight Austin
Ivan Avalos
Jesus Avelar Saldivar
Joseph Avila
Orlando Ayala
Nora Backus
Richard Backus
Dwight Baker
Eric Baker
Jennifer Barbee
Carolyn Barber
Candy Barbosa
Gregory Barker, Jr.
Justin Barlett
Daniel Barnard
David Barnett
Ana Barragan De 

Alteneh
Cesar Barraza
Jose Barrios
Nereyda Barrios De 

Perez

Benigno Barrios 

Orozco
Rosa Barro
Maria Barron
Teresa Barron
Michael Bass
John Bassett
Kevin Battles
Stuart Baugh
Jason Bazan
Robert Beasley, Jr.
Daniel Beck
Lionel Beckman
Kevin Begley
Michael Bell
Guzman Benitez
Ofelia Benitez
Bonnie Benson
Michael Benson
James Berden
Ida Bermudez
Elliot Berryhill
Sergio Beserra
Robert Black
Seth Black
Vickie Black
Brian Blackmon
Debbie Blackmon
Matthew Blakley
Maria Blanco
Elvin Bledsoe
David Blevins
Justin Blevins
Aaron Bodovsky
Gene Boese
Albert Boggus
Lun Boih
Scott Bolden
James Bond

Michael Boney
Debra Booher
William Boone
Ronnie Booth
Rosendo Botello
Demetrius Boyd
John Boyd
Robert Boyd
Brian Bradford
Myoshia Bradley
Christopher Brantley
Arlando Brewer
Terry Brewster
Shahani Britt
Arlunda Brooks
Bernardo Brooks
David Brown
Jermaine Brown
Freddie Brown, Iii
Ronald Brown, Jr.
Johnny Brown, Jr.
Christopher Bryant
William Bryant
Jon Buck
Lloyd Bumbard
Jason Bunnell
Kelli Burkes
Monica Burns
Thomas Burns, Jr.
Shannon Burtch
Lavar Burton
Stephen Burton
Douglas Burtrum
Wayne Bush
Tina Bush Jones
Verenice Bustos
Rhett Butler
Rosa Butler
Jeremy Byram
Michael Cable
Janibal Cabudoy
Alejandro Cadena
Dora Cadena
Jose Cadenas
Cleveland Cage, Jr.
Jerry Cain
Margarito Calderon
Jorge Calixto
Elizabeth Calvillo
Cesar Calzada
Lazaro Cama
Maria Camacho
Jose Camas-Padilla
Adrian Campbell
David Campbell
Arthur Candler
Yong Cantrell
Carlos Caraballo 

Mariani

Refugio Carachure
Jorge Carcamo

Billy Carder
Todd Carner
Vincent Carson
Larry Carter, Jr.
James Cason
Warren Castleberry
Detrick Castor
Patrick Castorena
Soledad Castro
Jose Castro M
Romualdo Castro 

Villegas

Hector Cazares
Elvis Cerda
Francisco Cervantes
Guadalupe Chairez-

Galan

Patrick Chapman
Sergio Charles
Clark Chase
Josh Chattillon
Edgar Chavez
Gregory Chavez
Ramiro Chavez
Rita Chavez
Jose Chavez Perez
Dale Cherry
Daniel Cherry
Adan Chicas
Larenzo Chiles
Kham Cin
Sian Cin
Dim Cing
Man Cing
Nem Cing
Justin Claiborne
George Clark
John Clark
Stephanie Cleveland
William Cleveland
Cary Clingan
Brenda Coats
Kenneth Cochran
Kenneth Cochran, Jr.
Troy Cockrum
Arthur Cole
Joel Coleman
Latoya Coleman
Charles Collins
Laura Collins
Ronald Collins
Stephen Collins
Dale Conkwright
Jude Connolly
Emilio Contreras
Roberto Contreras
Thomas Contreras
Maria Cook
Mark Cook
Dwayne Cooks
Michael Coolidge

Scott Coon
Donna Coonfield
James Cooper
Alvis Copeland
Pablo Cordova 
Cordova
Arlene Corell
Elaine Corkhill
Steven Corley
Dusty Cornelius
Alberto Corona
Fernando Corona
Roberto Corona
Eduardo Cortez
Rosa Cortez
Kenneth Cotham
Jonathan Coti
Curtis Counce
Billy Cox
Jerry Cox
Maxine Cox
Adrian Crabtree
Richard Craite
Steven Crase
Devin Creech
Juan Crespo-
Maisonet
Mikel Crews
Darrell Crow
Carolyn Crutchfield
Jose Cuadroz
Victory Cullom, Ii
Robert Cummings
Gene Curtis
Kevin Cyrus
Hau Dal
Christopher Daniels
Gwendolyn Daniels
John Daniels
Kyle Daniels
Minh Dao
William Daugherty
Jenifur Davidson
Byron Davis
Carolyn Davis
Cathy Davis
Jerry Davis
Marleitta Davis
Matthew Davis
Rhonda Davis
Richard Davis
Samuel Davis
Cookie Davison
Wilfredo De Jesus
Otilia De Jones
Matilde De La Torre
Alvaro De Leon 
Mendoza
Pedro De Los 
Santos, Jr.
Freddie Deboe

Bobby Degraffenreid
Ismael Delapaz
Eva Delatorre
Jerry Delmar
Juana Delobo
Andres Delos Santos
Raquel Deluna
Bruce Derr
Audencia Devilla
Roy Deville
Charles Deweese
Cheikh Diallo
Ciin Dim
Man Dim
Cin Ding
Dedric Dishmon
Homer Dodd
Rickey Dodson
Edreys Dominguez
Pablo Dominguez
Cin Don
Thang Dop Mui
Jennifer Dossman
Jodi Doty
Suanne Doty
Michael Drew
Cathryn Dubbs
Charles Duke
Linda Dunec
Cortney Dunn
Ralph Durbin
Yolanda Durham
Randy Dwiggins
Wendell Easiley
Stephen Edmonds
Harvey Ellis
Gregory English
Tinisha English
Eva Enriquez
Steven Ervin
Blanca Escobar
Jose Escobedo
Teresa Escobedo
Norberto Esparza-

Torres

Leonardo Espinoza 

Flores

Engracia Espinoza 

Navarro
Jesus Estrada-
Gonzalez
Stephen Etter
Gilda Etumudor
Calvin Eubanks
Gareth Evans
Otis Evans
Reginald Everidge, Jr.
Shawn Fairley
James Fannin
Richard Faust
Robert Fergus
Elizabeth Ferguson
Catalina Fernandez
Fabiola Fernandez
Samuel Fields

Jesse Figueroa
Christian Figueroa 

Mauras
Sterlyn Finch
Mack Finkley, Jr.
Anthony Fisher
Bruce Fisher
Anthony Fizer
Copotenia Fletcher, Jr.
Alejandro Flores
Carolina Flores
Efigenia Flores
Juana Flores
Laura Flores
Francisco Flores 

Esparza
Ruby Floyd
Vicky Floyd
Mark Fly
Sharon Fontenot
Harold Ford
Sheila Forrest
Alex Foster
Bradley Foster
Christopher Foster
Frederick Foster
Jacob Foster
Michael Foster
Joseph Fowler
Loretta Fowlkes
Stephen Fox
Kenneth Foyil
Phillip Frank
Damion Franklin
Warren Franklin
Revonda Franks
Matthew Frederick
Gary Frederiksen, Jr.
Gregory Freeman
Olga French
Angel Frias
Barry Friend
Wade Fuller
Rony Gadiwalla
Jeff Galapon
Ranulfo Galicia
Brenda Galindo
James Galindo
Maria Galindo
John Gall
Belinda Galvan
Ma Galvan
Maria Galvan
Angel Garcia
Nicklaus Garcia
Roberto Garcia
Isidro Garcia Arriaga
Norma Garibay
Patrick Garrett, Sr.
Carlos Garza
Pedro Garza
Ralph Gasaway
Steve Geary
James George
Mohanad Gharrawi

Penny Glossinger
Jim Goekler
Gary Goff
Emmett Goins
Benjamin Goldman
Elpidio Gomez
Hector Gomez
Jose Gomez
Maria Gomez
Moises Gomez
Maria Gomez Medina
Daniel Gomez-Sigala
Adrian Gonzalez
Imelda Gonzalez
John Gonzalez
Marisela Gonzalez
Raul Gonzalez
Victor Gonzalez
Barry Goodson
Dale Graham
Buenas Granados
Jermaine Grant
Jesse Green, Jr.
John Griffin
Ronald Grimes
Daniel Groff
Carolina Guillen
Ronald Guinn
Cassie Gunn
Mark Gutierrez
Georgina Guzman
Nancy Hackney
Christopher Halcomb
Joshua Halfpap
Dennis Hall
Jack Hall
Kelly Hall
Koren Hall
Stephen Hall
Scott Hamilton
Otis Hamilton
Jeffrey Hammer
Jerry Hammonds
Damien Hammons
Sam Hammoud
Samir Hammoud
Donald Harden
Brandon Harper
Brandy Harris
Richard Harris
Stacey Harris
Marcus Harry
Robi Hartmann
Heather Haskins
James Hasselbring
Troy Hatfield
Vung Hau
Kevin Hawkins
Thomas Hawkins
Adam Hawley
Billy Hawley, Jr.
William Hays
Tim Hefflin
Stephen Hegvold
Claude Henderson

Daniel Henderson
Jennifer Henderson
Mike Hensley
Kevin Henson
Alejandro Hernandez
Armando Hernandez
Corcina Hernandez
Eliu Hernandez
Francisco Hernandez
Lily Hernandez
Luis Hernandez
Marcus Hernandez
Maria Hernandez
Mariano Hernandez
Oscar Herrera Rosas
Mark Heston
Takeo Higa
Brenda Higgins
Larry Highfield
Dewayne Hightower
Quinton Hilburn
James Hill
John Hill
Joshua Hill
Travis Hill
Bobby Hillburn
Austin Hines
Willie Hines, Jr.
Juan Hinojosa
Tyson Hinther
Clyde Hitchye
Bon Hoang
Samuel Hobson
Bryan Holland
Donna Holloway
Lawrence Honel
Stephen Hoover
Gary Horn
Terri Horn
Wilburn Horner, Jr.
Stanley Horton
Jerry Houston
David Howard
Larry Howard
Do Ngaih Huai
Nuam Huai
Lydia Hudson
Philip Hudson
Ruben Huerta
Anthony Huffman
Abner Hughes
Jimmy Hughes
Derrick Huisenga
Rosario Huizar
Dylan Hutchcraft
Ronald Hutchcraft
Gary Hutchins
Tan Huynh
Joseph Ibeh
Okechukwu Ibeh
Alexander Ignatenkov
Samuel Ingram
Tim Ingram, Sr.
Michael Isham
Daniel Iya

Belinda Jackson
Jeff Jackson
Danny Jacot
Alma Jacquez
Jose Jamaica
Mckinley James
Alejandro Jaramillo
Rachael Jennings
Jason Jewell
Genelle Jimboy
Maria Jimenez
Vincent Jimenez
Pedro Jimenez-Delfin
Frederick Jimmerson
Christopher Johnson
Ed Johnson
Holly Johnson
Jamy Johnson
Lakendrick Johnson
Sylvia Johnson
Cheryl Jones
Danny Jones
David Jones
Dean Jones
Djuan Jones
Fedeldrick Jones
Henry Jones
Raymon Jones
Remia Jones
Rose Jones
Terry Jones
Timothy Jones
Danny Jones, Jr.
James Jones, Jr.
Rodney Jordan
Sean Jordan
Gregorio Juarez
Jaime Juarez
Samuel Jumelles 

Lopez

Leandro Jumelles 

Nunez
Brian Justice
Garrett Kaiser
Patrick Kaiser
Hau Kam
Dal Kap
Lian Kap
Ngin Kap
Thang Kap
Sung Kar
Brian Kastl
Eryn Kavanaugh
Tuang Kawi
Richard Keaton
Aaron Kelly
Jerry Kennard, Jr.
Gregg Kennedy
Antony Khai
Do Khai
En Khai
John Khai
Lang Khai
Mang Khai
Nang Khai

Pau Khai
Peter Khai
Thang H. Khai
Thang S. Khai
Go Kham
Mung Kham
Ngun Kham
Pavel Kharabora
Kirk Khillings
Khai Khual
Dai Khup
Kap Khup
Khan Khup
Ngin Khup
Thang Khup
Alan Kilgore
Andrew Kilgore
Cin K. Kim
Cin T. Kim
Cing Kim
Kap Kim
Thang Kim
Jimmy Kimbley
Cody King
Joseph King
Lori King
Randy King
Russell King
Roger Kinkade, Jr.
David Knebel
Robert Knuth
Scott Koscheski
James Koss
Edward Kracke, Ii
Robert Krafjack
Larry Kreps
Mikhail Krupenya
Karl Kuenemann
Laura Kyle
Carmelo Laboy Ramos
Mike Lafond
Giang Lai
Do Lal
George Lam
Mang Lam
Cole Lambert
Deborah Lane
Donald Laney
Pum Lang
Ugin Lang
Kap Langh
Martin Larsen
Michael Lavallee
Kevin Law
Bill Lawson
Jeffrey Lawson
Ronald Lawson
Anh Le
Lai Le
Michel Lebel
Jose Lebron
Gralind Lee
Jacqueline Lee
Rhonda Lee
Kevin Lee, Jr.

58

57

Matthew Leeper
Brandon Leger
Hugo Lerma
Boy Let
Cin Lian
Do Lian
Gin Lian
Hau Lian
Kam Lian
Sing Lian
Tha Lian
Thang Lian
Tuan Lian
Ping Lin
Jerry Lincoln
Thomas Lincoln
William Lindsay
Rene Livesey
John Livingston
Devin Lloyd
Jonathan Lockmiller
Samuel Lockridge
Michael Lollis
Linda Longoria
Arturo Lopez
Margarito Lopez
Rafael Lopez
Rebecca Lopez
Thomas Lopez
Carlos Lopez 
Rodriguez

Johnny Lopez, Jr.
Quin Love
Paul Lowery
Oscar Lozano
Jarrod Ludlow
Quannah Ludlow
Cing Lun
Mariana Luna
Jose Macias
Jorge Madrigal
Monica Magana
N Mai
Carlos Malone
Jeffrey Maly
Ciin Man
Cing Man
Maria Mancilla
Dal Mang
Gin Mang
Kam Mang
Kham Mang
Khup Mang
Lian Mang
Nang Mang
Ngin Mang
Suan Mang
Evelyn Manning
Adam Mansfield
Georgina Manzo De 

Barrera
Paul Mapes
William Markwardt
Ma Marquez De-

Gilbreath
Ana Marroquin

Fernando Marroquin
Eco Marshall
Jevon Marshall
Angel Martinez
Barbara Martinez
Francisco Martinez
Javier Martinez
Juan Martinez
Karen Martinez
Laura Martinez
Miguel Martinez
Kenneph Martinez 

Baez

Francisco Martinez 

Leon

Hector Martinez 

Molina

Gabriel Martinez 

Servin

Florentino Martin-

Romo

Timothy Marvin
Thomas Masengale, 

Jr.

Beverley Mason
James Mason
Artemus Matthews
John Mattingly
Charles Mattocks, Iv
Ron Mauch
Antonio Mauricio
Christopher Maxwell
Leonard Maxwell
Courtney Mcafee
Deborah Mcateer
Tina Mcbeath
Robert Mcbowman
Christopher Mcclain
Dirk Mcclellan
Roy Mcconnell
Corey Mccowan
Debra Mccowan
Wesley Mccowan, Jr.
Marc Mccuin
Michael Mccuin
Kathy Mcculloch
Loyd Mcdaniel
Randall Mcdaniel
Sharon Mcdaniel
Stacy Mcdonald
James Mcelroy
Deborah Mcfarlin
Joshua Mcgee
Charles Mcgraw
Mark Mcillwain
Kyle Mckelvey
Michael Mckenzie
Domingo Mcknight
Sean Mcniel
Gina Means
Brittaney Medders
Patricia Medina
J Medina Olvera
James Melda
Manuel Melendez 

Hernandez

Silvestre Mendez 

Gonzales

Vernon Merceal, Jr.
Kevin Merideth
Vivian Meyer
Ronald Mikel
Glenn Milam
D’marcus Miles
Michael Miles
Ranulfa Milian
Chris Miller
Jennifer Miller
Mykea Miller
Brian Mingle
Bruce Minton
Scarlett Miranda
Dallas Mitchell
Johnny Mize, Ii
Jay Modisette
Ronald Modlin
Irma Moguel
Tammy Mohaupt
Braulio Moises-Lee
Jose Molina
Natalie Montano
Enoc Montes
Nohemi Montes
Robert Montgomery
Clay Moo
Jon Moody
Herbert Moore
James Moore
Marc Moore
Maria Moore
Tony Moore
Alfonso Moran
Tony Morehead
Berta Moreno
Matthew Morgan
Myron Morgan
David Morgerson
Jaylon Morris
Shannon Morrison
Desron Morrow
Marcus Morrow
Phillip Moss, Jr.
Clayton Mote
Darrell Mote
Stephanie Mounce
Gary Mount
Eddie Moura, Jr.
Do Muang
Eric Mulliniks
Gin L. Mung
Gin S. Mung
Kai Mung
Kam Mung
Khai Mung
Lang Mung
Lian Mung
Pau Mung
Pum Mung
Suaan Mung
Suan G. Mung
Suan S. Mung
Thang Mung

Thawng Mung
Vum Mung
Vung Mung
Jesus Munoz
Eduardo Murillo-

Munoz

Johnny Musgrave
David Myers
Sing Nang
Marcus Naranjo
Vincent Nash
Go Naulak
Jose Nava
Maria Nava
Abel Navejas
Clayton Neal
Mark Neal
Samuel Neale
Natalie Neilson
Kathleen Nelson
Ronald Nelson
Ciin Neu
Robert Neu
Cing Ngaih
Duong Nguyen
Gam Nguyen
Hoang-Chi Nguyen
Phuoc Nguyen
Thanh Nguyen
Dim Niang
Leen Niang
Kenneth Nichols
Karen Niles-Blayer
David No
Hank Noeske
Jerry Nolan
Christopher Norfleet
Willie Norfleet
Robert Norfleet, Jr.
Richard Norgren
Eric Norris
Debra Nothnagel
John Nutt
Deangelo Oakley
Michael O’brien
Alexander Ofosu
Rickey Ogans
John Ogle
Ruben Olan Garcia
Maria Olivas De 

Torres
Scotty Oliver
Anthony Oliveras
Eric Olson
Sunday Omasere
James O’neill, Jr.
James O’neill, Sr.
Benjamin Orme
Leticia Orona
Margarita Orona
Glens Orona Moreno
Margarita Orozco 

Dehuizar

Carlos Orozco-Torres
David Osborne
Jennifer Overmeyer

Tommy Owens, Jr
Martin Ozura-Carrillo
Gerard Pacheco
Guillermo Pacheco
Mark Page
Edmundo Paiz
Michael Palmer
J Paniagua
Noemi Paniagua 

Belmonte
Larry Parker
Jason Pate
Jeanetta Pate
Joshua Pate
Justin Pate
Corry Patterson
Chin Pau
Cia Pau
Ciang Pau
Dal Pau
Gin D. Pau
Gin S. Pau
Kam L. Pau
Kam S. Pau
Liang Pau
Nang Pau
Thang Pau
Thang L. Pau
Thang T. Pau
Vaden Paulsen
Justin Paulson
Larry Pearson
Travis Pearson
Vladimir Peniaz
Jamal Pennington
Shamata Pentecost
Morris Peoples, Iii
Toni Perantie
Cesar Perez
Sergio Perez
Ma Lourdes Perez 

Perez

Maurice Perkins
Deray Perry
John Peters
Ladrue Peters
Heather Peterson
Daniel Peurifoy
Randy Phelps
Nicholas Phifer
Alexander Phillips
Brandon Phillips
Louis Phillips
Michael Phillips
Mang Pi
Thang Pi
Tuang Pi
Thang K. Piang
Thang L. Piang
Zam Piang
Pedro Pina-Valles
Jose Pineda
Fernando Pineda, Jr.
Clifford Pitchford
Susanne Poindexter
Basant Pokhrel

Renu Pokhrel
Mark Pool
Timothy Pool
Milton Porter
Richard Porter
Ardeshir Pouraryan
Mark Powell
Phillip Powell
Rudy Powell
Greg Powers
Jeffery Powers
Jose Prado
Lee Prince
Jason Provencher
Lian Pu
Alma Puga
Daniel Puga, Jr.
Javier Quezada
Jesus Quinones
Lucas Quintanilla
Cold Rain
Nimalakirthi 
Rajasinghe
Antonia Ramirez
Raymon Ramirez
William Ramirez
Nandy Ramirez B
Robert Ratliff
Kyle Ratzlaff
Terry Ratzloff
Robert Rayno
Curtis Rayon
Thomas Read
Sandra Reader
Joseph Reagh
Diego Rebollar
Diego A. Rebollar
Miguel Rebollar
Jose Recio-Gomes
Peggy Redden
James Reed
Freeman Reed, Jr.
Margaret Reeves
Alberto Rendon
Rodolfo Renteria
Svyatoslav Reshetov
Maria Reyes De Arroyo
Thomas Reynolds
Robert Riddell
Angela Rideout
Brett Riegel
Delmecio Riser
Stephen Riser
James Ritchie
Hillary Rite
Genoveva Rivera
John Roberts
Benton Robinson
Michael L. Robinson
Michael W. Robinson
Alex Rodriguez
Diana Rodriguez
Edgar Rodriguez
Felipe Rodriguez
Gilberto Rodriguez
Hector Rodriguez

Maria Rodriguez
Melvin Rodriguez
Rivelino Rodriguez
J Rodriguez-Flores
Don Rogers
Jake Rogers
Albert Rohde
Charles Roininen
Lidia Rojas
Nelson Rojas
Terry Rombach
Oscar Rose
Lane Ross
Shaunda Rowe
Richard Rowe, Jr.
Thomas Royal
Ricardo Ruiz
Vicente Ruiz
Ava Russell
Jimmy Russell
Kimberly Russell
Miguel Saez Sepulveda
Adan Salazar
Alberto Salazar
Nora Salazar
Walter Salazar
David Saldivar
Maria Saldivar
Miguel Saldivar
Victor Saldivar
Jose Saldivar Orepeza
Diana Salinas
Jessica Samaroo
Robert Sams
Beatriz Sanchez
Betty Sanchez
Tara Sanchez
Esperanza Sanchez 

Ruiz

Luis Sanchez-Lopez
Christina Sanders
Tanisha Sanders
Michael Sandor, Jr.
Jason Sanford
Cin Sang
Thang Sang
Thiam Sang
Zam Sang
Agustin Santana
Reinaldo Santana
Wenceslao Santiago
Harold Santiago Torres
Carlos Santiago Torrez
Ignacio Santillan
Pedro Santillan
David Sarant
Richard Satterfield
Erick Sawyer
William Scharosch
Bucklusio Schartz
Richard Schumpert
Brummett Scott
Dajuane Scott
Joseph Scott
Kenneth Scott
Vivian Scroggins

Marcus Seip
Carrol Shackelford
Jackie Sharpe
Ontario Shaw
Otis Shaw
Thomas Shaw
Thomas Shaw, Jr.
Douglas Sheehan
Kathy Sheffield
Brandon Shelton
Kathleen Shepard
Jackie Shephard
Lynnda Shepherd
Shane Shepherd
Barbara Shipman
Nelson Sierra
Oscar Sierra-
Matamoros
Cory Simmons
Daai Sing
Kap Sing
Thang Sing
Russell Singleton
Roy Sissons
Michael Skinner
Ian Slattery
Debi Sloan
Larry Slone
Raymond Slovacek
Brett Smith
Darrell Smith
Dustin Smith
Jeffrey Smith
Jordan Smith
Owen Smith
Renaldo Smith
Ricardo Smith
Ryan Smith
Sweetie Smith
Robert Smith, Ii
Wilbert Smith, Jr.
Jose Solares
Malcolm Soles
Mercedes Soles
Maria Solis
Nemisia Solis
Wiley Sorrels
Paula Sosa
Kevin Souvannasing
Denney Sowder
Ronnie Sparks
Elda Spears
Jameson Spires
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Jennifer Spratling
Richard Sprowles
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Lawana Stane
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Charles Stirens
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Billy Strength
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Mang Suan Pau
Nang Sum
Rosa Summers
Marcus Syas
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James Taber
Go Tang
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Joe Tart
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Mark Tate
Tenna Tatum
Mung Tawng
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Deborah Taylor
Eric Taylor
Thomas Taylor
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Kevin Teakell
Robert Teis
Cin K. Thang
Cin L. Thang
Cin Lian Thang
Dal Thang
Go Thang
Kam Thang
Kham Thang
Mang Thang
Pau S. Thang
Pau Z. Thang
Suan Thang
Tual Thang
Tuan L. Thang
Tuan S. Thang
Lian Thang Lam
John Thang Pi
Cin Thawng
Lang Thawng
Zam Thawng
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Gerald Thomas
Lee Thomas
Cheryl Thomason
Shaun Thompson
Tuan Thung
Ted Tiger
Dustin Tiner
Gabriela Tirado
William Tobar
Christopher Toles
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Reinaldo Torres
Jose Torres Gonzalez
Heip Tran
Hieu Tran
Tuong Tran
Marisol Trejo
Martin Trevino-Saldana
Mark Tribble
Ha Trinh
Juanito Tronzon
Juan Trujillo
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Kham Tuang

Suum Tuang
Thang L. Tuang
Thang L. Tuang
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Gin Tung
Kaam Tung
Thawng Tung
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Demeco Turner
Richard Twilling
Phyllis Tyiska
James Tyler
Jesus Tzul
Pernell Underwood
Tony Urich
Maria Urquiza
Yadira Urquiza
Allen Vang
Christopher Vang
Pleng Vang
Sua Vang
John Vanness
Joel Vanscoy, Jr.
Cergio Vargas
Jose Vargas
Chris Vasquez
Shawn Vawter
Juan Vazquez
Jose Vega
Antonio Velasco
Salomon Velasquez
James Velde
Juan Vences
Angel Venegas
Salome Vera
Laura Vergara
James Verhamme
George Verrett
Teresa Victory
Efrain S. Villa
Efrain Sanchez Villa
Selina Viramontes
Cuong Vo
Suong Vo
Tong Vo
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Lian Vum
Ning Vung
Stephen Wakefield
Diana Walker
Joshua Walker
Roderick Walker
Gene Walker, Jr.
Mark Walkup
Barry Wall
Leslie Wallis, Jr.
Stacey Walters
William Wamsley
Gayle Ward
Phillip Ward
Billy Warden, Ii
Perry Warner
Vielka Washington
Steven Watkins
Demetria Webb

George Webb
Kyle Webb
Anthony Welch
John Wells
Kyle Wells
Jimmy West
Sharon West
Deborah Whitaker
Harvey Whitaker
Allyn White
Brian White
Joseph White
Sean White
Timothy White
David Whitlock
Steven Whorton
Christopher Wiles
Jackie Wiles
Jerry Wiles
Sherri Wilkins
Duane Wilkinson
James Wilkinson
Barbara Williams
Chante Williams
Cheray Williams
Donna Williams
Robert Williams
Vandoil Williams
James Williamson
Jeremy Williamson
Jarvoris Willis
Brandi Wilson
Charles Wilson
Daniel Wilson
Isaac Wilson
James Wilson
Richard Wilson
Roderick Wilson, Sr.
Thomas Wingo
Wanda Winkfield
Whitney Winn
Micah Wisdom
Edward Wofford
John Wold
Justin Wolf
James Wolfe, Iv
Curtis Wood
Ronald Wood
Jim Wyrick
Linda Wyrick
Ector Yancey, Jr.
Jack Yang
Morgan Yeubanks
Kathryn Young
Keith Young
Patricia Young
Josh Youngs
Nikolay Zagorodniy
Lang Zah Lang
Jorge Zaragoza
Derrick Zarnt
Aurora Zavaleta
Luis Zepeda
Juan Zermeno
Virginia Zermeno

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2425 South Yukon Avenue • Tulsa, OK 74107
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203 Gum Springs Road • Longview, TX 75602
903.236.4403 • Fax: 903.236.4463

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