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AAON

aaon · NASDAQ Industrials
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Industry Construction
Employees 1001-5000
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FY2012 Annual Report · AAON
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2012 AnnuAl RepoRt

Reaching New HeightsA n n uAl   R e p oR t

2012Reaching New Heights
With a dedication to constant improvement and innovation 
our company achieved another milestone year. Net sales in 
2012 soared over $300 million. By continuing to invest in 
our capabilities we are committed to capitalizing on future 
opportunities and ascending even higher.

A n n uAl   R e p oR t

2012CoMpAny proFile

rooFtop UnitS

oUtdoor Air  
HAndling UnitS

CondenSing 
UnitS

rl SerieS

rn SerieS

rQ SerieS

pACkAged oUtdoor MeCHAniCAl rooMS

SelF ContAined 
UnitS

rl SerieS

Cl SerieS

Bl SerieS
Boiler

ll SerieS
Air-Cooled CHiller

SA SerieS

rn SerieS

CC SerieS

lC SerieS 
Air-Cooled CHiller

ll SerieS 
eVAporAtiVe-Cooled CHiller

SB SerieS

rQ SerieS

CB SerieS

indoor Air HAndling UnitS

F1 SerieS

H3 SerieS

V3 SerieS

SA SerieS

M2 SerieS

M3 SerieS

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

consisting  of  standard,  semi-custom  and  custom  rooftop  units,  chillers,  packaged  mechanical  rooms,  air  handling  units, 

makeup  air  units,  energy  recovery  units,  condensing  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.

FinAnCiAl HigHligHtS

2012

2011

2010

2009

2008

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 Equivalents

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 June 2011 
2 = Cash, cash equivalents + receivables/current liabilities.

 $  303,114 

 $  266,220 

 $  244,552 

 $  245,282 

 $  279,725 

 $  70,499 

 $  44,234 

 $  44 

 $  86 

 $  13,407 

 $  44,317 

 $  27,449 

 $  46,281 

 $  22,169 

 $  277 

 $  98 

 $  11,397 

 $  21,513 

 $  13,986 

 $  55,188 

 $  32,715 

 $  45 

 $  258 

 $  9,886 

 $  32,693 

 $  21,894 

 $  67,545 

 $  43,754 

 $  9 

 $  71 

 $  9,061 

 $  43,892 

 $  27,721 

 $  67,176 

 $  43,388 

 $  71 

 $  27 

 $  9,412 

 $  44,068 

 $  28,589 

 $  1.12 

 $  1.11 

 $0.57 

 $0.56 

 $0.87 

 $0.87 

 $  1.07 

 $  1.07 

 $  1.09 

 $  1.07 

 $  51,921 

 $  45,700 

 $  55,502 

 $  65,354 

 $  40,600 

 $  91,546 

 $  90,695 

 $  96,929 

 $  3,159 

 $  84,387 

 $  93,502 

 $  85,935 

 $  13 

 $  91,748 

 $  67,418 

 $  86,307 

 $  2,393 

 $  96,240 

 $  59,896 

 $  80,567 

 $  25,639 

 $  80,118 

 $  60,550 

 $  72,269 

 $  269 

 $  193,493 

 $  178,981 

 $  160,277 

 $  156,211 

 $  140,743 

 $  39,625 

 $  38,687 

 $  36,246 

 $  30,886 

 $  39,518 

-

-

-

 - 

 $  121 

 $  138,136 

 $  122,504 

 $  116,739 

 $  117,999 

 $  96,522 

 $  5.59 

 $  4.92 

 $  4.61 

 $  4.54 

 $  3.60 

 $  51,167 

 $  26,484 

 $  32,152 

 $  45,205 

 $  33,447 

 $  (30,335)

 $  (24,538)

 $  (28,276)

 $  (9,639)

 $  (9,593)

 $  (17,686)

 $  (4,326)

 $  (27,200)

 $  (10,101)

 $  (24,460)

 $  3,146 

 $  (2,380)

 $  (23,246)

 $  25,370 

 $  (610)

21.1%

14.2%

14.6%

9.1%

0.4 

1.4 

2.3 

19 

11.7%

7.8%

8.1%

5.3%

0.5 

1.1 

2.2 

37 

18.7%

13.7%

13.4%

9.0%

0.4 

1.2 

2.5 

22 

25.8%

17.7%

17.9%

11.3%

0.3 

1.9 

3.1 

12 

29.8%

20.3%

15.8%

10.2%

0.5 

1.0 

2.0 

13 

2012AnnuAl RepoRt 
preSident’S letter

Dear ShareholDer,We are exceedingly pleased to report our sales climbed 13.9% in the past year, surpassing the $300 million mark for the first time in the Company’s 24-year history. This milestone was achieved despite an economy which exhibited sub par growth for most of the year. Consequently, construction activity was uneven with modest increases in the commercial (private) sector, while spending in the institutional (public) segment was slightly negative.“sales climbed 

13.9% in the past 

year, surpassing 

the $300 million 

mark for the 

first time in  

the company’s  
24-year history.” 

Our  sales  performance  was  influenced  by  a  number  of  factors  which  include 

the  continuing  gain  in  our  share  of  the  market  as  we  witnessed  growing 

acceptance of our technologically innovative product line. Furthermore, the Tax 

Relief, Unemployment Insurance Reauthorization and Job Creation Act signed 

into  law  in  December  2010,  allowing  100%  depreciation  for  qualified  capital 

expenditures put in service in calendar 2011, was extended into 2012 but at a 

rate of 50%. This extension had a beneficial impact on our replacement business 

which contributed more than 55% of our total sales. In addition, we continued to 

improve and expand our sales force through increased training, the addition of 

personnel and replacement of underperforming offices.

Sales for the year ended December 31, 2012, reached $303.1 million as compared 

with $266.2 million in 2011. Gross profit climbed to $70.5 million (23.3% of sales) 

from  $46.3  million  (17.4%  of  sales),  or  a  gain  of  52.3%.  It  should  be  noted  that 

the gross profit performance in 2011 was negatively impacted by a number of 

factors, many non-recurring in nature. Nonetheless, our improved gross margins 

this  past  year  reflect  not  only  our  increase  in  sales  but  also  our  significantly 

improved manufacturing productivity discussed later in this 

letter.

SG&A  expenses,  including  substantially  higher “profit  sharing” 

costs,  climbed  17.7%  to  $26.3  million  (8.7%  of  sales)  from  $22.3  million 

(8.4%  of  sales).  Operating  income  benefiting  from  both  the  higher  sales  and 

improved operating efficiencies surged 100.0% to $44.2 million (14.6% of sales) 

from $22.2 million (8.3% of sales). Included in the 2011 operating income was 

a $1.8 million loss on the sale of equipment. Pre-tax income gained 106.0% 

from $21.5 million (8.1% of sales) to $44.3 million (14.6% of sales). Our 2011 

pre-tax  income  was  negatively  impacted  by  the  payment  of  a  $500,000 

insurance deductible due to the storm damages caused by February 2011 snow 

storms in Tulsa, as well as other charges previously reported. Net income in 2012 

increased to $27.4 million (9.1% of sales) or $1.11 per share from $14.0 million 

(5.3% of sales) or $0.56 per share in 2011. The 2012 tax rate was 38.0% versus 35.0% 

a year ago. Our per share calculations are based upon 24.7 million fully diluted 

shares outstanding in 2012 and 24.9 million fully diluted shares in 2011.

2012AnnuAl RepoRtStrong FinAnCiAl Condition

The remainder of our expenditures was directed toward 

Our  financial  condition  at  December  31,  2012,  was  

additional plant expansion and machinery. The capacity 

quite  strong.  Cash  and  investments  totaled  $19.3  mil-

of our Tulsa and Longview, Texas, plants has increased to 

lion  (including  $16.1  million  of  short-term  certificates 

$800 million of annual production, while our machinery 

of  deposit  and  corporate  bonds,  all  maturing  within 

capacity  can  accommodate  approximately  $500-$600 

two years). Total current assets were $91.5 million with 

million of sales.

a  current  ratio  of  2.3:1.  Our  capital  expenditures  in 

2012 were $14.1 million and we paid dividends of $8.9 

million  (including  a  special  $0.12  per  share  dividend 

paid  in  December  2012  amounting  to  $3.0  million). 

Once  again,  we  operated  with  no  long-term  debt. 

Total  shareholders’  equity  increased  to  $138.1  million 

or $5.59 per diluted share from $122.5 million or $4.92 

For 2013, we have budgeted capital expenditures in the 

vicinity  of  $9-10  million.  We  anticipate  approximately 

20% of these expenditures will be directed toward plant 

expansion and renovation with the remainder going to 

additional machinery.

per  diluted  share  a  year  ago.  Our  return  on  average 

A MASter diStriBUtor

shareholders’ equity was 21.1%.

CApitAl expenditUreS

During  the  past  year  we  began  to  reap  the  benefits  of 

our aggressive capital expenditure program undertaken 

in 2011 which totaled $35.9 million. In the 2011 letter to 

shareholders, we discussed the relocation and expansion 

of  three  assembly  lines  and  the  rearrangement  of 

two  others  in  anticipation  of  growing  demand  in  our 

2-6  ton,  16-30  ton  and  26-70  ton  product  lines,  which 

contributed  approximately  65%  of  the  Company’s  total 

volume. In addition, we replaced 50% of our sheet metal 

fabricating  equipment  with  more  reliable  and  efficient 

machinery,  thus  improving  the  overall  efficiency  of 

our  manufacturing  process.  We  witnessed  significant 

productivity  improvement  in  2012  derived  from  the 

enlarged  assembly  lines  and  the  installation  of  new 

Our new 200,000 square foot warehouse was completed 

at  the  end  of  2012.  This  new  facility  will  house 

production and replacement parts and a wide variety of 

products, all of which will be sold to our manufacturer’s 

representatives for resale to their customers.

The  replacement  parts  inventory  will  be  made  up  of 

coils  manufactured  at  our  Longview  facility,  as  well  as 

component parts such as compressors, motors, fans and 

electrical  items  which  will  be  purchased  from  various 

manufacturers.

By  taking  this  “supermarket”  approach,  the  Company 

can  take  advantage  of  wholesale  pricing  available  to 

large  purchasers  while  offering  its  representatives  a 

wide selection of parts and quick delivery (24-48 hours) 

to accommodate their customers.

equipment. We  believe  that  further  gains  will  continue 

Our  replacement  parts  business  contributed  approx-

throughout this year.

Our capital expenditures in 2012 were $14.1 million. We 

completed  the  construction  of  a  200,000  square  foot 

warehouse  and  office  building  at  a  cost  of  $4.0  million 

(bringing the total cost of this building to $11.0 million). 

imately  $12  million  of  sales  in  2012  and  we  expect 

this  segment  to  experience  excellent  growth  over 

the  intermediate  and  longer  term  as  more  of  our 

representatives  seek  to  augment  their  sales  via  this 

incremental business.

reCognitionS

In  July,  AAON’s  SB  Series  water-source/geothermal  heat  pump  system  was 

recognized  for  excellence  in  product  design  as  a  Gold  Award  Winner  in  the 

“our 

HVAC Light Commercial Equipment category sponsored by the Air Conditioning 

Heating  and  Refrigeration  News  Magazine  (ACHR  News)  in  their  Dealer  Design 

Awards  Program.  An  independent  panel  of  29  contractors  acted  as  judges  in 

the contest that had 81 entries. The ACHR News is distributed nationally to over 

replacement 

parts business 

33,000 HVAC/R contractors, wholesalers and other industry professionals.

In  September,  the  Company  announced  that  its  RN  Series  packaged  rooftops 

unit  (55-140  tons)  had  been  named  a  2012  Product  of  the Year  winner  in  the 

HVAC/R category by Consulting-Specifying Engineer magazine. The RN series won 

the bronze award for its efficiency and energy savings at full and partial loads. 

Consulting-Specifying Engineer is a monthly publication with a circulation of over 

46,000 mechanical, electrical and plumbing (MEP) engineers.

indUStry oUtlook

contributed 

approximately 

$12 million of 

sales in 2012 

and we expect 

This  past  February,  a  news  article  appeared  in  the  HVAC&R Industry Newsletter 

that  sighted  a  recent  study  published  by  the  American  Institute  of  Architects 

this segment 

(AIA) forecasting healthy gains this year in nonresidential construction activity. 

AIA projects construction spending for this type of buildings rising by 5% in 2013 

and 7.2% in 2014. The construction of commercial facilities is expected to lead 

the upturn, with spending gains of almost 9% this year and nearly 11% next year. 

Industrial  (factories)  construction  spending  is  projected  to  increase  modestly, 

while  institutional  construction  activity  should  lag  behind.  AIA  expects  the 

healthcare industry to be the strongest institutional sector.

to experience 

excellent 

growth 

over the 

At  the  date  of  this  letter,  we  had  not  yet  completed  our  first  quarter  of  2013. 

Through the first two months of this year, our incoming order rate remained firm 

intermediate 

and a polling of our manufacturer’s representatives suggests a continuation of 

this trend over the near and intermediate terms. While we are pleased by the 

upbeat tone of the AIA’s recent findings, we remain mindful of the fact that this 

survey is just an indicator of the outlook for future nonresidential construction 

activity.  An  increase  in  the  index  may  foretell  the  mood  for  new  construction 

projects and HVAC sales over the intermediate and longer terms. However, ar-

chitectural work does not always translate into new construction or HVAC sales.

and longer 
term” 

2012AnnuAl RepoRt“we have been 

and will remain 

committed to 

expend the 

necessary capital 

and manpower to 

produce the most 

technologically 

advanced, energy 

efficient products 
in the industry.” 

We have begun to see some strengthening in raw material and component 

costs. If this trend continues there is little doubt that we will incur some 

near term margin restriction, since there is a lag period between increases 

in our cost of sales and our reaction time to implement pricing increases.

SAleS repreSentAtiVe perForMAnCe

Once again we want to commend our manufacturer’s representatives who 

enabled the Company to post a significant gain in sales to all-time record 

levels this last year. The sales representative network is made up of 93 reps 

which operate 108 offices (some reps have multiple offices) in all 50 states 

and Canada. This network contributed over 95% of our total sales in 2012.

AAON  encountered  good  growth  in  end  markets  such  as  education, 

healthcare,  government,  the  military,  and  retailing,  while  the  lethargic 

atmosphere surrounding the commercial and industrial sectors continued 

throughout  the  year.  Our  replacement  business  showed  good  growth 

aided  by  the  continuation  of  the  Tax  Relief,  Unemployment  Insurance 

Reauthorization  and  Job  Creation  Act  of  2010,  as  well  as  the  excellent 

response  to  a  number  of  our  newly  revised,  innovative  energy  efficient 

products  which  create  significant  cost  savings  for  our  customers.  The 

new  construction  segment,  which  constitutes  the  remainder  of  sales, 

was understandably impacted by the continuing slowdown in economic 

activity.  In  2011  we  enhanced  our  extensive  training  program  for  our 

representatives  so  they  could  better  communicate  the  features  and 

benefits  of  AAON  products. The  results  were  excellent. We  took  further 

steps to improve and enlarge the representatives’ force by replacing some 

underperforming  offices  and  encouraging  the  addition  of  personnel 

in  other  offices.  We  anticipate  continuing  growth  in  our  market  share 

through  the  greater  acceptance  of  our  product  lines.  We  believe  our 

manufacturer’s representatives will continue to play a most important role 

in AAON’s future growth.

oUr eMployeeS

We  strive  to  retain  and  motivate  employees  in  a  manner  consistent 

with shareholder interests.  An initial step in this process is to share the 

profitability  of  the  company.  Over  the  years  we  have  distributed  10%  of 

pre-tax  profits  equally  to  all  personnel.  As  of  January 

We  view  our  employees  as  a  long-term  investment 

1,  2012,  we  changed  this  incentive  to  be  calculated 

in  skills,  talent  and  knowledge.  We  believe  that  our 

on  a  consolidated  basis  (vs.  separate  subsidiaries)  and 

approach  to  personnel  matters  increases  shareholder 

added the requirement that personnel remain with the 

value  by  creating  an  ownership  perspective  while 

company an additional two and one-half months.

helping employees meet their personal financial, health 

To  encourage  a  longer-term  focus,  employees  own 

nearly  4%  of  the  company’s  outstanding  stock  through 

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

along with other shareholders, from share appreciation. 

Employees  (as  a  group),  through  the  401(k)  plan,  are 

the  fourth  largest  shareholder  of  AAON.  In  2012,  we 

contributed  1.5%  of  each  employee's  pre-tax  earnings 

to the 401(k) plan, along with a matching contribution, 

to  ensure  some  level  of  retirement  preparation  and 

corporate  ownership.  All  company  contributions  are 

used to purchase AAON stock on the open market, while 

no employee contributions are allowed to be invested in 

company  stock.  Shares  of  AAON  stock  are  later  sold  to 

and development goals.

oUtlook

Our record sales and strong earnings gains in 2012 were 

undoubtedly  the  result  of  a  number  of  factors,  not  the 

least of which was the extraordinary effort put forth by 

all of our employees and manufacturer’s representatives. 

We have been and will remain committed to expend the 

necessary  capital  and  manpower  to  produce  the  most 

technologically  advanced,  energy  efficient  products  in 

the industry. Our strong financial condition and free cash 

flow will enable us to continue to pursue a solid growth 

policy and remain debt free.

the  company  if  participants  diversify  their  holdings,  as 

There are many challenges before us and new heights to 

they are permitted to do immediately, or leave the plan. 

be scaled. We believe we can achieve our goals of further 

The 401(k) plan encourages employee longevity through 

sales and earnings gains, aided by the continuing support 

a six-year benefit vesting structure and provides for the 

of our customers, sales representatives and shareholders, 

redistribution of participant forfeitures.

as well as the commitment of our employees, all of whose 

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

health plan, along with contributions to health savings 

accounts,  wellness  incentives  and  on-site  clinics  that 

are  focused  on  preventative  care.  We  believe  that 

direct  control  over  their  healthcare  dollars  has  made 

our  employees  more  conscious  of  their  health  and 

medical  costs.  Following  a  U.S.  Supreme  Court  ruling, 

we  have  focused  on  ensuring  that  our  plan  meets  the 

requirements  of  the  health  reform  regulations  in  the 

most cost effective manner possible.

names appear at the end of this report.

Sincerely,

Norman H. Asbjornson
President & CEO
March 29, 2013

2012AnnuAl RepoRtSpring
AAON purchased, renovated and 
moved into a 184,000 square foot 
plant in Tulsa, Oklahoma.

September
Purchase of John Zink Air 
Conditioning Division.

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

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

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

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

September

Completed expansion of the 

Tulsa facility to 332,000 

square feet.

November

AAON yearly shipments exceed $100 

million. Received U.S. patent for 

Dimpled Heat Exchanger Tube.

April

AAON received U.S. patent for 

Blower Housing assembly.

Fall

Expanded rooftop product line to 

230 tons Introduced evaporative 

condensing energy savings feature.

October

AAON listed in Forbes’ 200 

Best Small Companies

1987 

1988 

August 
AAON, an Okalhoma 
Corporation was founded.

1989 

1990 

1991 

1992 

1993 

1994 

1995 

1996 

1997 

1998 

1999 

2000 

2001 

2002

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

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

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

November
Listed on the NASDAQ 
National Market System.

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

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

October
AAON listed in Forbes’ 200 
Best Small Companies.

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

September
AAON received U.S. 
Patent for DPAC.

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

December
AAON rings closing  
bell at NASDAQ

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

August
3-for-2 stock split

2002 

2003 

2004 

2005 

2006 

2007 

2008 

2009 

2010 

2011 

October
AAON, listed in Forbes 
Magazine’s “Hot Shots 200 Up & 
Comers.” AAON listed in Forbes’ 
200 Best Small Companies.

April
AAON received U.S. Patent for 
the De-Superheater for 
Evaporative Air Conditioning.

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

October
AAON Listed in Forbes’ 200 
Best Small Companies’

October

AAON rings opening 

bell at NASDAQ

July

AAON products receive 

Dealer Design Awards

from ACHR News.

July

AAON RQ Series Rooftop 

Unit wins ACHR News 

Dealer Design Award.

June
3-for-2 stock split.

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

November
Introduction of light commercial/
residential product lines.

March
Modular air handler product 
extended to 50,000 cfm.

AAON voted “Most Valuble 

Product” and “Product of the 

Year” by Consulting-Specifying

Engineer Magazine

AAON listed in Forbes’ 200 

Best Small Companies

October

AAON listed in Forbes’

200 Best Small Companies.

November

AAON donates high efficiency 

equipment to ABC’s Extreme

Makeover: Home Edition 

July

Geothermal RQ Series wins 

Silver in ACHR News Dealer 

Design Competition

Single Zone VAV rooftop units 

win Honorable Mention in 

ACHR News Dealer Design 

Competition.

2012 

October

Consulting-Specifying 

Engineer magazine awards 

Geothermal RQ Series 

Product of the Year - Silver

2013

December

AAON yearly 

shipments exceed 

$300 million

July

AAON SB Series Self Contained 

Unit wins ACHR News Dealer 

Design Award - Gold

December

Purchased 40 acres with 457,000 

square foot plant and 22,000 square 

foot office space located across from 

Tulsa facility.

October

U.S. patent granted to AAON 

for air conditioner with 

energy recovery heat wheel.

June

 AAON named to the Fortune 

40: Best Stocks to Retire On.

National Society of Professional 

Engineers Award AAON 2009 

Product of the Year.

October

RN series rooftop unit names 

2010 Product of the Year - Silver 

by Consulting-Specifying 

Engineer Magazine

LC series chiller product named 

2010 Product of the Year - Bronze 

by Consulting-Specifying 

Engineer Magazine

AAON listed in Forbes’ 200

Best Small Companies.

July

AAON added as a member 

of the Russell 2000® Index.

Spring

Completed Tulsa, Oklahoma, and 

Longview, Texas, plant additions yielding 

a total exceeding one million square feet.

September

3-for-2 stock split.

Spring

Industry introduction of light 

commercial geothermal heat pump 

self contained unit product line.

June

National Society of Professional 

Engineers awards RQ Series High 

Efficiency Rooftop Unit "Product 

of the Year."

August

AAON added to Standard & 

Poor’s SmallCap 600 Index.

May

AAON increases dividend 

payment by 13%.

3-for-2 stock split

January

Outdoor mechanical room 

extended to 540 tons of capacity

September

Consulting-Specifying 

Engineer magazine awards RN 

Series E Cabinet Product of the 

Year - Bronze

Spring

AAON purchased, renovated and 

moved into a 184,000 square foot 

plant in Tulsa, Oklahoma.

September

Purchase of John Zink Air 

Conditioning Division.

Introduced a new product line 

of rooftop heating and air 

conditioning units 2-140 tons.

1987 

1988 

August 

AAON, an Okalhoma 

Corporation was founded.

A tiMeline oF SUCCeSS

September

One-for-four reverse stock 

split. Retired $1,927,000 of 

subordinated debt.

December

Formed AAON Coil Products, 

a Texas Corporation, as a 

subsidiary to AAON, Inc. 

(Nevada) and purchased coil 

making assets of Coils Plus.

March

Purchase of property with 26,000 

square foot building adjacent to AAON 

Coil Products plant in Longview, Texas. 

Issued a 10% stock dividend.

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

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

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

Fall
Expanded rooftop product line to 
230 tons Introduced evaporative 
condensing energy savings feature.

October
AAON listed in Forbes’ 200 
Best Small Companies

1989 

1990 

1991 

1992 

1993 

1994 

1995 

1996 

1997 

1998 

1999 

2000 

2001 

2002

December 

Listed on NASDAQ Small 

Cap - Symbol “AAON.”

Spring

AAON Coil Products purchased, 

renovated and moved into a 

110,000 square foot plant in 

Longview, Texas.

November

Listed on the NASDAQ 

National Market System.

January

Introduced a desiccant heat 

recovery wheel option available  

on all AAON rooftop units.

Summer 

Became a publicly traded company 

with the reverse acquisition of 

Diamond Head Resources (now 

“AAON, Inc.”), a Nevada corporation.

April 

AAON introduces factory engineered 

and assembled packaged mechanical 

room, which includes a boiler and all 

piping and pumping accessories.

Fall

Industry introduction of the 

modular air handler and 

chiller products.

October

AAON listed in Forbes’ 200 

Best Small Companies.

May

Purchase of the assets of 

Air Wise, of Mississauga, 

Ontario, Canada.

September

AAON received U.S. 

Patent for DPAC.

December

AAON rings closing  

bell at NASDAQ

June

Initiation of a semi-annual 

cash dividend for AAON 

shareholders.

August

3-for-2 stock split

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

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

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

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

September
3-for-2 stock split.

June
 AAON named to the Fortune 
40: Best Stocks to Retire On.

National Society of Professional 
Engineers Award AAON 2009 
Product of the Year.

August
AAON added to Standard & 
Poor’s SmallCap 600 Index.

May
AAON increases dividend 
payment by 13%.

October
RN series rooftop unit names 
2010 Product of the Year - Silver 
by Consulting-Specifying 
Engineer Magazine

LC series chiller product named 
2010 Product of the Year - Bronze 
by Consulting-Specifying 
Engineer Magazine

June
National Society of Professional 
Engineers awards RQ Series High 
Efficiency Rooftop Unit "Product 
of the Year."

3-for-2 stock split

AAON listed in Forbes’ 200
Best Small Companies.

January
Outdoor mechanical room 
extended to 540 tons of capacity

Spring
Industry introduction of light 
commercial geothermal heat pump 
self contained unit product line.

September
Consulting-Specifying 
Engineer magazine awards RN 
Series E Cabinet Product of the 
Year - Bronze

2002 

2003 

2004 

2005 

2006 

2007 

2008 

2009 

2010 

2011 

April

AAON received U.S. Patent for 

the De-Superheater for 

Evaporative Air Conditioning.

August

AAON received U.S. Patent 

for Plenum Fan Banding.

October

AAON Listed in Forbes’ 200 

Best Small Companies’

October
AAON rings opening 
bell at NASDAQ

July
AAON products receive 
Dealer Design Awards
from ACHR News.

July
AAON RQ Series Rooftop 
Unit wins ACHR News 
Dealer Design Award.

2012 

October
Consulting-Specifying 
Engineer magazine awards 
Geothermal RQ Series 
Product of the Year - Silver

2013

December
AAON yearly 
shipments exceed 
$300 million

AAON voted “Most Valuble 
Product” and “Product of the 
Year” by Consulting-Specifying
Engineer Magazine

AAON listed in Forbes’ 200 
Best Small Companies

October
AAON listed in Forbes’
200 Best Small Companies.

November
AAON donates high efficiency 
equipment to ABC’s Extreme
Makeover: Home Edition 

July
AAON SB Series Self Contained 
Unit wins ACHR News Dealer 
Design Award - Gold

July
Geothermal RQ Series wins 
Silver in ACHR News Dealer 
Design Competition

Single Zone VAV rooftop units 
win Honorable Mention in 
ACHR News Dealer Design 
Competition.

October

AAON, listed in Forbes 

Magazine’s “Hot Shots 200 Up & 

Comers.” AAON listed in Forbes’ 

200 Best Small Companies.

June

3-for-2 stock split.

July

Started production of polyurethane foam-filled 

double-wall construction panels for rooftop 

and chiller products using newly purchased 

manufacturing equipment.

November

Introduction of light commercial/

residential product lines.

March

Modular air handler product 

extended to 50,000 cfm.

2012AnnuAl RepoRtUNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

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

For the fiscal year ended December 31, 2012

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(b) of the Act: None
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        [P ]  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        [ P ]  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.
[ P ]  Yes       [   ]  No

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).                                
[ P ]  Yes        [   ]  No      
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will 
not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part 
III of this Form 10-K or any amendment to this Form 10-K. 

[   ]

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). 

Large accelerated filer 
Non-accelerated filer 

Accelerated filer     [ P ]
Smaller reporting company 

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

[   ]  Yes        [ P ]  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, 2012 was $346.1 million.

As of February 28, 2013, registrant had outstanding a total of 24,497,978 shares of its $.004 par value Common Stock.

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

DOCUMENTS INCORPORATED BY REFERENCE

May 21, 2013, are incorporated into Part III.

 
 
 
 
 
 
 
 
           
 
 
tABle oF ContentS

iteM nUMBer And CAption 

pAge nUMBer

pArt i

1.  Business  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1A. Risk Factors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1B.  Unresolved Staff Comments   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.  Properties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.  Legal Proceedings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.  Mine Safety Disclosure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

pArt ii

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

Matters and Issuer Purchases of Equity Securities  . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.  Selected Financial Data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.  Management’s Discussion and Analysis of Financial Condition  

and Results of Operations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7A. Quantitative and Qualitative Disclosures About Market Risk  . . . . . . . . . . . . . . . 14

8.  Financial Statements and Supplementary Data.  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9.  Changes in and Disagreements with Accountants on 

Accounting and Financial Disclosure   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9A. Controls and Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9B.  Other Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

pArt iii

10.  Directors, Executive Officers and Corporate Governance   . . . . . . . . . . . . . . . . . . 17

11.  Executive Compensation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

12.  Security Ownership of Certain Beneficial Owners and  

Management and Related Stockholder Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

13.  Certain Relationships and Related Transactions, and  

Director Independence   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

14.  Principal Accountant Fees and Services  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

pArt iV

15.  Exhibits and Financial Statement Schedules   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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”, “should”, “will”, 
and  variations  of  such  words  and  similar  expressions  are  intended  to  identify  such  forward-looking  statements. These 
statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions, which are 
difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in 
such forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, 
which speak only as of the date on which they are made. 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.

pArt i
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-condition-
ing  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 2012.

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. 
Currently, slightly over half of the industry's market consists of 
replacement units.

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 2012 level of sales of $303.1 million, we estimate 
that we have approximately a 14% share of the rooftop market 
and  a  1-3%  share  of  other  markets.  Approximately  55%  of  our 
sales  were  generated  from  the  sale  to  the  renovation  and 
replacement  markets  and  45%  from  new  construction.  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  self-contained  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. The RQ Series consisting 
of six cooling sizes ranging from one to six tons; the RN Series 
offered in 18 cooling sizes ranging from six to 70 tons, and an 
expansion  of  the  RN  series  introduced  in  2012  that  increased 
the  cooling  range  up  to  140  tons  and  the  number  of  cooling 
sizes from 18 to 26.  The RL Series, which is offered in 15 cooling 
sizes ranging from 40 to 230 tons; and the 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 also offer the SA and SB models as an 
indoor  package  water  cooled  units  with  cooling  capacities  of  
3 to 70 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  covering  a  range  of  
3 to 540 tons.

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 

Our air-handling units consist of the F1 and H3/V3 Series and 
the  modular  (M2  and  M3)  Series  as  well  as  air  handling  unit 
versions of the RN, RL and SA units.  

1

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  1½  to  540  tons  and  in  heating  capacity  from  
69,000  -  9,000,000  BTU's.  All  of  our  products  meet  the 
Department of Energy's (“DOE”) minimum efficiency standards, 
which  define  the  maximum  amount  of  energy  to  be  used  in 
producing  a  given  amount  of  cooling.  Many  of  our  units  far 
exceed these minimum standards and are among the highest 
efficiency units currently available. 

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.

mAjoR cuStomeRS
No customer accounted for 10% of our sales during 2012, 2011 
or 2010.

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. 

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  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).  Our warranty policy for the RQ series 
covers parts for two years from date of unit shipment and labor 
for one year from date of unit shipment.

ReSeARch AnD Development
Our  products  are  engineered  for  performance,  flexibility  and 
serviceability.  This  has  become  a  critical  factor  in  competing 
in  the  heating,  ventilation  and  air  conditioning  (“HVAC”) 
equipment  industry.  We  must  continually  develop  new  and 
improved products in order to compete effectively and to meet 
evolving regulatory standards in all of our major product lines.

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  $3.6  million,  $4.8 
million, and $3.6 million in 2012, 2011 and 2010, respectively.

BAckloG
Our  current  backlog  as  of  March  1,  2013  was  approximately 
$51.1  million  compared  to  approximately  $55.3  million  as 
of  March  1,  2012.  The  current  backlog  consists  of  orders  
considered by management to be firm and generally are filled 
on  average  within  approximately  60  days  to  92  days  after 
an  order  is  deemed  to  become  firm;  however,  the  orders  are 
subject to cancellation by the customers. 

DIStRIButIon
individuals  and  utilize 
We  employ  a  sales  staff  of  20 
approximately  93  independent  manufacturer  representatives' 
organizations (“Representatives”) having 108 offices to market 
our  products  in  the  United  States  and  Canada.  We  also  have  
international  sales  organization,  which  utilizes  12 
one 
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.

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  of  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  $30  million  (currently  unused).  We 
believe that we will have sufficient funds available to meet our 
working capital needs for the foreseeable future.   

2

2012AnnuAl RepoRtSeASonAlIty
Sales  of  our  products  are  moderately  seasonal  with  the  peak 
period being July - November of each year.

Item 1A.  RISk FActoRS
The  following  risks  and  uncertainties  may  affect  our  perfor-
mance and results of operations.

competItIon
In  the  standardized  market,  we  compete  primarily  with  
Lennox  International,  Inc.,  Trane  (Ingersoll  Rand  Limited), 
York  (Johnson  Controls  Inc.)  and  Carrier  (United Technologies 
Corporation).  All  of  these  competitors  are  substantially  larger 
and have greater resources than we do. 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, 2013, we employed 1,392 permanent employees 
and 4 temporary employees. Our employees are not currently 
represented  by  unions.  Management  considers  its  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.

envIRonmentAl mAtteRS
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  are  in  compliance 
with these laws and that future compliance will not materially 
affect our earnings or competitive position.

AvAIlABle InFoRm AtIon
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.

ouR BuSIneSS  cAn Be huRt B y economIc 
conDItIonS .
Our business is affected by a number of economic factors, in-
cluding the level of economic activity in the markets in which 
we operate. Since 2008, the state of the United States economy 
has  negatively  impacted  the  commercial  and  industrial  new 
construction  markets. The  decline  in  economic  activity  in  the 
United  States  has  materially  affected  our  financial  condition 
and  results  of  operations.  Sales  in  the  commercial  and  indus-
trial new construction markets correlate to the number of new 
homes and buildings that are built, which in turn is influenced 
by  cyclical  factors  such  as  interest  rates,  inflation,  consumer 
spending habits, employment rates and other macroeconomic 
factors  over  which  we  have  no  control.  In  the  HVAC  business, 
a  decline  in  economic  activity  as  a  result  of  these  cyclical  or 
other factors typically results in a decline in new construction 
and replacement purchases; but, thus far, has not 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.
Problems  in  the  availability,  or  increases  in  the  prices,  of  raw 
materials  or  components  could  depress  our  sales  or  increase 
the costs of our products. We are dependent upon components 
purchased  from  third  parties,  as  well  as  raw  materials  such 
as  steel,  copper  and  aluminum.  Occasionally,  we  enter  into 
cancelable  and  noncancelable  contracts  on  terms  from  six 
months  to  one  year  for  raw  materials  and  components  at 
fixed  prices.  However,  if  a  key  supplier  is  unable  or  unwilling 
to meet our supply requirements, we could experience supply 
interruptions  or  cost  increases,  either  of  which  could  have  an 
adverse effect on our gross profit. 

we RISk hAvInG loSSeS ReSultInG  FRom 
the uSe oF non-cAncelABle FIxeD pRIce 
contRActS.
Historically,  we  attempted  to 
impact  of  price 
fluctuations  on  commodities  by  entering  into  non-cancelable 
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 
derivative  instruments  since  they  meet  the  normal  purchases 
and sales exemption. 

limit  the 

3

we mAy not Be ABle to SucceSSFully 
Develop AnD mARket new pRoDuctS.
Our future success will depend upon our continued investment 
in  research  and  new  product  development  and  our  ability  to 
continue  to  realize  new  technological  advances  in  the  HVAC 
industry. Our inability to continue to successfully develop and 
market new products or our inability to achieve technological 
advances  on  a  pace  consistent  with  that  of  our  competitors 
could  lead  to  a  material  adverse  effect  on  our  business  and 
results of operations.

we mAy IncuR mAteRIAl coStS AS A ReSult 
oF wARRAnty AnD pRoDuct lIABIlIty 
clAImS thAt woulD neGAtIvely AFFect 
ouR pRoFItABIlIty.
The  development,  manufacture,  sale  and  use  of  our  products 
involve  a  risk  of  warranty  and  product  liability  claims.  Our 
product liability insurance policies have limits that, if exceeded, 
may result in material costs that would have an adverse effect 
on our future profitability. In addition, warranty claims are not 
covered  by  our  product  liability  insurance  and  there  may  be 
types of product liability claims that are also not covered by our 
product liability insurance.

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

the loSS oF noRmAn h. ASBjoRnSon 
coulD ImpAIR the GRowth oF ouR 
BuSIneSS.
Norman H. Asbjornson, 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,  and  our  products  are  technologically  advanced  
and well positioned for sales into the future, his death, disability 
or retirement could impair the growth of our business. We do 
not have an employment agreement with Mr. Asbjornson.

It should be noted, however, that the Board of Directors is in the 
process of evolving a succession plan relating to Mr. Asbjornson 
and the positions currently held by him.

information  technology 

ouR BuSIneSS  IS SuBject to the RISkS  
oF InteRRuptIonS By pRoBlemS Such AS 
computeR vIRuSeS.
We  depend  upon 
infrastructure, 
including network, hardware and software systems to conduct 
our  business.  Despite  our  implementation  of  network  and  
other  cyber  security    measures,  our  information  technology 
system  and  networks  could  be  disrupted  or  experience  a 
security  breach  from  computer  viruses,  break-ins  and  similar 
disruptions  from  unauthorized  tampering  with  our  computer 
systems.  Any  such  event  could  have  a  material  adverse  effect 
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 
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.

laws 

extReme GoveRnmentAl ReGul AtIonS.
We always face the possibility of new governmental regulations 
which  could  have  a  substantial  or  even  extreme  negative 
effect  on  our  operations  and  profitability.  Specifically,  Final 
Rule,    Regulatory  Identification  No.  1904-AC23,  published  on  
March  7,  2011,  which,  if  fully  implemented  subsequent  to 
the  current  extension  to  the  implementation  date  of  January 
1,  2014,  would  have  highly  detrimental  consequences  to  all 
industries involving sales of energy using products by imposing 
burdensome,  excessive  and, 
impossible  testing 
requirements.

in  part, 

In addition, several other intrusive component part regulations 
have  been  proposed  recently.  If  these  proposals  become 
final  rules,  the  effect  would  be  the  regulation  of  compressors 
andfans  in  products  for  which  the  DOE  does  not  have 
current  authority.  This  could  affect  equipment  we  currently  
manufacture and could have an impact on our product design, 
operations and profitability. 

4

2012AnnuAl RepoRtwe ARe SuBject to AD veRSe chAnGeS  In 
tAx lAwS.
Our  tax  expense  or  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 currently subject to state and local tax examinations for 
which we do not expect any major assessments. 

Item 3. leGAl pR oceeDInGS.
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.

Item 4. mIne SAFety DIScloSuRe.
Not applicable.

Item 1B. unReSolveD  StAFF 
commentS.
None.

Item 2. pRopeRtIeS .
As  of  December  31,  2012,  we  own  approximately  1.5  million 
square feet of space for office, manufacturing, warehouse and 
assembly operations in Tulsa, Oklahoma and Longview, Texas. 
We  believe  that  our  facilities  are  well  maintained  and  are  in 
good condition and suitable for the conduct of our business. 

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  861,000  sq.  ft.  manufacturing/warehouse 
building  and  a  70,000  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 
the original facility and the expansion facility. Both plants are of 
sheet metal construction.

Our  manufacturing  area  is  in  heavy  industrial  type  buildings, 
with total coverage by bridge cranes, containing manufacturing 
equipment  designed  for  sheet  metal  fabrication  and  metal 
stamping.  The  manufacturing  equipment  contained  in  the 
facilities consists primarily of automated sheet metal fabrication 
equipment,  supplemented  by  presses.  Assembly  lines  consist 
of  seven  cart-type  conveyor  lines  with  variable  line  speed 
adjustment,  which  are  motor  driven.  Subassembly  areas  and 
production line manning are based upon line speed. 

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.

pArt ii
Item 5. mARket FoR  ReGIStRAnt'S 
common equIty, Rel AteD 
StockholDeR mAtteRS AnD 
ISSueR puRchASeS oF equIty 
SecuRItIeS . 
Our  common  stock  is  quoted  on  the  NASDAQ  Global  Select 
Market under the symbol "AAON". The table below summarizes 
the high and low reported sale prices for our common stock for 
the past two fiscal years. As of the close of business on February 
28, 2013, there were 1,011 holders of record, and approximately 
4,144 beneficial owners, of our common stock.

QUArter ended

March 31, 2011

June 30, 2011

September 30, 2011

December 31, 2011

March 31, 2012

June 30, 2012

September 30, 2012

December 31, 2012

HigH

$ 21.98

$ 23.44

$ 24.23

$ 22.98

$ 22.04

$ 20.99

$ 20.81

$ 22.41

low

$ 17.51

$ 20.07

$ 14.91

$ 14.64

$ 17.75

$ 18.00

$ 17.55

$ 18.34

At the discretion of the Board of Directors we pay semi-annual 
cash  dividends.  Board  approval  is  required  to  determine  the 
date of declaration and amount for each semi-annual dividend 
payment. The Board of Directors approved dividend payments 
of $0.12 per share related to the 3-for-2 stock split effective June 
13, 2011. 

5

We  declared  dividends  to  shareholders  of  record  at  the  close 
of business on June 11, 2012, which were paid on July 2, 2012. 
At  a  meeting  of  the  Board  of  Directors  on  November  7,  2012, 
the  Board  declared  a  regular  semi-annual  cash  dividend  of 
$0.12  per  share,  and,  in  view  of  our  strong  financial  position, 
the  Board  also  declared  a  one-time  special  cash  dividend  of 
$0.12  per  share.  Both  dividends  were  paid  to  shareholders  of 
record at the close of business on December 3, 2012 and paid 
on December 24, 2012.

We  paid  cash  dividends  of  $8.8  million,  $5.9  million,  and  $9.2 
million in 2012, 2011, and 2010, respectively.

On  November  6,  2007,  our  Board  of  Directors  authorized 
a  stock  buyback  program,  targeting  repurchases  of  up  to 
approximately 10% (2.7 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 2.7 million shares under this 
program for an aggregate price of $36.1 million, or an average 
price of $13.36 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% 
(1.3  million  shares)  of  our  outstanding  stock  from  time  to 
time  in  open  market  transactions.  Through  June  28,  2010, 

we  repurchased  a  total  of  approximately  0.718  million  shares 
under this program for an aggregate price of $11.5 million, or an 
average price of $16.04 per share. We purchased the shares at 
current market prices. We did not repurchase any of our equity 
securities during 2012. 

On  July  1,  2005,  we  entered  into  a  stock  repurchase  arrange-
ment  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,  2012,  we  repurchased 
approximately 1.9 million shares for an aggregate price of $25.1 
million, or an average price of $13.38 per share. We purchased 
the shares at current market prices.

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,  2012,  we  repurchased 
approximately  0.734  million  shares  for  an  aggregate  price 
of  $11.2  million,  or  an  average  price  of  $15.25  per  share.  We 
purchased the shares at current market prices.

Repurchases during the fourth quarter of 2012 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 Approxi-
mate Dollar Value) of Shares (or 
Units) that May Yet Be Purchased 
Under the Plans or Programs

 $ 18,347 

 $ 24,458 

 $ 67,253 

 $ 110,058 

$ 19.69 

 $ 19.99 

 $ 21.26 

$ 20.72 

$ 18,347 

$ 24,458 

$ 67,253 

 $ 110,058 

-

-

-

-

period

October 2012

November 2012

December 2012

Total

6

2012AnnuAl RepoRtcompARAtIve Stock peRFoRm Ance GRAph 
The  following  performance  graph  compares  our  cumulative 
total  shareholder  return,  the  NASDAQ  Composite  and  a  peer 
group  of  U.S.  industrial  manufacturing  companies  in  the  air 
conditioning,  ventilation,  and  heating  exchange  equipment 
markets from December 31, 2007 through December 31, 2012. 

The  graph  assumes  that  $100  was  invested  at  the  close  of 
trading  December  31,  2007,  with  reinvestment  of  dividends. 
Our  peer  group  includes  Lennox  International,  Inc.,  Ingersoll 
Rand Limited, Johnson Controls Inc., and United Technologies 
Corporation.  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 2012

200.00 

180.00 

160.00 

140.00 

120.00 

100.00 

80.00 

60.00 

40.00 

20.00 

0.00 

2007 

2008 

2009 

2010 

2011 

2012 

AAON Inc. 

S&P 500 Index - Total Returns 

Peer Group 

This stock performance Graph is not deemed to be “soliciting material” or otherwise be considered to be “filed” with the SEC or 
subject to Regulation 14A or 14C under the Securities Exchange Act of 1934 (Exchange Act) or to the liabilities of Section 18 of 
the Exchange Act, and should not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or 
the Exchange Act, except to the extent the Company specifically incorporates it by reference into such a filing.

7

Item 6. SelecteD FInAncIAl D AtA.
The  following  selected  financial  data  should  be  read  in 
conjunction  with  our  Consolidated  Financial  Statements 

and  Notes  thereto  included  under  Item  8  of  this  report  and 
"Management's Discussion and Analysis of Financial Condition 
and Results of Operations" contained in Item 7.

results of operations:

2012

2011

2010

2009

2008

yeArS ended deCeMBer 31,

Net sales

Net income

Earnings per share:

Basic

Diluted

Dividends per share

Weighted average shares outstanding:

Basic

Diluted

(in thousands, except per share data)

$  303,114

$  266,220  

$  244,552  

$  245,282

$  279,725

$  27,449

$  13,986

$  21,894

$  27,721

$  28,589

$  1.12

$  1.11

$  0.36

24,550

24,699

$  0.57

$  0.56

$  0.24

24,690

24,881

$  0.87

$  0.87

$  0.24

25,198

25,339

$  1.07

$  1.07

$  0.24    

25,780

25,963

$  1.09

$  1.07

$  0.21

26,340

26,782

Financial position at end of Fiscal year:

2012

2011

2010

2009

2008

deCeMBer 31,

Working capital

Total assets

Long-term and current debt

Total stockholders’ equity

(in thousands)

$  51,922

$  45,700

$  55,502

$  65,354

$  40,600

193,493

-

138,136

178,981

4,575

122,504

160,277

156,211

140,743

-

76

116,739

117,999

3,113

96,522

Item 7. mAnAGement'S 
DIScuSSIon AnD  AnAlySIS oF 
FInAncIAl c onDItIon 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  our  products  to  all  50  states  in  the  United  States  and 
certain provinces in Canada. Foreign sales were approximately 
5% of our 2012 sales. 

Our business can be affected by a number of economic factors, 
including the level of economic activity in the markets in which 

we  operate.  The  recent  state  of  the  economy  has  negatively 
impacted  the  commercial  and  industrial  new  construction 
markets. A further decline in economic activity could result 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. 

We  sell  our  products  to  property  owners  and  contractors 
through  a  network  of  manufacturers’  representatives  and  our 
internal sales force. The 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 

8

2012AnnuAl RepoRtthe population. When new construction is down, we emphasize 
the replacement market. 

The following are key highlights and events that impacted our 
results of operations, cash flows, and financial condition in 2012:

The principal components of cost of goods sold are labor, raw 
materials,  component  costs,  factory  overhead,  freight  and 
engineering expense. The principal high volume raw materials 
used  in  our  manufacturing  processes  are  steel,  copper  and 
aluminum and are obtained from domestic suppliers. We also 
purchase  from  domestic  manufacturers  certain  components, 
including compressors, motors and electrical controls. 

The  price  levels  of  our  raw  materials  have  moderated  from 
the  high  prices  we  experienced  a  year  ago,  but  the  market 
continues  to  be  volatile  and  unpredictable  as  a  result  of  the 
uncertainty  related  to  the  U.S.  economy,  a  weakening  global 
economy, and November 2012’s presidential election.  For the 
year ended December 31, 2012, the price for copper increased 
by  approximately  0.5%  and  the  cost  for  steel  and  aluminum 
decreased approximately 2.5% and 8.0% respectively, from a year 
ago. For the year ended December 31, 2011 prices for copper 
and  steel  increased  approximately  3%  and  10%,  respectively 
from  prior  year,  while  the  cost  of  aluminum  decreased  ap-
proximately 2%.

We  attempt  to  limit  the  impact  of  price  fluctuations  on  these 
materials by entering into cancelable and non-cancelable fixed 
price contracts with our major suppliers for periods of 6 to 18 
months.  We  expect  to  receive  delivery  of  raw  materials  from  
in  our  manufacturing 
our  fixed  price  contracts  for  use 
operations.  In  addition,  from  time  to  time  we  use  derivative 
contracts  to  partially  mitigate  the  volatility  in  the  prices  for 
some of these commodities. We did not enter into a derivative 
contract for any of our key raw materials during the years ended 
December 31, 2012 and 2011.

•	 Net  sales  for  2012  were  $303.1  million,  the  highest  in  the 
Company’s history, compared to $266.2 million in 2011. The 
increase  in  net  sales  can  be  attributed  to  gains  in  market 
share in the non-residential and replacement markets along 
with price increases introduced earlier in the year. 

•	 We estimate that we have captured approximately 14% share 
of  the  rooftop  market  and  a  1%  share  of  the  coil  market. 
Approximately 55% of our sales were generated from the sale 
to  the  renovation  and  replacement  markets  and  45%  from 
new construction markets. 

•	

Income from operations was $44.2 million compared to $22.2 
million  in  2011. The  increase  in  operational  income  can  be 
attributed to higher sales and improved productivity during 
the year.

•	 Net income for 2012 was $27.4 million, up by $13.4 million, 

compared to $14.0 million in 2011. 

•	 We paid $14.1 million in capital expenditures, a decrease of 

$21.8 million from 2011. 

•	 We  paid  cash  dividends  of  $8.8  million  in  2012  compared 
to $5.9 million in 2011. The 2012 dividends included a one-
time  special  dividend  of  $0.12,  in  addition  to  the  regular 
semi-annual  dividend  of  $0.12,  declared  by  the  Board  on 
November 7, 2012, due to our strong financial position.

ReSultS oF opeRAtIonS
The following is a summary of the income statement information 
as a percentage of net sales:

Net sales

Cost of sales

Gross profit

Selling, general and administrative expenses

Loss (gain) on disposal of assets

Income from operations

       Interest expense

Interest income

Other income (expense), net

 Income before income taxes

Income tax provision

  Net income

yeArS ending deCeMBer 31,

2012

2011

2010

$  303,114

100.0%

$  266,220    

100.0%

$  244,552    

100.0%

232,615

70,499

26,261

4

44,234

(44)

86

41

44,317

16,868

$  27,449

76.7%

23.3%

8.7%

0.0%

14.6%

(0.0)%

0.0%

0.0%

14.6%

5.5%

9.1%

219,939

46,281  

22,310

1,802

22,169

(277)

              98

(477)

21,513

7,527

$  13,986 

82.6%

17.4%

8.4%

0.7%

8.3%

  (0.1)%

0.0%

(0.2)%

8.1%

2.8%

5.3%

189,364

55,188  

22,546

(73)

32,715

(45)

            258

(235)

32,693

10,799

$  21,894 

77.4%

22.6%

9.2%

0.0%

13.4%

(0.02)%

0.1%

(0.1)%

13.4%

4.4%

9.0%

9

yeAR  enDeD  DecemBeR  31,  2012 vS. 
yeAR enDeD DecemBeR 31, 2011

net SAleS
Net sales for the year ended December 31, 2012 increased by 
13.9%,  or  $36.9  million  to  $303.1  million,  compared  with  the 
same period in 2011. The increase in net sales was the result of 
the favorable reception to our new products, increased market 
share along with price increases introduced earlier in the year.

GRoSS pRoFIt
Gross profit increased by 52.3%, or $24.2 million, to $70.5 million 
in  2012  compared  to  2011.  As  a  percentage  of  sales,  gross 
profit was 23.3% and 17.4% in 2012 and 2011, respectively. The 
improvement in gross profit can be attributed to cost savings 
in  raw  materials,  increased  product  prices,  product  mix  and 
improved productivity. 

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. For the 
year ended December 31, 2012, the price for copper increased 
by  approximately  0.5%  and  the  cost  for  steel  and  aluminum 
decreased  approximately  2.5%  and  8.0%  respectively,  from  a  
year ago.  

SellInG, GeneRAl AnD  ADmInIStRAtIve 
expenSeS
(“SG&A”)  expenses 
Selling,  General  and  Administrative 
increased  by  17.7%,  or  $4.0  million,  to  $26.3  million  in  2012 
compared  to  2011,  and  as  a  percentage  of  net  sales,  SG&A 
expenses  increased  to  8.7%  in  2012  from  8.4%  in  2011.  The 
increase  in  SG&A  is  primarily  due  to  higher  profit  sharing 
expense as a result of higher operating income before income 
taxes  of  approximately  $2.5  million  and  higher  employee 
salaries  of  approximately  $2.1  million  as  a  result  of  salary  pay 
increases and management discretionary bonus incentive plan, 
partially  offset  by  decreases  in  our  warranty  expenses  of  $0.6 
million and advertising expenses of approximately $0.3 million.

InteReSt expenSe
Interest expense was approximately $0.044 million and $0.277 
million in 2012 and 2011, respectively. The decrease in interest 
expense  of  $0.233  million  in  2012  from  prior  year  was  due  to 
decreased  borrowings  on  the  revolving  credit  facility.  During 
2012  we  borrowed  $34.8  million  from  the  revolving  credit 
facility  as  compared  to  $82.1  million  in  2011.  Interest  on 
borrowings is payable monthly at LIBOR plus 2.5%. For the year 
ended December 31, 2012, we paid a weighted average interest 
rate of approximately 2.8%.

InteReSt Income
Interest  income  decreased  by  approximately  $0.012  million 
to  $0.086  million  in  2012  compared  to  the  same  period  in 

2011.  The  decrease  was  due  primarily  to  the  fact  that  we 
held  investments  from  January  of  2011  until  November  2011, 
when the investments fully matured, and we did not purchase 
additional interest bearing investments until May of 2012. 

otheR Income (expenSe)
Other income, net was $0.041 million for the year ended 2012, 
an  increase  of  $0.518  million  from  $0.477  million  of  expense 
in 2011. The higher 2011 expense was primarily due to repair 
expenses related to roof damages to one of our manufacturing 
facilities in Tulsa, Oklahoma caused by a severe snowstorm in 
February 2011.

yeAR  enDeD  DecemBeR  31,  2011 vS. 
yeAR enDeD DecemBeR 31, 2010

net SAleS
Net sales for the year ended December 31, 2011 increased by 
9%, or $21.7 million to $266.2 million, compared with the same 
period in 2010. The increase in net sales was the result of the 
favorable reception to our new products, a significant increase 
in the replacement market of approximately 10% over prior year, 
and increased market share.

GRoSS pRoFIt
Gross profit decreased by 16.1%, or $8.9 million, to $46.3 million 
in  2011  compared  to  2010.  As  a  percentage  of  sales,  gross 
profit was 17.4% and 22.6% in 2011 and 2010, respectively. The 
decrease in gross profit was caused by increases in raw material 
and  component  part  costs  of  approximately  6%  that  we  were 
unable to neutralize completely with price increases for some 
of our product lines, and increased labor costs and freight cost 
of 8% and 1%, 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. For the 
year ended December 31, 2011 we experienced price increases 
in copper and steel of approximately 3% and 10%, and an overall 
price decrease in aluminum of approximately 2% as compared 
to 2010. 

SellInG, GeneRAl AnD  ADmInIStRAtIve 
expenSeS
Selling,  General  and  Administrative 
(“SG&A”)  expenses 
decreased  by  $0.236  million,  or  1.0%  to  $22.3  million  in  2011 
compared  to  2010,  and  as  a  percentage  of  net  sales,  SG&A 
expenses  declined  to  8.4%  in  2011  from  9.2%  in  2010.  The 
decrease  was  primarily  due  to  lower  profit  sharing  expense 
of  approximately  $1.4  million  as  a  result  of  lower  operating 
income  before  income  tax  offset  by  increases  in  salaries  and 
employee benefits of $0.6 million, and advertising expense and 
professional fees of approximately $0.6 million. 

10

2012AnnuAl RepoRtInteReSt expenSe
Interest expense was approximately $0.277 million and $0.045 
million in 2011 and 2010, respectively. The increase in interest 
expense  of  $0.232  million  in  2011  from  prior  year  was  due  to 
increased  borrowings  on  the  revolving  credit  facility.  During 
2011  we  borrowed  $82.1  million  from  the  revolving  credit 
facility  as  compared  to  $20.8  million  in  2010.  Interest  on 
borrowings is payable monthly at LIBOR plus 2.5%. For the year 
ended December 31, 2011, we paid a weighted average interest 
rate of approximately 3.4%.

InteReSt Income
Interest income decreased by approximately $0.160 million to 
$0.098  million  in  2011  compared  to  the  same  period  in  2010. 
The  decreased  was  due  primarily  to  all  of  our  investments 
maturing and no additional funds invested in 2011. 

otheR Income (expenSe)
Other expense, net increased by $0.242 million to $0.477 million 
in  2011  from  $0.235  million  in  2010  due  to  repair  expenses 
related to the snowstorm in February of 2011, as noted above. 

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
On July 29, 2012 we renewed the line of credit with the Bank 
of Oklahoma, National Association. The revolving line of credit 
matures on July 28, 2013. We expect to renew our line of credit 
in  July  2013  with  favorable  terms  as  we  do  not  anticipate  a 
tightening of funds in the financial markets. Under the line of 
credit,  there  is  one  standby  letter  of  credit  of  $0.9  million.  At 
December  31,  2012  we  have  approximately  $29.1  million  of 
borrowings  available  under  the  revolving  credit  facility.  No 
fees are associated with the unused portion of the committed 
amount. 

As  of  December  31,  2012,  there  was  no  outstanding  balance 
under the revolving credit facility and $4.6 million borrowings 
were outstanding at December 31, 2011.  Interest on borrowings 
is  payable  monthly  at  LIBOR  plus  2.5%. The  weighted  average 
interest rate was 2.8% and 3.4% for the years ended December 
31, 2012 and 2011, respectively.

At  December  31,  2012  we  were  in  compliance  with  all  of  the 
covenants under the revolving credit facility. We are obligated 
to comply with certain financial covenants under the revolving 
credit  facility.  These  covenants  require  that  we  meet  certain 
parameters  related  to  our  tangible  net  worth,  total  liabilities 
to tangible net worth ratio and working capital. At December 
31,  2012  our  tangible  net  worth  was  $138.1  million,  which 
meets the requirement of being at or above $95.0 million. Our 
total liabilities to tangible net worth ratio was 0.4 to 1.0 which  

meets the requirement of not being above 2 to 1. Our working 
capital was $51.9 million, which meets the requirement of being 
at or above $40.0 million.  

We  repurchased  shares  of  stock  under  our  authorized  stock 
buyback programs, employees’ 401(k) savings, investment plan, 
and  from  option  exercises  of  our  directors  and  officers  in  the 
open  market  in  the  amount  of  $6.7  million  for  0.336  million 
shares,  $3.7  million  for  0.212  million  shares  and  $19.5  million 
for approximately 1.2 million shares of stock in 2012, 2011 and 
2010, respectively.

For the year ended December 31, 2012, 2011 and 2010 we paid 
cash  dividends  of  $8.8  million,  $5.9  million,  and  $9.2  million 
respectively.

Based on historical performance and current expectations, we 
believe  our  cash  and  cash  equivalents  balance,  the  projected 
cash  flows  generated  from  our  operations,  our  existing 
committed  revolving  credit  facility  (or  comparable  financing) 
and  our  expected  ability  to  access  capital  markets  will  satisfy 
our  working  capital  needs,  capital  expenditures  and  other 
liquidity requirements associated with our operations in 2013 
and the foreseeable future.

Statement of Cash Flows
The  table  below  reflects  a  summary  of  our  net  cash  flows 
provided by operating activities, net cash flows used in investing 
activities,  and  net  cash  flows  used  in  financing  activities  for  
the years indicated.

2012

2011

2010

(in millions)

$  51.2

$  26.5

$  32.2

(30.3)

    (24.5)

      (28.3)

(17.7)

     (4.3)

     (27.2)

Net cash provided by 
operating activities

Net cash used in investing 
activities

Net cash used in financing 
activities

Cash Flows from Operating Activities 
Net  cash  provided  by  operating  activities  was  $51.2  million 
in  2012  compared  to  $26.5  million  in  2011. This  increase  was 
due  to  higher  net  income  and  a  favorable  change  in  working  
capital.  For  the  year  ended  December  31,  2012,  net  income 
increased by $13.5 million. For 2011, net income decreased by 
$7.9 million from 2010. 

Significant fluctuations in working capital were as follows:

•	 Inventory  -  less  cash  was  used  in  2012  as  we  experienced 
decreases  in  raw  materials  prices  from  the  prior  year  end. 
Overall, inventories decreased $2.3 million to $32.6 million at 
December 31, 2012 compared to $34.9 million the previous 
year.  More  cash  was  used  in  2011  as  improved  demand 

11

resulted  in  increased  volume  and  higher  prices  for  raw 
materials,  component,  and  parts  in  our  inventory  balance 
as  compared  to  2010  resulting  in  decreased  cash  flows  of  
$1.3 million.

•	 Accounts  receivable  –  increased  by  approximately  $9.6 
million from the prior year primarily as a result of increased 
sales. In 2011, we experienced improved collection rates as 
a result of targeted sales discounts for some of our selected 
customers.  This  resulted  in  a  decrease  in  our  accounts 
receivable balance of approximately $6.1 million from 2010. 

•	 Accrued liabilities – accrued liabilities increased cash flows 
by approximately $6.6 million due to an increase in customer 
product  pre-payments  and  credits  of  approximately 
$2.1  million,  an  increase  in  payroll  and  employee  benefit 
accruals  of  approximately  $3.0  million  and  an  increase 
in  the  accrual  of  amounts  due  to  our  representatives  of 
approximately  $1.5    million.  Accrued  liabilities  decreased 
cash  flows  by  approximately  $3.0  million  in  2011  due  to 
changes in certain reserves estimates as a result of better and 
improved  experience  and  a  decreased  in  amounts  due  to  
our  representatives  offset  by  a  slight  increase  in  accrued 
payroll and employee benefits. 

Cash Flows from Investing Activities 
Net  cash  used  in  investing  activities  was  $30.3  million  for  the 
year ended December 31, 2012 compared with net cash used 
in  investing  activities  of  $24.5  million  in  2011.  The  change  is 
primarily  attributable  to  2012  investments  of  $6.5  million  in 
certificates  of  deposit  and  $11.7  million  in  corporate  notes 
and bonds, proceeds from investments in 2012 of $1.3 million 
compared  to  approximately  $10.9  million  in  2011,  offset  by  
a  decrease  in  capital  expenditures  of  $21.7  million  from  the 
prior year. Net cash used in investing activities was $24.5 million 
for  the  year  ended  December  31,  2011  compared  with  $28.3 
million  in  2010. The  change  in  investing  activities  is  primarily 
attributable to the net proceeds from investments in 2011 that 
were offset by an increase in capital expenditures during 2011.

in  2012  were  primarily 

Capital  expenditures  were  $14.1  million,  $35.9  million  and 
$17.5  million  in  2012,  2011  and  2010,  respectively.  Capital 
in  our 
expenditures 
manufacturing  and  production  equipment  to  support  our 
growth  and 
improve  efficiencies  with  equipment  which 
combines  the  latest  advancement  in  automation  and  laser 
technology.

investments 

The  capital  expenditure  program  for  2013  is  estimated  to  be 
approximately $10 million. Many of these projects are subject 
to  review  and  cancellation  at  the  discretion  of  our  CEO  and 
Board of Directors without incurring substantial charges.

Cash Flows from Financing Activities
Net  cash  used  in  financing  activities  during  the  year  ended 
December  31,  2012  was  $17.7  million,  compared  with  $4.3 
million  during  2011.  The  change  in  financing  activities  is 
primarily  related  to  approximately  $6.7  million  of  share 
repurchases  as  well  as  dividend  payments  of  $8.8  million, 

and  reduced  borrowings  and  increased  payments  on  our 
credit  facility  resulting 
in  no  outstanding  borrowings  at  
December 31, 2012.

Net  cash  used  in  financing  activities  during  the  year  ended 
December  31,  2011  was  $4.3  million,  compared  with  $27.2 
million during 2010. The change in financing activities is primarily 
related  to  approximately  $3.7  million  of  share  repurchases  as 
well  as  dividend  payments  of  $5.9  million,  partially  offset  by 
an increase in net borrowing of approximately $4.6 million and 
stock options and restricted stock awards exercised.

oFF-BAlAnce Sheet ARRAnGement S
We  are  not  party  to  any  off-balance  sheet  arrangements  that 
have or are reasonably likely to have a material current or future 
effect on our financial condition, changes in financial condition, 
revenues,  expenses,  results  of  operations,  liquidity,  capital 
expenditures or capital resources.

commItmentS AnD contRActuAl 
AGReementS 
We  have  no  material  contractual  agreements  as  of  December 
31, 2012.

contInGencIeS
We  are  subject  to  various  claims  and  legal  actions  that  arise 
in  the  ordinary  course  of  business.  We  closely  monitor  these 
claims and legal actions and frequently consult with our legal 
counsel to determine whether they may, when resolved, have 
a material adverse effect on our financial position or results of 
operations. While we are unable to estimate the ultimate dollar 
amount of exposure or loss in connection with these matters, 
we  make  accruals  as  warranted.  We  believe  that  we  have 
adequately  provided  in  our  consolidated  financial  statements 
for the potential impact of these contingencies. We also believe 
that  the  outcomes  will  not  significantly  affect  the  long-term 
results of operations, our financial position or our cash flows.

cRItIcAl AccountInG polIcIeS  
The  preparation  of  financial  statements  in  conformity  with 
accounting  principles  generally  accepted  in  the  United  States  
of  America  (“US  GAAP”)  requires  management  to  make 
estimates  and  assumptions  about  future  events,  and  apply 
judgments that affect the reported amounts of assets, liabilities, 
revenue and expenses in our consolidated financial statements 
and  related  notes.  We  base  our  estimates,  assumptions  and 
judgments  on  historical  experience,  current  trends  and  other 
factors  believed  to  be  relevant  at  the  time  our  consolidated 
financial  statements  are  prepared.  However,  because  future 
events and their effects cannot be determined with certainty, 
actual results could differ from our estimates and assumptions, 
and  such  differences  could  be  material.  We  believe  the 
following critical accounting policies affect our more significant 
estimates, assumptions and judgments used in the preparation 
of our consolidated financial statements.

12

2012AnnuAl RepoRt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 
and 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. 

(“Representatives”).  Representatives 

In  addition,  the  Company  presents  revenues  net  of  sales  tax 
and net of certain payments to our independent manufacturer 
are 
representatives 
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 $57.1 million, $51.6 million and $51.4 
million for the years ended December 31, 2012, 2011, and 2010, 
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  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 appli-
cable).  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 as-
sociated costs, and any known identifiable warranty issue.  

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 any claim over $125,000 is covered 
by insurance.

Stock  Compensation  –  We  measure  and  recognize  com-
pensation  expense  for  all  share-based  payment  awards  made 
to  our  employees  and  directors,  including  stock  options  and 
restricted  stock  awards,  based  on  their  fair  values  at  the  time 
of  grant.  Compensation  expense,  net  of  estimated  forfeitures, 
is recognized on a straight-line basis during the service period 
of the related share-based compensation award. Forfeitures are 
estimated  based  on  the  Company’s  historical  experience. The 
fair  value  of  each  option  award  and  restricted  stock  award  is 
estimated on the date of grant using the Black-Scholes-Merton 
option pricing model. The use of the Black-Scholes option valu-
ation model requires the input of subjective assumptions such 
as:  the  expected  volatility,  the  expected  term  of  the  options 
granted, expected dividend yield, and the risk free rate. 

new AccountInG pRonouncementS  
In  June  2011,  the  FASB  issued  ASU  No.  2011-05,  Presentation 
of Comprehensive Income and the update to this standard was 
issued December 2011. This standard eliminates the option to 
report other comprehensive income and its components in the 
statement of changes in equity. The amendment requires that all 

13

non-owner changes in stockholders’ equity be presented either 
in a single continuous statement of comprehensive income or in 
two separate but consecutive statements. In the two-statement 
approach, the first statement should present total net income 
and  its  components  followed  consecutively  by  a  second 
statement  that  should  present  total  other  comprehensive 
income,  the  components  of  other  comprehensive  income, 
and the total of comprehensive income. The amendment must 
be  applied  retrospectively  and  is  effective  for  fiscal  years  and 
interim periods within those years, beginning after December 
15, 2011. The adoption of this standard did not have a material 
effect on our consolidated financial statements.

Item 7A. quAntItAtIve AnD  
quAlItAtIve DIScloSuReS  ABout 
mARket RISk.
We experience various market risks, primarily from commodity 
prices  and  interest  rates.  We  do  not  use  derivative  financial 
instruments  to  hedge  our 
interest  rate  risk.  However, 
occasionally we use financial derivatives to economically hedge 
our commodity price risk. We do not use financial derivatives for 
speculative purposes. 

InteReSt R Ate RISk
We  are  exposed  to  interest  rate  risk  on  our  revolving  credit 
facility, which bears a variable interest rate of LIBOR plus 2.5%. At 
December 31, 2012 we had no borrowings outstanding under 
the revolving credit facility. The weighted average interest rate 
was 2.8% and 3.4% for the years ended December 31, 2012 and 
2011, respectively.

commoDIty pRIce RISk
We are exposed to volatility in the prices of commodities used 
in  some  of  our  products  and  occasionally  we  use  fixed  price 
cancellable  and  non-cancellable  contracts  with  our  major 
suppliers for periods of 6 to 18 months to manage this exposure. 
From time to time we use financial derivatives to economically 
hedge  our  commodity  price  risk. We  do  not  have  committed 
commodity  derivative  instruments  in  place  at  December  31, 
2012. 

Item 8. FInAncIAl StAtementS 
AnD SupplementARy DAtA.
The financial statements and supplementary data are included 
commencing at page 22.

Item 9. chAnGeS  In AnD  
DISAGReementS wIth 
AccountAntS on AccountInG 
AnD FInAncIAl DIScloSuRe.
Not Applicable.

Item 9A. contRolS AnD 
pRoceDuReS .
(a) evaluation of Disclosure controls and procedures
As of the end of the period covered by this Annual Report on 
Form 10-K (the Evaluation Date), we carried out an evaluation, 
under  the  supervision  and  with  the  participation  of  our 
management,  including  our  Chief  Executive  Officer  and  Chief 
Financial  Officer  with  the  oversight  of  the  Audit  Committee, 
regarding the effectiveness of the design and operation of our 
disclosure controls and procedures (as defined in Rule 13a-15(e) 
promulgated  under  the  Securities  Exchange  Act  of  1934,  as 
amended).  Based  upon  that  evaluation,  our  Chief  Executive 
Officer and Chief Financial Officer have concluded, as of the end 
of the period covered by this Annual Report, that our disclosure 
controls  and  procedures  were  not  effective  as  a  result  of  the 
identified  material  weakness  in  internal  control  over  financial 
reporting, the nature of which is summarized below.

is 

(b) management's Annual Report on Internal control over 
Financial Reporting
Our  management 
for  establishing  and 
responsible 
maintaining adequate internal control over financial reporting, 
as defined in Exchange Act Rules 13a-15(f ) and 15d-15(f ). Our 
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.

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.

Under  the  supervision  and  with  the  participation  of  our 
management, 
including  our  Chief  Executive  Officer  and 
Chief  Financial  Officer,  we  conducted  an  evaluation  of  the 
effectiveness of our internal control over financial reporting as of 
December 31, 2012 based on the criteria established in Internal  
Control  –  Integrated  Framework  issued  by  the  Committee 
of  Sponsoring  Organizations  of  the  Treadway  Commission. 
Based on the results of this evaluation, we concluded that our 
internal control over financial reporting was not effective as of 
December  31,  2012  due  to  a  material  weakness  in  the  review 
procedures  associated  with  key  financial  statement  elements 
related to intercompany activities, income taxes and inventory.

In  light  of  the  material  weakness,  the  Company  performed 
additional analysis and other post-closing procedures to ensure 
that  the  Company’s  consolidated  financial  statements  were 
prepared  in  accordance  with  generally  accepted  accounting 
principles and accurately reflect the results for the year ended 
December  31,  2012.  As  a  result,  notwithstanding  the  material 
weakness as described above, management concluded that the 
consolidated  financial  statements  included  in  this  Form  10-K 
present  fairly  in  all  material  respects,  the  Company’s  financial 
position,  results  of  operations  and  cash  flows  for  the  periods 
presented. 

14

2012AnnuAl RepoRtA  material  weakness  is  a  deficiency,  or  a  combination  of 
deficiencies, in internal control over financial reporting, such that 
there is a reasonable possibility that a material misstatement of 
the Company’s annual or interim financial statements will not 
be prevented or detected on a timely basis.

The  effectiveness  of  the  Company’s  internal  control  over 
financial reporting as of December 31, 2012 has been audited 
by  Grant  Thornton  LLP,  our  independent  registered  public 
accounting  firm,  as  stated  in  their  report  which  is  included  in 
this Item 9A of this report on Form 10-K.

(c) Remediation of material weakness
To  remediate  the  material  weakness  described  above  and 
improve  the  operational  effectiveness  of  our  internal  control 
over  financial  reporting,  management  is  in  the  process  of 
implementing the following items:  

•	 Hire a new Chief Accounting Officer with requisite technical 
and  financial  reporting  skills  to  help  address  the  identified 
matters.

•	 Create a better model for analyzing inventory variances and 

automating this process to help eliminate errors.

•	 Verify  the  accuracy  of  reports  and  data  used  in  critical 

calculations.

•	 Design  a  process  and  controls  to  ensure  a  more  precise 
review  is  performed  for  manual  journal  entries  relating  to 
critical calculations and estimates.

The  Company  began  implementing  these  items  in  the  fourth 
quarter of 2012. However, not all items have been implemented 
yet  and  some  items  will  be  implemented  subsequent  to  the 
filing  of  this  Form  10-K.  The  material  weakness  will  be  fully 
remediated when, in the opinion of management, the revised 
control processes have been operating for a sufficient period of 
time to provide reasonable assurance as to their effectiveness. 
The  remediation  and  ultimate  resolution  of  our  material 
weakness  will  be  reviewed  by  the  Audit  Committee  of  our 
Board of Directors.

(d) changes in Internal control over Financial Reporting
Except  as  discussed  in  item  (c)  above,  there  have  been  no 
changes  in  internal  control  over  financial  reporting  that 
occurred during the fourth quarter of 2012 that have materially 
affected, or are reasonably likely to materially affect, our internal 
control over financial reporting.

15

RepoRt oF InDepenDent  ReGISteReD puBlIc  AccountInG FIRm
Board of Directors and Stockholders
AAON, Inc.

We have audited the internal control over financial reporting of AAON, Inc. (a Nevada corporation) and subsidiaries 
(the “Company”) as of December 31, 2012, 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  (“Management’s  Report”).  Our  responsibility  is  to  express  an 
opinion on the Company’s internal control over financial reporting based on our audit.

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

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

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

A material weakness is a deficiency, or combination of control deficiencies, in internal control over financial reporting, 
such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial 
statements will not be prevented or detected on a timely basis. The following material weakness has been identified 
and included in management’s assessment:

•	 As indicated in the accompanying Management’s Report, management has identified a material weakness 
in  the  review  procedures  associated  with  key  financial  statement  elements  related  to  intercompany 
activities, income taxes and inventory. 

In our opinion, because of the effect of the material weakness described above on the achievement of the objectives 
of  the  control  criteria,  the  Company  has  not  maintained  effective  internal  control  over  financial  reporting  as  of 
December 31, 2012, 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  financial  statements  of  the  Company  as  of  and  for  the  year  ended  December  31,  2012. 
The material weakness identified above was considered in determining the nature, timing, and extent of audit tests 
applied in our audit of the 2012 consolidated financial statements, and this report does not affect our report dated 
March 14, 2013, which expressed an unqualified opinion on those financial statements. 

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 14, 2013

16

2012AnnuAl RepoRt 
 
 
Item 9B.  otheR InFoRmAtIon.
None.

pArt iii
Item 10.  DIRectoRS, executIve 
oFFIceRS AnD coRpoRAte 
GoveRnAnce.
The information required by Items 401, 405, 406 and 407(c)(3), 
(d)(4) and (d)(5) of Regulation S-K is incorporated by reference 
to the information contained in our definitive Proxy Statement 
to  be  filed  with  the  Securities  and  Exchange  Commission  in 
connection with our annual meeting of shareholders scheduled 
to be held on May 21, 2013.

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 
annual meeting of shareholders scheduled to be held on May 
21, 2013.

Item 12. SecuRIty owneRShIp 
oF ceRtAIn BeneFIcIAl o wneRS 
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  annual  meeting  of  stockholders  scheduled  to  be  held  
May 21, 2013.

Item 13. ceRtAIn RelAtIonShIpS  
AnD RelAteD tRAnSActIonS, AnD 
DIRectoR InDepenDence
The information required to be reported pursuant to Item 404 of 
Regulation S-K and paragraph (a) of Item 407 of Regulation S-K 
is incorporated by reference in our definitive proxy statement 
relating to our  2013 annual meeting of shareholders scheduled 
to be held May 21, 2013.

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 
have not entered into any new related party transactions and 
have no preexisting related party transactions in 2012, 2011 or 
2010.

Item 14. pRIncIpAl AccountAnt 
FeeS AnD SeRvIceS.
This information is incorporated by reference in our definitive 
Proxy Statement to be filed with the Securities and Exchange 
Commission 
in  connection  with  our  annual  meeting  of 
stockholders scheduled to be held May 21, 2013.

17

pArt iV
Item 15.  exhIBItS AnD FInAncIAl StAtement ScheDuleS.
(a)  Financial statements.

See Index to Consolidated Financial Statements on page 20.

(b)  Exhibits:

(3) 

(4) 

Articles of Incorporation (i)

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

Bylaws (i)

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

(A) 
(A-1)  Amendment Seven to Third Restated Revolving Credit Loan Agreement (v)
(B) 

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

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

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

(21) 

List of Subsidiaries (ix)

(23) 

Consent of Grant Thornton LLP

(31.1)  Certification of CEO

(31.2)  Certification of CFO

(32.1)  Section 1350 Certification – CEO

(32.2)  Section 1350 Certification – CFO
__________

(i) 

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

(ii) 

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.

(iii) 

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 July 29, 2012

(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.

(vii)  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.

(viii) Incorporated herein by reference to Appendix B to our definitive Proxy Statement for the 2007 Annual Meeting 

of Stockholders filed April 23, 2007.

(ix) 

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

18

2012AnnuAl 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.

AAon, Inc.

Dated:  March 14, 2013

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 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

Dated:  March 14, 2013

19

/s/ Norman H.  Asbjornson

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

/s/ Scott M. Asbjornson

Scott M. Asbjornson
Chief Financial Officer
(principal financial officer) 

/s/ Rebecca A. Thompson

Rebecca A. Thompson
Chief Accounting Officer
(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

 
 
 
 
 
 
InDex to conSolIDAteD FInAncIAl  StAtementS  

pAGe

Report of Independent Registered Public Accounting Firm  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Consolidated Balance Sheets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Consolidated Statements of Income  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Consolidated Statements of Comprehensive Income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Consolidated Statements of Stockholders’ Equity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Consolidated Statements of Cash Flows   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Notes to Consolidated Financial Statements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

20

2012AnnuAl RepoRt21

RepoRt oF InDepenDent  ReGISteReD puBlIc  AccountInG FIRm
Board of Directors and Stockholders
AAON, Inc.

We  have  audited  the  accompanying  consolidated  balance  sheets  of  AAON,  Inc.  (a  Nevada  Corporation)  and 
subsidiaries (the “Company”) as of December 31, 2012 and 2011, and the related consolidated statements of income, 
comprehensive income, stockholders’ equity, and cash flows for each of the three years in the period ended December 
31, 2012. 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, 2012 and 2011, and the results of their operations 
and their cash flows for each of the three years in the period ended December 31, 2012, in conformity with accounting 
principles generally accepted in the United States of America. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States), the Company’s internal control over financial reporting as of December 31, 2012, 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  14,  2013,  expressed  an  adverse  opinion  on  the  effectiveness  of 
internal control over financial reporting. 

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 14, 2013

22

2012AnnuAl RepoRt 
 
 
AAon, Inc. AnD SuBSIDIARIeS
ConSolidAted BAlAnCe SHeetS

opeRAtInG ActIvItIeS

ASSetS
Current assets:

Cash and cash equivalents
Certificates of deposit
Investments held to maturity at amortized cost
Accounts receivable, net
Income tax receivable
Note receivable
Inventories, net
Prepaid expenses and other
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

Certificates of deposit
Investments held to maturity at amortized cost
Note receivable, long-term
Total assets

lIABIlItIeS  AnD StockholDeRS’ equIty
Current liabilities:

Revolving credit facility
Accounts payable
Accrued liabilities
Total current liabilities
Deferred tax liabilities
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.001 par value, 11,250,000 shares authorized,  no  

shares issued

Common stock, $.004 par value, 112,500,000 shares authorized, 

24,517,749 and 24,618,324 issued and outstanding at December 
31, 2012 and 2011, respectively

Additional paid-in capital
Retained earnings
Total stockholders’ equity
Total liabilities and stockholders’ equity

deCeMBer 31,

2012

2011

(in thousands, except share and per share data)

 $  3,159 
 3,120 
 2,832 
 43,866 
 694 
 28 
 32,614 
 740 
 4,493 
 91,546 

 1,340 
 59,761 
 117,617 
 8,906 
 187,624 
 96,929 
 90,695 
 2,120 
 8,041 
 1,091 
 $  193,493 

 -   
 13,047 
 26,578 
 39,625 
 15,732 

 $  13 
 -   
 -   
 34,137 
 10,016 
 27 
 34,948 
 723 
 4,523 
 84,387 

 1,340 
 56,057 
 114,256 
 7,784 
 179,437 
 85,935 
 93,502 
 -   
 -   
 1,092 
$  178,981 

 $  4,575 
 14,118 
 19,994 
 38,687 
 17,790 

-

-

98
 -   
 138,038 
 138,136 
 $  193,493 

98
-
 122,406 
 122,504 
$  178,981 

The accompanying notes are an integral part of these consolidated financial statements.

23

AAon, Inc. AnD SuBSIDIARIeS  
ConSolidAted StAteMentS oF inCoMe

Net sales

Cost of sales

Gross profit

Selling, general and administrative expenses

Loss (gain) on disposal of assets

Income from operations

Interest expense 

Interest income

Other income (expense), net 

Income before 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,

2012

2011

2010

(in thousands, except share and per share data)

 $  303,114 

$  266,220  

$  244,552  

 232,615 

       219,939

       189,364

 70,499 

 26,261 

 4 

 44,234 

 (44)

 86 

 41 

 44,317 

 16,868 

         46,281

         22,310

1,802

22,169

(277)

98

(477)

21,513

7,527

$  27,449 

$  13,986

$  1.12

$  1.11

$  0.36

24,550

24,699

$  0.57

$  0.56

$  0.24

24,690

24,881

         55,188

         22,546

(73)

         32,715

  (45) 

258

(235)

         32,693

         10,799

$  21,894

$   0.87

$  0.87

$  0.24

25,198

25,339

The accompanying notes are an integral part of these consolidated financial statements.

24

2012AnnuAl RepoRt 
AAon, Inc. AnD SuBSIDIARIeS  
ConSolidAted StAteMentS oF CoMpreHenSiVe inCoMe

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

Net income

$  27,449

$  13,986  

$  21,894

Other comprehensive income, net of tax:

Foreign currency translation adjustments

Other comprehensive income

Comprehensive income

-

-

-

-

(1,077)

(1,077)

$  27,449

$  13,986

$  20,817

The accompanying notes are an integral part of these consolidated financial statements.

25

AAon, Inc. AnD SuBSIDIARIeS  
ConSolidAted StAteMentS oF StoCkHolderS’ eQUity

ASSetS

CoMMon StoCk

SHAreS

AMoUnt

pAid-in  
CApitAl

ACCUMUlAted
otHer 
CoMpreHenSiVe 
inCoMe

(in thousands)

retAined 
eArningS

totAl

Balance at December 31, 2009

 25,821 

$  102 

 $  644 

 $  1,077 

 $  116,176 

 $  117,999 

Net income

Foreign currency translation adjust-
ment (net of taxes of $0.6 million)

Stock options exercised and restricted 
stock awards vested, including tax 
benefits

Share-based compensation

Stock repurchased and retired

Dividends 

Balance at December 31, 2010

Net income

Stock options exercised and restricted 
stock awards vested, including tax 
benefits

Share-based compensation

Stock repurchased and retired

Dividends 

Balance at December 31, 2011

Net income

Stock options exercised and restricted 
stock awards vested, including tax 
benefits

Share-based compensation

Stock repurchased and retired

Dividends 

 -   

 -   

 170 

 -   

 (1,233)

 -   

 24,758 

 -   

 72 

 -   

 (212)

 -   

 24,618 

 236 

 -   

 (336)

 -   

 -   

 -   

 -   

 -   

 (3)

 -   

 99 

 -   

 -   

 -   

 (1)

 -   

 98 

 1 

 -   

 (1)

 -   

Balance at December 31, 2012

 24,518 

 $  98 

 -   

 -   

 1,524 

 791 

 (2,959)

 -   

 -   

 -   

 705 

 680 

 (1,375)

 (10)

 -   

 2,388 

 1,294 

 (3,682)

 -   

 -   

 -   

 21,894 

 21,894 

 (1,077)

 1,155 

 78 

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 -   

 1,524 

 791 

 (16,518)

 (19,480)

 (6,067)

 (6,067)

 116,640 

 116,739 

 13,986 

 13,986 

 -   

 -   

 (2,295)

 (5,925)

 705 

 680 

 (3,671)

 (5,935)

 122,406 

 122,504 

 27,449 

 27,449 

 -   

 -   

 (2,977)

 (8,840)

 2,389 

 1,294 

 (6,660)

 (8,840)

 $  138,038 

 $  138,136 

The accompanying notes are an integral part of these consolidated financial statements.

26

2012AnnuAl RepoRtAAon, Inc. AnD SuBSIDIARIeS 
ConSolidAted StAteMentS oF CASH FlowS

opeRAtInG ActIvItIeS
Net income

Adjustments to reconcile net income to net cash provided 
by operating activities:

Depreciation

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

Foreign currency transaction gain

Interest income on note receivable

Deferred income taxes

Changes in assets and liabilities:

Accounts receivable

Income tax 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 deposits

Maturities of certificates of deposits

Purchases of investments held to maturity

Maturities of investments

Proceeds from assets held for sale

Proceeds from called investment

Capital expenditures

Principal payments from note receivable

Net cash used in investing activities

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

 $  27,449 

 $  13,986 

 $  21,894 

 13,407 

 155 

 (83)

 63 

 1,294 

 (393)

 4 

 -   

 (27)

 (42)

 11,397 

 156 

 (289)

 (50)

 680 

 (211)

 1,802 

 -   

 (8)

 -   

 (2,028)

 10,122 

 (9,646)

 9,715 

 2,271 

 (17)

 -   

 2,461 

 6,584 

 51,167 

 11 

 (6,540)

 1,300 

 (11,654)

 -   

 -   

 626 

 6,053 

 (10,016)

 (1,296)

 (67)

 -   

 (2,751)

 (3,024)

 26,484 

 482 

 -   

 1,503 

 -   

 9,364 

 -   

 -   

 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 

 -   

 (14,147)

 (35,914)

 (17,470)

 69 

 27 

 -   

 (30,335)

 (24,538)

 (28,276)

27

(Continued on next page)

AAon, Inc. AnD SuBSIDIARIeS 
ConSolidAted StAteMentS oF CASH FlowS (ContinUed)

FInAncInG  ActIvItIeS
Borrowings under revolving credit facility

Payments under revolving credit facility

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

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

 34,847 

 (39,422)

 -   

 1,996 

 393 

 (6,660)

 (8,840)

 (17,686)

 82,078 

 (77,503)

 -   

 494 

 211 

 (3,671)

 (5,935)

 (4,326)

 20,839 

 (20,839)

 (76)

 1,168 

 356 

 (19,480)

 (9,168)

 (27,200)

eFFeCtS oF exCHAnge rAte on CASH

-

 -   

 78 

net inCreASe (deCreASe) in CASH And  
CASH eQUiVAlentS

CASH And CASH eQUiVAlentS,  
Beginning oF yeAr

CASH And CASH eQUiVAlentS,  
end oF yeAr

3,146

 (2,380)

 (23,246)

 13 

 2,393 

 25,639 

 $  3,159 

 $  13 

 $  2,393 

The accompanying notes are an integral part of these consolidated financial statements.

28

2012AnnuAl RepoRtAAon, Inc. AnD SuBSIDIARIeS 
noteS to ConSolidAted FinAnCiAl StAteMentS
December 31, 2012

1.  BUSineSS deSCription
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,  air-handling  units,  make-up  air  units,  heat 
recovery units, condensing units and coils.

2.  SUMMAry oF SigniFiCAnt 
ACCoUnting poliCieS

Principles of Consolidation
These  financial  statements  are  prepared  in  accordance 
with  accounting  principles  generally  accepted  in  the 
United States of America. The accompanying consolidated 
financial statements include the accounts of the Company 
and  its  wholly-owned  subsidiaries.  All  significant  inter-
company accounts and transactions have been eliminated.

Cash and Cash Equivalents
We consider all highly liquid temporary investments with 
original maturity dates of three months or less to be cash 
equivalents.  Cash  and  cash  equivalents  consist  of  bank 

deposits and highly liquid, interest-bearing money market 
funds. The Company’s cash and cash equivalents are held 
in  a  few  financial  institutions  in  amounts  that  exceed 
the  insurance  limits  of  the  Federal  Deposit  Insurance 
Corporation.    However,  management  believes  that  the 
Company’s  counterparty  risks  are  minimal  based  on  the 
reputation and history of the institutions selected.

Investments
Certificates of Deposit
We  invested  $6.5  million  in  certificates  of  deposit  for  the 
year  ending  December  31,  2012  with  various  maturities 
ranging from two months to two years. The certificates of 
deposit bear interest ranging from 0.3% to 0.85% per annum.  
We did not invest in any certificates of deposit in 2011.

Investments Held to Maturity
Our  investments  held  to  maturity  are  comprised  of 
$10.9  million  of  corporate  notes  and  bonds  with  various 
maturities  ranging  from  two  months  to  25  months.   The 
investments have moderate risk with S&P ratings ranging 
from A+ to BBB-.  We did not invest in any investments held 
to maturity in 2011.  

We  record  the  amortized  cost  basis  and  accrued  interest 
of  the  corporate  notes  and  bonds  in  the  Consolidated 
Balance  Sheets.   We  record  the  interest  and  amortization 
of bond premium to interest income in the Consolidated 
Statements of Income.  

The 
following  summarizes  the  amortized  cost  and 
estimated fair value of our investments held to maturity at 
December 31, 2012:

AMortized 
CoSt

groSS  
UnreAlized 
gAin

groSS  
UnreAlized 
loSS

FAir
VAlUe

cuRRent ASSet S:
Investments held to maturity

non cuRRent ASSet S:
Investments held to maturity

Total

$  2,832

8,041

$  10,873

(in thousands)

-

-

-

$  (1)

$  2,831

(9)

8,032

  $  (10)

$  10,863

We evaluate these investments for other-than-temporary impairments on a quarterly basis. We do not believe that  
any of the unrealized losses represent an other-than-temporary impairment.

29

Accounts and Notes Receivable
Accounts  and  notes  receivable  are  stated  at  amounts 
due  from  customers,  net  of  an  allowance  for  doubtful 
accounts.  We generally do not require that our customers 
provide collateral. The Company determines its allowance 
for  doubtful  accounts  by  considering  a  number  of 
factors, including the credit risk of specific customers, the 
customer’s  ability  to  pay  current  obligations,  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.  

in 

Concentration of Credit Risk
Our  customers  are  concentrated  primarily 
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 for the years 
ended December 31, 2012, 2011 and 2010.  No customer 
accounted for 10% of our sales during 2012, 2011 or 2010.  
Other  than  one  customer  who  placed  an  exceptionally 
large order with an invoice date of 12/27/12 and a payment 
date of 1/17/13, no customer accounted for more than 5% 
of our accounts receivable balance at December 31, 2012, 
2011 or 2010.

Fair Value of Financial Instruments
The  carrying  amounts  of  cash  and  cash  equivalents, 
liabilities 
receivables,  accounts  payable  and  accrued 
approximate fair value because of the short-term maturity 
of  the  items.    The  carrying  amount  of  the  Company's 
revolving  line  of  credit,  and  other  payables,  approximate 
their  fair  values  either  due  to  their  short  term  nature, 
the  variable  rates  associated  with  the  debt  or  based  on 
current rates offered to the Company for debt with similar 
characteristics.  

Inventories 
Inventories are valued at the lower of cost or market using 
the  first-in,  first-out  (“FIFO”)  method.  Cost  in  inventory 
includes  purchased  parts  and  materials,  direct  labor 
and  applied  manufacturing  overhead.  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.

Property, Plant and Equipment
including  significant 
Property,  plant  and  equipment, 
improvements,  are  recorded  at  cost,  net  of  accumulated 
depreciation.  Repairs  and  maintenance  and  any  gains  or 
losses on disposition are included in operations. 

Depreciation is computed using the straight-line method 
over the following estimated useful lives:

Buildings 

Machinery and equipment 

Furniture and fixtures 

3-40 years

3-15 years

3-7 years

Impairment of Long-Lived Assets
We  review  long-lived  assets  for  possible  impairment 
when  events  or  changes  in  circumstances  indicate,  in 
management’s judgment, that the carrying amount of an 
asset may not be recoverable. Recoverability is measured 
by a comparison of the carrying amount of an asset or asset 
group  to  its  estimated  undiscounted  future  cash  flows 
expected  to  be  generated  by  the  asset  or  asset  group.  If 
the  undiscounted  cash  flows  are  less  than  the  carrying 
amount of the asset or asset group, an impairment loss is 
recognized for the amount by which the carrying amount 
of the asset or asset group exceeds its fair value. 

Research and Development
The  costs  associated  with  research  and  development  for 
the  purpose  of  developing  and  improving  new  products 
are expensed as incurred. For the years ended December 
31, 2012, 2011, and 2010 research and development costs 
amounted to approximately $3.6 million, $4.8 million, and 
$3.6 million, respectively. 

Advertising
Advertising  costs  are  expensed  as  incurred.    Advertising 
expense for the years ended December 31, 2012, 2011, and 
2010 was approximately $0.9 million, $1.2 million, and $0.9 
million, respectively. 

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 and as an expense in cost of sales. For the years 
ended  December  31,  2012,  2011  and  2010  shipping  and 
handling  fees  amounted  to  approximately  $8.6  million, 
$8.7 million, and $8.6 million, respectively. 

Income Taxes 
Income taxes are accounted for under the asset and liability 
method. The Company recognizes deferred tax assets and 
liabilities  for  the  expected  future  tax  consequences  of 
temporary differences between the book carrying amounts 
and  the  tax  basis  of  assets  and  liabilities.    We  establish 
accruals for uncertain tax positions when it is more likely 
than  not  that  our  tax  return  positions  may  not  be  fully 
sustained.  The Company records a valuation allowance for 
deferred tax assets when, in the opinion of management, 
it  is  more  likely  than  not  that  deferred  tax  assets  will  not 
be realized. 

30

2012AnnuAl RepoRtStock Compensation
The  Company  recognizes  expense  for  its  share-based 
compensation based on the fair value of the awards that are 
granted. The Company’s share-based compensation plans 
provide  for  the  granting  of  stock  options,  and  restricted 
stock. The fair values of stock options are estimated at the 
date  of  grant  using  the  Black-Scholes  option  valuation 
model.  The  use  of  the  Black-Scholes  option  valuation 
model  requires  the  input  of  subjective  assumptions. 
Measured compensation cost, net of estimated forfeitures, 
is  recognized  ratably  over  the  vesting  period  of  the 
related  share-based  compensation  award.  Forfeitures  are 
estimated  based  on  the  Company’s  historical  experience. 
The  fair  value  of  restricted  stock  awards  is  determined 
based on the market value of the Company’s shares on the 
grant  date  and  the  compensation  expense  is  recognized 
on  a  straight-line  basis  during  the  service  period  of  the 
respective grant.

Financial Derivatives
The  Company  occasionally  uses  derivative  financial 
instruments to reduce its exposure to the risk of increasing 
commodity  prices.  Contract  terms  of  the  hedging 
instrument closely mirror those of the hedged forecasted 
transaction  providing  for  the  hedge  relationship  to  be 
highly  effective  both  at 
inception  and  continuously 
throughout  the  term  of  the  hedging  relationship.  The 
Company does not engage in speculative transactions, nor 
does the Company hold or issue financial instruments for 
trading purposes. 

The  Company  recognizes  all  derivatives  on  the  balance 
sheets  at  fair  value.  Derivatives  that  do  not  meet  the 
criteria  for  hedge  accounting  are  adjusted  to  fair  value 
through  income.  If  the  derivative  is  designated  as  a  cash 
flow  hedge,  changes  in  the  fair  value  are  recognized  in 
accumulated other comprehensive income (loss) until the 
hedged transaction is recognized in income. If a hedging 
instrument  is  terminated,  any  unrealized  gain  (loss)  at 
the  date  of  termination  is  carried  in  accumulated  other 
comprehensive income (loss) until the hedged transaction 
is  recognized  in  income.  The  ineffective  portion  of  a 
derivative’s change in fair value is recognized in income in 
the period of change.

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  and 
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.  

In  addition,  the  Company  presents  revenues  net  of  sales 
tax  and  net  of  certain  payments  to  our  independent 
(“Representatives”). 
manufacturer 
Representatives  are  national  companies  that  are  in  the 
business  of  providing  HVAC  units  and  other  related 

representatives 

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 $57.1 million, $51.6 million, and $51.4 million for each 
of  the  years  ended  December  31,  2012,  2011,  and  2010, 
respectively.  

Insurance Reserves 
Under  the  Company’s  insurance  programs,  coverage  is 
obtained for significant liability limits as well as those risks 
required to be insured by law or contract. It is the policy of 
the Company to self-insure a portion of certain expected 
losses  related  primarily  to  workers’  compensation  and 
medical liability. Provisions for losses expected under these 
programs are recorded based on the Company’s estimates 
of the aggregate liabilities for the claims incurred.

Product Warranties
A provision is made for the estimated cost of maintaining 
product  warranties  to  customers  at  the  time  the  product 
is sold based upon historical claims experience by product 
line. The  Company  records  a  liability  and  an  expense  for 
estimated  future  warranty  claims  based  upon  historical 
experience  and  management's  estimate  of  the  level 
of  future  claims.    Changes  in  the  estimated  amounts 
recognized in prior years are recorded as an adjustment to 
the liability and expense in the current year.

31

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, 
workers  compensation  accrual,  medical 
insurance 
accrual,  share-based  compensation  and  the  fair  value 
of derivative financial instruments.  Actual results could 
differ materially from those estimates.  

3.  ACCoUntS reCeiVABle
Accounts receivable and the related allowance for doubtful accounts are as follows:

Accounts receivable

Less: Allowance for doubtful accounts

Total, net

Allowance for doubtful accounts:

Balance, beginning of period

Provision for losses on accounts receivable

Accounts receivable written off, net of  recoveries

Balance, end of period

deCeMBer 31,

2012

2011

(in thousands)

$  43,918

(52)

$  43,866

$   34,405

(268)

$  34,137

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

$  268

         (83)

        (133)

$  52

$  600

$  776

         (289)

         (117)

        (43)

$  268

        (59)

$  600

32

2012AnnuAl RepoRt4.  inVentorieS
The components of inventories and the related changes in the allowance for excess and obsolete inventories are as 
follows:

Raw materials

Work in process

Finished goods

Less:  Allowance for excess and obsolete inventories

deCeMBer 31,

2012

2011

(in thousands)

$  28,155

$  31,746

2,757

2,065

32,977

(363)

 1,979

  1,523

35,248

(300)

Total, net

$  32,614

$  34,948

Allowance for doubtful accounts:

Balance, beginning of period

Provision for excess and obsolete inventories

Inventories written off

Balance, end of period

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

$  300

         63

        -

$  363

$  350

(50)

-

$  300

$  760

  -

 (410)

$  350

5.  note reCeiVABle
In connection with the closure of our Canadian facility on May 18, 2009 we sold land and a building in September 
2010 and assumed a note receivable from the borrower secured by the property. The $1.1 million, fifteen-year note 
has an interest rate of 4.0% and is payable to us monthly, and has a $0.6 million balloon payment due in October 
2025. Interest payments are recognized in interest income.

 We evaluate the note for impairment on a quarterly basis. We determine the note receivable to be impaired if we 
are  uncertain  of  its  collectability  based  on  the  contractual  terms.  At  December  31,  2012  and  2011  there  was  no 
impairment.

33

6.  SUppleMentAl CASH Flow inForMAtion

Supplemental disclosures:

Interest paid

Income taxes paid

Non-cash investing and financing activities:

Non-cash capital expenditures

Trade-in of equipment

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

$  44

         15,128

(3,670)

300

$  277

6,377

3,852

1,802

$  45

7,800

-

14

7.  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  $3.5 
million, $4.2 million and $4.5 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Changes in the warranty accrual are as follows:

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

Warranty accrual:

Balance, beginning of period

Payments made

Provisions

Adjustments related to changes in estimates

 $  6,093 

 (3,861)

 3,304 

 240 

 $  7,300 

 (5,387)

 5,146 

 (966)

Balance, end of period

 $  5,776 

 $  6,093 

 $  7,200 

 (4,405)

 3,987 

 518 

$  7,300 

8.  ACCrUed liABilitieS
At December 31, accrued liabilities were comprised of the following:

Warranty

Due to Representatives

Payroll

Workers’ compensation

Medical self-insurance

Customer prepayments

Employee benefits and other

Total

2012

2011

(in thousands)

 $  5,776 

 $  6,093 

 9,439 

 3,852 

 928 

 420 

 3,933 

 2,230 

 7,891 

 1,736 

 886 

 326 

 1,784 

 1,278 

 $  26,578 

 $  19,994 

34

2012AnnuAl RepoRtAt December 31, 2012, we were in compliance with our 
financial  covenants.  These  covenants  require  that  we 
meet  certain  parameters  related  to  our  tangible  net 
worth,  total  liabilities  to  tangible  net  worth  ratio  and 
working capital.  At December 31, 2012 our tangible net 
worth was $138.1 million, which meets the requirement 
of being at or above $95.0 million.  Our total liabilities 
to tangible net worth ratio was 0.4 to 1.0, which meets 
the requirement of not being above 2 to 1.  Our working 
capital was $51.9 million which meets the requirement 
of being at or above $40.0 million.  

9.  reVolVing Credit FACility
Our  revolving  credit  facility  provides  for  maximum 
borrowings  of  $30.0  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, 2012, were $29.1 million.  
Interest on borrowings is payable monthly at LIBOR plus 
2.5%.  No fees are associated with the unused portion of 
the committed amount.  As of December 31, 2012, we 
had no balance outstanding under our revolving credit 
facility and $4.6 million was outstanding at December 
31, 2011.  At December 31, 2012 and 2011, the weighted 
average interest rate was 2.8% and 3.4%, respectively.

10.  inCoMe tAxeS
The provision for income taxes consists of the following:

 Current 

 Deferred 

yeArS ending deCeMBer 31,

2012

2011

(in thousands)

2010

 $  18,896 

 (2,028)

 $  16,868 

$   (2,595)

 10,122 

 $  7,527 

 $  11,357 

 (558)

 $  10,799 

The provision for income taxes differs from the amount computed by applying 
the statutory federal income tax rate before the provision for income taxes.

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,

2012

2011

2010

 35%

 5% 

 (2)%

 38 %

 35%

 4 %

 (4)%

 35%

 35% 

 4% 

 (6)%

 33% 

35

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

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets 
and liabilities for financial reporting purposes and the amount used for income tax purposes. 

The significant components of the Company’s deferred tax assets and liabilities are 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

Share-based compensation

Other net

deCeMBer 31,

2012

2011

(in thousands)

 $  164 

 2,287 

 1,996 

 46 

 $  4,493 

 $  221 

 2,376 

 1,216 

 710 

 $  4,523 

$   (16,659)

 $  (18,802)

 653 

 274 

 648 

 364 

 $  (15,732)

$  (17,790)

We file income tax returns in the U.S., state and foreign 
income tax returns jurisdictions.   We are subject to U.S. 
examinations  for  tax  years  2010  through  2012,  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 2009 
through 2012. 

The  Company  evaluates  uncertain  tax  positions  for 
in  the  consolidated 
recognition  and  measurement 
financial  statements.  To  recognize  a  tax  position,  the 
Company  determines  whether  it  is  more  likely  than 
not  that  the  tax  positions  will  be  sustained  upon 
examination, including resolution of any related appeals 
or  litigation,  based  on  the  technical  merits  of  the 
position.  A tax position that meets the more likely than 
not threshold is measured to determine the amount of 
benefit  to  be  recognized  in  the  consolidated  financial 
statements.  The amount of tax benefit recognized with 
respect  to  any  tax  position  is  measured  as  the  largest 
amount of benefit that is greater than 50 percent likely 

of being realized upon settlement.  The Company had no 
uncertain tax positions that required recognition in the 
consolidated financial statements at December 31, 2012 
and 2011.  Any interest or penalties would be recognized 
as a component of income tax expense.

The  year  ended  December  31,  2011  resulted  in  a  net 
operating loss (NOL) of $4.6 million.  The full amount of 
the NOL is expected to be utilized with the filing of the 
2012 federal tax return.

On  January  2,  2013  the  American  Taxpayer  Relief 
Act  (ATRA)  of  2012  was  signed  into  law.  Some  of  the 
provisions were retroactive to January 1, 2012, including 
the extension of certain tax credits. The tax rate above 
reflects the tax law that was in place as of December 31, 
2012. Had the ATRA had been enacted prior to January 
1,  2013,  our  overall  tax  expense  would  have  been 
approximately $0.53 million lower at an overall effective 
rate of 37%. This $0.53 million difference will be reflected 
as a reduction in expense in the first quarter of 2013.

36

2012AnnuAl RepoRt11.  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 6.6 million shares to 
be  issued  under  the  plan  in  the  form  of  stock  options.  
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 
1,125,000  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.

The total pre-tax compensation cost related to unvested 
stock  options  not  yet  recognized  as  of  December  31, 
2012  is  $2.4  million  and  is  expected  to  be  recognized 
over a weighted-average period of 2.4 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, 
2012, 2011 and 2010 using a Black Scholes Model:

direCtorS And oFFiCerS

2012

2011

2010

Expected dividend yield

Expected volatility

Risk-free interest rate

Expected life (in years)

eMployeeS

Expected dividend yield

Expected volatility

Risk-free interest rate

Expected life (in years)

1.22%

47.54%

1.19%

7%

1.22%

45.99%

1.19%

8

N/A

N/A

N/A

N/A

 1.19%

 45.22% 

 1.41%

 8 

 1.53% 

 45.37% 

 2.63% 

 7% 

 1.53% 

 45.29% 

 2.44 %

 8 

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.   

37

The following is a summary of stock options vested and exercisable as of December 31, 2012:

rAnge oF
exerCiSe priCeS

nUMBer oF 
SHAreS

weigHted AVerAge
reMAining 
ContrACtUAl liFe

weigHted 
AVerAge exerCiSe 
priCe*

 $7.21 - 9.71 

 $10.21 - 12.97 

 $13.70 - 18.30 

Total

66,350 

135,050 

50,100 

251,500 

 2.86 

 5.22 

 7.86 

 5.12 

The following is a summary of stock options vested and exercisable as of December 31, 2011:

rAnge oF
exerCiSe priCeS

nUMBer oF 
SHAreS

weigHted AVerAge
reMAining 
ContrACtUAl liFe

weigHted 
AVerAge exerCiSe 
priCe*

 $6.45 - 7.21 

 $7.53 - 10.66 

 $10.75 - 13.79 

 $15.51 - 18.30 

Total

 81,850 

 153,900 

 114,200 

 16,200 

 366,150 

 2.42 

 5.00 

 5.13 

 8.50 

 4.62 

intrinSiC 
VAlUe

(in thousands)

 $  851 

 1,362 

 263 

 $  8.04 

10.78 

15.63 

 $  11.03 

 $  2,476 

intrinSiC 
VAlUe

(in thousands)

 $  1,111 

 1,682 

 957 

 74 

 $  6.91 

 9.56 

 12.12 

 15.91 

 $  10.05 

 $  3,824 

The following is a summary of stock options vested and exercisable as of December 31, 2010:

rAnge oF
exerCiSe priCeS

nUMBer oF 
SHAreS

weigHted AVerAge
reMAining 
ContrACtUAl liFe

weigHted 
AVerAge exerCiSe 
priCe*

 $6.45 - 7.21 

 $7.53 - 10.66 

 $10.75 - 14.28 

Total

 103,350 

 138,300 

 77,700 

 319,350 

 3.18 

 5.57 

 5.93 

 4.89 

 $  6.83 

 9.29 

 12.16 

$  9.19 

intrinSiC 
VAlUe

(in thousands)

 $  1,238 

 1,317 

 516 

 $  3,071 

38

2012AnnuAl RepoRtA summary of option activity under the plan is as follows:

optionS

SHAreS

Outstanding at December 31, 2011

Granted

Exercised

Forfeited or Expired

Outstanding at December 31, 2012

Exercisable at December 31, 2012

 653,050 

 301,575 

 (197,950)

 (13,000)

 743,675 

 251,500 

weigHted 
AVerAge 
exerCiSe priCe

 $  11.77 

 19.47 

 10.08 

 18.54 

 15.23 

 $  11.03 

The  total  intrinsic  value  of  options  exercised  during 
December 31, 2012, 2011 and 2010 was $4.0 million, $1.1 
million and $2.4 million, respectively.  The cash received 
from  options  exercised  during  December  31,  2012, 
2011  and  2010  was  $2.0  million,  $0.5  million  and  $1.2 
million, respectively.  The impact of these cash receipts 
is  included  in  financing  activities  in  the  accompanying 
Consolidated Statements of Cash Flows. 

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.

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.  
At  December  31,  2012,  unrecognized  compensation 
cost  related  to  unvested  restricted  stock  awards  was 
approximately  $0.837  million  which  is  expected  to  be 
recognized over a weighted average period of 2.2 years.

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

reStriCted StoCk

SHAreS

Unvested at December 31, 2011

Granted

Vested

Forfeited

Unvested at December 31, 2012

 37,350 

 45,550 

 (18,825)

 -   

 64,075 

weigHted 
AVerAge 
exerCiSe priCe

 $  20.65 

 18.21 

 19.20 

 -   

 $  18.16 

39

A summary of share-based compensation is as follows for the years ending December 31, 2012, 2011 and 2010:

grAnt dAte FAir VAlUe oF AwArdS dUring tHe period

2012

2011

2010

yeArS ending deCeMBer 31,

Options

Restricted stock

Total

 $  2,569 

 830 

 $  3,399 

(in thousands)

 $  632 

 325 

 $  957 

 $  799 

 330 

 $  1,129 

SHAre-BASed CoMpenSAtion expenSe

2012

2011

2010

Options 

Restricted stock

Total

inCoMe tAx BeneFit relAted to SHAre-BASed  
CoMpenSAtion

Options 

Restricted stock

Total

$   958 

 336 

 $  1,294 

(in thousands)

 $  389 

 291 

 $  680 

 $  446 

 345 

 $  791 

2012

2011

2010

(in thousands)

 $  154 

 57 

 $  211 

 $  370 

 23 

 $  393 

 $  334 

 22 

 $  356 

12.  eMployee BeneFitS
Defined Contribution Plan - 401(k) - We sponsor a defined 
contribution  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. 

Under  the  plan  the  Company  contributes  a  specified 
percentage  of  each  eligible  employee’s  compensation. 
In  addition,  the  Company  contributes  1.5%  of  eligible 
payroll  to  the  401(k)  plan  each  year.  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.  For  the  year  ended  December  31,  2012, 
2011  and  2010  we  made  matching  contributions  of 
$2.4  million,  $2.2  million  and  $1.7  million,  respectively. 
Administrative  expenses 
remained  consistent  at 
approximately  $0.1  million  for  the  years  ended  2012, 
2011 and 2010, respectively.

Profit  Sharing  Bonus  Plan  - We  maintain  a  discretionary 
profit  sharing  bonus  plan  under  which  10%  of  pre-tax 
profit 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  through  the  15th  of  the  third 
month following the calendar quarter and who work at 
least  80%  of  the  five  and  one-half  month  period.  Profit 
sharing expense was $4.9 million, $2.4 million and $3.8 
million  for  the  years  ended  December  31,  2012,  2011 
and 2010, respectively.

13.  SHAreHolderS’ eQUity
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 

40

2012AnnuAl RepoRt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 expired on August 20, 2012.

Stock Repurchase - On May 12, 2010, we completed a stock 
buyback program under a Board of Directors authorization 
dated  November  6,  2007.  As  authorized  we  repurchased 
a  total  of  2.7  million  shares  under  this  program  for  an 
aggregate  price  of  approximately  $36.1  million,  or  an 
average  price  of  $13.36  per  share.  We  purchased  these 
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 1.3 million shares) of our outstanding stock 
from  time  to  time  in  open  market  transactions.  Through 
June  28,  2010,  we  repurchased  a  total  of  approximately 
0.718 million shares for an aggregate price of $11.5 million, 
or an average price of $16.04 per share. We purchased the 
shares at current market prices. No purchases were made 
for the years ended December 31, 2012 and 2011.

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, 2012, we repurchased approximately 1.9 million shares 
for an aggregate price of $25.1 million, or an average price 
of  $13.38  per  share.  We  purchased  the  shares  at  current 
market prices.

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,  2012, 
we  repurchased  approximately  0.734  million  shares  for 
an  aggregate  price  of  $11.2  million,  or  an  average  price 
of  $15.25  per  share.  We  purchased  the  shares  at  current 
market prices.

Dividends - At the discretion of the Board of Directors we 
pay semi-annual cash dividends. Board approval is required 
to determine the date of declaration and amount for each 
semi-annual  dividend  payment.  The  Board  of  Directors 
approved dividend payments of $0.12 per share related to 
the 3-for-2 stock split effective on June 13, 2011. 

We  declared  dividends  to  shareholders  of  record  at  the 
close  of  business  on  June  11,  2012,  which  were  paid  on 
July  2,  2012.  At  a  meeting  of  the  Board  of  Directors  on 
November  7,  2012,  the  Board  declared  a  regular  semi-
annual  cash  dividend  of  $0.12  per  share,  and,  in  view  of 
our  strong  financial  position,  the  Board  also  declared  a 
one-time  special  cash  dividend  of  $0.12  per  share.  Both 
dividends were paid to shareholders of record at the close 
of business on December 3, 2012 and paid on December 
24, 2012.

We  paid  cash  dividends  of  $8.8  million,  $5.9  million  and 
$9.2 million in 2012, 2011 and 2010, respectively.

14. CoMMitMentS And ContingenCieS
We  are  subject  to  various  claims  and  legal  actions  that 
arise in the ordinary course of business. We closely monitor 
these claims and legal actions and frequently consult with 
our  legal  counsel  to  determine  whether  they  may,  when 
resolved,  have  a  material  adverse  effect  on  our  financial 
position or results of operations and accrue and/or disclose 
loss contingencies as appropriate. 

We  are  party  to  several  short-term,  cancelable  and 
occasionally  non-cancelable,  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 purchase and normal sales 
exemption.  

15.  new ACCoUnting 
pronoUnCeMentS  
In  June  2011,  the  FASB 
issued  ASU  No.  2011-05, 
Presentation  of  Comprehensive  Income  and  the  update 
to this standard was issued December 2011. This standard 
eliminates  the  option  to  report  other  comprehensive 
income  and  its  components  in  the  statement  of  changes 
in  equity.  The  amendment  requires  that  all  non-owner 
changes  in  stockholders’  equity  be  presented  either  in  a 
single  continuous  statement  of  comprehensive  income 
or  in  two  separate  but  consecutive  statements.  In  the 
two-statement  approach,  the  first  statement  should 
present  total  net  income  and  its  components  followed 
consecutively by a second statement that should present 
total  other  comprehensive 
income,  the  components 
of  other  comprehensive 
income,  and  the  total  of 
comprehensive income. The amendment must be applied 
retrospectively and is effective for fiscal years and interim 
periods within those years, beginning after December 15, 
2011. The adoption of this standard did not have a material 
effect on our consolidated financial statements.

41

16.  eArningS per SHAre 
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:
Basic weighted average shares

yeArS ending deCeMBer 31,

2012

2011

2010

(in thousands except share and per share data)

$  27,449

 $  13,986 

 $  21,894 

 24,550,113 

 24,689,852 

 25,198,166 

Effect of dilutive stock options and restricted stock

 149,104 

 191,294 

 141,227 

Diluted weighted average shares

 24,699,217 

 24,881,146 

 25,339,393 

eARnInGS peR ShARe:
Basic

Diluted

$  1.12 

 $  1.11 

 $  0.57 

$  0.56 

$  0.87 

$  0.87 

AntI-DIlutIve ShAReS :
Shares

Weighted average exercise price of anti-dilutive shares

 413,275 

$  18.54 

 171,250 

$  16.35 

 121,500 

 $  15.23 

42

2012AnnuAl RepoRt17.  QUArterly reSUltS (UnAUdited)
The following is a summary of the quarterly results of operations for the years ending December 31, 2012 and 2011:

2012
 Net sales 

 Gross profit 

 Net income 

 Earnings per share: 

Basic 

Diluted 

2011
 Net sales 

 Gross profit 

 Net income 

 Earnings per share: 

Basic 

Diluted 

QUArter

FirSt

SeCond

tHird

FoUrtH

(in thousands except share and per share data)

 $  64,957 

 $  83,333 

 $  76,816 

 $  78,008 

 13,518 

 4,567 

 0.19 

 0.18 

 21,103 

 9,297 

 0.38 

 0.38 

 17,149 

 6,007 

 0.24 

 0.24 

 18,729 

 7,578 

 0.31 

 0.31 

 $  59,913 

 $  69,076 

 $  73,829 

 $  63,402 

 11,638 

 3,650 

 0.15 

 0.15 

 11,737 

 3,839 

 0.16 

 0.15 

 14,259 

 5,626 

 0.23 

 0.23 

 8,647 

 871 

 0.04 

 0.04 

Higher  component  prices  adversely  affected  both 
gross margins and profits in the fourth quarter of 2011.  
Also,  the  Company  experienced  the  negative  effect  of 
manufacturing  inefficiencies  due  to  the  introduction 
of  new  products  and,  quite  significantly,  a  $1.8  million 
charge  to  earnings  caused  by  our  decision  to  replace 
approximately  50%  of  AAON’s  heavily-used  sheet  metal 
equipment to benefit from a Federal law allowing 100% 
depreciation  (for  tax  purposes)  of  qualified  capital 
expenditures  put  in  service  in  calendar  year  2011  and 
to  gain  greatly  improved  manufacturing  efficiencies  in 
2012 and beyond. The charge to earnings was caused by 
a pre-tax loss of $1.8 million on the trade in of the old 
equipment. The  new  equipment  is  state  of  the  art  and 
combines  the  latest  advancements  in  automation  and 
laser technology, in furtherance of our strategic vision to 
improve manufacturing efficiencies.

A number of additional one-time charges were incurred 
in the fourth quarter of 2011:

•	

Inefficient  sheet  metal  production  due  to  the 
changing  out  of  approximately  50%  of  our  capacity 
in  a  short  period  of  time  in  order  to  have  our  new 
equipment operable by the end of the year.

•	 Numerous costs expensed during the change out of 

the equipment.

•	

Inefficiencies in production due to lack of sheet metal 
parts in a timely fashion.

•	 Costs associated with relocating three assembly lines 

and rearranging two other assembly lines.

43

conSent oF InDepenDent   
ReGISteReD puBlIc  AccountInG FIRm

We have issued our reports dated March 14, 2013, with respect to the consolidated financial statements and internal 
control over financial reporting in the Annual Report of AAON, Inc. on Form 10-K for the year ended December 31, 
2012. 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 and File No. 333-151915). 

 ExHIBIT 23

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 14, 2013

44

2012AnnuAl RepoRt 
 
 
ExHIBIT 31.1

ceRtIFIc AtIon

I, Norman H. Asbjornson, certify that:

1. 

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

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

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

4. 

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

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

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

c) 

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

5. 

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

a) 

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

b)  any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a 

significant role in the registrant’s internal control over financial reporting.

Dated:  March 14, 2013 

/s/ Norman H. Asbjornson

Norman H. Asbjornson
Chief Executive Officer

45

 
 
I, Scott M. Asbjornson, certify that:

ceRtIFIc AtIon

1. 

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

ExHIBIT 31.2

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

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

4. 

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

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

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

c) 

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

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

5. 

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

a) 

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

b)  any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a 

significant role in the registrant’s internal control over financial reporting.

Dated:  March 14, 2013 

/s/ Scott M. Asbjornson

Scott M. Asbjornson
Chief Financial Officer

46

2012AnnuAl RepoRt 
 
ceRtIFIc AtIon puRSuAnt to
18 u.S.c. SectIon 1350,
AS Adopted pUrSUAnt to
SeCtion 906 oF tHe SArBAneS-oxley ACt oF 2002

 ExHIBIT 32.1

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 
31,  2012,  as  filed  with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the “Report”),  I,  Norman  H. 
Asbjornson, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 
906 of the Sarbanes-Oxley Act of 2002, that:

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

1934; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and 

our results of operations.

Dated: March 14, 2013 

/s/ Norman H Asbjornson

Norman H. Asbjornson 
Chief Executive Officer

47

 
 
 
 
 
 
 
 
ExHIBIT 32.2

ceRtIFIc AtIon puRSuAnt to
18 u.S.c. SectIon 1350,
AS Adopted pUrSUAnt to
SeCtion 906 oF tHe SArBAneS-oxley ACt oF 2002

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 31, 
2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Scott M. Asbjornson, 
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.

Dated: March 14, 2013 

/s/ Scott M. Asbjornson

Scott M. Asbjornson
Chief Financial Officer

48

2012AnnuAl RepoRt 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
oFFiCerS

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

kAtHy i. SHeFField has served 
as  Senior  Vice  President,  Admin-
istration,  of  the  Company  since 
2012 and Treasurer of the Company 
since 1999. Ms. Sheffield previously 
served  as  Vice  President  of  the 
Company  from  2002  to  2012,  and 
Accounting  Manager  of  the  Com-
pany from 1988 to 1999.

dAVid  e.  kneBel  has  served 
as  Senior Vice  President,  Sales  and 
Technology,  of  the  Company  since 
2012. Mr. Knebel previously served 
as  Vice  President  of  the  Company 
from 2005 to 2012, Director of Sales 
and  Technology  of  the  Company 
from  2002  to  2005  and  Manager 
of  Technology  and  Training  of  the 
Company  from  2001  to  2002.  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.

roBert g. FergUS has served 
as Vice President, Manufacturing, of 
the Company since 1988. Mr. Fergus 
has  been  in  senior  management 
positions  in  the  heating  and  air 
conditioning  industry  for  over  40 
years.

SCott  M.  ASBjornSon 
has  served  as  Vice  President, 
Finance,  and  CFO  of  the  Company 
since  2012.  Mr.  Asbjornson  began 
work  at  the  Company  in  1988  and 
previously  served  as  President  of 
AAON  Coil  Products  from  2010  to 
2012,  Vice  President  of  AAON  Coil 
Products  from  2000  to  2010  and 
General  Manager  of  AAON  Coil 
Products from 1996 to 2010.

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. 

49

BoArd oF direCtorS

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

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  dir-
ector 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

50

Thanks 
to oUr eMployeeS

Mohammad Abdallah
Maria Acosta
Andres Acosta-Lujan
Enriqueta Adame
Derrick Adams
Gary Adams
Rodney Adams
Ryan Adams
Timothy Adams
Brian Adkins
Maria Aguayo
Arturo Aguilar
Miguel Aguilera
Daniel Alagdon
Frankie Alagdon
Martha Alanis
Javier Alba
Julio Albino
James Alexander
Shannon Alford
Nader Al-Hashmi
Donald Allen
Kevin Allen
Earl Alston
Luis Alvarado De La 

Cruz

Michael Amburgey
Sarah Andersen
Sarah Andersen
Elbert Anderson
Jose Andrada
Fannie Andrews
Margarito Angeles
Wesley Anselme
Price Anson
Latisha Anthony
Alfredo Antonio
Daniel Aponte
Lorenzo Aragon
Nohemi Aranda
Clyde Archer
Uriel Arellano Guerra
Jose Arguelles
Jose Argumedo Ruiz
Thomas Armer, Jr.
Rondell Armstrong
Maria Arredondo
Gerardo Arroyo
Norman Asbjornson
Scott Asbjornson

David Ashlock
Gary Ashmore
Dwight Austin
Joseph Avila
Orlando Ayala
William Ayers
Nora Backus
Richard Backus
Dwight Baker
Eric Baker
John Baldwin
Miguel Barajas
Carolyn Barber
Ray Barber
Candy Barbosa
Gregory Barker, Jr.
Justin Barlett
David Barnett
Ana Barragan De 

Alteneh

Nereyda Barrios De 

Perez
Rosa Barro
Teresa Barron
Phillip Basham
Michael Bass
Stuart Baugh
Aaron Beavers *
Daniel Beck
Lionel Beckman
Bonnie Benson
James Berden
Ida Bermudez
Sergio Beserra
John Bia
Timothy Bingham
Christopher Birdsong
Vickie Black
Steven Blackbird
Brian Blackmon
Debbie Blackmon
Trever Blakney
Maria Blanco
David Blevins
Justin Blevins
Nicholas Bobbitt
Gene Boese
Kim Boih
Michael Boney
Dale Booher

Rosendo Botello
Lewis Bovee, Jr.
Dujuan Bowie
Tomandre Bowman
Demetrius Boyd
John Boyd
Brian Bradford
Myoshia Bradley
Christopher Brantley
Arlando Brewer
Shahani Britt
Kwynce Brookins
Arlunda Brooks
David Brown
Timonthy Brown
Johnny Brown, Jr.
Christopher Bryant
William Bryant
Jason Bunnell
Scott Burgess
Trevor Burke
Kelli Burkes
Monica Burns
Lavar Burton
Wayne Bush
Verenice Bustos
Beatrice Butler
Rosa Butler
Konnor Buxton
David Bya
Scott Byrd
Michael Cable
Janibal Cabudoy
Alejandro Cadena
Jesus Cadenas
Cleveland Cage, Jr.
Margarito Calderon
Jorge Calixto
Elizabeth Calvillo
Lazaro Cama
Maria Camacho
David Campbell
Arthur Candler
Don Canterbury
Yong Cantrell
Refugio Carachure
Billy Carder
Justin Cardoza
Lisa Carriero
Vincent Carson

Larry Carter, Jr.
Sulma Castaneda
Hector Cazares
Nicolas Ceballos Trujillo
Elvis Cerda
Francisco Cervantes
Guadalupe Chairez-

Galan

Jonathan Chapman
Patrick Chapman
Joshua Chattillon
Francisco Chavero
Edgar Chavez
Gregory Chavez
Ramiro Chavez
Jose Chavez Perez
Dale Cherry
Daniel Cherry
Adan Chicas
Clifton Childers
Awi Ciang
Man Ciin
Hau Cin
Kam Cin
Kham Cin
Sian Cin
Thang Cin
Tg Cin Za Khai
Cing Cing
Dim Cing
Man Cing
Nem Cing
Justin Claiborne
George Clark
John Clark
Samuel Clark, Jr.
Stephanie Cleveland
Troy Cleveland
Brenda Coats
David Cochran
Kenneth Cochran
Troy Cockrum
Michael Coffelt
Arthur Cole
Ronald Collins
Tim Collinsworth
Aaron Columbus
Dale Conkwright
Michael Conley
Jude Connolly

51

Mark Cook
Timothy Cook
Michael Coolidge
Scott Coon
Donna Coonfield
Allen Cooper *
James Cooper
Alvis Copeland
Pablo Cordova Cordova
Elaine Corkhill
Roberto Corona
Genoveva Corona De Rivera
Rosa Cortez
Jonathan Coti
Billy Cox
Jerry Cox
Robert Cox
Adrian Crabtree
Richard Craite
Steven Crase
Juan Crespo-Maisonet
Mikel Crews
Darrell Crow
Carolyn Crutchfield
Victory Cullom, II
Robert Cummings
Christopher Cunneen
Gene Curtis
Kevin Cyrus
Hau K. Dal
Hau S. Dal
Gwendolyn Daniels
John Daniels
Justin Daniels
Charles Dauster
Jenifur Davidson
Byron Davis
Cameron Davis
Carolyn Davis
Cathy Davis
Chester Davis
Darryl Davis
Eric Davis
Jerry Davis
Marleitta Davis
Rhonda Davis
Richard Davis
Samuel Davis
Susan Davis
Trenton Davis
Cookie Davison
Yoana De La Torre
Alvaro De Leon Mendoza
Pedro De Los Santos, Jr.

Freddie Deboe
Pong Dee
Bobby Degraffenreid
Ismael Delapaz
Martha Delarosa Molina
Eva Delatorre
Juana Delobo
Andres Delos Santos
Raquel Deluna
Shiira Demery
Demario Dennis
Bruce Derr
Jermein Devers
Audencia Devilla
Roy Deville
Charles Deweese
Anthony Diaz
Ciin Dim
Hau Dim
Lakeitra Dixon
Rickey Dodson
Edreys Dominguez
Sol Dominguez
Thang Dop Mui
Shundrika Draper
Thomas Dreadfulwater
Esmeralda Duarte
Cathryn Dubbs
Linda Dunec
Charles Dunn
Ralph Durbin
Randy Dwiggins
Wendell Easiley
Jeffrey Easter
Harvey Ellis
Austin Embry *
Carlos Encarnacion
Gregory English
Tinisha English
John Enochs
Eva Enriquez
Benjamin Epp
Steven Ervin
Daisy Escalante
Teresa Escobedo
Norberto Esparza-Torres
Leonardo Espinoza Flores
Jesus Estrada-Gonzalez
Benjamin Estrelles
Stephen Etter
Gilda Etumudor
Gareth Evans
Joshua Everett
Reginald Everidge, Jr.

Chad Evers
Shawn Fairley
Blake Faluotico
Keith Farmer
Jeffrey Fath
Richard Faust
Amy Fehnel
Robert Fergus
Catalina Fernandez
Fabiola Fernandez
Samuel Fields
Thomas Fierros
Jesse Figueroa
Christian Figueroa Mauras
Sterlyn Finch
Anthony Fisher
Bruce Fisher
Chad Fisher
Anthony Fizer
Copotenia Fletcher, Jr.
Carolina Flores
Efigenia Flores
Juana Flores
Laura Flores
Ruby Floyd
Vicky Floyd
Mark Fly
Sharon Fontenot
Eric Ford
Gregory Foreman
Sheila Forrest
Alex Foster
Bradley Foster
Christopher Foster
Frederick Foster
Ramon Fourshey
Loretta Fowlkes
Kenneth Foyil
Phillip Frank
Damion Franklin
Warren Franklin
Revonda Franks
Matthew Frederick
Olga French
Angel Frias
Brandon Frick
Berry Friend
Eric Friend
Wade Fuller
Rony Gadiwalla
Curtiss Gaines
Ranulfo Galicia
Maria Galindo
John Gall

Shayla Galland
Josue Gallegos
Belinda Galvan
Ma Galvan
Andrez Garcia
Angel Garcia
Jose Garcia
Roger Garcia
Wuilson Garcia Alvarado
Isidro Garcia Arriaga
Yesica Garcia Barreto
Norma Garibay
James Garrison
Michael Geeter
James George
Gaspar Gerena
Petr Getmanenko
Aaron Gilbert
Jaimon Gilstrap
Penny Glossinger
Celia Gomez
Jose Gomez
Maria Gomez
Raquel Gomez
Maria Gomez Medina
Daniel Gomez-Sigala
Adrian Gonzalez
Consuela Gonzalez
Imelda Gonzalez
Marisela Gonzalez
Raul Gonzalez
Scott Goodson
Dale Graham
Hasson Granado
Buenaventura Granados-

Rubios
Michael Gray
Ba Great
John Griffin
Kevin Griffin
Ronald Grimes
Daniel Groff
Jackie Grubb
Rodolfo Guevara
Carolina Guillen
Ronald Guinn
Georgina Guzman
Jack Hagan *
Joshua Halfpap *
Dennis Hall
Jack Hall
Kelly Hall
Koren Hall
Stephen Hall

Scott Hamilton
Otis Hamilton
Jeffrey Hammer
Sam Hammoud
Joseph Hampton, Jr.
Mung Hang
Natasha Harris
Stacey Harris
Marcus Harry *
Robi Hartmann
Heather Haskins
Troy Hatfield
Neng Hau Lian
Kevin Hawkins
Willie Hawkins
Billy Hawley, Jr.
Justin Heck
Bret Hedrick
Tim Hefflin
Cody Helscel
Antonio Henderson *
Daniel Henderson
Kyle Hendrick
Kevin Henson
Edith Heredia De Birrueta
Armando Hernandez
Blanca Hernandez
Corcina Hernandez
Josue Hernandez
Lily Hernandez
Luis Hernandez
Maria Hernandez
Mariano Hernandez
Jahel Herrera
Christopher Herrin *
Mark Heston
Brandon Hicks
Ronald Hicks
Takeo Higa
Brenda Higgins
Larry Highfield
Dewayne Hightower
Cortez Hill
Latasha Hill
Marcus Hill
Alberto Hinojosa
Juan Hinojosa
Tyson Hinther
Bon Hoang
Samuel Hobson
Donna Holloway
Lawrence Honel
Stephen Hoover
Kevin Horn *

52

Terri Horn
Stanley Horton
David Howard
Larry Howard
James Howell, II
Do Ngaih Huai
Nuam Huai
Kaitlynn Hubbs
Lydia Hudson
Philip Hudson
Anthony Huffman
Jimmy Hughes
Fiona Humphrey
Larry Humphrey
Jade Hurst
Ronald Hutchcraft
Gary Hutchins
Cindi Hutton *
Tan Huynh
Okechukwu Ibeh
Alexander Ignatenkov *
Samuel Ingram
Tim Ingram, Sr.
Belinda Jackson
Jeff Jackson
Levita Jackson
Demetrica Jacobs
Jose Jamaica
Joseph Jelinek, Jr.
Genelle Jimboy
Pedro Jimenez-Delfin
Samuel Jimison
Frederick Jimmerson
Aaron Johnson
Ashley Johnson
Ed Johnson
Holly Johnson
Mark Johnson
Cheryl Jones
Danny Jones
David Jones
Dean Jones
Demareo Jones
Djuan Jones
Henry Jones
Jeremy Jones
Karrington Jones
Raymon Jones
Remia Jones
Rose Jones
Timothy Jones
James Jones, Jr.
Jason Jordan
Rodney Jordan

Sean Jordan
Jaime Juarez
Leandro Jumelles Nunez
Garrett Kaiser
Patrick Kaiser
Do Kam
Hau Kam
Khual Kam
Ngin Kam
Thawng Kam
Dal Khan Kap
Dal Suan Kap
Gin Kap
Lian Kap
Thang Kap
Brian Kastl
Adam Kauffman
Eryn Kavanaugh
Tuang Kawi
Kenneth Kawuma
Aaron Kelly
Brian  Kelsey
Gregg Kennedy
Sean Kennedy
Ronald Kenney
Antony Khai
En Khai
John Khai
Kham Khai
Mang Khai
Nang Khai
Pau Khai
Peter Khai
Peter Khai
Thang H. Khai
Thang S. Khai
Thawng Khai
Vuum Khai
Go Kham
Mung Kham
Ngun Kham
Cin Khin
Niang Khoi
Hau Khual
Khai Khual
Mung Khual
Thang L. Khual
Thang S. Khual
Za Khual
Cin Khup
Dai Khup
Deih Khup
Kap Khup
Kham Khup

Lang Khap
Lian Khap
Nang Khap
Ngin Khup
Pau Khup
Thang Sian Khup
Thang Suan Khup
Tuan Khup
Alan Kilgore
Andrew Kilgore
Cin Kim
Cing Kim
Hau Kim
Kap Kim
Thang D. Kim *
Thang T. Kim
Thang Z. Kim
Dennis Kimbrough
Gene King
Joseph King
Lori King
Randy King
Russell King
Roger Kinkade, Jr.
David Knebel
Stephanie Knight
Christian Knox
Robert Knuth
Scott Koscheski
James Koss
Robert Krafjack
Larry Kreps
Mikhail Krupenya
Thu Kun Hen
Ricky Kurin
Laura Kyle *
Phillip Lafond
Giang Lai
Do Lal
Sei Lal
Thang Lal
George Lam
Mang Lam
Cole Lambert
Deborah Lane
Donald Laney
Gin Lang
Kap Lang
Pum Lang
Kap Langh
Thawng Langh
Martin Larsen
Michael Lavallee
Bill Lawson

Jeffrey Lawson
Ronald Lawson
Walter Lazcano
Anh Le
Lai Le
Rickey Leatch
Jules Lebel
Michel Lebel
Jose Lebron
David  Lee
Gralind Lee
Jacqueline Lee
Rhonda Lee
Kevin Lee, Jr.
Matthew Leeper *
Hugo Lerma
Boy Let
Cynthia Leyva
Awi Lian
Dal Lian
Do Lian
Gin Lian
Hau Lian
Kam Lian
Sang Lian
Sing Lian
Tha Lian
Thang C. Lian
Thang D. Lian
Thang K. Lian
Tuan Lian
Ping Lin
Israel Linares
Jerry Lincoln
Thomas Lincoln
William Lindsay
Jerome Linwood
John Livingston *
Jonathan Lockmiller
John Lopez
Margarito Lopez
Rafael Lopez
Rebecca Lopez
Thomas Lopez
Jason Lovett
Paul Lowery
Oscar Lozano
Ralph Lucas
Jarrod Ludlow
Quannah Ludlow
Cing N. Lun
Cing Ngai Lun
Dim Lun
Lu Lun

Mariana Luna
Ryan Luna
Joshua Lundy
Kelly Lybarger *
Jimmy Mabry
Gregory Mack
Sherenda Mack
Keith Mackey, Jr.
Jorge Madrigal
Tam Mai
David Main
Carlos Malone
Jeffrey Maly
Ciin Man
Cing Man
Maria Mancilla
Dai Mang
Dal Khan Mang
Dal Kim Mang
En Mang
Gin Mang
Kam Mang
Kham Mang
Kham L. Mang
Khup Mang
Lian Mang
Nang Mang
Ngin Mang
Sian Mang
Thang Kim Mang
Thang Lian Mang
Vung Mang
Ngam Manlun
Adam Mansfield
Zacchary Marinis
William Markwardt
Ma Marquez De-Gilbreath
Ana Marroquin
Errol Marshall *
Parker Martel
Cassandra Martin
Jerrad Martin
Juan Martinez
Karen Martinez
Miguel Martinez
Mosses Martinez
Obdulia Martinez
Hector Martinez Molina
Florentino Martin-Romo
Timothy Marvin
Timothy Marvin, Jr.
Thomas Masengale, Jr.
Beverley Mason
James Mason

53

Charles Mattocks, IV
Ron Mauch
Antonio Mauricio
Leonard Maxwell
Duane Mayfield
Marcus Mayfield
Latoya Mays
Courtney McAfee
Deborah McAteer
Tina McBeath
Robert McBowman
Shemaal McCain
Robert McCleary
Dirk McClellan
Daniel McClure
Michael McConnell
Roy McConnell
Corey McCowan
Debra McCowan
Wesley McCowan, Jr.
Paula McCrary
Michael McCuin
Kathy McCulloch
Vickie McCullum
Loyd McDaniel
Randall McDaniel
Sharon McDaniel
Karen McDow
James McElroy
Deborah McFarlin
Lacy McGrew
Mark McIllwain
Michael McIllwain
Domingo McKnight
Gina Means
J Medina Olvera
Angel Medrano
Jericho Melendez
James Melton
Silvestre Mendez 

Gonzales

Edwin Mendez Orozco
Kevin Merideth
Dale Michelson
Glenn Milam
Michael Miles
Ranulfa Milian
Chris Miller
Mykea Miller
Brian Mingle
Scarlett Miranda
Orlando Mitchell
Wayne Mitchell
Johnny Mize, Ii

Jay Modisette
Ronald Modlin
Irma Moguel
Tammy Mohaupt
Braulio Moises-Lee
Biasney Mojica 
Castaneda
Jose Molina
Jose Monreal
Enoc Montes
Mario Montes Avina
Jerome Montgomery, Jr.
Jon Moody
Herbert Moore
James  Moore
Kashonda Moore
Marc Moore
Maria Moore
Tony Moore
Alfonso Moran
Tony Morehead
Berta Moreno
Erasmo Moreno Medina
Jason Moretz
Matthew Morgan
Myron Morgan
Desron Morrow
Marcus Morrow *
Phillip Moss, Jr.
Clayton Mote
Stephanie Mounce
Seth Mowery
Do Muang
Cleve Mulder
Eric Mulliniks
Dal Mung 
En Mung
Gin L. Mung
Gin S. Mung
Hau Mung
Kai Mung
Khai Mung
Khup Mung
Lang Mung
Lian Mung
Suaan Mung
Suan G. Mung
Suan S. Mung
Thang K. Mung
Thang S. Mung
Vum Mung
Vung Mung
Gabriel Muniz Gonzalez
Jesus Munoz

Eduardo Murillo-Munoz
David Myers
LaHarry Myers
Krystal Nail
Sing Nang *
Thomas Nang
Marcus Naranjo
Jose Nava
Maria Nava
Abel Navejas
Clayton Neal
Mark Neal
Samuel Neale
Natalie Neilson
Ronald Nelson
Ciin Neu
Robert Neu
Cing Ngaih
Tha Nge
Haunung Ngin Pi
Duong Nguyen
Gam Nguyen
Hoang-Chi Nguyen
Phuoc Nguyen
Thanh Nguyen
Cing Niang
Dim L. Niang
Dim N. Niang
Go Niang
Karen Niles-Blayer
Thang No
Christopher Norfleet
Willie Norfleet
Robert Norfleet, Jr.
Eric Norris
Debra Nothnagel
Tumai Npawt
Ning Nuam
Zen Nuam
Let Nung
John Nutt
Deangelo Oakley
Joey O’brien
Thomas O’brien
Alexander Ofosu
Rickey Ogans
John Ogle
Maria Olivas De Torres
Kejuan Oliver
Scotty Oliver
Anthony Oliveras
Eric Olson
Sunday Omasere
John Ondinyo

James O’Neill, Jr.
Benjamin Orme
Christina Orona
Leticia Orona
Margarita Orona
Maria Orona
Margarita Orozco 

Dehuizar

Carlos Orozco-Torres
David Osborne
Ofelia Osuna
Jennifer Overmeyer
Martin Ozura-Carrillo
Gerard Pacheco
Guillermo Pacheco
Luis Pacheco
Mark Page
Edmundo Paiz
Julianne Palmer
Michael Palmer
Candido Palomo
J Paniagua
Corey Parten
Jason Pate
Jeanetta Pate
Cesar Patino
Corry Patterson
Kenneth Pattinson
Chin Pau
Cia Pau
Ciang Pau
Dal Pau
Gin S. Pau
Gin Sian Pau
Gin Suan Pau
Go Pau
Kam L. Pau
Kam S. Pau
Kam Sian Pau
Langh Pau
Lian Pau
Liang Pau
Nang  Pau
Neng Pau
Thang Pau
Zam Pau
Justin Paulson
Travis Pearson
Vladimir Peniaz
Cesar Perez
Rudy Perez
Sergio Perez
Ma Lourdes Perez 

Perez

54

John Peters
Ladrue Peters
Michael Peterson
Daniel Peurifoy
Kinh Pham
Randy Phelps
Alexander Phillips
Brandon Phillips
Lance Phillips
Michael Phillips
Ronnie Phillips
Alexander Phomprida
Thang Pi
Tuang Pi
Goh Piang
Khup Piang
Thang K. Piang
Thang L. Piang
Thang Lamp Piang
Van Piang
Zam Piang
Christopher Pickens
Shedrica Pickett
Wanda Pickett
James Pierson, Jr.
Pedro Pina-Valles
Jose Pineda
Clifford Pitchford
Susanne Poindexter *
Ashish Pokhrel
Basant Pokhrel
Renu Pokhrel *
Mark Pool
Timothy Pool
Javorus Poole
Richard Porter
Rudy Powell
Greg Powers
Jeffery Powers
Jose Prado
Kenneth  Prentice, Jr.
Eric Prickett
Markiese Propes
Joshua Pruett
Lian Pu
Sian Pu
Alma Puga
Daniel Puga, Jr.
Thang Puno
Darrell Purser
Javier Quezada
Jesus Quinones
Nimalakirthi Rajasinghe
Adrian Ramirez

Antonia Ramirez
Raymon Ramirez
Samuel Ramirez
William Ramirez
Nandy Ramirez B
Gemma Rangeloff
Robert Ratliff
Kyle Ratzlaff
Charles Ratzloff
Terry Ratzloff
Robert Rayno
Thomas Read
Sandra Reader
Diego Rebollar-Marin
Peggy Redden
Stephen Redman
James Reed
Freeman Reed, Jr.
Cameron Reese
Tiffany Reese
Margaret Reeves
Lloyd Reichert
Alberto Rendon Parra
Rodolfo Renteria
Svyatoslav Reshetov
Thomas Reynolds
Daniel Rhoades
Gene Rice
James Rice
Robert Riddell
Angela Rideout
Brett Riegel
Brian Riggs
Delmecio Riser
Stephen Riser
James Ritchie
Hillary Rite
Jesus Rivera, Jr.
John Roberts
Markus Robinson
William Robinson, Jr.
Alex Rodriguez
Diana Rodriguez
Francisco Rodriguez
Gilberto Rodriguez
Hector Rodriguez
Maria Rodriguez
Martin Rodriguez
Rebecca Rodriguez
Rivelino Rodriguez
Jesus Rodriguez 
Santibanez
J Rodriguez-Flores
Don Rogers

Jake Rogers
Samantha Rogers *
Tony Rogers
Lidia Rojas
Nelson Rojas
Marvin Rolland
Terry Rombach
Oscar Rose
Catherine Ross
Lane Ross
Richard Rowe, Jr.
Wendell Rowland
Thomas Royal
Ricardo Ruiz
Vicente Ruiz
Ava Russell *
Jimmy Russell
John Russell
Kimberly Russell
Maverick Sadler
Adan Salazar
Alberto Salazar
Nora Salazar
Walter Salazar
David Saldivar
Maria Saldivar
Miguel Saldivar
Victor Saldivar
Jose Saldivar Orepeza
Alejandro Salinas
Diana Salinas
Jessica Samaroo
Beatriz Sanchez
Hector Sanchez
Tara Sanchez
Esperanza Sanchez 

Ruiz

Luis Sanchez-Lopez
Christina Sanders
Tanisha Sanders
Michael Sandor, Jr.
Cin Sang
Thiam Sang
Agustin Santana
Jorge Santana Francis
Wenceslao Santiago
Harold Santiago Torres
Carlos Santiago Torrez
Ignacio Santillan
Pedro Santillan
Angela Santillano
Rebecca Sar
Erick Sawyer
Frank Scanlon

William Scharosch
Brummett Scott
Kenneth Scott
Donald Scott, Sr.
Vivian Scroggins
Ku Sei
Let Sei
Maria Serrano De 

Torres

Carrol Shackelford
Douglas Sheehan
Kathy Sheffield
Terry Shelly
Brandon Shelton
Vasiliy Shemereko
Kathleen Shepard
Jackie Shephard
Lynnda Shepherd
Todd Shook
Nelson Sierra
Cory Simmons
Dwayne Simpson
James Simpson, II
Daai Sing
Kap Sing
Mang Sing
Nang Sing
Thang Sing
Thawn Sing
Amy Siviero *
Michael Skinner
Ian Slattery
Debi Sloan
Mekissa Sloan
Larry Slone
Raymond Slovacek
Brett Smith
David Smith
Emily Smith
Jordan Smith
Owen Smith
Renaldo Smith
Ricardo Smith
Ryan Smith
Sweetie Smith
Billy Smith, II
Robert Smith, II
Wilbert Smith, Jr.
Robert Smithson
Kap So Te
Showe Soe
Jose Solares
Malcolm Soles
Maria Solis

55

Nemisia Solis
Kevin Souvannasing
Denney Sowder
John Spain, III
Ronnie Sparks
Elda Spears
Jameson Spires
Michael Sportel
Michael Srader
Lawana Stane
Daniel Stanislawski
Larry Stanton
Vincent  Steadman
Shannon Sterns
Crystal Stevens
Brent Stockton
Harvey Stoddard
Kevin Stoddard
Scott Stoltzfus
Chase Stone
Edwin Stone
Michael Straub
Daniel Strelow
Billy Strength
Hau Suan
Khup Suan
Thang Suan
Zen Suan
Nang Sum
Victor Sum
Pau Sut
Jack Sweet
Eric Sypert
Kam Ta
James Taber
Go Tang
Ryan Tankersley
William Tankersley
Joe Tart
Larry Tate
Mark Tate *
Tenna Tatum
Mung Tawng
Charles Taylor
Deborah Taylor
Eric Taylor
Michael Taylor
Andrea Teakell
Kevin Teakell
Robert Teis
Ngin Teng
Xien Thach
Cin Thang
Cin L. Thang

Cin Lian Thang
Cin M. Thang
Dai Thang
Dal Thang
Go Thang
Go C. Thang
Go Z. Thang
Hau Thang
Kam K. Thang
Kam S. Thang
Kam Suan Thang
Kham Thang
Let Thang
Lian Thang
Mang Thang
Ngo Thang
Pau K. Thang
Pau S. Thang
Pau Z. Thang
Suan Thang
Thawng Thang
Tual Thang
Tuan L. Thang
Tuan S. Thang
Lian Thang Lam
Lal Thari
Kham Thawn
Suan Thawn
Thang Thawn
Lang Thawng
Zam Thawng
Gerald Thomas
John Thomas
Lee Thomas
Pastasia Thomas
Richard Thomas
Cheryl Thomason
Archie Thompson
Rebecca Thompson
Michael Thornton
Tuan Thung *
Jessica Thurber
Ted Tiger
Go Tin
Gabriela Tirado
William Tobar
Christopher Toles
Breny Tornes
Reinaldo Torres
Travis Traeger
Heip Tran
Tuong Tran
Marisol Trejo
Martin Trevino-Saldana

Mark Tribble
Ha Trinh
Juanito Tronzon
Kam Tuang
Kham Tuang
Sing Tuang
Suum Tuang
Thang Tuang
Thang L. Tuang
Thang Z. Tuang
Tun Tuang
Vung Tuang
Zam Tun
Gin Tung
Kaam Tung
Thang Tung
Thawng Tung
Paul Turbe
David Turley
Charles Turner
Phyllis Tyiska
James Tyler
Jacob Tzang
Jesus Tzul
Ni Uk
Pernell Underwood
Colton Upchurch
Tony Urich
Maria Urquiza
Yadira Urquiza
Allen Vang
Sua Vang
John Vanness
Shawn Vawter
Juan Vazquez
Mercedes Vela Casanova
Antonio Velasco
James Velde
Juan Vences
Angel Venegas
Salome Vera
Laura Vergara
James Verhamme
George Verrett
Timothy Vetting
Teresa Victory
Efrain S. Villa
Efrain Sanchez Villa
Selina Viramontes
Cuong Vo
Suong Vo
Tong Vo
Thu Vu Nguyen
Jovan Vucovich

Houa Vue
Lian Vum
Mary Vung
Ning Vung
Kayla Wadding
Joseph Wahl
Stephen Wakefield
Whitney Wakefield
Diana Walker
Joshua Walker
Patrick Walker
Roderick Walker
David Walkup
Barry Wall
Dale Wallace
Gary Wallace
Kim Wallace
Todd Wallingford
Leslie Wallis, Jr.
Darius Walters
Joseph Walton
Gayle Ward
Perry Warner
Anthony Washington
Donna Washington
Joseph Washington, IV
Steven Watkins
Kyle Webb
Anthony Welch
Jerremy Welch
Sharon West
Deborah Whitaker
Mike Whitaker
Sheila Whitaker
Johnny Whitaker, Jr.
Allyn White
James White
Randy White
Timothy White
David Whitlock
Steven Whorton
Christopher Wiles
Jackie Wiles
Jerry Wiles
Michael Wiles
Richard Wilkerson
Matthew Wilkins *
Sherri Wilkins
Stanley Wilkins
Duane Wilkinson
James Wilkinson
Barbara Williams
Chante Williams
Cheray Williams

Jaboriece Williams
Kristy Williams
Latrenia Williams
Robert Williams
Rodney Williams
Billy Williams, II
Aaron Williamson
James Williamson
Jeremy Williamson
Brandi Wilson
Daniel Wilson
Isaac Wilson
James Wilson
Jonathan Wilson
Thomas Wingo
Wanda Winkfield
Micah Wisdom
Jack Witt, Jr.
Stanley Womack, Jr.
Brandon Wood
Curtis Wood *
Ronald Wood
Kasey Worthington
Westley Wright
Berry Wyers
Jim Wyrick
Linda Wyrick
Ector Yancey, Jr.
Patrial Yarbrough
Buel York, II
Eddie Young
Keith Young
Marc Young
Patricia Young
Nikolay Zagorodniy
Lang Zah Lang
Aurora Zavaleta
Luis Zepeda
Juan Zermeno
Virginia Zermeno

* Pictured

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

56

AAon, Inc.
2425	South	Yukon	Avenue	•	Tulsa,	OK	74107
918.583.2266	•	Fax:	918.583.6094

AAon coil products, Inc.
203	Gum	Springs	Road	•	Longview,	TX	75602
903.236.4403	•	Fax:	903.236.4463

www.AAon.com