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AAON

aaon · NASDAQ Industrials
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Ticker aaon
Exchange NASDAQ
Sector Industrials
Industry Construction
Employees 1001-5000
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FY2013 Annual Report · AAON
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Y E A R S

of

Growth

DEDICATED TO MAKING THE NEXT 25 YEARS AS PROSPEROUS AS THE FIRST.

2013 ANNUAL REPORT

Celebrating 25 Years
Over the past 25 years our company has achieved 
monumental sales, income and total stockholders’ 
equity growth. In 2013, net sales and net income 
were  both  record  highs  at  $321  million  and  $38 
million, respectively. By continuing to invest in our 
capabilities, we are dedicated to making the next 
25 years as prosperous as the first.

2013 ANNUAL REPORT

COMPANY PROFILE

ROOFTOP UNITS

OUTDOOR AIR  
HANDLING UNITS

CONDENSING 
UNITS

RL SERIES

RN SERIES

RQ SERIES

RL SERIES

PACKAGED OUTDOOR MECHANICAL ROOMS

SELF-CONTAINED UNITS

BL SERIES
BOILER

LL SERIES
AIR-COOLED CHILLER

LN SERIES

SA SERIES

LC SERIES 
AIR-COOLED CHILLER

LL SERIES 
EVAPORATIVE-COOLED CHILLER

SB SERIES

INDOOR AIR HANDLING UNITS

RN SERIES

RQ SERIES

COILS

BOOSTER, HYDRONIC, & DX

CL SERIES

CN SERIES

CC SERIES

CB SERIES

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

2013

2012

2011

2010

2009

Income Data ($000 except per share data)
Net Sales

$ 321,140

Gross Profit 

Operating Income

Interest Income (Expense)

Depreciation

Pre-Tax Income

Net Income

Earnings Per Share

Basic1

Diluted1

$ 89,792

$ 55,825

$ 221

$ 12,312

$ 56,294

$ 37,547

$ 1.02

$ 1.01

Balance Sheet ($000 except per share data) 

 $ 303,114 

 $ 266,220 

 $ 244,552 

$ 245,282

 $ 70,499 

 $ 44,234 

 $ 42 

 $ 13,407 

 $ 44,317 

 $ 27,449 

 $ 46,281 

 $ 22,169 

 $ (179)

 $ 11,397 

 $ 21,513 

 $ 13,986 

 $ 55,188 

 $ 32,715 

 $ 213 

 $ 9,886 

 $ 32,693 

 $ 21,894 

 $ 67,545 

 $ 43,754 

 $ 62 

 $ 9,061 

 $ 43,892 

 $ 27,721 

 $ 0.75 

 $ 0.74 

 $ 0.38 

 $ 0.37 

 $ 0.58 

 $ 0.58 

 $ 0.72 

 $ 0.71 

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 splits in July 2013 and June 2011 
2 = Cash & cash equivalents + receivables/current liabilities.

$ 77,294

$ 113,623

$ 87,283

$ 105,142

$ 12,085

 $ 51,921 

 $ 91,546 

 $ 90,695 

 $ 96,929 

 $ 3,159 

 $ 45,700 

 $ 84,387 

 $ 93,502 

 $ 85,935 

 $ 13 

 $ 55,502 

 $ 91,748 

 $ 67,418 

 $ 86,307 

 $ 2,393 

 $ 65,354 

 $ 96,240 

 $ 59,896 

 $ 80,567 

 $ 25,639 

$ 215,444

 $ 193,493 

 $ 178,981 

 $ 160,277 

 $ 156,211 

$ 36,329

 $ 39,625 

 $ 38,687 

 $ 36,246 

 $ 30,886 

-

-

-

-

 - 

$ 164,106

 $ 138,136 

 $ 122,504 

 $ 116,739 

 $ 117,999 

$ 4.43

 $ 3.73 

 $ 3.28 

 $ 3.07 

 $ 3.03 

$ 53,592

$ (31,326)

$ (13,340)

$ 8,926

 $ 51,167 

 $ 26,484 

 $ 32,152 

 $ (30,335)

 $ (24,538)

 $ (28,276)

 $ 45,205 

 $ (9,639)

 $ (17,686)

 $ 3,146 

 $ (4,326)

 $ (2,380)

 $ (27,200)

 $ (10,101)

 $ (23,246)

 $ 25,370 

24.8%

18.4%

17.5%

11.7%

0.3

2.5

3.1

31

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 

2013 ANNUAL REPORTPRESIDENT’S LETTER

DEAR STOCKHOLDER,This past year was a momentous one for AAON. The Company celebrated its twenty-fifth year in  business and, on September 30, a group representing management and the Board of Directors was invited to ring the opening bell on The NASDAQ Stock Market. Furthermore, for the second consecutive year, the Company posted record sales and earnings as sales climbed 5.9% and net income increased 36.9%. This performance was accomplished despite the continuing unevenness in construction activity, both in the commercial (private) and institutional (public) sectors. Our sales performance benefited from a continuing gain in our market share as customers responded positively to our technologically innovative product line. In addition, the Jobs Relief Unemployment Insurance Reauthorization and Job Creation Act signed into law in December, 2010, allowing 100% depreciation for qualified capital expenditures in calendar 2011 was extended into 2012, and again into 2013, with the latter two years being at a rate of 50%. Our replacement business, which we estimate to be just over 50% of our total sales in 2013, benefited from this extended tax benefit. Furthermore, we continued to concentrate on improving and expanding our sales force by adding personnel and broadening our training programs. Finally, in July, we declared a 3-for-2 stock dividend, our fifth such action in the past 12 years. We also increased our annual cash dividend 25% to $0.20 per share from $0.16 per share.SALES AND EARNINGS Sales for the year ended December 31, 2013, increased to $321.1 million compared with $303.1 million in 2012. During the past year we put in place price increases of 3-4%. This increase had a beneficial impact on sales; but more importantly, we witnessed a 5.4% gain in unit growth which enabled the Company to post a total sales increase of 5.9%.Gross profit increased to $89.8 million (28.0% of sales) from $70.5 million (23.3% of sales), or by 27.4%. Our gross profit performance last year not only benefitted from our increased sales and declining raw material prices but also from the continuing improvement in manufacturing productivity.SG&A expenses climbed 29.3% to $34.0 million (10.6% of sales) from $26.3 million (8.7% of sales). Warranty expenses, reflecting both higher sales and modest increases in warranty claims, combined with rising salaries, benefits and higher “profit sharing” costs, impacted this category. Nevertheless, operating income increased to $55.8 million (17.4% of sales) from $44.2 million (14.6% of sales) 2013 ANNUAL REPORTrepresenting an increase of 26.2%. Net income rose to $37.5 million (11.7% of sales), or $1.01 per share, from 

$27.4  million  (9.0%  of  sales)  or  $0.74  per  share. The  tax  rate  in  2013  was  33.3%  vs.  38.1%  in  the  previous 

year. Our per share calculations are based upon 37.1 million fully diluted shares outstanding in 2013 and 37.0 

million fully diluted shares outstanding in 2012 and reflect a 3-for-2 stock dividend in July, 2013.

STRONG FINANCIAL CONDITION
Our financial condition at December 31, 2013, continued to be quite strong. Cash and investments were $49.9 

million (including $37.8 million of short-term certificates of deposit and corporate bonds, all maturing within 1 

or 2 years). Total current assets were $113.6 million, with a current ratio of 3.1:1. Our capital expenditures were 

$9.0 million and we paid dividends of $7.4 million. Once again, we operated free of debt. Total stockholders’ 

equity  increased  18.8%  to  $164.1  million,  or  $4.43  per  diluted  share.  Our  return  on  average  stockholders’ 

equity was 24.8%.

350,000

300,000

250,000

200,000

150,000

100,000

50,000

0

AAON: 25 YEARS OF FINANCIAL PERFORMANCE

2013 Net Sales = 321.1 M
2013 TSE = 164.1 M
2013 Net Income = 37.5 M

1989 Net Sales = 31.3 M
1989 TSE = 0.6 M
1989 Net Income = 0.2 M

‘89 ‘90 ‘91 ‘92 ‘93 ‘94 ‘95 ‘96 ‘97 ‘98 ‘99 ‘00 ‘01 ‘02 ‘03 ‘04 ‘05 ‘06 ‘07 ‘08 ‘09 ‘10 ‘11 ‘12 ‘13

Net Sales ($000)

Total Stockholders' Equity ($000)

Net Income ($000)

Total Stockholders' Equity is the net worth of a company. It represents the stockholders' claim to the assets after all creditors 
and debts have been paid. Stockholders’ equity is derived substantially from Retained Earnings, which are the accumulated 
profits a business has retained and not paid out to stockholders as dividends.

25 YEAR AVERAGE ANNUAL SALES GROWTH = 10% 

25 YEAR AVERAGE ANNUAL NET INCOME GROWTH = 24%

25 YEAR AVERAGE STOCKHOLDERS' EQUITY GROWTH = 26%

CAPITAL EXPENDITURES
Over  the  past  five  years  (2009-2013)  we  made  total  capital 

expenditures of $86.3 million for purchases of land and machinery 

as well as to expand and renovate our manufacturing facilities.

During the past year, we witnessed continued improvement in our 

manufacturing  productivity.  This  improvement  was  influenced 

“IN DECEMBER, 

by  a  significant  capital  expenditure  program  ($35.9  million) 

in  2011,  whereby  we  replaced  approximately  50%  of  our  sheet 

THE COMPANY 

metal  fabricating  machinery  with  more  efficient  and  reliable 

equipment, and we relocated and expanded three assembly lines 

ANNOUNCED 

while rearranging two others. 

Our capital expenditures in 2013 were $9.0 million, of which $2.0 

million was directed to plant and land expansion. The remainder 

was  for  machinery,  including  the  purchase  of  a  new  metal 

fabricating  machine  for  our  Longview,  Texas,  facility.  For  2014, 

we have budgeted capital spending in the area of $12-14 million. 

We  anticipate  approximately  30-40%  of  these  expenditures  will 

be  allocated  toward  plant  expansion  and  renovation,  with  the 

remainder going to machinery purchases.

A MASTER PARTS DISTRIBUTOR
In late 2012, we completed construction of a 200,000 square foot 

warehouse (at a total cost of $12.0 million) to 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.  It  will  enable  the  Company  to  significantly 

accelerate  its  growth  plans  for  this  business.  In  addition,  AAON 

opened its first retail store located in Tulsa in May of this past year. 

This  store  serves  local  contractors,  technicians  and  a  variety  of 

other customers needing HVAC parts and supplies.

The  replacement  parts  inventory  includes  certain  products 

manufactured by AAON, such as coils from our Longview facility, 

as  well  as  a  selection  of  component  parts  which  are  purchased 

from various manufacturers.

THAT AAON COIL 

PRODUCTS, INC., ITS 

SUBSIDIARY LOCATED 

IN LONGVIEW, TEXAS, 

RECEIVED THE 

EMPLOYER AWARD 

OF EXCELLENCE FOR 

THE WORKFORCE 

SOLUTIONS EAST 
TEXAS AREA.” 

2013 ANNUAL REPORT“OVER THE PAST 

THREE YEARS 

WE HAVE SPENT 

$13.6 MILLION ON 

RESEARCH AND 

DEVELOPMENT 

AND INTEND 

TO CONTINUE 

TO INVEST 

AGGRESSIVELY IN 

THE DEVELOPMENT 

OF NEW 

PRODUCTS AND 
IMPROVEMENTS.” 

AAON  will  take  advantage  of  sizeable  discounts  offered  on  large 

purchases  while  offering  its  representatives  a  varied  selection  of 

well-priced  parts  combined  with  quick  delivery  (24-48  hours)  to 

accommodate their customers.

Last  year,  part  sales  gained  17.9%  and  contributed  approximately 

4.9%  of  total  Company  sales.  By  the  end  of  2013,  we  had  enlisted 

approximately  25%  of  our  manufacturer’s  representatives  to  begin 

stocking  OEM  parts  locally  which  will  drive  the  success  of  our  parts 

distribution  program.  We  expect  parts  sales  to  witness  excellent 

growth  over  the  intermediate  and  longer  terms  as  more  of  our 

representatives begin to acknowledge the sales and profit potential 

of  this  incremental  business  which  carries  profit  margins  above  the 

company  average.  For  the  current  year,  we  expect  to  increase  the 

number  of  stocking  representatives  by  an  additional  25%.  These 

newly recruited representatives will be integrated gradually over the 

year. Nevertheless, we expect to witness annual sales growth in this 

business of 20% or better in 2014 and beyond.

RESEARCH AND DEVELOPMENT AND NEW 
PRODUCT INTRODUCTION
In order to maintain our position as a technological leader in the HVAC 

industry, we remain devoted to our research and development effort. 

Over  the  past  three  years  we  have  spent  $13.6  million  on  research 

and development and intend to continue to invest aggressively in the 

development of new products and improvements.

Last  year,  we  introduced  the  CN  Series  condensing  units  available 

from 55 to 140 tons. These products have all of the standard features 

of AAON equipment in addition to variable speed scroll compressors 

and many selectable options.

We  also  introduced  the  LN  Series  chillers  and  outdoor  mechanical 

rooms  available  from  45-140  tons.  Similar  to  the  CN  Series,  this 

equipment  has  all  of  the  standard  AAON  features  with  selectable 

options  such  as  factory  installed  pumping  packages  and  variable 

speed condenser fans.

RECOGNITIONS
In September, AAON’s SB Series indoor self-contained unit (3-18 tons) was named 2013 Product of the Year-Bronze 

in the HVAC/R Category by Consulting-Specifying Engineer magazine. This magazine is a monthly publication with 

a circulation of over 46,000 mechanical, electrical and plumbing (MEP) engineers.

In December, the Company announced that AAON Coil Products, Inc., its subsidiary located in Longview, Texas, 

received  the  Employer  Award  of  Excellence  for  the  Workforce  Solutions  East  Texas  area.  This  award  honors 

employers that are involved with their local workforce board and have made a positive impact on employees and 

the community.

SALES REPRESENTATIVE PERFORMANCE
In January 2013, the Company kicked off its sales year by hosting an AAON Product Exhibition BBQ and Rodeo in 

Mesquite, Texas, a few days prior to an industrial HVAC convention in Dallas. This invitation only event was attended 

by all of the AAON sales representative offices, along with their best customers. It enabled us to showcase all of our 

newest and most innovative products. We believe that over 3,000 people attended this event and the feedback we 

received was excellent.

Our  manufacturer’s  representative  organization  posted  strong  sales  gains  during  the  past  year  despite  the 

lackluster, lethargic atmosphere surrounding construction spending. This network, made up of 82 independent 

representative organizations which operate 113 offices in all 50 states and Canada, contributed over 95% of our 

total sales in 2013. 

We continue to reinforce and expand the training program for our representatives so they can better communicate 

the numerous new features and benefits of AAON products. We took further steps to improve and enlarge the 

network by replacing some underperforming offices and encouraged the addition of personnel in other offices. 

We believe our representative network will continue to play a major role in AAON’s future growth.

2013 ANNUAL REPORTOUR EMPLOYEES
We strive to retain and motivate our employees in a manner consistent with stockholder interests. The initial 

step in this process is to share the profitability of the Company. We distribute 10% of pre-tax profits equally to 

nearly all personnel. 

Through the investment of company contributions, employees in our 401(k) plan now own nearly 4% of the 

Company’s outstanding stock. This ownership allows employees to benefit, along with other stockholders, 

from share appreciation and encourages AAON’s longer-term focus. The ownership through the 401(k) plan, 

cumulatively,  is  the  sixth  largest  stockholder.  On  October  1,  2013,  we  increased  the  automatic  company 

contribution and raised the available company match while lowering the required employee deferral necessary 

to obtain the full match. These changes are increasing retirement readiness for participants by making it easier 

for all employees to receive the retirement funds available from the company. Although our intent is to ensure 

retirement preparedness for all plan participants, the 401(k) program encourages employee longevity through 

vesting requirements and the reallocation of participant forfeitures equally among remaining participants. 

Lastly, we have begun a process of incorporating equity as a component of compensation for a larger number 

of employees than has been done in the past. Presently, including shares allocated to the Board of Directors 

and Executives, this represents an amount equal to nearly 3% of the company’s outstanding stock. It is our 

expectation  that,  as  we  continue  to  build  equity  participation  among  our  employees,  we  will  increasingly 

align the interests of employees with those of stockholders while rewarding longevity.

We  view  our  employees  as  an  investment  in  skills,  talent  and  knowledge.  We  believe  that  our  approach 

to  employment  increases  stockholder  value  by  creating  a  culture  of  employee  ownership  while  helping 

employees meet their personal financial and career development goals.

OUTLOOK
Over the past 25 years we have transitioned from a small, entrepreneurial company with a limited customer base 

to a nationally recognized manufacturer of HVAC systems. The breadth and depth of our current management 

team have enabled us to establish a strong base of sales and profits as well as a solid financial condition. Over 

the past decade we have maintained an aggressive capital expenditure and research and development policy 

which has enabled the Company to produce some of the most technologically advanced, energy efficient 

products in the industry. Our strong financial condition and free cash flow allows us to maintain our pursuit 

of continued growth.

We  are  fully  aware  that  our  past  performance  and  future  aspirations  could  not  have  been  and  will  not  be 

attained without the commitment and cooperation of our customers, sales representatives and stockholders 

as well as the continuing support of our employees, all of whose names appear at the end of this report.

We  look  at  our  past  achievements  with  great  satisfaction  and  to  our  future  accomplishments  with  great 

expectations.

Sincerely,

Norman H. Asbjornson
President & CEO
March 24, 2014

2013 ANNUAL 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.

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

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

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

December

Purchased 40 acres with 457,000 

square foot plant and 22,000 square 

foot office space located across from 

Tulsa facility.

November

AAON yearly shipments exceed $100 

million. Received U.S. patent for 

Dimpled Heat Exchanger Tube.

Fall

Expanded rooftop product line to 

230 tons. Introduced evaporative 

condensing energy savings feature.

Fall

Industry introduction of the 

modular air handler and 

chiller products.

Spring

Completed Tulsa, Oklahoma, and 

Longview, Texas, plant additions yielding 

a total exceeding one million square feet.

October

AAON listed in Forbes’ 200 

Best Small Companies.

1988 

1989 

1990 

1991 

1992 

1993 

1994 

1995 

1996 

1997 

1998 

1999 

2000 

2001 

2002 

2003

August 
AAON, an Oklahoma 
Corporation, was founded.

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.

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

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

October
AAON listed in Forbes’ 200 
Best Small Companies.

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

September
AAON received U.S. 
Patent for DPAC.

April 
AAON introduced 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.

2003 

2004 

2005 

2006 

2007 

2008 

2009 

2010 

2011 

2012 

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.

October

Consulting-Specifying 

Engineer magazine awards 

Geothermal RQ Series 

Product of the Year - Silver.

December

AAON yearly 

shipments exceed 

$300 million.

December

AAON named top 

Tulsa area stock 

value.

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 Valuable 
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 donated high efficiency 

equipment to ABC’s Extreme

Makeover: Home Edition.

July

Geothermal RQ Series wins 

Silver in ACHR News Dealer 

Design Competition.

July

AAON SB Series Self Contained 

Unit wins ACHR News Dealer 

Design Award - Gold.

Single Zone VAV rooftop units 

win Honorable Mention in 

ACHR News Dealer Design 

Competition.

May

Opening of AAON Parts 

& Supply Store.

3-for-2 stock split.

AAON increases dividend

payment by 25%.

April

AAON received U.S. patent for 

Blower Housing assembly.

October

U.S. patent granted to AAON 

for air conditioner with 

energy recovery heat wheel.

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 named 

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.

June

National Society of Professional 

Engineers awarded RQ Series 

High Efficiency Rooftop Unit 

"Product of the Year."

3-for-2 stock split.

August

AAON added to Standard & 

Poor’s Small Cap 600 Index.

May

AAON increases dividend 

payment by 13%.

January

Outdoor mechanical 

room extended to 540 

tons of capacity.

Spring

Industry introduction of light 

commercial geothermal heat pump 

self contained unit product line.

October

AAON listed in Forbes 

Magazine’s “Hot Shots 200 Up & 

Comers.” AAON listed in Forbes’ 

200 Best Small Companies.

September

3-for-2 stock split.

June

3-for-2 stock split.

September

Consulting-Specifying 

Engineer magazine awarded 

RN Series E Cabinet Product 

of the Year - Bronze.

September

25th Anniversary

AAON rings opening 

bell at NASDAQ.

Consulting-Specifying Engineer 

magazine awarded SB Series  

Product of the Year - Bronze.

2013 

2014

Spring

AAON purchased, renovated and 

moved into a 184,000 square foot 

plant in Tulsa, Oklahoma.

September

One-for-four reverse stock 

split. Retired $1,927,000 of 

subordinated debt.

September

Purchase of John Zink Air 

Conditioning Division.

Introduced a new product line 

of rooftop heating and air 

conditioning units 2-140 tons.

December

Formed AAON Coil Products, 

a Texas Corporation, as a 

subsidiary to AAON, Inc. 

(Nevada) and purchased coil 

making assets of Coils Plus.

A TIMELINE OF SUCCESS

March

Purchased property with 26,000 square 

foot building adjacent to AAON Coil 

Products plant in Longview, Texas. 

Issued a 10% stock dividend.

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

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

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

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

October
AAON listed in Forbes’ 200 
Best Small Companies.

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

1988 

1989 

1990 

1991 

1992 

1993 

1994 

1995 

1996 

1997 

1998 

1999 

2000 

2001 

2002 

2003

August 

AAON, an Oklahoma 

Corporation, was founded.

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.

November

Listed on the NASDAQ 

National Market System.

Spring

AAON Coil Products purchased, 

renovated and moved into a 

110,000 square foot plant in 

Longview, Texas.

September

Completed expansion of the 

Tulsa facility to 332,000 

square feet.

January

Introduced a desiccant heat 

recovery wheel option available  

on all AAON rooftop units.

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

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

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

September
3-for-2 stock split.

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.

April 

AAON introduced factory engineered 

and assembled packaged mechanical 

room, which includes a boiler and all 

piping and pumping accessories.

October

AAON listed in Forbes’ 200 

Best Small Companies.

May

Purchased 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.

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 Small Cap 600 Index.

May
AAON increases dividend 
payment by 13%.

October
RN series rooftop unit named 
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.

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

3-for-2 stock split.

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

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
25th Anniversary

AAON rings opening 
bell at NASDAQ.

Consulting-Specifying Engineer 
magazine awarded SB Series  
Product of the Year - Bronze.

2003 

2004 

2005 

2006 

2007 

2008 

2009 

2010 

2011 

2012 

2013 

2014

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.

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

December
AAON yearly 
shipments exceed 
$300 million.

December
AAON named top 
Tulsa area stock 
value.

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 Valuable 

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 donated high efficiency 
equipment to ABC’s Extreme
Makeover: Home Edition.

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

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

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

May
Opening of AAON Parts 
& Supply Store.

3-for-2 stock split.

AAON increases dividend
payment by 25%.

2013 ANNUAL REPORTUNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K*

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

For the fiscal year ended December 31, 2013

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        [X ]  No

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

[   ]  Yes        [ X ]  No

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

[ X ]  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).

[ X ]  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     [ X ]
Smaller reporting company 

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

[   ]  Yes        [ X ]  No

The aggregate market value of the common equity held by non-affiliates computed by reference to the closing price of registrant’s 
common stock on the last business day of registrant’s most recently completed second quarter June 30, 2013 was $617.3 million.

As of March 1, 2014, registrant had outstanding a total of 36,687,591 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 20, 2014, are incorporated into Part III.

* As amended on Form 10-K/A as filed on March 27th, 2014

 
 
 
 
 
 
 
 
           
 
 
TABLE OF CONTENTS

Item Number and Caption 

Page Number

PART I

1.  Business. 

1A. Risk Factors. 

1B.  Unresolved Staff Comments. 

2.  Properties. 

3.  Legal Proceedings. 

4.  Mine Safety Disclosure. 

PART II

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

Matters and Issuer Purchases of Equity Securities.  

6.  Selected Financial Data. 

7.  Management’s Discussion and Analysis of Financial Condition 

and Results of Operations. 

7A. Quantitative and Qualitative Disclosures About Market Risk. 

8.  Financial Statements and Supplementary Data. 

9.  Changes in and Disagreements with Accountants on 

Accounting and Financial Disclosure. 

9A. Controls and Procedures.  

9B.  Other Information. 

PART III

10.  Directors, Executive Officers and Corporate Governance. 

11.  Executive Compensation. 

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

13.  Certain Relationships and Related Transactions, and  

Director Independence. 

14.  Principal Accountant Fees and Services.  

PART IV

15.  Exhibits and Financial Statement Schedules. 

1

5

8

8

8

8

9

12

12

22

22

45

46

48

48

48

48

48

48

49

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,  ("AAON  Nevada")  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 Nevada and our subsidiaries.

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

Products and Markets

Our products serve the commercial and industrial new construction and replacement markets. To date, our 
sales have been primarily to the domestic market. Foreign sales accounted for approximately $17.5 million, 
$16.2 million and $13.6 million of our sales in 2013, 2012 and 2011, respectively.

Our  rooftop  and  condensing  unit  markets  primarily  consist  of  units  installed  on  commercial  or  industrial 
structures  of  generally  less  than  ten  stories  in  height.  Our  air  handling  units,  self-contained  units,  chillers, 
outdoor mechanical rooms 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.

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 six to 18 months. Housing starts, in turn, are affected by such 
factors as interest rates, the state of the economy, population growth and the relative age of the population. 
When new construction is down, we emphasize the replacement market.

1

Based on our 2013 level of sales of $321.1 million, we estimate that we have approximately a 15% share of 
the rooftop market and a 1-3% share of other markets. Approximately 55% of our sales were generated from 
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 and cooling in 
a  self-contained  cabinet,  referred  to  in  the  industry  as  "unitary  products”.  Our  other  finished  products  are 
chillers,  outdoor  mechanical  rooms,  coils,  air  handling  units,  condensing  units,  makeup  air  units,  energy 
recovery units and self-contained units.

We offer three groups of rooftop units: the RQ Series, consisting of five cooling sizes ranging from two to six 
tons; the RN Series, offered in 27 cooling sizes ranging from six to 140 tons; and the RL Series, which is offered 
in 21 cooling sizes ranging from 40 to 240 tons.

We also offer the SA and SB Series as indoor packaged, water-cooled or water-source heat pump units with 
cooling capacities of three to 70 tons.

We  manufacture  a  LC  Series  chiller,  air-cooled,  a  LN  Series  chiller,  air-cooled,  and  a  LL  Series  chiller  and 
packaged  outdoor  mechanical  room,  which  are  available  in  both  air-cooled  condensing  and  evaporative-
cooled configurations, covering a range of three to 540 tons. BL Series boiler outdoor mechanical rooms are 
also available with 500-6,000 MBH heating capacity.

We offer four groups of condensing units: the CB Series, two to five tons; the CC Series, two to 63 tons; the CN 
Series, 55 to 140 tons; and the CL Series, 45 to 230 tons.

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

Our energy recovery option applicable to our RQ, RN and RL units, as well as our M2 and M3 Series air handling 
units, 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 two to 540 tons and in heating 
capacity from 69,000 to 9,000,000 BTUs. 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% or more of our sales during 2013, 2012 or 2011.

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.

2

2013 ANNUAL REPORTSourcing of raw materials may be impacted in the future by the Dodd-Frank Wall Street Reform and Consumer 
Protection Act (the "Dodd-Frank Act") that contains provisions to improve transparency and accountability 
concerning  the  supply  of  certain  minerals,  known  as  "conflict  minerals",  originating  from  the  Democratic 
Republic of Congo and adjoining countries. As companies begin implementing the requirements adopted 
by  the  Securities  and  Exchange  Commission  ("SEC")  in  response  to  the  provisions  in  the  Dodd-Frank  Act, 
availability of materials that contain conflict minerals may be affected.

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 six to 18 months. We expect to receive 
delivery of raw materials from our fixed price contracts for use in our manufacturing operations.

Representatives

We  employ  a  sales  staff  of  20  individuals  and  utilize  approximately  82  independent  manufacturer 
representatives'  organizations  (“Representatives”)  having  113  offices  to  market  our  products  in  the  United 
States and Canada. We also have one international sales organization, which utilizes 12 distributors in other 
countries. Sales are made directly to the contractor or end user, with shipments being made from our Tulsa, 
Oklahoma, and Longview, Texas, plants to the job site.

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

To support and service our customers and the ultimate consumer, we provide parts availability through our 
sales offices. We also have factory service organizations at each of our plants. Additionally, 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.

Warranties

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 ten 
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.

The Company also sells extended warranties on parts for various lengths of time ranging from six months to 
ten years. Revenue for these separately priced warranties is deferred and recognized on a straight-line basis 
over the separately priced warranty period.

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 Research and Development ("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  $5.2  million,  $3.6  million,  and  $4.8  million  in  2013, 
2012 and 2011, respectively.

3

Backlog

Our backlog as of March 1, 2014 was approximately $48.8 million compared to approximately $51.1 million as 
of March 1, 2013. The current backlog consists of orders considered by management to be firm and generally 
are filled on average within approximately 60 to 90 days after an order is deemed to become firm; however, 
the orders are subject to cancellation by the customers.

Working Capital Practices

Working capital practices in the industry center on inventories and accounts receivable. Our management 
regularly reviews our working capital with a view 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 and had a zero balance at December 31, 2013. We believe that we will have 
sufficient funds available to meet our working capital needs for the foreseeable future.

Seasonality

Sales of our products are moderately seasonal with the peak period being July - November of each year due 
to timing of construction projects being directly related to warmer weather.

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, 2014, we employed 1,431 permanent employees. Our employees are not 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 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.

4

2013 ANNUAL REPORTAvailable Information

Our Internet website address is http://www.aaon.com. Our annual reports on Form 10-K, quarterly reports 
on  Form  10-Q,  current  reports  on  Form  8-K  and  amendments  to  those  reports  filed  or  furnished  pursuant 
to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, will be available free of charge 
through our Internet website as soon as reasonably practicable after we electronically file such material with, 
or furnish it to, the SEC. The information on our website is not a part of, or incorporated by reference into, this 
annual report on Form 10-K.

Copies of any materials we file with the SEC can also be obtained free of charge through the SEC’s website at 
http://www.sec.gov, at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549, or by 
calling the SEC at 1-800-732-0330.

Item 1A. Risk Factors.

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

Our business can be hurt by economic conditions.

Our  business  is  affected  by  a  number  of  economic  factors,  including  the  level  of  economic  activity  in  the 
markets in which we operate. Sales in the commercial and industrial 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 which could impact 
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 to 18 months 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  limit  the  impact  of  price  fluctuations  on  commodities  by  entering  into  non-
cancelable fixed price contracts with our major suppliers for periods of six to 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 using hedge accounting since they meet the normal purchases and sales 
exemption.

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 achieve new technological advances in the HVAC industry. Our inability to continue 
to successfully develop and market new products or our inability to implement 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.

5

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, which could 
have an adverse affect 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.

Our business is subject to the risks of interruptions by problems such as computer viruses.

We depend upon information technology 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 laws increases our costs of doing business. Because these laws are subject to frequent change, 
we are unable to predict the future costs resulting from environmental compliance.

6

2013 ANNUAL REPORTWe are subject to potentially extreme governmental regulations.

We  always  face  the  possibility  of  new  governmental  regulations  which  could  have  a  substantial  or  even  extreme 
negative effect on our operations and profitability. Negotiations during the summer of 2013 mitigated some of the 
negative effects of the DOE Final Rule, Regulatory Identification No. 1904-AC23, published on March 7, 2011. However, 
some additional testing and listing requirements are still in place and will be phased in over the next two years.

In  addition,  several  other  intrusive  component  part  governmental  regulations  are  in  process.  If  these  proposals 
become final rules, the effect would be the regulation of compressors and fans 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.

The  Dodd-Frank  Wall  Street  Reform  and  Consumer  Protection  Act  contains  provisions  to  improve  transparency 
and  accountability  concerning  the  supply  of  certain  minerals,  known  as  "conflict  minerals",  originating  from  the 
Democratic Republic of Congo and adjoining countries. As a result, in August 2012, the SEC adopted annual disclosure 
and reporting requirements for those companies who use conflict minerals in their products. Accordingly, we began 
our reasonable country of origin inquiries in fiscal year 2013, with initial disclosure requirements beginning in May 
2014. There are costs associated with complying with these disclosure requirements, including for due diligence to 
determine the sources of conflict minerals used in our products and other potential changes to products, processes or 
sources of supply as a consequence of such verification activities. The implementation of these rules could adversely 
affect the sourcing, supply and pricing of materials used in our products. As there may be only a limited number of 
suppliers offering “conflict free” conflict minerals, we cannot be sure that we will be able to obtain necessary conflict 
minerals from such suppliers in sufficient quantities or at competitive prices. Also, we may face reputational challenges 
if we determine that certain of our products contain minerals not determined to be conflict free or if we are unable to 
sufficiently verify the origins for all conflict minerals used in our products through the procedures we may implement.

We are subject to adverse 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.

We are subject to international regulations that could adversely affect our business and results of operations. 

Due to our use of representatives in foreign markets, we are subject to many laws governing international relations, 
including  those  that  prohibit  improper  payments  to  government  officials  and  commercial  customers,  and  restrict 
where we can do business, what information or products we can supply to certain countries and what information we 
can provide to a non-U.S. government, including but not limited to the Foreign Corrupt Practices Act, U.K. Bribery Act 
and the U.S. Export Administration Act. Violations of these laws, which are complex, may result in criminal penalties 
or sanctions that could have a material adverse effect on our business, financial condition and results of operations.

Operations may be affected by natural disasters.

Natural  disasters  such  as  tornadoes  and  ice  storms,  as  well  as  accidents,  acts  of  terror,  infection  and  other  factors 
beyond our control could adversely affect our operations. Especially, as our facilities are in areas where tornadoes are 
likely to occur, the effects of natural disasters and other events could damage our facilities and equipment and force 
a temporary halt to manufacturing and other operations, and such events could consequently cause severe damage 
to our business. We maintain insurance against these sorts of events; however, this is not guaranteed to cover all the 
losses and damages incurred.

7

If we are unable to hire, develop or retain employees, it could have an adverse effect on our business.

We  compete  to  hire  new  employees  and  then  seek  to  train  them  to  develop  their  skills.  We  may  not  be  able  to 
successfully  recruit,  develop  and  retain  the  personnel  we  need.  Unplanned  turnover  or  failure  to  hire  and  retain  a 
diverse, skilled workforce, could increase our operating costs and adversely affect our results of operations.

Variability in self-insurance liability estimates could impact our results of operations.

We self-insure for employee health insurance and workers’ compensation insurance coverage up to a predetermined 
level, beyond which we maintain stop-loss insurance from a third-party insurer for claims over $160,000 and $750,000 
for  employee  health  insurance  claims  and  workers'  compensation  insurance  claims,  respectively.  Our  aggregate 
exposure varies from year to year based upon the number of participants in our insurance plans. We estimate our self-
insurance liabilities using an analysis provided by our claims administrator and our historical claims experience. Our 
accruals for insurance reserves reflect these estimates and other management judgments, which are subject to a high 
degree of variability. If the number or severity of claims for which we self-insure increases, it could cause a material and 
adverse change to our reserves for self-insurance liabilities, as well as to our earnings.

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

As of December 31, 2013, we own all of our facilities, consisting of approximately 1.5 million square feet of space for 
office, manufacturing, warehouse, assembly operations and parts sales 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, and 
a 861,000 sq. ft. manufacturing/warehouse building and a 70,000 sq. ft. office building located on an approximately 
40-acre tract of land across the street from the original facility (2440 South Yukon Avenue) (the "Tulsa facilities"). The 
Tulsa facilities are of sheet metal construction.

Our  manufacturing  area  is  in  heavy  industrial  type  buildings,  with  some  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 31.5 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.

Item 3. Legal Proceedings.

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

Item 4. Mine Safety Disclosure.

Not applicable.

8

2013 ANNUAL REPORTPART II

Item 5. Market for Registrant's Common Equity, Related 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 intraday high and low reported sale prices for our common stock for the past two fiscal years. 
As of the close of business on March 1, 2014, there were 1,086 holders of record of our common stock.

Quarter Ended

March 31, 2012

June 30, 2012

September 30, 2012

December 31, 2012

March 31, 2013

June 30, 2013

September 30, 2013

December 31, 2013

High

$ 20.65*

$ 19.06*

$ 19.95*

$ 20.95*

$ 28.26*

$ 33.78*

$ 26.98

$ 32.58

Low

$ 20.05*

$ 18.64*

$ 19.63*

$ 20.17*

$ 27.28*

$ 32.00*

$ 26.21

$ 31.84

 * Reflects three-for-two stock split effective July 2, 2013

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. Future cash dividends 
will be dependent on cash flows and results of operations.

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 $0.08 per share, and, in view of our strong financial position, the Board also declared 
a one-time special cash dividend of $0.08 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.

On May 21, 2013, we declared a three-for-two stock split of the Company's common stock to be paid in the form 
of a stock dividend on July 2, 2013. Stockholders of record at the close of business on June 13, 2013 received 
one additional share for every two shares they held as of that date. All share and per share information has 
been updated to reflect the effects of this stock split. In addition, on May 21, 2013, we approved a semi-annual 
cash dividend of $0.10 per share, post split, to the holders of our outstanding Common Stock as of the close 
of business on June 13, 2013, the record date. Those dividends were paid on July 2, 2013.

We declared a regular semi-annual cash dividend of $0.10 per share on November 6, 2013. The dividends were 
payable to shareholders of record at the close of business on December 2, 2013, the record date, and were 
paid on December 23, 2013.

9

The following is a summary of our share-based compensation plans as of December 31, 2013:

Equity Compensation Plan Information

(a)
Number of securities to 
be issued upon exercise 
of outstanding options,  
warrants and rights

(b) 
Weighted-average 
exercise price of 
outstanding options, 
warrants and rights

(c) 
Number of securities 
remaining available for 
future issuance under 
equity compensation plans 
(excluding securities reflected 
in column (a))

112,810

819,243

$ 6.15

$ 11.49

-

281,464

Plan category

The 1992 stock option plan

The Long-Term Incentive Plan

Repurchases during the fourth quarter of 2013 were as follows:

Issuer Purchases of Equity Securities

Period

October 2013

November 2013

December 2013

Total

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

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

28,618

38,257

49,593

116,468

$ 26.94

$ 28.47

$ 30.51

$ 28.96

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

(d)
Maximum Number (or
Approximate Dollar
Value) of Shares (or
Units) that may yet be
Purchased under the
Plans or Programs

28,618

38,257

49,593

116,468

-

-

-

-

10

2013 ANNUAL REPORTComparative Stock Performance 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, 2008 through December 31, 2013. The graph assumes that 
$100 was invested at the close of trading December 31, 2008, 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.

Comparison of 5 Year Cumulative Total Return
Assumes Initial Investment of $100
December 31, 2013

400

350

300

250

200

150

100

50

2008 

2009 

2010 

2011 

2012 

2013

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.

11

Item 6. Selected Financial Data.

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:

2013

2012

2011

2010

2009

Years Ending December 31,

Net sales

Net income

Earnings per share:

Basic*

Diluted*

Cash dividends declared per 
common share:

(in thousands, except per share data)

$ 321,140

$ 303,114

$ 266,220

$ 244,552

$ 245,282

$ 37,547

$ 27,449

$ 13,986

$ 21,894

$ 27,721

$ 1.02

$ 1.01

$ 0.20

$ 0.75

$ 0.74

$ 0.24 (1)

$ 0.38

$ 0.37

$ 0.16

$ 0.58

$ 0.58

$ 0.16

$ 0.72

$ 0.71

$ 0.16

 *Reflects three-for-two stock split effective July 2, 2013
(1) Includes special dividend of $0.08 per common share paid on December 24, 2012.

Financial Position at End 
of Fiscal Year:

2013

2012

2011

2010

2009

December 31,

Working capital

Total assets

Long-term and current debt

$ 77,294

215,444

-

$ 51,921

193,493

-

Total stockholders’ equity

164,106

138,136

(in thousands)

$ 45,700

178,981

4,575

122,504

$ 55,502

160,277

-

$ 65,354

156,211

76

116,739

117,999

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

Overview

We engineer, manufacture and market air conditioning and heating equipment consisting of rooftop units, 
chillers, outdoor mechanical rooms, air handling units, makeup air units, energy recovery units, condensing 
units, commercial self-contained units and coils. These products are marketed and sold to retail, manufacturing, 
educational, lodging, supermarket, medical and other commercial industries. We market our products to all 
50 states in the United States and certain provinces in Canada.

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 uncertainty 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.

12

2013 ANNUAL REPORT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 six to 18 months. Housing starts, 
in turn, are affected by such factors as interest rates, the state of the economy, population growth and the 
relative age of the population. When new construction is down, we emphasize the replacement market. The 
new construction market in 2013 continued to be unpredictable and uneven. Thus, throughout the year, we 
emphasized promotion of the benefits of AAON equipment to property owners in the replacement market.

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 remained relatively consistent the past few years, but the market 
continues to be volatile and unpredictable as a result of the uncertainty related to the U.S. economy and a 
weakening global economy. For the year ended December 31, 2013, the prices for copper, galvanized steel, 
stainless steel and aluminum decreased approximately 3.4%, 4.2%, 14.12% and 6.8% respectively, from a year 
ago. For the year ended December 31, 2012, prices for copper increased approximately 0.5% from prior year, 
while the cost of galvanized steel, stainless steel and aluminum decreased approximately 4.0%, 12.82% and 
8.0%, respectively.

In 2011, we began using an all aluminum microchannel condenser coil on our small rooftop unit product line 
and, in 2013, we began using this condenser coil in our new large rooftop product line as well. The condenser 
coil is the outdoor coil of an conventional air conditioning system. We expect to be using this type of condenser 
coil throughout the complete rooftop unit product line by the end of 2014. This will reduce our copper tube 
usage in this component of the product, however, copper will remain a high volume raw material because of 
its use throughout the equipment.

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 six to 18 months. We expect to receive 
delivery of raw materials from our fixed price contracts for use in our manufacturing operations.

The  following  are  recent  developments  that  impacted  our  results  of  operations,  cash  flows,  and  financial 
condition:

•  We estimate that we have captured approximately 15% 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 markets.

•  We paid $9.0 million in capital expenditures in 2013, a decrease of $5.1 million from the 

$14.1 million in 2012.

•  We paid cash dividends of $7.4 million in 2013 compared to $8.8 million in 2012. 

•  We introduced two large commercial product lines in 2013, the CN Series condensing units 
and the LN Series chillers. These products share common parts and designs with our large 
commercial RN Series rooftop units and have similar efficiency and serviceability benefits 
for our customers.

•  With the opening of a local retail parts store and improvement of parts sales efficiencies to 
the sales representatives during 2013, we saw an 17.9% increase in parts sales compared 
with 2012. In 2013, parts sales were approximately 4.9% of total net sales.

13

Results of Operations

Units sold for years ended December 31:

Rooftop Units

Split Systems

Outdoor Mechanical Rooms

2013

2012

2011

13,969

2,604

93

16,666

13,091

2,651

67

15,809

12,023

3,121

80

15,224

Total Units

Year Ended December 31, 2013 vs. Year Ended December 31, 2012 

Net Sales

Net sales

Total Units

Years Ending December 31,

2013

2012

$ Change

% Change

(in thousands, except unit data)

$ 321,140

 16,666

$ 303,114

15,809

$ 18,026

857

5.9%

5.4%

The increase in net sales was the result of the favorable reception to our new products and increased market share, along with 3-4% 
price increases introduced during the year. Because of our wide product mix and flexibility of features within each product, overall 
net sales increased approximately 6%. We estimate that approximately 3% of the net sale increase was a related to the price increases 
during the year and the other 3% was related to increased unit sales

Cost of Sales

Years Ending December 31,

Percent of Sales

2013

2012

2013

2012

(in thousands)

Cost of sales

Gross Profit

$ 231,348

 89,792

$ 232,615

70,499

72.0%

28.0%

76.7%

23.3%

The principal components of cost of sales 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.

14

2013 ANNUAL REPORTTwelve month average raw material cost per pound as of December 31:

Copper

Galvanized Steel

Stainless Steel

Aluminum

Years Ending December 31,

2013

2012

% Change

$ 4.29

$ 0.46

$ 1.46

$ 1.51

$ 4.44

$ 0.48

$ 1.70

$ 1.62

(3.4)%

(4.2)%

(14.1)%

(6.8)%

Selling, General and Administrative Expenses

Years Ending December 31,

Percent of Sales

2013

2012

2013

2012

Warranty

Profit Sharing

Salaries & Benefits

Stock Compensation

Advertising

Other

$ 6,024

6,397

10,287

1,086

946

9,249

(in thousands)

$ 3,545

4,924

8,745

1,009

893

7,145

1.9%

2.0%

3.2%

0.3%

0.3%

2.9%

Total SG&A

$ 33,989

$ 26,261

10.6%

1.2%

1.6%

2.9%

0.3%

0.3%

2.4%

8.7%

The increase in SG&A is primarily due to higher profit sharing expense as a result of higher operating income before income taxes and 
higher employee salaries as a result of salary pay increases and additional headcount. In addition, warranty expenses increased due to 
higher sales and claims in 2013 compared to 2012.

Other Income (Expense), net

Years Ending December 31,

Percent of Sales

2013

2012

2013

2012

(in thousands)

Other income (expense), net

$ 248

$ 41

0.1%

- %

In the second quarter of 2013, the Company completed work done to repair its facilities from an ice storm in a prior year. The insurance 
proceeds received for this damage exceeded the cost to repair the buildings resulting in a gain of approximately $0.3 million.

15

Income Taxes

Years Ending December 31,

Effective Tax Rate

2013

2012

2013

2012

(in thousands)

Income tax provision

$ 18,747

$ 16,868

33.3%

38.1%

The income tax provision for 2013 reflected benefits related to the R&D Credit and the Indian Employment Credit of approximately 
$0.9 million for tax years 2013 and 2012. These federal credits were retroactively reinstated on January 2, 2013, with the enactment of 
the American Taxpayer Relief Act of 2012 ("ATRA"). No R&D Credit or Indian Employment Credit benefits were recorded in the income 
tax provision for 2012. The Company also had a change in estimate related to the recoverability of certain 2012 tax credits that was 
recorded  in  the  first  quarter  of  2013  for  approximately  $0.6  million,  causing  our  effective  tax  rate  to  be  lower  than  expected. This 
change in estimate was the result of additional and better information. In addition, our domestic manufacturing deduction for 2013 
increased approximately $0.7 million compared to 2012.

Year Ended December 31, 2012 vs. Year Ended December 31, 2011 

Net Sales

Net sales

Total Units

Years Ending December 31,

2012

2011

$ Change

% Change

(in thousands)

$ 303,114

$ 266,220

15,809

15,224

$ 36,894

585

13.9%

3.8%

The increase in net sales was the result of the favorable reception to our new products and increased market share, along with 3% to 
5% price increases introduced during the year. Because of our wide product mix and flexibility of features within each product, overall 
net sales increased approximately 14%. We estimate that approximately 4% of the net sale increase was related to the price increases 
during the year and the other 9% was related to increased unit sales.

Cost of Sales

Cost of sales

Gross Profit

Years Ending December 31,

Percent of Sales

2012

2011

2012

2011

$ 232,615

$ 219,939

70,499

46,281

76.7%

23.3%

82.6%

17.4%

The principal components of cost of sales 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.

Higher component prices adversely affected gross profit in 2011. Also, the Company experienced the negative effect of manufacturing 
inefficiencies due to the introduction of new products and our decision to replace approximately 50% of AAON’s heavily-used sheet 
metal  equipment  in  2011. The  new  equipment  allowed  us  to  improve  manufacturing  efficiencies  in  2012,  reducing  our  labor  and 
overhead costs.

16

2013 ANNUAL REPORTTwelve month average raw material cost per pound as of December 31:

Copper

Galvanized Steel

Stainless Steel

Aluminum

Years Ending December 31,

2012

2011

% Change

$ 4.44

$ 0.48

$ 1.70

$ 1.62

$ 4.42

$ 0.50

$ 1.95

$ 1.76

0.5%

(4.0)%

(12.8)%

(8.0)%

Selling, General and Administrative Expenses

Warranty

Profit Sharing

Salaries & Benefits

Stock Compensation

Advertising

Other

Years Ending December 31,

Percent of Sales

2012

2011

2012

2011

(in thousands)

$ 3,545

$ 4,180

4,924

8,745

1,009

893

7,145

2,449

7,299

521

1,223

6,638

Total SG&A

$ 26,261

$ 22,310

1.2%

1.6%

2.9%

0.3%

0.3%

2.4%

8.7%

1.6%

0.9%

2.7%

0.2%

0.5%

2.5%

8.4%

Profit sharing expense increased as a result of higher operating income before income tax. Salaries and benefits increased due to pay 
increases and increases in the management discretionary bonus incentive plan. Warranty decreased as a result of lower claims.

Loss on Disposal of Assets

Years Ending December 31,

Percent of Sales

2012

2011

2012

2011

(in thousands)

Loss on Disposal of Assets

$ 4

$ 1,802

- %

0.7%

A $1.8 million charge to earnings was recorded in 2011 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.

17

Other Income (Expense), net

Years Ending December 31,

Percent of Sales

2012

2011

2012

2011

Other income(expense), net

$ 41

$ (477)

- %

(0.2)%

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.

Income Taxes 

Years Ending December 31,

Effective Tax Rate

2012

2011

2012

2011

(in thousands)

Income tax provision

$ 16,868

$ 7,527

38.1%

35.0%

On January 2, 2013, the ATRA was signed into law. Some of the provisions were retroactive to January 1, 2012, including the extension 
of  certain  tax  credits. The  tax  rate  for  2012  above  reflects  the  tax  law  that  was  in  place  as  of  December  31,  2012.  Had  the  ATRA 
been enacted prior to January 1, 2013, our overall tax expense would have been approximately $0.5 million lower. This $0.5 million 
difference was recorded as a reduction in expense in the first quarter of 2013. The Company also had a change in estimate related to 
the recoverability of certain 2012 tax credits that was recorded in the first quarter of 2013 for approximately $0.6 million. This change 
in estimate was the result of additional and better information. Had the ATRA impact and the change in estimate been booked in 2012 
instead of 2013, our overall effective tax rate would have been approximately 35.5%.

18

2013 ANNUAL REPORT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.

Our cash and cash equivalents increased $8.9 million from December 31, 2012 to December 31, 2013. As of 
December 31, 2013, we had $12.1 million in cash and cash equivalents. 

As of December 31, 2013, we had certificates of deposit of $10.7 million and investments held to maturity at 
amortized cost of $27.0 million. These certificates of deposit had maturity dates of approximately one month 
to 15 months. The investments held to maturity at amortized cost had maturity dates of less than one month 
to approximately 16 months.

On July 28, 2013 we renewed the line of credit with BOKF, NA dba Bank of Oklahoma, formerly known as Bank 
of Oklahoma, N.A. ("Bank of Oklahoma"). The revolving line of credit matures on July 27, 2014. We expect to 
renew our line of credit in July 2014 with favorable terms as we do not anticipate a tightening of funds in the 
financial markets. Under the line of credit, there was one standby letter of credit of $0.9 million as of December 
31,  2013.  Subsequent  to  year-end,  we  renewed  the  standby  letter  of  credit  and  decreased  the  amount  to 
$0.8 million. At December 31, 2013 we have $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, 2013 and 2012, there were no outstanding balances under the revolving credit facility. 
Interest on borrowings is payable monthly at LIBOR plus 2.5%. The weighted average interest rate was 2.7% 
and 2.8% for the years ended December 31, 2013 and 2012, respectively.

At December 31, 2013, 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,  2013,  our  tangible  net  worth  was  $164.1  million,  which 
meets the requirement of being at or above $95.0 million. Our total liabilities to tangible net worth ratio was 
0.3 to 1.0 which meets the requirement of not being above 2 to 1. Our working capital was $77.3 million, 
which meets the requirement of being at or above $40.0 million.

We  repurchased  shares  of  stock  from  employees’  401(k)  savings  investment  plan,  option  exercises  of  our 
directors and officers and vested restricted stock from employees, directors and officers in the amount of $8.2 
million for 0.4 million shares, $6.7 million for 0.5 million shares and $3.7 million for 0.3 million shares in 2013, 
2012 and 2011, respectively. We repurchased the shares at current market prices. Prior year share amounts 
have been adjusted for the three-for-two stock split effective July 2, 2013.

For the years ended December 31, 2013, 2012 and 2011, we paid cash dividends of $7.4 million, $8.8 million 
and $5.9 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 2014 and the 
foreseeable future.

19

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.

2013

2012

2011

(in thousands)

$ 37,547

12,892

 $ 27,449

12,350

 $ 13,986 

23,599

Operating Activities
Net Income

Income statement adjustments, net

Changes in assets and liabilities:

Accounts receivable

Income tax receivable

Inventories

Prepaid expenses and other

Accounts payable

Deferred revenue

Accrued liabilities

Net cash provided by operating activities

Investing Activities

Capital expenditures

Purchases of investments

Maturities of investments and proceeds from called investments

Other

4,662

464

231

436

(5,197)

615

1,942

53,592

(9,041)

(31,383)

8,937

161

(9,646)

9,715

2,271

(17)

2,461

-

6,584

51,167

(14,147)

(18,194)

1,926

80

Net cash used in investing activities

(31,326)

(30,335)

Financing Activities

(Payments) borrowings under revolving credit facility, net

Stock options exercised and excess tax benefits from stock op-
tions exercised and restricted stock awards vested

Repurchase of stock

Cash dividends paid to stockholders

Net cash used in financing activities

Cash Flows from Operating Activities

-

2,310

(8,222)

(7,428)

(4,575)

2,389

(6,660)

(8,840)

$ (13,340)

$ (17,686)

6,053

(10,016)

(1,296)

(67)

(2,751)

-

(3,024)

26,484

(35,914)

-

10,867

509

(24,538)

4,575

705

(3,671)

(5,935)

$ (4,326)

Accounts receivable decreased as a result of lower  fourth quarter sales in 2013  compared to  2012. Fourth 
quarter sales in 2012 were higher than fourth quarter 2011, which caused accounts receivable at December 
31, 2012 to increase compared to 2011.

The  higher  2011  income  statement  adjustment  and  change  in  income  tax  receivable  was  due  to  deferred 
taxes from additional bonus depreciation and capital expenditures done in 2011.

20

2013 ANNUAL REPORTCash Flows from Investing Activities

Capital expenditures were primarily investments in our manufacturing and production equipment to support 
our growth and improve efficiencies with equipment which combines the latest advancement in automation 
and laser technology. We took advantage of 2011 bonus depreciation tax deductions, which caused the large 
amount of capital expenditures in 2011.

The capital expenditure program for 2014 is estimated to be approximately $13 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.

Investment purchase activity in 2013 and 2012 is primarily attributable to investment of excess cash flows 
from operations.

Cash Flows from Financing Activities

We continued to increase our buyback activity in 2013 compared to prior years.

Off-Balance Sheet Arrangements

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 had one material contractual agreement as of December 31, 2013, as follows:

Payments Due by Period

Total

Less Than 1 
Year

1 to 3 Years

3 to 5 Years

(in thousands)

More Than 5 
Year

Purchase obligations(1)

$ 1,361

$ 1,361

$ -

$ -

$ -

(1) The purchase obligation consists of delivery of aluminum ingot from one supplier. The quantity and price are fixed over the life of 
the contract.

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.

21

Critical Accounting Estimates

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.

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

Warranty – A provision is made for estimated warranty costs at the time the product is shipped and revenue 
is recognized. The warranty period is: the earlier of one year from the date of first use or 18 months from date 
of shipment for parts only; an additional four years on compressors (if applicable); 15 years on aluminized 
steel gas-fired heat exchangers (if applicable); 25 years on stainless steel heat exchangers (if applicable); and 
10 years on gas-fired heat exchangers in RL products (if applicable). With the introduction of the RQ product 
line in 2010, our warranty policy for the RQ series was implemented to cover parts for two years from date of 
unit shipment and labor for one year from date of unit shipment. Warranty expense is estimated based on the 
warranty period, historical warranty trends and associated costs, and any known identifiable warranty issue.

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.

Stock  Compensation  –  We  measure  and  recognize  compensation  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-Merton option valuation 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

None.

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

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 six to 18 
months to manage this exposure.

Item 8. Financial Statements and Supplementary Data.

22

2013 ANNUAL REPORTINDEX TO CONSOLIDATED FINANCIAL STATEMENTS  

Page

Report of Independent Registered Public Accounting Firm 

Consolidated Balance Sheets 

Consolidated Statements of Income 

Consolidated Statements of Stockholders’ Equity 

Consolidated Statements of Cash Flows 

Notes to Consolidated Financial Statements 

24

25

26

27

28

30 

23

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, 2013 and 2012, and the related consolidated statements of 
income, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 
2013. 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, 2013 and 2012, and the results of 
their operations and their cash flows for each of the three years in the period ended December 31, 2013, 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,  2013,  based  
on  criteria  established  in  the  1992  Internal  Control–Integrated  Framework  issued  by  the  Committee  of 
Sponsoring  Organizations  of  the  Treadway  Commission  (COSO),  and  our  report  dated  March  13,  2014, 
expressed an unqualified opinion on the effectiveness of internal control over financial reporting.

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 13, 2014 

24

2013 ANNUAL REPORTAAON, Inc. and Subsidiaries
Consolidated Balance Sheets

December 31,

2013

2012

(in thousands, except share and per share data)

Assets
Current assets:

Cash and cash equivalents
Certificates of deposit
Investments held to maturity at amortized cost
Accounts receivable, net
Income tax receivable
Notes 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
Notes receivable, long-term
Total assets

Liabilities and Stockholders’ Equity
Current liabilities:

Revolving credit facility
Accounts payable
Accrued liabilities
Total current liabilities
Deferred revenue
Deferred tax liabilities
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares 

issued

 $ 12,085 
8,110
16,040
39,063
1,073
29
32,140
304
4,779
113,623

1,417
61,821
119,439
9,748
192,425
105,142
87,283
2,638
10,981
919
 $ 215,444 

$ -  
7,779
28,550
36,329
585
14,424

 $ 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

Common stock, $.004 par value, 50,000,000 shares authorized, 

 147 

147

36,711,354 and 36,776,624 issued and outstanding at 
December 31, 2013 and 2012, respectively*

Additional paid-in capital
Retained earnings
Total stockholders' equity
Total liabilities and stockholders' equity
*Reflects three-for-two stock split effective July 2, 2013

163,959
164,106
 $ 215,444 

137,989
138,136
 $ 193,493 

25

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

AAON, Inc. and Subsidiaries  
Consolidated Statements of Income

Net sales

Cost of sales

Gross profit

Selling, general and administrative expenses

(Gain) loss on disposal of assets

Income from operations

Interest income (expense)

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,

2013

2012

2011

(in thousands, except per share data)

 $ 321,140 

$ 303,114 

231,348

89,792

33,989

(22)

55,825

221

248

56,294

18,747

37,547 

$ 1.02

$ 1.01

$ 0.20

232,615

70,499

26,261

4

44,234

42

41

44,317

16,868

27,449

0.75

0.74

0.24(1)

$ 266,220 

219,939

46,281

22,310

1,802

22,169

(179)

(477)

21,513

7,527

13,986

0.38

0.37

0.16

36,746,100

37,058,254

36,825,170

37,048,826

37,034,778

37,321,719

*Reflects three-for-two stock split effective July 2, 2013
(1) Includes special dividend of $0.08 per common share paid on December 24, 2012.

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

26

2013 ANNUAL REPORTAAON, Inc. and Subsidiaries  
Consolidated Statements of Stockholders’ Equity

Common Stock

Shares*

Amount*

Paid-In 
Capital

Retained 
Earnings*

Total

Balance at December 31, 2010

37,137 

$ 149 

Net income

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

Share-based compensation

Stock repurchased and retired

Dividends

Balance at December 31, 2012

Net income

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

Share-based compensation

Stock repurchased and retired

Dividends**

 -  

108

-

(318)

-

36,927

 -  

 354 

-

(504)

-

36,777

 -  

 290 

 -  

(356)

 -  

 -  

 -  

-

(1)

-

148

 -  

 1  

-

(2)

-

147

 -  

 1 

 -  

(1)

 -  

Balance at December 31, 2013

36,711

$ 147

(in thousands)

- 

 -  

 $ 116,590 

 $ 116,739 

13,986

13,986

705

680

(1,375)

(10)

-

 -  

 2,388

1,294

(3,682)

-

-

 -  

 2,309 

1,763

(4,072)

 -  

$ -  

 - 

-

(2,295)

(5,925)

122,356

27,449

 -  

-

(2,976)

(8,840)

137,989

37,547 

 -  

-

(4,149)

(7,428)

 705 

680

(3,671)

(5,935)

122,504

27,449

 2,389 

1,294

(6,660)

(8,840)

138,136

37,547

 2,310 

1,763

(8,222)

(7,428)

 $ 163,959 

 $ 164,106 

*Reflects three-for-two stock split effective July 2, 2013
**Includes cash payment of fractional shares from three-for-two stock split effective July 2, 2013

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

27

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

Foreign currency transaction gain

Interest income on note receivable

Deferred income taxes

Write-off of note receivable

Changes in assets and liabilities:

Accounts receivable

Income tax receivable

Inventories

Prepaid expenses and other

Accounts payable

Deferred revenue

Accrued liabilities

Net cash provided by operating activities

Years Ending December 31,

2013

2012

2011

(in thousands)

 $ 37,547 

 $ 27,449 

 $ 13,986 

12,312

790

141

243

1,763

(843)

(22)

67

(40)

(1,594)

75

4,662

464

231

436

(5,197)

615

1,942

53,592

13,407

155

(83)

63

1,294

(393)

4

(27)

(42)

(2,028)

 -  

(9,646)

9,715

2,271

(17)

2,461

 -  

6,584

51,167

11,397

156

(289)

(50)

680

(211)

1,802

(8)

 -  

10,122

 -  

6,053

(10,016)

(1,296)

(67)

(2,751)

 -  

(3,024)

26,484

(Continued on next page)

28

2013 ANNUAL REPORTAAON, Inc. and Subsidiaries 
Consolidated Statements of Cash Flows (Continued)

Investing Activities

Capital expenditures

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 called investments

Principal payments from note receivable

Net cash used in investing activities

Financing Activities

Borrowings under revolving credit facility

Payments under revolving credit facility

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

Net increase (decrease) in cash and cash equivalents

Cash and cash equivalents, beginning  
of year

Cash and cash equivalents, end of year

Years Ending December 31,

2013

2012

2011

(in thousands)

 $ (9,041)

$ (14,147)

$ (35,914)

92

(9,108)

3,600

(22,275)

2,005

3,332

69

11

(6,540)

1,300

(11,654)

-

626

69

482

-

1,503

-

9,364

-

27

 (31,326)

 (30,335)

 (24,538)

8,325

(8,325)

1,467

843

(8,222)

(7,428)

(13,340)

8,926

3,159

$ 12,085

 34,847 

 (39,422)

 1,996 

393

 (6,660)

 (8,840)

 (17,686)

3,146

 13 

 $ 3,159 

 82,078 

 (77,503)

 494 

 211 

 (3,671)

 (5,935)

 (4,326)

 (2,380)

 2,393 

 $ 13 

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

29

AAON, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
December 31, 2013 

 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.

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 intercompany 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 held $10.7 million and $5.2 million in certificates of deposit at December 31, 2013, and December 31, 2012, 
respectively. At December 31, 2013, the certificates of deposit bear interest ranging from 0.15% to 0.90% per 
annum and have various maturities ranging from approximately one month to 15 months.

Investments Held to Maturity

At December 31, 2013, our investments held to maturity were comprised of $27.0 million of corporate notes 
and  bonds  with  various  maturities  ranging  from  less  than  one  month  to  approximately  16  months.  The 
investments have moderate risk with S&P ratings ranging from A+ to BBB-. 

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.

30

2013 ANNUAL REPORTThe following summarizes the amortized cost and estimated fair value of our investments held to maturity at 
December 31, 2013 and December 31, 2012:

Amortized Cost

Gross  
Unrealized Gain

Gross  
Unrealized (Loss)

Fair Value

(in thousands)

December 31, 2013:

Current assets:

Investments held to maturity

$ 16,040

Non current assets:

Investments held to maturity

Total

10,981

$ 27,021

December 31, 2012:

Current assets:

Investments held to maturity

$ 2,832

Non current assets:

Investments held to maturity

Total

8,041

$ 10,873

11

7

18

-

-

-

-

-

-

$ 16,051

10,988

$ 27,039

$ (1)

$ 2,831

(9)

 $ (10)

8,032

$ 10,863

We evaluate these investments for other-than-temporary impairments on a quarterly basis. We do not believe 
that there was an other-than-temporary impairment for our investments at December 31, 2013 or 2012. 

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.

Concentration of Credit Risk

Our  customers  are  concentrated  primarily  in  the  domestic  commercial  and  industrial  new  construction 
and replacement markets. To date, our sales have been primarily to the domestic market, with foreign sales 
accounting for approximately 5% of revenues for the years ended December 31, 2013, 2012 and 2011. No 
customer accounted for 10% or more of our sales during 2013, 2012 or 2011. One customer accounted 5% 
of our accounts receivable balance at December 31, 2013. At December 31, 2012, we had one customer who 
placed an exceptionally large order with an invoice date of December 27, 2012 and a payment date of January 
17, 2013 that accounted for approximately 12% of our accounts receivable balance. 

Fair Value of Financial Instruments

The  carrying  amounts  of  cash  and  cash  equivalents,  receivables,  accounts  payable  and  accrued  liabilities 
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.

31

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

Property, plant and equipment, including significant 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 

Impairment of Long-Lived Assets

3-40 years

3-15 years

3-7 years

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, 2013, 2012, and 2011 research and 
development costs amounted to approximately $5.2 million, $3.6 million, and $4.8 million, respectively.

Advertising

Advertising  costs  are  expensed  as  incurred.  Advertising  expense  for  the  years  ended  December  31,  2013, 
2012, and 2011 was approximately $0.9 million, $0.9 million, and $1.2 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, 2013, 2012 and 2011 shipping and handling fees amounted to approximately 
$7.9 million, $8.6 million, and $8.7 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.

32

2013 ANNUAL REPORTShare-Based 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-
Merton option valuation model. The use of the Black-Scholes-Merton 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.

Derivative Instruments

In the course of normal operations, the Company occasionally enters into contracts such as forward priced 
physical contracts for the purchase of raw materials that qualify for and are designated as normal purchase 
or normal sale contracts. Such contracts are exempted from the fair value accounting requirements and are 
accounted for at the time product is purchased or sold under the related contract. The Company does not 
engage  in  speculative  transactions,  nor  does  the  Company  hold  or  issue  financial  instruments  for  trading 
purposes.

Revenue Recognition

We recognize revenues from sales of products when 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. Sales of our 
products are moderately seasonal with the peak period being July - November of each year.

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

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

 The Representatives’ fee and Third Party Products amounts (“Due to Representatives”) are paid only after all 
amounts associated with the order are collected from the customer. 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 $63.0 million, $57.1 million, and $51.6 million for each of the years ended December 
31, 2013, 2012, and 2011, respectively.

The Company also sells extended warranties on parts for various lengths of time ranging from six months to 
ten years. Revenue for these separately priced warranties is deferred and recognized on a straight-line basis 
over the separately priced warranty period.

33

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.

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  income  taxes.  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

Provisions for losses on accounts receivables,  
net of adjustments

Accounts receivable written off, net of recoveries

Balance, end of period

December 31,

2013

2012

(in thousands)

$ 39,256

(193)

$ 39,063

$ 43,918

(52)

$ 43,866

Years Ending December 31,

2013

2012

2011

(in thousands)

$ 52

141
-
$ 193

$ 268

(83)

(133)

$ 52

$ 600

(289)

(43)

$ 268

34

2013 ANNUAL 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

Total, net

Allowance for excess and obsolete inventories:

Balance, beginning of period

Provisions for excess and obsolete inventories 

Inventories written off

Balance, end of period

December 31,

2013

2012

(in thousands)

$ 28,592

$ 28,155

2,286

1,841

32,719

(579)

32,140

2,757

2,065

32,977

(363)

32,614

Years Ending December 31,

2013

2012

2011

(in thousands)

$ 363

243

(27)

$ 579

$ 300

63

-

$ 363

$ 350

(50)

-

$ 300

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, 2013 and 2012, there 
was no impairment.

35

6. Supplemental Cash Flow Information

Supplemental disclosures:

Interest paid

Income taxes paid, net

Non-cash investing and financing activities:

Non-cash capital expenditures

Trade-in of equipment

Years Ending December 31,

2013

2012

2011

(in thousands)

$ 1

19,884

71

315

$ 44

15,128

(3,670)

300

$ 277

6,377

3,852

1,802

7. Warranties

The  Company  has  warranties  with  various  terms  from  eighteen  months  for  parts  to  twenty-five  years  for 
certain heat exchangers. The Company has an obligation to replace parts or service its products if conditions 
under the warranty are met. 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.

Changes in the warranty accrual are as follows:

Warranty accrual:

Balance, beginning of period

Payments made

Provisions

Adjustments related to changes in estimates

Balance, end of period

Years Ending December 31,

2013

2012

2011

(in thousands)

$ 5,776

(4,448)

6,005

19

7,352

$ 6,093

(3,861)

3,304

240

5,776

$ 7,300

(5,387)

5,146

(966)

6,093

Warranty expense:

$ 6,024

$ 3,545

$ 4,180

36

2013 ANNUAL REPORT8. Accrued Liabilities

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

Warranty

Due to representatives

Payroll

Profit sharing

Workers' compensation

Medical self-insurance

Customer prepayments

Employee benefits and other

Total

9. Revolving Credit Facility

December 31,

2013

2012

(in thousands)

$ 7,352

$ 5,776

9,480

4,448

1,389

665

353

2,077

2,786

9,439

2,515

1,337

928

420

3,933

2,230

$ 28,550

$ 26,578

Our revolving credit facility provides for maximum borrowings of $30.0 million which is provided by BOKF, 
NA dba Bank of Oklahoma, formerly known as Bank of Oklahoma, N.A. ("Bank of Oklahoma"). Under the line 
of credit, there was one standby letter of credit totaling $0.9 million as of December 31, 2013. Subsequent 
to year-end, we renewed the standby letter of credit and decreased the amount to $0.8 million. Borrowings 
available under the revolving credit facility at December 31, 2013, 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,  2013  and  2012,  we  had  no  balance  outstanding  under  our  revolving  credit 
facility. At December 31, 2013 and 2012, the weighted average interest rate was 2.7% and 2.8%, respectively.

At  December  31,  2013,  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,  2013  our  tangible  net  worth  was  $164.1  million,  which  meets  the 
requirement of being at or above $95.0 million. Our total liabilities to tangible net worth ratio was 0.3 to 1.0, 
which meets the requirement of not being above 2 to 1. Our working capital was $77.3 million which meets 
the requirement of being at or above $40.0 million. 

Effective July 28, 2013, the Company amended its revolving credit facility with the Bank of Oklahoma. The 
amendment extends the termination date of the revolving credit facility to July 27, 2014.

10. Income Taxes

The provision for income taxes consists of the following:

Current

Deferred

Years Ending December 31,

2013

2012

2011

$ 20,341

(1,594)

$ 18,747

(in thousands)

$ 18,896

(2,028)

$ 16,868

$ (2,595)

10,122

$ 7,527

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

37

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

Domestic manufacturing deduction

Other

Years Ending December 31,

2013

2012

2011

35%

4%

(4)%

(2)%

33%

35%

5%

(3)%

1%

38%

35%

4%

- %

(4)%

35%

Other primarily relates to 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,

2013

2012

(in thousands)

$ 304

2,901

1,420

154

$ 164

2,287

1,996

46

$ 4,779

$ 4,493

$ (14,843)

$ (16,659)

692

(273)

653

274

$ (14,424)

$ (15,732)

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 2011 to present, and to non-U.S. income tax examinations for the tax years of 2008 
through 2011. In addition, we are subject to state and local income tax examinations for the tax years 2010 to 
present. The Company continues to evaluate its need to file returns in various state jurisdictions and recorded 
$0.2 million in additional state income tax expense, net of federal benefit, during 2013 related to our updated 
assessment of required state filings. 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 was utilized with the amended filing of the 2009 federal tax return.

38

2013 ANNUAL REPORTOn January 2, 2013 the ATRA 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 $0.5 million lower. This was recorded as a reduction in expense in the first quarter 
of 2013. The Company also had a change in estimate related to the recoverability of certain 2012 tax credits 
that was recorded in the first quarter of 2013 for approximately $0.6 million. This change in estimate was the 
result of additional and better information. Had the ATRA impact and the change in estimate been booked in 
2012 instead of 2013, our overall effective tax rate would have been approximately 35.5% for the year ended 
December 31, 2012.

11. Share-Based Compensation

As discussed in Note 13, the Company had a three-for-two stock split effective July 2, 2013. All share information 
herein has been updated to reflect the effect of this stock split.

We have historically maintained a stock option plan for key employees, directors and consultants (“the 1992 
Plan”). The 1992 Plan provided for 9.9 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 
1,687,500 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, 
2013 is $1.4 million and is expected to be recognized over a weighted-average period of 2.09 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, 2013, 2012 and 2011 using a Black Scholes-Merton Model:

Director and Officers:

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)

2013

2012

2011

1.19%

47.08%

1.55%

7

1.14%

45.92%

1.40%

8

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 

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.

39

The following is a summary of stock options vested and exercisable as of December 31, 2013:

Range of
Exercise Prices

Number of 
shares

Weighted Average
Remaining Contractual Life

Weighted Average 
Exercise Price

$4.81 - 10.34

$10.70 - 12.25

$12.98 - 14.01

Total

281,335

42,150

65,258

388,743

4.09

7.45

8.38

5.17

$ 7.28

10.86

12.98

$ 8.62

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

$4.81 - 6.47

$6.81 - 8.65

$9.13 - 12.20

Total

99,525

202,575

75,150

377,250

2.86

5.22

7.86

5.12

$ 5.36

7.19

10.42

$ 7.35

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

$4.30 - 4.81

$5.02 - 7.11

$7.17 - 9.19

$10.34 - 12.20

Total

122,775

230,850

171,300

24,300

549,225

2.42

5.00

5.13

8.50

4.62

$ 4.61

6.37

8.08

10.61

$ 6.70

Intrinsic Value

(in thousands)

$ 6,941

889

1,238

$ 9,068

Intrinsic Value

(in thousands)

$ 851

1,362

263

$ 2,476

Intrinsic Value

(in thousands)

$ 1,111

1,682

957

74

$ 3,824

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

Options:

Outstanding at December 31, 2012

Granted

Exercised

Forfeited or Expired

Outstanding at December 31, 2013

Exercisable at December 31, 2013

Shares

Weighted Average 
Exercise Price

1,115,513

47,500

(180,935)

(50,025)

932,053

388,743

$ 10.15

17.70

8.11

11.82

$ 10.84

$ 8.62

40

2013 ANNUAL REPORTThe total intrinsic value of options exercised during December 31, 2013, 2012 and 2011 was $2.7 million, $4.0 
million and $1.1 million, respectively. The cash received from options exercised during December 31, 2013, 
2012 and 2011 was $1.5 million, $2.0 million and $0.5 million, respectively. The impact of these cash receipts is 
included in financing activities in the accompanying Consolidated Statements of Cash Flows.

Since 2007, as part of the LTIP, the Compensation Committee of the Board of Directors has authorized and 
issued restricted stock awards to directors and key employees. Restricted stock awards granted to directors 
vest  one-third  each  year.  All  other  restricted  stock  awards  vest  at  a  rate  of  20%  per  year. 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, 2013, unrecognized compensation cost related 
to unvested restricted stock awards was approximately $1.6 million which is expected to be recognized over 
a weighted average period of 2.48 years.

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

Restricted Stock:

Unvested at December 31, 2012

Granted

Vested

Forfeited

Unvested at December 31, 2013

Shares

Weighted Average 
Grant Date Fair Valve

96,116

98,429

(35,876)

(1,315)

157,354

$ 12.11

23.42

12.17

13.95

$ 19.16

Grant date fair value of awards during the period:

2013

2012

2011

Options

Restricted stock

Total

$ 841

2,306

$ 3,147

(in thousands)

 $ 2,569 

 830 

 $ 3,399 

 $ 632 

 325 

 $ 957 

Share-based compensation expense:

2013

2012

2011

Options 

Restricted stock

Total

Income tax benefit related to share-based  
compensation:

Options 

Restricted stock

Total

$ 1,170

593

$ 1,763

(in thousands)

$ 958 

 336 

 $ 1,294 

 $ 389 

 291 

 $ 680 

2013

2012

2011

(in thousands)

 $ 370 

 23 

 $ 393 

$ 715

128

$ 843

 $ 154 

 57 

 $ 211 

41

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. The Plan provides for automatic enrollment and 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. Effective October 1, 2013, and each year thereafter, eligible 
employees are automatically enrolled in the Plan at a 6% deferral rate and currently contributing employees 
deferral rates will be increased to 6% unless their current rate is above 6% or the employee elects to decline 
the automatic enrollment or increase.

Under the Plan, through September 30, 2013, the Company contributed a specified percentage of each eligible 
employee’s compensation. In addition, the Company contributed 1.5% of eligible payroll to the Plan each year. 
Effective October 1, 2013, the Plan was amended such that the Company contributes 3% of eligible payroll to 
the Plan for each employee and matches 100% up to 6% of employee contributions of eligible compensation. 
We contribute in the form of cash and direct the investment to shares of AAON stock. Employees are 100% 
vested in salary deferral contributions and vest 20% per year at the end of years two through six of employment 
in employer matching contributions. The additional 3% Company contribution vests over two years. For the 
years ended December 31, 2013, 2012 and 2011 we made matching contributions of $3.0 million, $2.4 million 
and $2.2 million, respectively. Administrative expenses were approximately $0.2 million for the year ended 
2013 and approximately $0.1 million for the years ended 2012 and 2011, 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 and last days 
of the calendar quarter. Profit sharing expense was $6.4 million, $4.9 million and $2.4 million for the years 
ended December 31, 2013, 2012 and 2011, respectively.

13. Stockholders’ Equity

Stock Repurchase - On May 17, 2010, the Board authorized a stock buyback program, targeting repurchases 
of up to approximately 5% (approximately 2.0 million shares) of our outstanding stock from time to time in 
open market transactions. Through June 28, 2010, we repurchased a total of approximately 1.1 million shares 
for an aggregate price of $11.5 million, or an average price of $10.69 per share. We purchased the shares at 
current market prices. No purchases were made for the years ended December 31, 2013 and 2012.

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, 2013, we repurchased approximately 
3.1 million shares for an aggregate price of $31.1 million, or an average price of $10.10 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, 2013, we repurchased approximately 1.2 
million shares for an aggregate price of $13.2 million, or an average price of $11.22 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.

42

2013 ANNUAL REPORT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 $0.08 per share, and, in view of our strong financial position, the Board also declared 
a one-time special cash dividend of $0.08 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.

On May 21, 2013, the Board of Directors declared a three-for-two stock split of the Company's common stock 
to be paid in the form of a stock dividend on July 2, 2013. Stockholders of record at the close of business on 
June 13, 2013 received one additional share for every two shares they held as of that date. All share and per 
share information has been updated to reflect the effects of this stock split.

On May 21, 2013, the Board of Directors approved a semi-annual cash dividend of $0.10 per share, post split, 
to the holders of our outstanding Common Stock as of the close of business on June 13, 2013, the record date. 
Those dividends were paid on July 2, 2013.

At a meeting of the Board of Directors on November 6, 2013, the Board declared a regular semi-annual cash 
dividend of $0.10 per share. The dividends were payable to shareholders of record at the close of business on 
December 2, 2013, the record date, and were paid on December 23, 2013.

We paid cash dividends of $7.4 million, $8.8 million and $5.9 million in 2013, 2012 and 2011, 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, results of operations or cash 
flows 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. At December 31, 2013, we 
had one material contractual purchase obligation for approximately $1.4 million that expires in December 
2014. 

15. New Accounting Pronouncements

There have been no recent accounting pronouncements that would impact our financial statements.

43

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:

2013

2012

2011

(in thousands, except share and per share data)

$ 37,547

 $ 27,449 

 $ 13,986 

Basic weighted average shares*

36,746,100

36,825,170

37,034,778

Effect of dilutive stock options and restricted stock*

312,154

223,656

286,941

Diluted weighted average shares*

37,058,254

37,048,826

37,321,719

Earnings per share:

Basic*

Dilutive*

Anti-dilutive shares:

Shares*

 *Reflects three-for-two stock split effective July 2, 2013

$ 1.02

$ 1.01

$ 0.75

$ 0.74

$ 0.38

$ 0.37

137,509

619,913

256,875

44

2013 ANNUAL REPORT17. Quarterly Results (Unaudited)

The following is a summary of the quarterly results of operations for the years ending December 31, 2013 and 
2012:

2013

 Net sales 

 Gross profit 

 Net income 

 Earnings per share: 

Basic*

Diluted*

2012

 Net sales 

 Gross profit 

 Net income 

 Earnings per share: 

Basic*

Diluted*

Quarter

First

Second

Third

Fourth

(in thousands, except per share data)

 $ 66,833 

 $ 91,241 

 $ 89,690 

 $ 73,376 

15,312

7,140

$ 0.19

$ 0.19

27,676

12,119

$ 0.33

$ 0.33

26,616

10,522

$ 0.29

$ 0.28

20,188

7,766

$ 0.21

$ 0.21

 $ 64,957 

 $ 83,333 

 $ 76,816 

 $ 78,008 

13,518

4,567

$ 0.13

$ 0.12

21,103

9,297

$ 0.25

$ 0.25

17,149

6,007

$ 0.16

$ 0.16

18,729

7,578

$ 0.21

$ 0.21

 *Reflects three-for-two stock split effective July 2, 2013

18. Subsequent Events

On January 6, 2014, we purchased two plots of land totaling 38 acres near our Tulsa, Oklahoma production 
facilities for a combined purchase price of approximately $0.8 million.

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

Not Applicable.

45

Item 9A. Controls and Procedures.

(a) Evaluation of Disclosure Controls and Procedures

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

•  Our disclosure controls and procedures are designed at a reasonable assurance threshold 
to ensure that information required to be disclosed by us in the reports we file under the 
Securities Exchange Act of 1934 is recorded, processed, summarized and reported within 
the time periods specified in the SEC’s rules and forms; and

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

Our Chief Executive Officer and Chief Financial Officer have evaluated our disclosure controls and procedures 
and concluded that these controls and procedures were effective as of December 31, 2013.

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

Our management is responsible for establishing and maintaining adequate internal control over our financial 
reporting. Our internal control over financial reporting is a process designed by, or under the supervision of, 
our principal executive and principal financial officer, and effected by our board of directors, management 
and  other  personnel,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial  reporting  and 
the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  U.S.  generally  accepted 
accounting principles.

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

In making our assessment of internal control over financial reporting, management used the criteria issued 
by  the  Committee  of  Sponsoring  Organizations  of  the Treadway  Commission  (COSO)  in  the  1992  Internal 
Control—Integrated  Framework.  Based  on  our  assessment,  we  believe  that,  as  of  December  31,  2013,  our 
internal control over financial reporting is effective at the reasonable assurance level based on those criteria. 

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2013 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) Changes in Internal Control over Financial Reporting

There  have  been  no  changes  in  internal  control  over  financial  reporting  that  occurred  during  the  fourth 
quarter of 2013 that have materially affected, or are reasonably likely to materially affect, our internal control 
over financial reporting.

46

2013 ANNUAL REPORT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, 2013, based on criteria established in the 1992 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.

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

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

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

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of 
December 31, 2013, based on criteria established in the 1992 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, 2013, and our 
report dated March 13, 2014, expressed an unqualified opinion on those financial statements.

/s/ GRANT THORNTON LLP
Tulsa, Oklahoma
March 13, 2014 

47

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 20, 2014.

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 
Scott M. Asbjornson, 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 20, 2014.

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

The information required by Item 403 and Item 201(d) of Regulation S-K is incorporated by reference to the information 
contained in our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with 
our annual meeting of stockholders scheduled to be held May 20, 2014.

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 2014 annual meeting of shareholders 
scheduled to be held May 20, 2014.

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 2013, 
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 20, 2014.

48

2013 ANNUAL REPORTPart IV

Item 15. Exhibits and Financial Statement Schedules.

(a)  Financial statements.

(1)  The  consolidated  financial  statements  and  the  report  of  independent  registered  public  accounting  firm  are 

included in Item 8 of this Form 10-K.

(2)  The consolidated financial statements other than those listed at item (a)(1) above have been omitted because 

they are not required under the related instructions or are not applicable.

(3)  The exhibits listed at item (b) below are filed as part of, or incorporated by reference into, this Form 10-K.

(b)  Exhibits:

(3) 

(4) 

(10.1) 

(10.2) 

(21) 

(23) 

(31.1) 

(31.2) 

(32.1) 

(32.2) 

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 Eight to Third Restated Revolving Credit Loan Agreement (v)
(B) 

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

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

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

List of Subsidiaries (ix)

Consent of Grant Thornton LLP

Certification of CEO

Certification of CFO

Section 1350 Certification – CEO

Section 1350 Certification – CFO

(101) 

(INS)  XBRL Instance Document

(101) 

(SCH)  XBRL Taxonomy Extension Schema Document

(101) 

(CAL)  XBRL Taxonomy Extension Calculation Linkbase Document

(101) 

(DEF)  XBRL Taxonomy Extension Definition Linkbase Document

(101) 

(LAB)   XBRL Taxonomy Extension Label Linkbase Document

(101) 

(PRE)  XBRL Taxonomy Extension Presentation Linkbase Document

(i) 

(ii) 

(iii) 

(iv) 

(v) 

(vi) 

(vii) 

(viii) 

(ix) 

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

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

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

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

Incorporated herein by reference to exhibit to our Form 8-K dated July 29, 2012

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.

Incorporated 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. 333-52824.

Incorporated herein by reference to our Form S-8 Registration Statement No. 333-151915.

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

49

 
 
 
 
 
 
 
 
 
 
 
 
 
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 13, 2014

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 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

Dated: March 13, 2014

/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

50

2013 ANNUAL 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.

REBECCA THOMPSON
has served as the Chief Accounting 
the  Company  since 
Officer  of 
2012.  Ms.  Thompson  previously 
served  as  a  Senior  Manager  at 
Grant  Thornton,  LLP  where  she 
had  11  years  of  experience  in  the 
assurance  division.  Ms.  Thompson 
is  also  a  licensed  certified  public 
accountant.

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. 

51

BOARD OF DIRECTORS

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

NORMAN H. ASBJORNSON  
President/CEO

JOHN B. JOHNSON, JR. Secretary

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

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

A.H. MCELROY, II was elected as a director 
of  the  Company  in  2007.  From  1997  to 
present, Mr. McElroy has served as President 
and  CEO  of  McElroy  Manufacturing,  Inc., 
a  manufacturer  of  fusion  equipment  and 
fintube machines.

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

JERRY  R.  LEVINE  has  served  as  a 
director  of  the  Company  since  2008.  Since 
1999,  Mr.  Levine  has  provided  investor  and 
stockholder 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

52

Thanks 
TO OUR EMPLOYEES

Abrahm Abington
Martha Acosta
Andres Acosta-Lujan
Enriqueta Adame
Derrick Adams
Gary Adams
Kevin Adams *
Rodney Adams
Ryan Adams
Maria Aguayo
Arturo Aguilar
Lucia Aguilar
Miguel Aguilera
Nader Al-Hashmi
Daniel Alagdon
Frankie Alagdon
Javier Alba
Christopher Alden
James Alexander
Shannon Alford
Donald Allen
Kevin Allen
Earl Alston
Celia Alvarado
Luis Alvarado De La 

Cruz

Michael Amburgey
Sarah Andersen
Anthony  Anderson
Jose Andrada
Margarito Angeles
Wesley Anselme
Cedric Anthony
Latisha Anthony
Alfredo Antonio
Clyde Archer
Jose Argumedo Ruiz
Tom Armbruster
Thomas Armer, Jr.
Broderick Armstrong
Maria Arredondo *
Gerardo Arroyo
Norman Asbjornson
Scott Asbjornson
David Ashlock
Gary Ashmore
Dwight Austin
Joseph Avila
Ramiro Avila Castenada

Orlando Ayala
Nora Backus
Dwight Baker
John Baldwin
Miguel Barajas
Ruth Barba
Ray Barber
Gregory Barker, Jr.
Justin Barlett
David Barnett
Ana Barragan De 

Alteneh
Teresa Barron
Phillip Basham
Michael Bass
Stuart Baugh
Joshua Bawi Ling
Aaron Beavers
Daniel Beck
Lionel Beckman
Bonnie Benson
James Berden
Ida Bermudez
Sergio Beserra
John Bia
Daniel Bigby
Vickie Black
Brian Blackmon
Debbie Blackmon
Maria Blanco
Freddie Bledsoe, Jr.
David Blevins
Justin Blevins
Nicholas Bobbitt
Gene Boese
Mang Boi
Michael Boney
Dale Booher
Rosendo Botello
Lewis Bovee, Jr.
John Boyd
Justin Boyd *
Robert Boyd
Christopher Brantley
Arlando Brewer
Shahani Britt
Kwynce Brookins
Tre Brookins
Arlunda Brooks

David Brown
John Brown
Michael Brown
Johnny Brown, Jr.
James Bruce
Christopher Bryant
William Bryant
Jason Bunnell
Scott Burgess
Trevor Burke
Kelli Burkes
Monica Burns
Lavar Burton
Wayne Bush
Verenice Bustos
Rosa Butler
Konnor Buxton
David Bya
Janibal Cabudoy
Alejandro Cadena
Jesus Cadenas
Cleveland Cage, Jr.
Margarito Calderon
Matthew Cale
Jorge Calixto
Elizabeth Calvillo
Lazaro Cama
Maria Camacho
David Campbell
Arthur Candler
Don Canterbury
Refugio Carachure
Gilder Cardenas Ruiz
Billy Carder
Justin Cardoza
Lisa Carriero
Vincent Carson
Larry Carter, Jr.
Christopher Castle
Hector Cazares
Nicolas Ceballos Trujillo
Cornelio Ceja Grimaldo
Francisco Cervantes
Guadalupe Chairez-

Galan

Jonathan Chapman
Patrick Chapman
Francisco Chavero
Edgar Chavez

Gregory Chavez
Ramiro Chavez
Jose Chavez Perez
Dale Cherry
Daniel Cherry
Adan Chicas
Clifton Childers
Eddie Choates
Christopher Cichocki
Man Ciin
Hau Cin
Kham Cin
Sian Cin
Thang K Cin
Thang S Cin
Tg Cin Za Khai
Cing Cing
Dim Cing
Lun Cing
Man Cing
Nem Cing
Sian Cing
Justin Claiborne
George Clark
John Clark
Samuel Clark, Jr.
Stephanie Cleveland
William Cleveland
Brenda Coats
David Cochran
Kenneth Cochran
Troy Cockrum
Ronald Collins
Tim Collinsworth
Aaron Columbus
Bobby Conditt
Dale Conkwright *
Jude Connolly
Tracy Conwell
Mark Cook
Timothy Cook
Michael Coolidge
Scott Coon
Donna Coonfield
Allen Cooper
James Cooper
Alvis Copeland
Pablo Cordova Cordova
Roberto Corona

53

Thanks 

TO OUR EMPLOYEES

Genoveva Corona De Rivera
Miguel Cortez
Rosa Cortez
Billy Cox
Jerry Cox
Maurice Cox
Adrian Crabtree
Richard Craite
Steven Crase
Jacob Crayne
Juan Crespo-Maisonet
Mikel Crews
Darrell Crow
Carolyn Crutchfield
Jacinto Cruz Rodriguez
Victory Cullom, II
Robert Cummings
Kevin Cyrus
Gin Dal
Hau K Dal
Hau S Dal
Hau S T Dal
John Daniels
Justin Daniels
Charles Dauster
Jenifur Davidson
Byron Davis
Cameron Davis
Carolyn Davis
Cathy Davis
Chester Davis
Darryl Davis
Jerry Davis
Marleitta Davis
Rhonda Davis
Richard Davis
Samuel Davis
Susan Davis
Cookie Davison
Daniel De Casas
Yoana De La Torre
Jose De La Torre Garcia
Alvaro De Leon Mendoza
Freddie Deboe
Pong Dee
Bobby Degraffenreid
Ismael Delapaz
Eva Delatorre
Juana Delobo
Andres Delos Santos
Raquel Deluna
Shiira Demery
Bruce Derr

Jermein Devers
Audencia Devilla
Roy Deville
Charles Deweese
Anthony Diaz *
Ciin Dim
Hau Dim
Thang Dim
Rickey Dodson
Edreys Dominguez
Sol Dominguez
Thang Dong
Thang Dop Mui
Thomas Dreadfulwater
Seneca Drennan
Esmeralda Duarte
Cathryn Dubbs
Andrew Duhon
Linda Dunec
Charles Dunn
Ralph Durbin
Randy Dwiggins
Wendell Easiley
Jeffrey Easter
Austin Embry
Matthew Emery-Giuffre
Tinisha English
Eva Enriquez
Benjamin Epp
Steven Ervin
Teresa Escobedo
Norberto Esparza-Torres
Leonardo Espinoza Flores
Jesus Estrada-Gonzalez
Stephen Etter
Gilda Etumudor
Joshua Everett
Reginald Everidge, Jr.
Chad Evers
Shawn Fairley
Blake Faluotico
Keith Farmer
Richard Faust
Amy Fehnel
Robert Fergus
Catalina Fernandez
Samuel Fields
Thomas Fierros
Jesse Figueroa
Christian Figueroa Mauras
Sterlyn Finch
Anthony Fisher
Bruce Fisher

Rickey Fisher
Anthony Fizer
Copotenia Fletcher, Jr.
Carolina Flores
Diana Flores
Efigenia Flores
Juana Flores
Laura Flores
Gabriel Flores-Bernal
Ruby Floyd
Mark Fly
Sharon Fontenot
Eric Ford
Sheila Forrest
Crystal Forrester
Alex Foster
Bradley Foster
Christopher Foster *
Frederick Foster
Ramon Fourshey
Loretta Fowlkes
Kenneth Foyil
Michael Francis
Phillip Frank
Damion Franklin
Warren Franklin
Revonda Franks
Jose Fregoso
Olga French
Angel Frias
Brandon Frick
Barry Friend
Eric Friend
Wade Fuller
Jerry Gable
Rony Gadiwalla
Curtiss Gaines
Delano Galbreath
John Gall
Belinda Galvan
Angel Garcia
Jose Garcia
Roger Garcia
Wuilson Garcia Alvarado
Isidro Garcia Arriaga *
Norma Garibay
Michael Geeter
James George
Petr Getmanenko
Doyle Gibson Jr
Aaron Gilbert
Robert Gilbert
Paul Girod, Jr.

2013 ANNUAL REPORT

Penny Glossinger
Jose Gomez
Maria Gomez
Raquel Gomez
Luis Gomez Acuna
Maria Gomez Medina
Daniel Gomez-Sigala
Adrian Gonzalez
Consuelo Gonzalez
Imelda Gonzalez
Marisela Gonzalez
Oscar Gonzalez
Raul Gonzalez
Barry Goodson
Buenaventura Granados-

Rubios
Brian Gray
Michael Gray
John Griffin
Ronald Grimes
Daniel Groff
Jackie Grubb
Rodolfo Guevara
Carolina Guillen
Ronald Guinn
Georgina Guzman
Marcia Haley
Joshua Halfpap
Dennis Hall
Jack Hall
Kelly Hall
Koren Hall
Stephen Hall
Zachary Halsey
Scott Hamilton
Otis Hamilton
Jeffrey Hammer
Sam Hammoud
Mung Hang
Tyler Hardy
Natasha Harris
Stacey Harris
Marcus Harry
Robi Hartmann
Heather Haskins
Troy Hatfield
Pau Hau
Neng Hau Lian
Willie Hawkins
Billy Hawley, Jr.
Tim Hefflin
Antonio Henderson
Daniel Henderson

Kyle Hendrick
Kevin Henson
Edith Heredia De Birrueta
Armando Hernandez
Corcina Hernandez
Lily Hernandez
Linda Hernandez
Luis Hernandez
Maria Hernandez
Mariano Hernandez
Mark Heston
Ronald Hicks
Takeo Higa
Brenda Higgins
Larry Highfield
Cortez Hill
Juan Hinojosa
Tyson Hinther
Bon Hoang
Samuel Hobson
Jarrod Hoggatt
Robert Hollins
Lamario Hollis
Donna Holloway
Daniel Honel
Lawrence Honel
Derek Hooks, Jr.
Stephen Hoover
Adam Hopper
Kevin Horn
Terri Horn
Stanley Horton
David Howard
Larry Howard
James Howell, II
Saw Htoo
Do Ngaih Huai
Nuam Huai
Lydia Hudson
Philip Hudson
Brenda Huether
Jimmy Hughes
Fiona Humphrey
Larry Humphrey
Khan Hung
Jade Hurst
Cody Hutchcraft
Ronald Hutchcraft
Gary Hutchins
Cindi Hutton
Tan Huynh
Okechukwu Ibeh
Alexander Ignatenkov

54

Thang T Kim
Thang Z Kim
Dennis Kimbrough
Joseph King
Lori King
Randy King
Russell King
Roger Kinkade, Jr.
Alan Kizer
David Knebel
Scott Koscheski
James Koss
Jeffery Krauss
Larry Kreps
Mikhail Krupenya
Thu Kun Hen
Phillip Lafond
Giang Lai
Do Lal
Lun Lal
George Lam
Gin Lam
Mang Lam
Cole Lambert
Myoshia Landrum
Deborah Lane
Gin Lang
Kap Lang
Pum Lang
Kap Langh
Thawng Langh
Martin Larsen
Michael Lavallee
Jeffrey Lawson
Walter Lazcano
Anh Le
Lai Le
Rickey Leatch
Michel Lebel
Jose Lebron
David Lee *
Gralind Lee
Jacqueline Lee
Rhonda Lee
Kevin Lee, Jr.
Matthew Leeper
Pao Len
Hugo Lerma
Boy Let *
Spencer Lewis
Cynthia Leyva
Bawi Lian
Cin Lian

Cing K Lian
Cing T Lian
Do Lian
Gin Lian
Hau Lian
Kam Lian
Lal Lian
Nang Lian
Sang Lian
Sing Lian
Tha Lian
Thang H Lian
Thang K Lian
Tuan Lian
Ping Lin
Israel Linares
Jerry Lincoln
Thomas Lincoln
William Lindsay
Darryl Liner
John Livingston
Jonathan Lockmiller
Gabriel Lopez
Margarito Lopez
Rafael Lopez
Rebecca Lopez
Thomas Lopez
Jason Lovett
Paul Lowery
Oscar Lozano
Jarrod Ludlow
Quannah Ludlow
Cing N Lun
Cing Ngai Lun
Dim Lun
Lu Lun
Mariana Luna
Kelly Lybarger
Gregory Mack
Jorge Madrigal
Tam Mai
Carlos Malone
Jeffrey Maly
Ciin Man
Cing Man
Maria Mancilla
Cin Mang
Dai Mang
En Mang
Gin Mang
Hau Mang
Hem Mang
Kham Mang

Kham T Mang
Khup Mang
Lhun Mang
Lian Mang
Lian Mang
Ngin Mang
Sian Mang
Thang K Mang
Thang Khan Mang
Vung Mang
Thang Manga
Adam Mansfield
Melody Maradiaga
William Markwardt
Ma Marquez De-Gilbreath
Mariana Marquez Marquez
Ana Marroquin
Errol Marshall
Parker Martel
Cassandra Martin
Jerrad Martin
Florentino Martin-Romo
Daniel Martinez
Juan Martinez
Julio Martinez
Karen Martinez
Moses Martinez
Obdulia Martinez
Hector Martinez Molina
Ryan Marts
Timothy Marvin
Thomas Masengale, Jr.
Beverley Mason
James Mason
Sandra Mata
Charles Mattocks, IV
Ron Mauch
Leonard Maxwell
Duane Mayfield
Marcus Mayfield
Latoya Mays
Gina Means
J Medina Olvera
James Melton
Silvestre Mendez Gonzales
Kevin Merideth
Dale Michelson
Carmen Milam
Glenn Milam
Jordan Miles
Michael Miles
Ranulfa Milian
Chris Miller

2013 ANNUAL REPORT

Samuel Ingram
Belinda Jackson
Jeff Jackson
Levita Jackson
Scaasi Jackson
Terrell Jackson
Jose Jamaica
Lucia Jaramillo
Joseph Jelinek, Jr.
Jason Jewell
Genelle Jimboy
Samuel Jimison
Frederick Jimmerson
Ashley Johnson
Ed Johnson
Holly Johnson
Terry Johnson
Cheryl Jones
Danny Jones
David Jones
Henry Jones
Jeremy Jones
Raymon Jones
Remia Jones
Rose Jones
Timothy Jones
James Jones, Jr.
Jason Jordan
Sean Jordan
Jaime Juarez
Leandro Jumelles Nunez
Ha Ka Ha
Garrett Kaiser
Patrick Kaiser
Do Kam
Hau Kam
Khual Kam
Mang Kam
Ngin Kam
Pau Kam *
Thawng Kam
Dal K Kap
Dal S Kap
Gin Kap
Kam Kap
Lian Kap
Thang Kap
Thong Kap
Brian Kastl
Adam Kauffman
Eryn Kavanaugh
Tuang Kawi
Kenneth Kawuma

Brandon Kelley
Aaron Kelly
Brian Kelsey
Zackary Kemper
Gregg Kennedy
David Keys
Cin Khai
En Khai
John Khai
Kham Khai
Mang Khai
Nang Khai
Pau Khai
Peter Khai
Thang H Khai
Thang K Khai
Thang S Khai
Thang Suan Khai *
Thang Sza Khai
Thawng Khai
Vuum Khai
Dongh Kham
Go Kham
Mung Kham
Ngun Kham
Cing Khawn
Cin Khin
Niang Khoi
Dai Khual
Khai Khual
Thang L Khual
Thang S Khual
Za Khual
Deih Khup
Kap Khup
Lang Khup
Lian Khup
Nang Khup
Ngin Khup
Pau Khup
Thang K Khup
Thang S Khup
Tuan Khup
Alan Kilgore
Andrew Kilgore
Rodney Kilgore
Cin Kim
Cing N Kim
Cing Nuam Kim
Cing Kim
Hau Kim
Kap Kim
Thang D Kim

55

Mykea Miller
Mark Mills
Brian Mingle
Dallas Mitchell
Orlando Mitchell
Travis Mitchell
Wayne Mitchell
Jay Modisette
Ronald Modlin
Biasney Mojica Castaneda
Jose Molina
Enoc Montes
Jon Moody
Herbert Moore
James Moore
Kashonda Moore
Marc Moore
Maria Moore
Tony Moore
Trey Moore
Alfonso Moran
Tony Morehead
Edward Moreland
Berta Moreno
Erasmo Moreno Medina
Jason Moretz
Jason Morgan
Matthew Morgan
Phillip Moss, Jr.
Clayton Mote
Stephanie Mounce
Seth Mowery
Do Muang *
Sevgi Muhammad
Eric Mulliniks
Thang Mun
Dal Mung
En Mung
Gin Mung
Hau Mung
Kam Mung
Khai Mung
Khual Mung
Khup Mung
Khup G Mung
Lang Mung
Lian Mung
Pau Mung
Suan G Mung
Suan S Mung
Thang K Mung
Thang L Mung
Thang S Mung

Vum Mung
Vung Mung
Zam Mung
Gabriel Muniz Gonzalez
Jesus Munoz
Rebeca Munoz
Eduardo Murillo-Munoz
David Myers
Laharry Myers
Courtney Mcafee
Tina Mcbeath
Robert Mcbowman
Robert Mccleary
Dirk Mcclellan
James Mccondichie
Michael Mcconnell
Roy Mcconnell
Corey Mccowan
Debra Mccowan
Wesley Mccowan, Jr.
Paula Mccrary *
Michael Mccuin
Kathy Mcculloch
Vickie Mccullum
Loyd Mcdaniel
Randall Mcdaniel
James Mcelroy
Deborah Mcfarlin
Michael Mcillwain
Daniel Mckee
Domingo Mcknight
Sing Nang
Thawng Nang
Thomas Nang
Jesus Nava *
Jose Nava
Maria Nava
Abel Navejas
Clayton Neal
Samuel Neale
Natalie Neilson
Ciin Neu
Tha Nge
Haunung Ngin Pi
Than Ngio
En Ngo
Duong Nguyen
Hoang-Chi Nguyen
Phuoc Nguyen
Thanh Nguyen
Cing Niang
Dim L Niang
Dim N Niang

Go Niang
Mang Niang
Karen Niles-Blayer
Robert No
Thang No
Shiblee Noman
Nuam Noo
Christopher Norfleet
Willie Norfleet
Robert Norfleet, Jr.
Eric Norris
Tumai Npawt
Ning Nuam
Let Nung
John Nutt
Michael O'Brien
James O'Neill, Jr.
Deangelo Oakley
Alexander Ofosu
Rickey Ogans
John Ogle
Maria Olivas De Torres
Kejuan Oliver
Anthony Oliveras
Eric Olson
Sunday Omasere
John Ondinyo
Benjamin Orme
Leticia Orona
Margarita Orona
Maria Orona
Margarita Orozco Dehuizar
Carlos Orozco-Torres
David Osborne
Ofelia Osuna
Jennifer Overmeyer
Trevin Owens
Martin Ozura-Carrillo
Earnest Pace, Jr.
Gerard Pacheco
Guillermo Pacheco
Luis Pacheco
Mark Page
Edmundo Paiz
Julianne Palmer
Candido Palomo
J Paniagua
Eric Pate
Jason Pate
Kimberly Pate
Corry Patterson
Chin Pau
Ciang Pau

56

Cin Pau
Dai Pau
Gin S Pau
Gin Sian Pau
Gin Suan Pau
Go Pau
Kam L Pau
Kam S Pau
Kam Sian Pau
Langh Pau
Lian S Pau
Lian Suan Pau
Liang Pau
Nang Pau
Neng H Pau
Neng K Pau
Thang Pau
Zam Pau
Mani Pazhanathadalam
Travis Pearson
Vladimir Peniaz
Adam Pense
Cesar Perez
Sergio Perez
Hector Perez Arias
Kimberly Persons
John Peters *
Ladrue Peters *
Anita Peterson
Emmitt Pettigrew, Jr.
Daniel Peurifoy
Kinh Pham
Anh Phan
Randy Phelps
Alexander Phillips
Brandon Phillips
Michael Phillips
Alexander Phomprida
Thomas Pi
Tuang Pi
Goh Piang
Khup Piang
Pau Piang
Thang K Piang
Thang L Piang
Thang Lamp Piang *
Van Piang
Zam Piang
Christopher Pickens
Shedrica Pickett *
Pedro Pina-Valles
Jose Pineda
Dixan Pita Mendez

Clifford Pitchford
Hunter Pittman
Michael Plummer
Susanne Poindexter
Basant Pokhrel
Renu Pokhrel
Htinram Pongkum
Mark Pool
Javorus Poole
Rudy Powell
Greg Powers
Jeffery Powers
Jose Prado
Kenneth Prentice, Jr.
Eric Prickett
Denzel Prudhomme
Lian Pu
Alma Puga
Daniel Puga, Jr.
Thang Puno
Darrell Purser
Javier Quezada
Mahfuzar Rahman
Adrian Ramirez
Antonia Ramirez
Raymon 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.
Margaret Reeves
Russell Reeves
Alberto Rendon Parra
Rodolfo Renteria
Svyatoslav Reshetov
Agustin Reyes, Jr. *
Thomas Reynolds
Daniel Rhoades
James Rice
Robert Riddell
Angela Rideout
Brett Riegel *

Brian Riggs
Delmecio Riser
Stephen Riser
Hillary Rite
Ramon Rivera
Jesus Rivera, Jr.
Yusef Roberts
Markus Robertson
William Robinson, Jr.
Diana Rodriguez
Francisco Rodriguez
Gilberto Rodriguez
Hector Rodriguez
Maria Rodriguez
Rebecca Rodriguez
Rivelino Rodriguez
Jesus Rodriguez 
Santibanez
J Rodriguez-Flores
Don Rogers
Samantha Rogers
Tony Rogers
Lidia Rojas
Nelson Rojas
Oscar Rose
Catherine Ross
Richard Rowe, Jr.
Thomas Royal
Ricardo Ruiz
Ava Russell
John Russell *
Adan Salazar
Nora Salazar
Walter Salazar
David Saldivar
Maria Saldivar
Miguel Saldivar
Victor Saldivar
Jose Saldivar Orepeza
Alejandro Salinas
Jessica Samaroo
Beatriz Sanchez
Hector Sanchez
Tara Sanchez
Esperanza Sanchez 

Ruiz

Luis Sanchez-Lopez
Christina Sanders
Tanisha Sanders
Michael Sandor, Jr.
Cin Sang
Lian Sang
Thang Sang

Thiam Sang
Agustin Santana
Wenceslao Santiago
Basilisa Santiago Avila
Harold Santiago Torres
Carlos Santiago Torrez
Ignacio Santillan
Pedro Santillan
Rebecca Sar
Erick Sawyer
Frank Scanlon
William Scharosch
Vivian Scroggins
Hou Sei
Ku Sei
Let Sei
Thang Sei
Maria Serrano De 

Torres

Carrol Shackelford
Douglas Sheehan
Kathy Sheffield
Brandon Shelton
Vasiliy Shemereko
Kathleen Shepard
Jackie Shephard
Lynnda Shepherd
Michelle Shrum
Disciple Sian
Pau Sian
Nelson Sierra
Armando Silva Canela
Cory Simmons
Dwayne Simpson
James Simpson, II
Daai Sing
Dal Sing
Do Sing
Kap Sing
Mang Sing
Nang Sing
Thang Sing
Thawn Sing
Christopher Sissom
Amy Siviero
Michael Skinner
Ian Slattery
Danny Slayton *
Llewellyn Slayton
Debi Sloan
Melissa Sloan
Larry Slone
Brett Smith

57

2013 ANNUAL REPORT

David Smith
Jordan Smith
Owen Smith
Renaldo Smith
Ricardo Smith
Ryan Smith
Sweetie Smith
Anthony Smith, Jr
Wilbert Smith, Jr.
Kap So Te
Carlos Soberano Gomez
Showe Soe
Jose Solares *
Malcolm Soles
Maria Solis
Nemisia Solis
Clent Southerland, II
Kevin Souvannasing
Denney Sowder
John Spain, III
Ronnie Sparks *
Jameson Spires
Michael Sportel
Lawana Stane
Vincent Steadman
Larry Stewart
Brent Stockton
Kevin Stoddard
Scott Stoltzfus
Edwin Stone
Dramone Stover Sr
Michael Straub
Billy Strength
Hau Suan
Ngin Suan
Thang Suan
Zen Suan
Nang Sum
Victor Sum
Pau Sut
Jack Sweet
Eric Sypert
Kam Ta
James Taber
Ryan Tankersley
William Tankersley
Joe Tart
Larry Tate
Mark Tate
Tenna Tatum
Mung Tawng
Charles Taylor
Deborah Taylor

Eric Taylor
Shakela Taylor
Stevon Taylor
Andrea Teakell
Kevin Teakell
Robert Teis
Jose Tellez
Cin Thang
Cin L Thang
Cin L Thang
Cin M Thang
Dai Thang
Dal Thang
Gin Thang
Go Thang
Go Z Thang
Hau Thang
Kam G Thang
Kam K Thang
Kam Kap Thang
Kham S Thang
Kham Suan Thang
Khan Thang
Lian Thang
Lin Thang
Mang Thang
Ngin Thang
Ngo Thang
Pau Kap Thang
Pau Kim Thang
Pau Sian Thang
Pau Suan Thang
Pau Sum Thang
Suan Thang
Thawng Thang
Tual Thang
Tuan Thang
Lian Thang Lam
Kap Thang Lian
Kham Thawn
Suan Thawn
Thang Thawn
Lang Thawng
Zam Thawng
Gerald Thomas
John Thomas
Richard Thomas
Cheryl Thomason
Archie Thompson
Rebecca Thompson
Michael Thornton
Tuan Thung
Jessica Thurber

Ted Tiger
Go Tin
Gabriela Tirado
William Tobar
Bradon Toothman
Breny Tornes
Reinaldo Torres
Travis Traeger
Hiep Tran
Tuong Tran
Mark Tribble
Ha Trinh
Juanito Tronzon
Cin Tuang
Kam Tuang
Kham Tuang
Pau Tuang
Sing Tuang
Suum Tuang
Thang L Tuang
Thang Za Tuang
Thang Za Tuang
Tun Tuang
Vung Tuang
Zam Tun
Gin Tung
Kaam Tung
Thawng Tung
Paul Turbe
David Turley
Charles Turner
Phyllis Tyiska
James Tyler
Jacob Tzang
Jesus Tzul
Ni Uk
Dawn Underwood
Pernell Underwood
Colton Upchurch
Tony Urich
Maria Urquiza
Yadira Urquiza
Richard Valluzzi, Jr.
Zachary Vance
Allen Vang
Sua Vang
John Vanness
Shawn Vawter
Juan Vazquez
Mercedes Vela Casanova
Antonio Velasco
James Velde
Juan Vences

Angel Venegas
Salome Vera
James Verhamme
George Verrett
Timothy Vetting
Teresa Victory
Efrain S Villa
Efrain Sanchez Villa
Louis Vincent
Selina Viramontes
Cuong Vo
Tong Vo
Thu Vu Nguyen
Houa Vue
Lian Vum
Cing Vung
Mary Vung
Ning Vung
Mark Wakefield
Stephen Wakefield
Whitney Wakefield
Diana Walker
Joshua Walker
Patrick Walker *
Roderick Walker
David Walkup
Barry Wall
Kim Wallace
Robert Wallace
Todd Wallingford
Leslie Wallis, Jr.
Darius Walters
Gayle Ward
Perry Warner
Nugene Warren
Ryan Warren
Steven Watkins
Kyle Webb
Anthony Welch
Jerremy Welch
Arthur Wells, IV
Sharon West
Deborah Whitaker
Mike Whitaker
Sheila Whitaker
Johnny Whitaker, Jr
James White
Timothy White
David Whitlock
Steven Whorton
Gordon Wichman
Jason Widdoes
Jackie Wiles

Jerry Wiles
Michael Wiles
Matthew Wilkins
Sherri Wilkins
Stanley Wilkins
Duane Wilkinson
James Wilkinson
Chante Williams
Cheray Williams
Demarco Williams
Donna Williams
Kristy Williams
Latrenia Williams
Nicole Williams
Robert Williams
Rodney Williams
Aaron Williamson *
James Williamson
Jeremy Williamson *
Brandi Wilson
Daniel Wilson
Isaac Wilson
James Wilson
Kenneth Winchester
Thomas Wingo
Wanda Winkfield
Micah Wisdom
Bret Wissman
Jack Witt, Jr.
Stanley Womack, Jr.
Curtis Wood
Ronald Wood
Brandon Workman
Kasey Worthington
Jim Wyrick
Linda Wyrick
Ector Yancey, Jr.
Patrial Yarbrough
Eddie Young
Keith Young
Marc Young
Patricia Young
Nikolay Zagorodniy
Lang Zah Lang
Nu Zam
Aurora Zavaleta
Luis Zepeda
Juan Zermeno
Virginia Zermeno

* Pictured

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

58

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