AAON
Annual Report 2008

Plain-text annual report

efficiency AAON is a global leader in providing equipment with environmentally responsible designs. AAON utilizes extensive product knowledge and state of the art manufacturing to continuously provide a wide variety of energy efficient and earth friendly features to the dynamic marketplace. The success of our commitments can be seen in the consistent growth of our sales and the increasing profitability of the company. ef fi ci en cyCOmpAny prOfile OutdOOr Air HAndling units indOOr Air HAndling units RM SeRieS RL SeRieS H2 SeRieS SA SeRieS V2 SeRieS HB SeRieS RN SeRieS M2 SeRieS M3 SeRieS F1 SeRieS COndensing units CHillers BOiler CL SeRieS CA SeRieS LL SeRieS AiR—CoNdeNSed LL SeRieS eVApoRAtiVe—CoNdeNSed BL SeRieS CC SeRieS CB SeRieS LC SeRieS AiR—CoNdeNSed CustOm units rOOftOp units MN SeRieS dt SeRieS NJ SeRieS RL SeRieS RN SeRieS RM SeRieS HB SeRieS AAON is engaged in the engineering, manufacturing, marketing and sales of air conditioning and heating equipment consisting of residential and commercial semi–custom and custom products, including: air handling units, geothermal and water source heat pumps, condenser and condensing units, chillers, boilers, mechanical penthouses, rooftop units, makeup air units, heat recovery units and coils. Since the founding of AAON in 1988, AAON has maintained a commitment to design, develop, manufacture and deliver heating and cooling products to perform beyond all expectations and demonstrate the value of AAON to our customers. AAON provides specific and unique solutions for individual customer requirements. AnnuAl RepoRt finAnCiAl HigHligHts Income Data ($000) Net Sales Gross Profit Operating Income Interest Expense Interest Income Depreciation Pre-Tax Income Net Income Earnings Per Share (Basic)1 (Diluted)1 Balance Sheet ($000) Working Capital Current Assets Net Fixed Assets Accumulated Depreciation Cash & Cash Investment Total Assets Current Liabilities Long-Term Debt Stockholders’ Equity Stockholders’ Equity per Diluted Share1 Funds Flow Data ($000) Operations Investments Financing Net Increase (Decrease) in Cash Ratio Analysis Return on Average Equity Return on Average Assets Pre-Tax Income on Sales Net Income on Sales Total Liabilities to Equity Quick Ratio2 Current Ratio Year-End Price Earnings Ratio1 1 Reflects 3-for-2 stock split in August 2007 2 Cash, cash investments + receivables/current liabilities. 2008 2007 2006 2005 2004 $279,725 $67,176 $43,388 $71 $27 $9,412 $44,068 $28,589 $262,517 $57,369 $35,666 $10 $8 $9,665 $35,343 $23,156 $231,460 $43,890 $25,831 $81 $24 $9,146 $26,198 $17,133 $185,195 $35,291 $17,814 $16 $67 $8,503 $18,332 $11,462 $171,885 $26,864 $11,650 $38 $183 $5,732 $12,379 $7,521 $1.63 $1.60 $1.24 $1.22 $0.93 $0.90 $0.62 $0.60 $0.40 $0.39 $40,600 $80,118 $60,550 $72,269 $269 $140,743 $39,518 $121 $96,522 $5.61 $38,788 $76,295 $60,770 $63,579 $879 $137,140 $37,507 $239 $95,420 $5.29 $33,447 $(9,593) $31,247 $(10,751) $(24,460) $(20,036) $(610) $591 29.8% 20.3% 15.8% 10.2% 0.5 1.0 2.0 13 24.8% 16.9% 13.5% 8.8% 0.4 1.1 2.0 16 $36,356 $70,759 $59,222 $54,182 $288 $130,056 $34,403 $- $91,592 $4.95 $19,428 $(16,781) $(3,333) $(549) 20.0% 13.2% 11.3% 7.4% 0.4 1.1 2.1 19 $33,372 $62,950 $50,581 $45,062 $1,837 $113,606 $29,578 $59 $79,495 $4.33 $11,966 $(8,189) $(4,200) $(157) 15.2% 10.1% 9.9% 6.2% 0.4 1.2 2.1 20 $27,939 $55,998 $49,229 $37,017 $3,994 $105,227 $28,059 $167 $71,171 $3.84 $16,159 $(11,741) $(9,857) $(5,192) 10.9% 7.1% 7.2% 4.4% 0.5 1.1 2.0 27 08 president’s letter Dear Shareholder, Not only are we devoted to increasing the operating Return on average equity This past year was an eventful one for AAON. We celebrated efficiency of the equipment we manufacture, we are also is an important financial our twentieth year in business and, despite the difficult intent on improving the efficiency of our manufacturing and measurement. It exhibits the economic environment, we achieved record results for both administrative processes. These improvements have led to a Company’s ability to deploy its sales and earnings. We benefited from stable raw material noticeable gain in productivity. Specifically, since 2005 our investment dollars to generate prices in the last half of the year and, as our manufacturing sales increased 51.0% from $185.2 million to $279.7 million, earnings growth. In 2008, and marketing efforts continued to mature, our gross margins while our net income rose 148.7% from $11.5 million to $28.6 our return on average equity exhibited further improvement. SG&A expenses increased, million. During that same period, it is significant to note that advanced to 29.8% from 24.8% reflecting both higher warranty accruals and bad debt our total employee count remained essentially the same, at a year earlier. reserves, however, operating margins were still able to widen approximately 1,400. significantly. AnnuAl RepoRt “We celebrated our twentieth year in business and, despite the difficult economic environment, we achieved record results for both sales and earnings. We benefited from stable raw material prices We continued to intensify our manufacturing effort to provide products which focus on energy efficiency and quality. Aided by the excellent response to the innovations recently introduced into our product lines, we posted a 6.6% increase in total sales to $279.7 million from $262.5 million. Gross profits in 2008 rose 17.1% to $67.2 million (24.0% of sales) compared to $57.4 million (21.9% of sales) in 2007. SG&A expenses increased 9.7% to $23.8 million (8.5% of sales) from $21.7 million (8.3% of sales), however, operating margins improved to record levels as operating income climbed 21.6% to $43.4 million (15.5% of sales) from $35.7 million (13.6% of sales). Net income increased 23.3% to $28.6 million or $1.60 per diluted share from $23.2 million or $1.22 per diluted share. The per share calculations are based upon 17.9 million diluted shares outstanding in 2008 and 18.9 million diluted shares outstanding in 2007. Strong Financial Condition Our financial condition at December 31, 2008, remained strong. Total current assets were $80.1 million with a current ratio of 2.0. Despite $9.6 million of capital expenditures, the repurchase of our common stock at a cost of $24.8 million, and dividend payments of $5.8 million, we maintained a strong liquid position while having minimal long-term debt. In 1999 and 2002, the Company initiated stock repurchase programs of 1.1 million shares and 1.9 million shares, respectively, with AAON’s excellent financial performance was again acknowledged by the financial in the last half of community. Once again, for the year and, as our the second consecutive year, AAON was selected to the Forbes 200 Best Small Companies list, ranking 150th. Inclusion on the Forbes list manufacturing and marketing efforts continued to mature, our gross margins requires companies to meet a exhibited further shares repurchased at a cost of $36 million. In November 2007, series of financial benchmarks improvement.” the Board of Directors authorized a new stock buyback of up to 10% (approximately 1.8 million shares) of the outstanding common stock. By the end of 2007, we acquired 690,300 shares at a cost of $13.0 million. During the past year we acquired 1,001,958 additional shares at a cost of $20.7 million. In addition, we bought 79,750 shares of stock from certain including return on equity, sales growth and profit growth over the past year and also over five years. The Company was also previously honored in this listing for three consecutive years from 2000-2002. Capital Expenditures directors of the Company and 129,830 shares from AAON’s In order to accommodate our future growth, we continue to 401(k) savings and investment plan. We spent $4.1 million expand both our plant and machinery capacity. In 2008, we on these purchases. We funded these stock buybacks out spent $9.6 million on capital improvements with emphasis on of our cash flow. We believe our sizeable cash flow enlarging our RL (45-230 tons) production line, doubling our can be best utilized by repurchasing our common stock at RN (26-70 tons) production line and adding two air handler prices that do not reflect our true value. lines as well as increasing our warehouse and storage space. 08For 2009, we are budgeting capital expenditures of between $7-8 million. The bulk of these expenditures will be devoted to completing the programs started last year. In addition, we plan to increase our machinery capacity with the purchase of additional metal fabricating equipment At the end of 2008, our machinery capabilities could accommodate annual volume of up to $350-$400 million depending upon our product mix. SA SeRieS This lease expires on May 31, 2009. We will begin to renovate the property in the last half of the year. Eventually, we expect to utilize this total space which could double our manufacturing capacity to $700-$750 million. We are extremely pleased to have been acknowledged by our customers this past year. In Consulting-Specifying In 1998, we purchased a 40 acre tract of land including a 457,000 square foot manufacturing/ warehouse building. This property has been expanded to 683,000 square feet and by the end of 2008 we utilized 39% of the property with the remainder leased to a third party. Engineer’s annual product competition, a panel of judges chose gold, silver and bronze winners in 11 different categories. The “Product of the Year Awards” recognize the top new products in Mechanical, Electrical and Plumbing engineering categories, which includes HVAC systems. Entries were screened by a panel of engineers and the finalists were presented in the Specifiers’ “Once again, for the second consecutive Guide published in the May 2008 issue. AAON’s Digital year, AAON was selected to the Forbes 200 Best Small Companies list, ranking 150th. Inclusion on the Forbes list requires companies to meet a series of financial benchmarks including return on equity, Precise Air Control (D-PAC) not only won the gold medal in the HVAC segment, but was also named the overall 2008 Most Valuable Product. The demand for manufactured products that are more energy efficient and environmentally friendly from both customers sales growth and profit growth over the and regulators has changed the character of production past year and also over five years.” methods throughout the HVAC industry. Over the past four Energy-Quality manufacture of double wall composite foam panels for the In addition, AAON has become the industry leader in the “We have expended the capital, time and labor to develop a product line which AnnuAl RepoRt years, AAON has expended a significant amount of capital approximately 60% of our product line. By 2010 we anticipate and manpower to redesign its product line to meet these our entire product line will include the direct drive blower demands. assemblies as a standard item. Our entire product line is designed to use R410A, an The Variable Capacity Scroll Compressor environmentally friendly refrigerant. This adheres to the EPA mandate that by 2010 all manufactured HVAC equipment must use refrigerants that do not contain chlorine, thereby reducing the effect of ozone depletion in the atmosphere. This compressor is the first major advance for the smaller (less than 50 tons) sized equipment market we have witnessed in the past two decades. The compressor varies the volume cabinets of its products. Foam, rather than fiberglass, creates is regarded as the most technologically a cabinet which is lighter, stronger and better insulated. The innovative in our business. These thermal resistance, R-value, of these cabinets is more than four times that of the traditional fiberglass product. The response from our customers to this new feature has been exceptional. At year-end 2008 approximately 60% of our total sales included the new foam insulation as a standard feature. We expect that, innovations, which directly address the two major industry concerns, energy efficiency and environmental compatibility, have met with very positive by the end of the third quarter of this year, our entire product response from our customers.” line will be manufactured using foam insulation. We have taken another significant step toward increasing the efficiency of our product line, thereby improving the performance and creating further energy savings. Three years ago we introduced our direct drive blower assemblies that operate without drive belts, which eliminate the need to adjust or replace fan belts. These assemblies operate with our airfoil backward curved fan, creating a blower system that is much more efficient than the traditional belt-driven forward curved fan system. Presently these assemblies are available on lC SeRieS AiR— CondenSed 08 AnnuAl RepoRt of refrigerant flowing through the cooling system, allowing witness increased demand for our water cooled products since Our Employees the compressor to match the load needed by the unit. This they are used in geothermal installations. modulating capability has yielded energy savings of between 10-40% over conventional control techniques. In addition, Sales Representatives’ Performance Our ability to attract and retain talented personnel remains a critical component to the Company’s success. The design of our compensation and benefit programs attempts to reward the compressor will run for a longer time, dehumidifying the air and cycling the compressor on and off less, resulting in Once again, our sales representatives provided a major employees for attaining goals that help both the Company catalyst to our revenue growth, while enabling the Company and themselves while respecting each person’s individuality additional energy savings. Geothermal to continue diversifying its customer mix. At the end of and personal responsibility. 2008, our representatives’ network had 106 offices in all 50 states and Canada. The diversification of our customer mix The sharing of profits equally among employees is one of The air-cooled condenser has traditionally been used in the combined with our innovative product line, emphasizing a our largest motivational tools for near-term achievement. rooftop market as it is both less expensive and less complicated more environmentally friendly and energy efficient product, We calculate the pre-tax profits at each operating to install than water-cooled condensers. While the water- enabled AAON to obtain a growing share of the market. With subsidiary and distribute 10% of those profits equally to all cooled equipment is more energy efficient, the higher costs the help of our manufacturers’ representatives we were able to employees who were employed for the full calendar quarter. involved have usually restricted demand for this product. offset weakness in demand in some of our end markets while The structure of this program provides rewards to employees Geothermal tax incentives have recently been enacted at both witnessing growth in other market segments. We believe they from the early stage of their employment and motivates the federal and state levels that will provide tax savings for will continue to play a major role and contribute significantly employees to maximize quarterly performance. To create both developers and users of geothermal energy. We expect to to our future growth. a longer performance horizon, the company 401(k) plan creates an equity position for employees that rewards “Once again, our sales representatives length of employment along provided a major with company stock growth. catalyst to our revenue Since 2004, the company has moved its 401(k) plan to an aggressive, active system which automatically enrolls growth, while enabling the Company to continue diversifying its customer mix. employees upon their At the end of 2008, first day of work. We also our representatives’ instituted automatic increases up to 15% of income for current participants and re- enrollment for employees network had 106 offices in all 50 states and Canada.” who may not be participating. The company matches employee contributions 50% through the first 9% of income saved. the ongoing SuCCeSS of ouR CompAny CAn be diReCtly AttRibuted to ouR employeeS. September Purchase of John Zink Air Conditioning Division. September Purchase of John Zink Air Conditioning Division. December Formed AAON Coil Products, a Texas Corporation, as a subsidiary to AAON, Inc. (Nevada) and purchased coil making assets of Coils Plus. December Formed AAON Coil Products, a Texas Corporation, as a subsidiary to AAON, Inc. (Nevada) and purchased coil making assets of Coils Plus. March Purchase of property with 26,000 square foot building adjacent to AAON Coil Products plan in Longview, Texas. Issued a 10% stock dividend. March Purchase of property with 26,000 square foot building adjacent to AAON Coil Products plan in Longview, Texas. Issued a 10% stock dividend. Spring AAON purchased, renovated and moved into a 184,000 square foot plant in Tulsa, Oklahoma. Introduced a new product line of rooftop heating and air conditioning units 2-140 tons. Spring AAON purchased, renovated and moved into a 184,000 square foot plant in Tulsa, Oklahoma. Introduced a new product line of rooftop heating and air conditioning units 2-140 tons. September One-for-four reverse stock split. Retired $1,927,000 of subordinated debt. September One-for-four reverse stock split. Retired $1,927,000 of subordinated debt. September September Completed expansion of the Completed expansion of the Tulsa facility to 332,000 Tulsa facility to 332,000 square feet. square feet. April AAON received U.S. patent for Blower Housing assembly. 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. October U.S. patent granted to AAON for air conditioner with energy recovery heat wheel. Fall Fall Expanded rooftop product line Expanded rooftop product line to 230 tons. Introduced evaporative to 230 tons. Introduced evaporative condensing energy savings feature. condensing energy savings feature. 3-for-2 stock split. 3-for-2 stock split. May Purchase of the assets of Air Wise, of Mississauga, Ontario, Canada. May Purchase of the assets of Air Wise, of Mississauga, Ontario, Canada. June Initiation of a semi-annual cash dividend for AAON shareholders. June Initiation of a semi-annual cash dividend for AAON shareholders. June 3-for-2 stock split. June 3-for-2 stock split. Spring Completed Tulsa, Oklahoma, and Longview, Texas, plant additions yielding a total exceeding one million square feet. Spring Completed Tulsa, Oklahoma, and Longview, Texas, plant additions yielding a total exceeding one million square feet. July July AAON added as a AAON added as a member of the Russell member of the Russell 2000® Index. 2000® Index. November Introduction of light commercial/residential product lines. November Introduction of light commercial/residential product lines. March Modular air handlerproduct extended to 50,000 CFM March Modular air handlerproduct extended to 50,000 CFM October AAON Listed in Forbes ‘200 Best Small Companies’ December AAON rings closing bell atNASDAQ October AAON Listed in Forbes ‘200 Best Small Companies’ December AAON rings closing bell atNASDAQ 88 ’88’89’90’91’92 ’93’94’4495’96’97’98 ’88’89’90’91’92 ’93’94’4495’96’97’98 93 92 95 94 91 90 98 97 92 91 90 89 89 96 96 88 98 93 95 94 97 December Listed on NASDAQ Small Cap—Symbol “AAON.” December Listed on NASDAQ Small Cap—Symbol “AAON.” Summer Summer Became a publicly traded company Became a publicly traded company with the reverse acquisition of Diamond with the reverse acquisition of Diamond Head Resources (now “AAON, Inc.”), Head Resources (now “AAON, Inc.”), a Nevada corporation. a Nevada corporation. August August AAON, an AAON, an Oklahoma corporation, Oklahoma corporation, was founded. was founded. November Listed on the NASDAQ National Market System. November Listed on the NASDAQ National Market System. January Introduced a desiccant heat recovery wheel option available on all AAON rooftop units. January Introduced a desiccant heat recovery wheel option available on all AAON rooftop units. December Purchased 40 acres with 457,000 square foot plan and 22,000 square foot office space located across from Tulsa facility. December Purchased 40 acres with 457,000 square foot plan and 22,000 square foot office space located across from Tulsa facility. Spring AAON Coil Products purchased, renovated and moved into a 110,000 square foot plant in Longview, Texas. Spring AAON Coil Products purchased, renovated and moved into a 110,000 square foot plant in Longview, Texas. November AAON yearly shipments exceed $100 million. Received U.S. patent for Dimpled Heat Exchanger Tube. November AAON yearly shipments exceed $100 million. Received U.S. patent for Dimpled Heat Exchanger Tube. 99 ’99’00’01’02’03 ’04’4405 ’06’6607 ’0808 ’99’00’01’02’03 ’04’4405 ’06’6607 00 00 03 06 03 02 02 05 99 07 01 01 ’0808 07 August 3-for-2 stock split 05 06 04 July Started production of polyurethane foam-filled double-wall construction panels for rooftop and chiller products using newly purchased manufacturing equipment. 04 July Started production of polyurethane foam-filled double-wall construction panels for rooftop and chiller products using newly purchased manufacturing equipment. October AAON, listed in FORBES Magazine’s “Hot Shots 200 Up & Comers.” October AAON, listed in FORBES Magazine’s “Hot Shots 200 Up & Comers.” April AAON introduces factory engineered and assembled packaged mechanical room, which includes a boiler and all piping and pumping accessories. April AAON introduces factory engineered and assembled packaged mechanical room, which includes a boiler and all piping and pumping accessories. August 3-for-2 October October stock split • AAON rings opening • AAON rings opening bell at NASDAQ bell at NASDAQ • AAON voted “Most Valuble • AAON voted “Most Valuble Product” and “Product of Product” and “Product of the Year” by Consulting- the Year” by Consulting- Specifying Engineer Specifying Engineer Magazine Magazine • AAON listed in Forbes’ • AAON listed in Forbes’ 200 Best Small Companies 200 Best Small Companies Fall Industry introduction of the modular air handler and chiller products. Fall Industry introduction of the modular air handler and chiller products. August AAON received U.S. Patent for Plenum Fan Banding. August AAON received U.S. Patent for Plenum Fan Banding. 08AnnuAl RepoRt “Our previous These changes encourage Assessments and on-site clinics focusing on preventative care. achievements could not have been accomplished and our future goals will not be reached employees to build an The expected savings allowed us to contribute a fixed amount equity position with to participants in the assessment’s health savings account as a the company from their means to allow them to promptly and directly see the benefits first day of employment of the new type of health plan. We also provide a matching although they need to contribution when employees direct income toward their without the confidence remain employed for health savings account. This match promotes preparation and cooperation of our customers, sales representatives and shareholders as well as the loyalty of our dedicated employees, all of whose names appear at the end of this report.” six years to benefit fully. for future expenses while allowing employees to participate Even though matching immediately from their improved health care cost control. funds are used to When we renew our plan this year we will have a more purchase company stock complete picture of the cost patterns associated with this style on the open market, plan of health care coverage, which will allow us to further refine participants can choose and improve our health care benefits. At this time the trends customers. We have also introduced a number of new products to sell their AAON stock are promising and plan participants have adjusted very well to which will give the Company entrance into new markets and to the company at market the new structure. prices at any time to enable us to further diversify our customer mix. Finally, we have expanded both our machinery and manufacturing capacity diversify their holdings. We encourage our employees to increase their skills through which will allow us to accommodate our future growth. We have Participants can also choose to use funds obtained by the sale both on-site and off-site training opportunities. In addition to positioned AAON to meet the future demand for its products of company stock to later purchase shares of the company providing a variety of industry-specific training at our facilities, and embark on a path of accelerated growth once the economy stock on the open market. Through these actions the plan has we reimburse employee tuition expenses for a broad range of begins to recover. increased employee retirement preparedness while creating education. We believe that our effort to train employees, for not ownership of more than 3% of the Company’s outstanding only their current position but also for potential advancement, Our previous achievements could not have been accomplished stock. We believe that our 401(k) program reduces longer benefits our shareholders through improved profitability. and our future goals will not be reached without the confidence term concerns for retirement while rewarding longevity and shareholder value improvement. Outlook After the success of last year’s trial, we moved all employees to our high-deductible health savings plan. We found by allowing employees to reduce their premiums and save the money tax- free that medical expenditures are made more judiciously. During the test period, the high-deductible participants expended significantly less per participant on medical care than did the other participants. Knowing that there was some sample bias, we still chose to move completely into a high- deductible structure paired with our existing Personal Health The present economic environment is without question the most restricted we have witnessed since the inception of the Company two decades ago. However, we remain quite positive regarding the Company’s future outlook. Our optimism is based upon a number of factors. Specifically, we have expended the capital, time and labor to develop a product line which is regarded as the most technologically innovative in our business. These innovations, which directly address the two major industry concerns, energy efficiency and environmental compatibility, have met with very positive response from our and cooperation of our customers, sales representatives and shareholders as well as the loyalty of our dedicated employees, all of whose names appear at the end of this report. Sincerely, Norman H. Asbjornson President & CEO April 10, 2009 08UNItED StAtES SECURItIES AND ExChANGE COmmISSION Washington, D.C. 20549 FORm 10-K tABle Of COntents item numBer And CAptiOn pAge numBer [3] [ ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2008 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _____________________________ to _____________________________ Commission file number: 0-18953 AAON, INC. (Exact name of registrant as specified in its charter) Nevada (State or other jurisdiction of incorporation or organization) 2425 South Yukon, Tulsa, Oklahoma (Address of principal executive offices) 87-0448736 (IRS Employer Identification No.) 74107 (Zip Code) Registrant’s telephone number, including area code: (918) 583-2266 Securities registered pursuant to Section 12(g) of the Act: Common Stock, par value $.004 (Title of Class) Rights to Purchase Series A Preferred Stock (Title of Class) Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. q Yes q No 3 q Yes q No 3 3 q Yes q No Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    3 q 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 q Accelerated filer q Non-accelerated filer q Smaller reporting company q          3 Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Act.) q Yes q No 3 The aggregate market value of the common equity held by non-affiliates computed by reference to the closing price of registrant’s common stock on the last business day of registrant’s most recently completed second quarter (June 30, 2008) was $332.8 million. pARt i 1. Business. 1A. risk fACtOrs. 1B. unresOlved stAff COmments. 2. prOperties. 3. legAl prOCeedings. 4. suBmissiOn Of mAtters tO A vOte Of seCurity HOlders. pARt ii 5. mArket fOr registrAnt’s COmmOn equity, relAted stOCkHOlder mAtters And issuer purCHAses Of equity seCurities. 6. seleCted finAnCiAl dAtA. 7. mAnAgement’s disCussiOn And AnAlysis Of finAnCiAl COnditiOn And results Of OperAtiOns. 7A. quAntitAtive And quAlitAtive disClOsures ABOut mArket risk. 8. finAnCiAl stAtements And supplementAry dAtA. 9. CHAnges in And disAgreements witH ACCOuntAnts On ACCOunting And finAnCiAl disClOsure. 9A. COntrOls And prOCedures. 9B. OtHer infOrmAtiOn. pARt iii 10. direCtOrs, exeCutive OffiCers And COrpOrAte gOvernAnCe. 11. exeCutive COmpensAtiOn. 12. seCurity OwnersHip Of CertAin BenefiCiAl Owners And mAnAgement And relAted stOCkHOlder mAtters. 13. CertAin relAtiOnsHips And relAted trAnsACtiOns. 14. prinCipAl ACCOuntAnt fees And serviCes. As of February 23, 2009, registrant had outstanding a total of 17,184,764 shares of its $.004 par value Common Stock. pARt iV DOCUMENTS INCORPORATED BY REFERENCE 15. exHiBits And finAnCiAl stAtement sCHedules. Portions of registrant’s definitive Proxy Statement to be filed in connection with the Annual Meeting of Stockholders to be held May 19, 2009, are incorporated into Part III. 1 4 5 6 6 6 7 9 10 18 19 19 19 20 21 21 21 21 23 24 1 pARt 1 item 1. buSineSS. geneRAl deVelopment And deSCRiption of buSineSS AAON, Inc., a Nevada corporation, was incorporated on August 18, 1987. Our subsidiaries include AAON, Inc., an Oklahoma corporation, AAON Coil Products, Inc., a Texas corporation, AAON Canada, Inc., d/b/a Air Wise, an Ontario corporation and AAON Properties, Inc., an Ontario corporation. AAON Properties is the lessor of property in Burlington, Ontario, Canada, to AAON Canada. Unless the context otherwise requires, references in this Annual Report to “AAON,” the “Company”, “we,” “us,” “our” or “ours” refer to AAON, Inc., and our subsidiaries. We are engaged in the manufacture and sale of air-conditioning and heating equipment. Our products consist of both standardized and custom rooftop units, chillers, air-handling units, make-up air units, heat recovery units, condensing units, coils and boilers. pRoduCtS And mARketS Our products serve the commercial and industrial new construction and replacement markets. To date virtually all of our sales have been to the domestic market. Foreign sales accounted for less than 5% of our sales in 2008. Our rooftop and condenser markets consist of units installed on commercial or industrial structures of generally less than 10 stories in height. Our air-handling units, chillers, coils and boilers are applicable to all sizes of commercial and industrial buildings. The size of these markets is determined primarily by the number of commercial and industrial building completions. The replacement market consists of products installed to replace existing units/components that are worn or damaged. Historically, approximately half of the industry’s market has consisted of replacement units. The commercial and industrial new construction market is subject to cyclical fluctuations in that it is generally tied to housing starts, but has a lag factor of 6-18 months. Housing starts, in turn, are affected by such factors as interest rates, the state of the economy, population growth and the relative age of the population. When new construction is down, we emphasize the replacement market. Based on our 2008 level of sales of $280 million, we estimate that we have a 13% share of the rooftop market and a 1% share of the coil market. Approximately 54% of our sales now come from new construction and 46% from renovation/replacements. The percentage of sales for new construction vs. replacement to particular customers is related to the customer’s stage of development. With the recent economic downturn and decrease in residential housing starts, the ratio of our sales between new construction and renovation/replacement could change. Although the volatile economic conditions did not significantly affect our business in 2008, the impact the economy will have on us in 2009 is still unknown. We purchase certain components, fabricate sheet metal and tubing and then assemble and test the finished products. Our primary finished products consist of a single unit system containing heating, cooling and/or heat recovery components in a self-contained cabinet, referred to in the industry as “unitary” products. Our other finished products are coils, air-handling units, condensing units, make-up air units, heat recovery units, and boilers. Coils consist of a sheet metal casing with tubing and fins. Air-handling units consist of coils, blowers and filters. Condensing units consist of coils, fans and compressors, which, with the addition of a refrigerant-to-water heat exchanger, become chillers. Make-up air units, heat recovery units and boilers consist of boilers and a sheet metal cabinet. We offer five groups of rooftop units. Our HB Series consisting of four cooling sizes ranging from two to five tons; our RM and RN Series offered in 21 cooling sizes ranging from two to 70 tons; our RL Series, which is offered in 15 cooling sizes ranging from 40 to 230 tons; and our HA Series, which is a horizontal discharge package for either rooftop or ground installation, which we offer in eight sizes ranging from seven and one-half to 50 tons. We also produce customized rooftop products with direct (MN Series) and indirect (DT Series) heating in sizes as required. We also manufacture a Model LL chiller, which is available in both air-cooled condensing and evaporative cooled configurations. Our air-handling units consist of the F1 and H/V Series, the modular (M2 and M3) Series and a customized NJ Series. AnnuAl RepoRt Our heat recovery option applicable to our RM, RN and RL units, as well as our M2, M3 and NJ Series air handlers, respond to the U.S. Clean Air Act mandate to increase fresh air in commercial structures. Our products are designed to compete on the higher quality end of standardized products. Performance characteristics of our products range in cooling capacity from 28,000 - 4,320,000 BTU’s and in heating capacity from 69,000 - 6,000,000 BTU’s. All of our products meet the Department of Energy’s efficiency standards, which define the maximum amount of energy to be used in producing a given amount of cooling. A typical commercial building installation requires a ton of air-conditioning for every 300-400 square feet or, for a 100,000 square foot building, 250 tons of air-conditioning, which can involve multiple units. We have developed and are beginning to market a residential condensing unit (CB Series) and air handlers (F1 Series) as well as boilers (BL Series). mAjoR CuStomeRS No customer accounted for 10% of our sales during 2008, 2007 or 2006. SouRCeS And AVAilAbility of RAw mAteRiAlS The most important materials we purchase are steel, copper and aluminum, which are obtained from domestic suppliers. We also purchase from other domestic manufacturers certain components, including compressors, electric motors and electrical controls used in our products. We attempt to obtain the lowest possible cost in our purchases of raw materials and components, consistent with meeting specified quality standards. We are not dependent upon any one source for raw materials or the major components of our manufactured products. By having multiple suppliers, we believe that we will have adequate sources of supplies to meet our manufacturing requirements for the foreseeable future. We attempt to limit the impact of increases in raw materials and purchased component prices on our profit margins by negotiating with each of our major suppliers on a term basis from six months to one year. diStRibution We employ a sales staff of 20 individuals and utilize approximately 91 independent manufacturer representatives’ organizations having 106 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; Longview, Texas; and Burlington, Ontario, Canada plants to the job site. Billings are to the contractor or end user, with a commission paid directly to the manufacturer representative. Our products and sales strategy focus on niche markets. The targeted markets for our equipment are customers seeking products of better quality than offered, and/or options not offered, by standardized manufacturers. To support and service our customers and the ultimate consumer, we provide parts availability through our 106 sales offices and have factory service organizations at each of our plants. Also, a number of the manufacturer representatives we utilize have their own service organizations, which, in connection with us, provide the necessary warranty work and/or normal service to customers. Our product warranty policy is: the earlier of one year from the date of first use or 18 months from date of shipment for parts only; an additional four years for compressors (if applicable); 15 years on gas-fired heat exchangers (if applicable); and 25 years on stainless steel heat exchangers (if applicable). ReSeARCh And deVelopment All of our R&D activities are company-sponsored, rather than customer-sponsored. R&D has involved the HB, RM, RN, RL, NJ, DT and MN (rooftop units), F1, H/V, M2, M3 and NJ (air handlers), LL (chillers), CB (condensing units) and BL (boilers), as well as component evaluation and refinement, development of control systems and new product development. We incurred research and development expenses of approximately $2,577,000, $2,483,000 and $1,974,000 in 2008, 2007 and 2006, respectively. 1 2 Part 108bACklog Our current backlog as of March 1, 2009, was approximately $45,182,000 compared to approximately $51,365,000 at March 1, 2008. The current backlog consists of orders considered by management to be firm and substantially all of which will be filled by August 1, 2009; however, the orders are subject to cancellation by the customers. woRking CApitAl pRACtiCeS Working capital practices in the industry center on inventories and accounts receivable. Our management regularly reviews our working capital with a view to maintaining the lowest level consistent with requirements of anticipated levels of operation. Our greatest needs arise during the months of July - November, the peak season for inventory (primarily purchased material) and accounts receivable. Our working capital requirements are generally met by cash flow from operations and a bank revolving credit facility, which currently permits borrowings up to $15,150,000. We believe that we will have sufficient funds available to meet our working capital needs for the foreseeable future. We expect to renew our revolving credit agreement in July 2009. We do not anticipate that the current situation in the credit market will impact our renewal. SeASonAlity Sales of our products are moderately seasonal with the peak period being July - November of each year. Competition In the standardized market, we compete primarily with Lennox International, Inc., Ingersoll Rand Limited, Johnson Controls Inc., Mestek Inc. and United Technologies Corporation. All of these competitors are substantially larger and have greater resources than we do. In the custom market, we compete with many larger and smaller manufacturers. Our products compete on the basis of total value, quality, function, serviceability, efficiency, availability of product, product line recognition and acceptability of sales outlet. However, in new construction where the contractor is the purchasing decision maker, we are often at a competitive disadvantage because of the emphasis placed on initial cost. In the replacement market and other owner-controlled purchases, we have a better chance of getting the business since quality and long-term cost are generally taken into account. employeeS AnnuAl RepoRt item 1A. RiSk fACtoRS. The following risks and uncertainties may affect our performance and results of operations. ouR buSineSS CAn be huRt by the CuRRent eConomiC downtuRn. Our business is affected by a number of economic factors, including the level of economic activity in the markets in which we operate. The current state of the United States economy has negatively impacted the commercial and industrial new construction markets. The current decline in economic activity in the United States could materially affect our financial condition and results of operations. Sales in the commercial and industrial new construction markets correlate closely to the number of new homes and buildings that are built, which in turn is influenced by cyclical factors such as interest rates, inflation, consumer spending habits, employment rates and other macroeconomic factors over which we have no control. In the Heating, Ventilation, and Air Conditioning (“HVAC”) business, a decline in economic activity as a result of these cyclical or other factors typically results in a decline in new construction and replacement purchases, which could result in a decrease in our sales volume and profitability. we mAy be AdVeRSely AffeCted by pRoblemS in the AVAilAbility, oR inCReASeS in the pRiCeS, of RAw mAteRiAlS And ComponentS. Problems in the availability, or increases in the prices, of raw materials or components could depress our sales or increase the costs of our products. We are dependent upon components purchased from third parties, as well as raw materials such as steel, copper and aluminum. We enter into cancelable and noncancelable contracts on terms from six months to one year for raw materials and components at fixed prices. However, if a key supplier is unable or unwilling to meet our supply requirements, we could experience supply interruptions or cost increases, either of which could have an adverse effect on our gross profit. we mAy not be Able to SuCCeSSfully deVelop And mARket new pRoduCtS. Our future success will depend upon our continued investment in research and new product development and our ability to continue to realize new technological advances in the HVAC industry. Our inability to continue to successfully develop and market new products or our inability to achieve technological advances on a pace consistent with that of our competitors could lead to a material adverse effect on our business and results of operations. As of March 1, 2009, we had 1,303 permanent employees and 57 temporary employees. The 53 employees of AAON Canada are represented by unions. Management considers relations with our employees to be good. we mAy inCuR mAteRiAl CoStS AS A ReSult of wARRAnty And pRoduCt liAbility ClAimS thAt would negAtiVely AffeCt ouR pRofitAbility. 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. enViRonmentAl mAtteRS Laws concerning the environment that affect or could affect our domestic operations include, among others, the Clean Water Act, the Clean Air Act, the Resource Conservation and Recovery Act, the Occupational Safety and Health Act, the National Environmental Policy Act, the Toxic Substances Control Act, regulations promulgated under these Acts, and any other federal, state or local laws or regulations governing environmental matters. We believe that we presently comply with these laws and that future compliance will not materially adversely affect our earnings or competitive position. AVAilAble infoRmAtion Our Internet website address is http://www.aaon.com. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act of 1934 will be available through our Internet website as soon as reasonably practical after we electronically file such material with, or furnish it to, the SEC. The development, manufacture, sale and use of our products involve a risk of warranty and product liability claims. Our product liability insurance policies have limits that, if exceeded, may result in material costs that would have an adverse effect on our future profitability. In addition, warranty claims are not covered by our product liability insurance and there may be types of product liability claims that are also not covered by our product liability insurance. we mAy not be Able to Compete fAVoRAbly in the highly CompetitiVe hVAC buSineSS. Competition in our various markets could cause us to reduce our prices or lose market share, or could negatively affect our cash flow, which could have an adverse effect on our future financial results. Substantially all of the markets in which we participate are highly competitive. The most significant competitive factors we face are product reliability, product performance, service and price, with the relative importance of these factors varying among our product line. Other factors that affect competition in the HVAC market include the development and application of new technologies and an increasing emphasis on the development of more efficient HVAC products. Moreover, new product introductions are an important factor in the market categories in which our products compete. Several of our competitors have greater financial and other resources than we have, allowing them to invest in more extensive research and development. We may not be able to compete successfully against current and future competition and current and future competitive pressures faced by us may materially adversely affect our business and results of operations. 3 4 08the loSS of noRmAn h. ASbjoRnSon Could impAiR the gRowth of ouR buSineSS. item 2. pRopeRtieS. AnnuAl RepoRt Norman H. Asbjornson, the founder of AAON, Inc., has served as our President and Chief Executive Officer from inception to date. He has provided the leadership and vision for our growth. Although important responsibilities and functions have been delegated to other highly experienced and capable management personnel, our products are technologically advanced and well positioned for sales into the future and we carry key man insurance on Mr. Asbjornson, his death, disability or retirement, could impair the growth of our business. We do not have an employment agreement with Mr. Asbjornson. ouR StoCkholdeR RightS plAn And Some pRoViSionS in ouR bylAwS And neVAdA lAw Could delAy oR pReVent A ChAnge in ContRol. Our stockholder rights plan and some provisions in our bylaws and Nevada law could delay or prevent a change in control, which could adversely affect the price of our common stock. AAon’S buSineSS iS SubjeCt to the RiSkS of inteRRuptionS by pRoblemS SuCh AS ComputeR ViRuSeS. Despite our implementation of network security measures, our services are vulnerable to computer viruses, break-ins and similar disruptions from unauthorized tampering with our computer systems. Any such event could have a material adverse affect on our business. expoSuRe to enViRonmentAl liAbilitieS Could AdVeRSely AffeCt ouR ReSultS of opeRAtionS. Our future profitability could be adversely affected by current or future environmental laws. We are subject to extensive and changing federal, state and local laws and regulations designed to protect the environment in the United States and in other parts of the world. These laws and regulations could impose liability for remediation costs and result in civil or criminal penalties in case of non- compliance. Compliance with environmental laws increases our costs of doing business. Because these laws are subject to frequent change, we are unable to predict the future costs resulting from environmental compliance. item 1b. unReSolVed StAff CommentS. None. The plant and office facilities in Tulsa, Oklahoma, consist of a 337,000 square foot building (322,000 sq. ft. of manufacturing/ warehouse space and 15,000 sq. ft. of office space) located on a 12-acre tract of land at 2425 South Yukon Avenue (the “original facility”), and a 563,000 square foot manufacturing/warehouse building and a 22,000 square foot office building (the “expansion facility”) located on a 40-acre tract of land across the street from the original facility (2440 South Yukon Avenue). Both plants are of sheet metal construction. The original facility’s manufacturing area is in a heavy industrial type building, with total coverage by bridge cranes, containing manufacturing equipment designed for sheet metal fabrication and metal stamping. The manufacturing equipment contained in the original facility consists primarily of automated sheet metal fabrication equipment, supplemented by presses, press breaks and numerical control punching equipment. Assembly lines consist of four cart-type conveyor lines with variable line speed adjustment, three of which are motor driven. Subassembly areas and production line manning are based upon line speed. The manufacturing facility is 1,140 feet in length and varies in width from 390 feet to 220 feet. We use 22,000 sq. ft. for office space, 20,000 sq. ft. for warehouse space and 80,000 sq. ft. for two production lines; an additional 106,000 square feet is utilized for sheet metal fabrication. The remaining 357,000 sq. ft. (presently leased) will afford us additional plant space for long-term growth. The expansion facility is 39% (228,000 sq. ft.) utilized by us and 61% leased to a third party through May 31, 2009 at which time the facility will be remodeled to give us increased manufacturing capacity. The 2009 capital expenditures budget reflects the projected outlay to remodel the facility. Our operations in Longview, Texas, are conducted in a plant/office building at 203-207 Gum Springs Road, containing 258,000 sq. ft. on 14 acres. The manufacturing area (approximately 251,000 sq. ft.) is located in three 120-foot wide sheet metal buildings connected by an adjoining structure. The facility is built for light industrial manufacturing. An additional, contiguous 15 acres were purchased in 2004 and 2005 for future expansion. Our operations in Burlington, Ontario, Canada, are located at 279 Sumach Drive, consisting of an 82,000 sq. ft. office/manufacturing facility on a 5.6 acre tract of land. Production at these facilities averaged approximately $23.3 million per month in 2008, which is approximately 67% of the estimated current production capacity. Management deems our facilities to be nearly ideal for the type of products we manufacture. item 3. legAl pRoCeedingS. We are not a party to any pending legal proceeding which management believes is likely to result in a material liability and no such action is contemplated by or, to the best of our knowledge, has been threatened against us. item 4. SubmiSSion of mAtteRS to A Vote of SeCuRity holdeRS. No matter was submitted to a vote of security holders, through solicitation of proxies or otherwise, during the period from October 1, 2008 through December 31, 2008. 5 6 08pARt 2 item 5. mARket foR RegiStRAnt’S Common equity, RelAted StoCkholdeR mAtteRS And iSSueR puRChASeS of equity SeCuRitieS. Our Common Stock is traded on the NASDAQ National Market under the symbol “AAON”. The range of closing prices for our Common Stock during the last two years, as reported by National Association of Securities Dealers, Inc., was as follows: quARteR ended March 31, 2007* June 30, 2007* September 30, 2007* December 31, 2007 March 31, 2008 June 30, 2008 September 30, 2008 December 31, 2008 high low 19.67 $ 16.46 21.38 $ 16.47 23.01 $ 18.61 21.96 $ 16.60 20.52 $ 15.88 22.92 $ 17.60 22.85 $ 16.91 21.20 $ 12.92 $ $ $ $ $ $ $ $ * All prices adjusted to reflect a 3 for 2 stock split effected August 21, 2007 On February 23, 2009, there were 1,003 holders of record, and approximately 2,000 beneficial owners, of our Common Stock. On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid Board of Director approved semi-annual dividends of $0.20 per share. The Board of Directors approved future dividend payments of $0.16 per share related to the stock split effective August 21, 2007. In 2008, dividends were declared to shareholders of record at the close of business on June 12, 2008 and paid on July 3, 2008 and declared to shareholders of record at the close of business on December 12, 2008 and paid on January 2, 2009. We paid cash dividends of approximately $5.8 million and declared dividends payable of approximately $2.8 million for the year ended December 31, 2008. Following repurchases of approximately 12% of our outstanding Common Stock between September 1999 and September 2001, we announced and began another stock repurchase program on October 17, 2002, targeting repurchases of up to approximately 1,987,500 shares of our outstanding stock. On February 14, 2006, the Board of Directors approved the suspension of our repurchase program. Through February 14, 2006, we had repurchased a total of 1,886,796 shares under this program for an aggregate price of $22,034,568, or an average of $11.68 per share. We purchased the shares at the current market price. On November 6, 2007, our Board of Directors authorized a new stock buyback program, targeting repurchases of up to approximately 10% (1.8 million shares) of our outstanding stock from time to time in open market transactions. Through December 31, 2008, we repurchased a total of 1,692,258 shares under this program for an aggregate price of $33,710,939, or an average of $19.92 per share. We purchased the shares at the current market price. On July 1, 2005, we entered into a stock repurchase arrangement by which employee-participants in our 401(k) savings and investment plan are entitled to have shares of AAON stock in their accounts sold to us to provide diversification of their investments. The maximum number of shares to be repurchased is unknown under the program as the amount is contingent on the number of shares sold by employees. Through December 31, 2008, we repurchased 630,906 shares for an aggregate price of $10,102,687, or an average price of $16.01 per share. We purchased the shares at the current market price. AnnuAl RepoRt On November 7, 2006, the Board of Directors authorized us to repurchase shares from certain Directors following their exercise of stock options. The maximum number of shares to be repurchased is unknown under the program as the amount is contingent on the number of shares sold by Directors. Through December 31, 2008, we repurchased 340,375 shares for an aggregate price of $6,957,423, or an average price of $20.44 per share. We purchased the shares at the current market price. Repurchases during the fourth quarter of 2008 were as follows: iSSueR puRChASeS of equity SeCuRitieS peRiod (a) totAL NuMBeR oF SHAReS (oR uNitS) puRCHASed (b) AVeRAge pRiCe pAid peR SHARe (oR uNit) (c) totAL NuMBeR oF SHAReS (oR uNitS) puRCHASed AS pARt oF puBLiCLy ANNouNCed pLANS oR pRogRAMS (d) MAxiMuM NuMBeR (oR AppRoxiMAte doLLAR VALue) oF SHAReS (oR uNitS) tHAt MAy yet Be puRCHASed uNdeR tHe pLANS oR pRogRAMS October 2008 November 2008 December 2008 Total 17,395 18,821 4,050 40,266 StoCk peRfoRmAnCe gRAph (1) $15.15 $17.80 $19.62 $16.84 17,395 18,821 4,050 40,266 - - - - The following graph compares our cumulative total shareholder return, the NASDAQ Composite and the peer group named below. The graph assumes a $100 investment at the closing price on January 1, 2003, and reinvestment of dividends on the date of payment without commissions. This table is not intended to forecast future performance of our Common Stock. CompulSion of 5 yeAR CumulAtiVe totAl RetuRn ASSumeS initiAl inVeStment of $100 deCembeR 2008 200.00 180.00 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 7 8 2003 2004 2005 2006 2007 2008 AAON INC. S&P 500 Index New Peer Group Old Peer Group Part 208 The new peer group consists of Lennox International, Inc.; Ingersoll Rand Limited; Johnson Controls Inc.; Mestek Inc.; and United Technologies Corporation. The old peer group consists of Trane, Inc.; Lennox International, Inc.; Mestek, Inc.; LSB Industries, Inc.; and United Technologies Corporation. All companies in the peer groups are in the business of manufacturing air conditioning and heat exchange equipment. (1) Securities and Exchange Commission (“SEC”) filings sometimes “incorporate information by reference.” This means we are referring you to information that has previously been filed with the SEC, and that this information should be considered as part of the filing you are reading. Unless we specifically state otherwise, this Stock Performance Graph shall not be deemed to be incorporated by reference and shall not constitute soliciting material or otherwise be considered filed under the Securities Act of 1933 as amended, or the Securities Exchange act of 1934, as amended. item 6. SeleCted finAnCiAl dAtA. The following selected financial data should be read in conjunction with the financial statements and related notes thereto for the periods indicated which are included elsewhere in this report. ReSultS of opeRAtionS: 2008 2007 2006 2005 2004 yeAR ended deCembeR 31, Net sales Net income Earnings per share: Basic Diluted Cash dividends declared per common share Weighted average shares outstanding: Basic Diluted $ $ $ $ $ (in thousands, except per share data) 279,725 $ 262,517 $ 231,460 $ 185,195 $ 171,885 28,589 $ 23,156 $ 17,133 $ 11,462 $ 7,521 1.63 $ 1.60 $ 0.32 $ 1.24 $ 1.22 $ 0.32 $ 0.93 $ 0.90 $ 0.32 $ 0.62 $ 0.60 $ - $ 0.40 0.39 - 17,560 17,855 18,628 18,927 18,456 18,968 18,510 19,125 18,653 19,385 deCembeR 31, finAnCiAl poSition At end of fiSCAl yeAR: 2008 2007 2006 2005 2004 Working capital Total assets Long-term and current debt Total stockholders’ equity (in thousands) $ $ $ $ 40,600 $ 38,788 $ 36,356 $ 33,372 $ 27,939 140,743 $ 137,140 $ 130,056 $ 113,606 $ 105,227 3,113 $ 330 $ 59 $ 167 $ 275 96,522 $ 95,420 $ 91,592 $ 79,495 $ 71,171 Basic earnings per common share were computed by dividing net income by the weighted average number of shares of common stock outstanding during the reporting period. Diluted earnings per common share were determined on the assumed exercise of dilutive options, as determined by applying the treasury stock method. Effective August 21, 2007, we completed a three-for-two stock split. The shares outstanding and earnings per share disclosures have been restated to reflect the stock split. AnnuAl RepoRt 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 standardized and custom rooftop units, chillers, air-handling units, make-up units, heat recovery units, condensing units, coils and boilers. Custom units are marketed and sold to retail, manufacturing, educational, medical and other commercial industries. We market units to all 50 states in the United States and certain provinces in Canada. Foreign sales are less than 5% of our 2008 sales as the majority of all sales are domestic. We sell our products to property owners and contractors through a network of manufacturers’ representatives and our internal sales force. Demand for our products is influenced by national and regional economic and demographic factors. The commercial and industrial new construction market is subject to cyclical fluctuations in that it is generally tied to housing starts, but has a lag factor of 6-18 months. Housing starts, in turn, are affected by such factors as interest rates, the state of the economy, population growth and the relative age of the population. When new construction is down, we emphasize the replacement market. The principal components of cost of goods sold are labor, raw materials, component costs, factory overhead, freight out and engineering expense. The principal high volume raw materials used in our manufacturing processes are steel, copper and aluminum, which are obtained from domestic suppliers. The raw materials market was volatile during 2008 due to the economic environment. Raw materials pricing had steadily increased from the beginning of 2006 until the second half of 2008 when pricing sharply decreased. We experienced raw materials price increases of approximately 70% for steel, 18% for aluminum and 19% for copper from 2006 through the second quarter of 2008. Prices decreased by approximately 40% for steel, 76% for aluminum and 62% for copper from June 30, 2008 to December 31, 2008. We attempt to limit the impact of price increases on these materials by entering cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6 -12 months. Selling, general, and administrative (“SG&A”) costs include our internal sales force, warranty costs, profit sharing and administrative expense. Warranty expense is estimated based on historical trends and other factors. Our product warranty policy is: the earlier of one year from the date of first use or 18 months from date of shipment for parts only; an additional four years on compressors (if applicable); 15 years on gas-fired heat exchangers (if applicable); and 25 years on stainless steel heat exchangers (if applicable). Warranty charges on heat exchangers do not occur frequently. Our office facilities consist of a 337,000 square foot building (322,000 sq. ft. of manufacturing/warehouse space and 15,000 sq. ft. of office space) located at 2425 S. Yukon Avenue, Tulsa, Oklahoma (the “original facility”), and a 563,000 square foot manufacturing/ warehouse building and a 22,000 square foot office building (the “expansion facility”) located across the street from the original facility at 2440 S. Yukon Avenue. We utilize 39% of the expansion facility and the remaining 61% is leased to a third party. The third party lease expires May 31, 2009, at which time the facility will be remodeled to give us increased manufacturing capacity. The 2009 capital expenditures budget reflects the projected outlay to remodel the facility. We conduct other operations in a plant/office building at 203-207 Gum Springs Road in Longview, Texas, containing 258,000 square feet (251,000 sq. ft. of manufacturing/warehouse and 7,000 sq. ft. of office space). An additional 15 acres of land was purchased for future expansion in 2004 and 2005 in Longview, Texas. Our operations in Burlington, Ontario, Canada, are located at 279 Sumach Drive, consisting of an 82,000 sq. ft. office/manufacturing facility on a 5.6 acre tract of land. 9 10 08 Set forth below is income statement information and as a percentage of sales for years 2008, 2007 and 2006: net SAleS AnnuAl RepoRt Net sales Cost of sales Gross profit Selling, general and administrative expenses Income from operations Interest expense Interest income Other income (expense), net yeAR ended deCembeR 31, 2008 2007 (in thousands) 2006 $ 279,725 100.0% $ 262,517 100.0% $ 231,460 100.0% 212,549 67,176 23,788 43,388 (71) 27 724 76.0% 24.0% 8.5% 15.5% 0.0% 0.0% 0.3% 205,148 78.1% 187,570 57,369 21.9% 43,890 21,703 35,666 (10) 8 (321) 35,343 12,187 8.3% 13.6% 0.0% 0.0% (0.1%) 13.5% 4.7% 18,059 25,831 (81) 24 424 26,198 9,065 81.0% 19.0% 7.8% 11.2% 0.0% 0.0% 0.1% 11.3% 3.9% 7.4% Income before income taxes 44,068 15.8% Income tax provision 15,479 5.6% Net income $ 28,589 10.2% $ 23,156 8.8% $ 17,133 ReSultS of opeRAtionS Key events impacting our cash balance, financial condition, and results of operations in 2008 include the following: • An increase in the volume of sales on all product lines due to market share gains and effective moderation of commodity costs with purchase agreements and pricing strategies affecting gross margin, resulted in significantly higher revenues and net income. The large volume of sales also lowered the effect of major fixed costs in general and administrative expenses and occupancy expenses. • We remained the leader in the industry for environmentally-friendly, energy efficient and quality innovations, utilizing R410A refrigerant and phasing out pollutant causing R22 refrigerant. The phase out of R22 began at the beginning of 2004. We also utilize a high performance composite foam panel to eliminate over half of the heat transfer from typical fiberglass insulated panels. We continue to utilize sloped condenser coils, and access compartments to filters, motor, and fans. All of these innovations increase the demand for our products thus increasing market share. • In February 2006, our Board of Directors initiated a program of semi-annual cash dividend payments. Cash payments of $5.8 million were made in 2008 ($2.9 million paid in January and July 2008, respectively), and $2.8 million was accrued as a liability for payment in January 2009. • Stock repurchases of our stock from employee’s 401(k) savings and investments plan was authorized in 2005. Stock repurchases of our stock from directors was authorized in 2006. Stock repurchases of our stock from the open market was authorized and initiated in November 2007. Total repurchases resulted in cash payments of $24.8 million. This cash outlay is partially offset by cash received from options exercised by employees as a part of an incentive bonus program. The cash received in 2008 from options exercised was $1.7 million. • Borrowings under the line of credit were $46.9 million and approximately $71,000 in interest expense was paid in 2008. Borrowings under the line of credit where interest is accrued are relatively short and generally paid off within the month incurred or the following month. At the end of 2008 there was $2.9 million outstanding on the line of credit. • Purchases of equipment and renovations to manufacturing facilities remained a priority. AAON’s capital expenditures were $9.6 million. Equipment purchases create significant efficiencies, lower production costs and allow continued growth in production. We currently estimate dedicating $7.0 million to $8.0 million to capital expenditures in 2009 for continued growth. Net sales were $279.7 million, $262.5 million and $231.5 million in 2008, 2007 and 2006, respectively. Sales increased $17.2 million or 6.6% which was attributable to an increase in volume of product sold related to our new and redesigned products being favorably received by our customers, the diversified customer mix of products, active marketing by sales representatives and pricing strategies implemented in order to keep up with increasing raw material costs. The increase in sales in 2007 of $31.0 million or 13.4% was attributable to an increase in volume of product sold related to our new and redesigned products being favorably received by our customers, active marketing by sales representatives and pricing strategies implemented on 90% of our product lines in the second quarter in order to keep up with increasing raw material costs. New commercial construction steadily improved throughout 2007 and 2006, contributing to growth of the market. gRoSS pRofit Gross margins in 2008, 2007 and 2006 were $67.2 million, $57.4 million and $43.9 million, respectively. As a percentage of sales, gross margins were 24.0%, 21.9% and 19.0% for the years ended 2008, 2007 and 2006. The increase in gross profit for 2008, resulted from pricing strategies implemented and production and labor efficiencies, as sales volume increased. We saw a decrease in raw material costs in the second half of the year, which also contributed to higher gross profits. Management anticipates the moderation of commodity costs through relationships with suppliers and price decreases in certain commodity costs, if realized, should enhance gross margins. Due to an increase in the volume of sales, actual gross profit for 2008 increased by $9.8 million from 2007, and by $13.5 million from 2006 to 2007. The principal high volume raw materials used in our manufacturing processes are steel, copper and aluminum, which are obtained from domestic suppliers. The raw materials market was volatile during 2008 due to the economic environment. Raw materials pricing had steadily increased from the beginning of 2006 until the second half of 2008 when pricing sharply decreased. We experienced raw materials price increases of approximately 70% for steel, 18% for aluminum and 19% for copper from 2006 through the second quarter of 2008. Prices decreased by approximately 40% for steel, 76% for aluminum and 62% for copper from June 30, 2008 to December 31, 2008. We attempt to limit the impact of price increases on these materials by entering cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6 -12 months. We also purchase from other domestic manufacturers certain components, including compressors, electric motors and electrical controls used in our products. The suppliers of these components are significantly affected by the raw material costs as steel, copper and aluminum are used in the manufacturing of their products. While raw material costs decreased in the last half of the year, increases in component parts were experienced throughout 2008. We instituted several price increases to customers from 2006 to 2008 in an attempt to offset the continued increases in steel, copper, aluminum, and component parts. We attempt to limit the impact of price fluctuations on these materials by entering into cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6-12 months. Selling, geneRAl And AdminiStRAtiVe expenSeS Selling, general and administrative expenses were $23.8 million, $21.7 million and $18.1 million for the years ended 2008, 2007 and 2006. The increase in selling, general and administrative expenses is due primarily to an increase in selling related expenses, warranty expense caused by increased sales, increase in profit sharing resulting from an increase in net income, and an overall increase in general and administrative expenses. In 2007, the increase in selling, general and administrative expenses was primarily caused by an increase in sales expenditures for an increased sales force and active marketing, increases in salaries for selling, general and administrative personnel and an increase in profit sharing. There were additional non-cash compensation costs for the fair value of stock options granted to employees in accordance with the adoption of Statement of Financial Accounting Standards (“SFAS”) No. 123R, Share-Based Payment (“SFAS 123R”). inteReSt expenSe Interest expense was approximately $71,000, $10,000 and $81,000 for the years ended 2008, 2007 and 2006. The increase in interest expense of approximately $61,000 in 2008 was due to higher average borrowings under the revolving credit facility as a result of a decrease in net cash provided by operations related to the stock repurchases. The decrease in interest expense of approximately $71,000 from 2006 to 2007 was due to a decrease in average borrowings under the revolving credit facility and interest rates. Interest on borrowings is payable monthly at the Wall Street Journal prime rate less 0.5% or LIBOR plus 1.6%, at our election (3.50% at December 31, 2008). Average borrowings under the revolving credit facility are typically paid in full within the month of borrowing or the following month. 11 12 08 AnnuAl RepoRt Cash Flows Used in Investing Activities. Cash flows used in investing activities were $9.6 million, $10.8 million and $16.8 million in 2008, 2007 and 2006, respectively. The decrease in cash flows used in investing activities in 2008 and 2007 was $1.2 million and $6.0 million, respectively, and primarily related to a decrease in capital expenditures. Management utilizes cash flows provided from operating activities to fund capital expenditures that are expected to increase growth and create efficiencies. Due to anticipated production demands, we expect to expend approximately $7.0 million to $8.0 million in 2009 for a building expansion, a building renovation of the leased facility and equipment. We expect the cash requirements to be provided from cash flows from operations. We did not invest in any certificates of deposits in 2008 and 2007, respectively. A previously invested certificate of deposit matured in the first quarter of 2006. Cash Flows Used in Financing Activities. Cash flows used in financing activities were $24.5 million, $20.0 million and $3.3 million in 2008, 2007 and 2006, respectively. The increase of cash used in financing activities primarily relates to cash dividends declared and paid and the continued repurchase of our stock. We occasionally utilize the revolving line of credit as described below in “General” to meet certain short-term cash demands based on our current liquidity at the time. We have $2.9 million of borrowings outstanding under the line of credit at December 31, 2008. We had no net borrowings under the revolving line of credit at December 31, 2007. We accessed $46.9 million and $12.1 million of borrowings under the line of credit during 2008 and 2007, respectively. We utilized the revolving line of credit in 2006 for short-term demands in the amount of $53.7 million. We received cash from stock options exercised of $1.7 million and $2.4 million and classified the excess tax benefit of stock options exercised and restricted stock awards vested of $1.6 million and $3.0 million in financing activities in 2008 and 2007, respectively. We received cash from stock options exercised for the year ended 2006 of approximately $1.3 million and classified the excess tax benefit of stock options exercised of $1.9 million. We repurchased shares of stock under the Board of Directors authorized stock buyback programs in 2008, 2007 and 2006. We repurchased shares of stock from employees’ 401(k) savings and investment plan, Directors, and the open market in 2008 in the amount of $24.8 million for 1,211,538 shares of stock. We repurchased shares of stock from employees’ 401(k) savings and investment plan, Directors, and the open market in 2007 in the amount of $20.8 million for 1,082,736 shares of stock and in 2006 in the amount of $3.9 million for 250,500 shares of stock. On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid Board of Director approved semi-annual dividends of $0.20 per share. The Board of Directors approved future dividend payments of $0.16 per share related to the stock split effective August 21, 2007. Cash dividend payments of $5.8 million were made in 2008, and $2.8 million in dividends were declared and accrued as a liability in December 2008 for payment in January 2009. Cash dividend payments of $5.0 million were made in 2007, and $2.9 million in dividends were declared and accrued as a liability in December 2007 for payment in January 2008. Cash dividend payments of $2.5 million were made in 2006, and $2.5 million in dividends were declared and accrued as a liability in December 2006 for payment in January 2007. Board of Director approval is required to determine the date of declaration for each semi-annual payment. inteReSt inCome Interest income was approximately $27,000, $8,000 and $24,000 in 2008, 2007 and 2006 respectively. The increase in interest income is due to interest paid for repurchased stock shares that were held in transit by the transfer agent in early 2008. otheR inCome (expenSe) Other income was approximately $724,000 in 2008. Other expense was approximately $321,000 in 2007. The change in other income (expense) was primarily related to foreign currency losses that result from operations in Canada in 2008 and 2007. Other income was approximately $424,000 in 2006. Other income is attributable primarily to rental income from our expansion facility. All expenses associated with the facility that are allocated to the rental portion of the building are included in other income. We plan to continue to rent the expansion facility until the lease term expires on May 31, 2009. impACt of CuRRent eConomiC ConditionS Our business is affected by a number of economic factors, including the level of economic activity in the markets in which we operate. The current state of the United States economy has negatively impacted the commercial and industrial new construction markets. The current decline in economic activity in the United States could materially affect our financial condition and results of operations. Sales in the commercial and industrial new construction markets correlate closely to the number of new homes and buildings that are built, which in turn is influenced by cyclical factors such as interest rates, inflation, consumer spending habits, employment rates and other macroeconomic factors over which we have no control. In the Heating, Ventilation, and Air Conditioning (“HVAC”) business, a decline in economic activity as a result of these cyclical or other factors typically results in a decline in new construction and replacement purchases, which could result in a decrease in our sales volume and profitability. Although the volatile economic conditions did not significantly affect our business in 2008, the impact the economy will have on us in 2009 is still unknown. AnAlySiS of liquidity And CApitAl ReSouRCeS Our working capital and capital expenditure requirements are generally met through net cash provided by operations and the occasional use of the revolving bank line of credit based on our current liquidity at the time. Cash Provided by Operating Activities. Net cash provided from operating activities has fluctuated from year to year. Net cash provided by operating activities was $33.4 million, $31.2 million and $19.4 million in fiscal years 2008, 2007 and 2006, respectively. The year-to-year variances are primarily from results of changes in net income, accounts receivable, inventories, accounts payable and accrued liabilities. Net income for fiscal year 2008 was $28.6 million, an increase of $5.4 million from 2007. The increase in net income during fiscal years 2008 and 2007 compared to fiscal years 2007 and 2006 was primarily due to increased volume of sales, adjusted pricing strategies, fluctuations in raw materials costs, innovative and efficient products, and improved production efficiencies. Depreciation expense was $9.4 million, $9.7 million and $9.1 million for the years ended December 31, 2008, 2007 and 2006, respectively. The decrease in depreciation is due to the realization of full depreciation of certain capital assets. We adopted SFAS 123R in 2006. Share-based compensation was $0.8 million, $0.6 million and $0.5 million in 2008, 2007 and 2006, respectively. Both depreciation expense and share-based compensation expense decreased net income but had no effect on operating cash. Accounts receivable balances did not significantly fluctuate in 2008 even though sales increased. Accounts receivable increased during 2007 and 2006 from the increase in sales. Accounts receivable increased by $0.9 million at December 31, 2008 compared to December 31, 2007. The increase at December 31, 2007 from December 31, 2006 was $1.8 million. Inventories increased by $4.8 million, $2.1 million and $5.8 million at December 31, 2008, 2007 and 2006, respectively. The increase in 2008 was attributable to procurement of inventory to accommodate an increase of sales. The leading factor in the increase in 2007 and 2006 is primarily related to the valuation of inventories due to higher raw material and component parts costs. Accounts payable and accrued liabilities decreased by $1.3 million at December 31, 2008 and increased by $4.9 million and $4.3 million at December 31, 2007 and 2006. The decrease in 2008 is primarily due to timing of payments to vendors and a decrease in workers’ compensation expense. The increase in 2007 is due to an increase in commissions payable related to the increase in sales, timing of commissions payable and payments to vendors. 13 14 08 geneRAl Our revolving credit facility provides for maximum borrowings of $15.2 million which is provided by the Bank of Oklahoma, National Association. Under the line of credit, there is one standby letter of credit totaling $1.0 million. The letter of credit is a requirement of our workers compensation insurance and was extended in 2008 and will expire on December 31, 2009. Interest on borrowings is payable monthly at the Wall Street Journal prime rate less 0.5% or LIBOR plus 1.6%, at our election (3.50% at December 31, 2008). No fees are associated with the unused portion of the committed amount. At December 31, 2008, we had $2.9 million outstanding under the revolving credit facility. At December 31, 2007, we had no borrowings outstanding under the revolving credit facility. Borrowings available under the revolving credit facility at December 31, 2008, were $11.3 million. At December 31, 2008 and 2007, we were in compliance with our financial ratio covenants. The covenants are related to our tangible net worth, total liabilities to tangible net worth ratio and working capital. At December 31, 2008 our tangible net worth was $96.5 million. Our total liabilities to tangible net worth ratio was 2.2. Our working capital was $40.6 million. On July 30, 2008, we renewed the line of credit with a maturity date of July 30, 2009. We expect to renew our revolving credit agreement in July 2009. We do not anticipate that the current situation in the credit market will impact our renewal. On July 12, 2007, our Board of Directors approved a three-for-two stock split of our outstanding stock for shareholders of record as of August 3, 2007. The stock split was treated as a 50% stock dividend which was distributed on August 21, 2007. As a result of the stock split, our Board of Directors adjusted the dividend paid per share to $0.16. The applicable share and per share data for 2007 and 2006 included herein has been restated to reflect the stock split Management believes projected cash flows from operations and our bank revolving credit facility (or comparable financing) will provide us the necessary liquidity and capital resources for fiscal year 2009 and the foreseeable future. The belief that we will have the necessary liquidity and capital resources is based upon management’s knowledge of the HVAC industry and our place in that industry, our ability to limit our growth if necessary, our ability to authorize dividend cash payments, and our relationship with our existing bank lender. For information concerning our revolving credit facility at December 31, 2008, see Note 3 to the Consolidated Financial Statements, Revolving Credit Facility. AnnuAl RepoRt CommitmentS And ContRACtuAl AgReementS The following table summarizes our long-term debt and other contractual agreements as of December 31, 2008: pAymentS due by peRiod (in thousands) ContRACtuAl finAnCiAl obligAtionS totAl leSS thAn 1 yeAR 1–3 yeARS 4–5 yeARS AfteR 5 yeARS Long-term debt and capital leases Purchase commitments1 Total contractual obligations $ $ 163 $ 91 $ 4,738 4,738 4,901 $ 4,829 $ 72 $ - 72 $ - $ - - $ - - - 1 Purchase commitments consist primarily of copper commitments. In the normal course of business we expect to purchase approximately $4.7 million of raw materials in the form of legally binding commitments. The fixed rate interest on long-term debt includes the amount of interest due on our fixed rate long-term debt. These amounts do not include interest on our variable rate obligation related to the revolving credit facility. We are a party to several short-term, cancelable and noncancelable, fixed price contracts with major suppliers for the purchase of raw material and component parts. CRitiCAl ACCounting poliCieS The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Because these estimates and assumptions require significant judgment, future actual results could differ from those estimates and could have a significant impact on our results of operations, financial position and cash flows. We reevaluate our estimates and assumptions on a monthly basis. The following accounting policies may involve a higher degree of estimation or assumption: Revenue Recognition – We recognize revenues from sales of products when the products are shipped and the title and risk of ownership pass to the customer. Selling prices are fixed based on purchase orders or contractual agreements. Sales allowances and customer incentives are treated as reductions to sales and are provided for based on historical experiences and current estimates. For sales initiated by independent manufacturer representatives, we recognize revenues net of the representatives’ commission. Our policy is to record the collection and payment of sales taxes through a liability account. Allowance for Doubtful Accounts – Our allowance for doubtful accounts is estimated to cover the risk of loss related to accounts receivable. We establish an allowance for doubtful accounts based upon factors surrounding the credit risk of specific customers, historical trends in collections and write-offs, current customer status, the age of the receivable, economic conditions and other information. Aged receivables are reviewed on a monthly basis to determine if the reserve is adequate and adjusted accordingly at that time. The evaluation of these factors involves complex, subjective judgments. Thus, changes in these factors or changes in economic circumstances may significantly impact our Consolidated Financial Statements. Inventory Reserves – We establish a reserve for inventories based on the change in inventory requirements due to product line changes, the feasibility of using obsolete parts for upgraded part substitutions, the required parts needed for part supply sales, replacement parts and for estimated shrinkage. Warranty – A provision is made for estimated warranty costs at the time the product is shipped and revenue is recognized. The warranty period is: the earlier of one year from the date of first use or 18 months from date of shipment for parts only; an additional four years on compressors (if applicable); 15 years on gas-fired heat exchangers (if applicable); and 25 years on stainless steel heat exchangers (if applicable). Warranty expense is estimated based on the warranty period, historical warranty trends and associated costs, and any known identifiable warranty issue. Warranty charges associated with heat exchanges do not occur frequently. 15 16 08 Due to the absence of warranty history on new products, an additional provision may be made for such products. Our estimated future warranty cost is subject to adjustment from time to time depending on changes in actual warranty trends and cost experience. Should actual claim rates differ from our estimates, revisions to the estimated product warranty liability would be required. Medical Insurance – A provision is made for medical costs associated with our Medical Employee Benefit Plan, which is primarily a self-funded plan. A provision is made for estimated medical costs based on historical claims paid and potential significant future claims. The plan is supplemented by employee contributions and an excess policy for claims over $100,000 each. Stock Compensation – We adopted SFAS 123R, effective January 1, 2006. Applying this standard to value equity-based compensation requires us to use significant judgment and to make estimates, particularly for the assumptions used in the Black-Scholes valuation model, such as stock price volatility and expected option lives, as well as for the expected option forfeiture rates. In accordance with SFAS 123R we measure the cost of employee services received in exchange for an award of equity instruments using the Black- Scholes valuation model to calculate the grant-date fair value of the award. The compensation cost is recognized over the period of time during which an employee is required to provide service in exchange for the award, which will be the vesting period. Historically, actual results have been within management’s expectations. new ACCounting pRonounCementS In September 2006, the FASB released SFAS No. 157, Fair Value Measurements (“SFAS 157”), which defines fair value and establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. Although SFAS 157 applies to (and amends) the provisions of existing authoritative literature, it does not, of itself, require any new fair value measurements or establish valuation standards. SFAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years. Adoption of SFAS 157 did not have a material impact on our Consolidated Financial Statements. In February, 2007, the FASB issued FASB Statement No. 159, The Fair Value Option for Financial Assets and Financial Liabilities (“SFAS 159”), which creates an alternative measurement treatment for certain financial assets and financial liabilities. SFAS 159 permits fair value to be used for both the initial and subsequent measurements on an instrument by instrument basis, with changes in the fair value to be recognized in earnings as those changes occur. This election is referred to as the fair value option. SFAS 159 also requires additional disclosures to compensate for the lack of comparability that will arise from the use of the fair value option. SFAS 159 is effective for fiscal years beginning after November 15, 2007. The fair value option has not been elected for any financial assets or liabilities at December 31, 2008. In December 2007, the FASB issued SFAS No. 141R, Business Combinations (“SFAS 141R”), which replaced FASB Statement 141, Business Combination, which changes the accounting for business combinations and noncontrolling interests. Among other things, when compared to the predecessor guidance SFAS 141R will require (i) more assets acquired and liabilities assumed to be measured at fair value as of the acquisition date, (ii) liabilities related to contingent consideration to be remeasured to fair value each subsequent reporting period, and (iii) acquirer in preacquisition periods to expense all acquisition-related costs. SFAS 141R must be applied prospectively for fiscal years beginning after December 15, 2008. We do not expect adoption of SFAS 141R to have a material impact on our Consolidated Financial Statements. In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated Financial Statements – an Amendment of ARB No. 51 (“SFAS 160”), which changes the accounting and reporting for minority interests, which will be recharacterized as noncontrolling interests and classified as a component of equity.  SFAS 160 must be adopted no later than January 1, 2009.   We do not expect adoption of SFAS 160 to have a material impact on our Consolidated Financial Statements. In March 2008, the FASB issued SFAS No. 161, Disclosures about Derivative Instruments and Hedging Activities – an Amendment of FASB Statement No.  133 (“SFAS 161”), which requires enhanced disclosures about (i)  how and why an entity uses derivative instruments, (ii)  how derivative instruments and related hedged items are accounted for under SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities, as amended (“SFAS 133”) and its related interpretations and (iii)  how derivative instruments and related hedged items affect an entity’s financial position, financial performance and cash flows.  SFAS 161 will be effective for financial statements issued for fiscal years and interim periods beginning after November 15, 2008.  We do not expect adoption of SFAS 161 to have a material impact on our Consolidated Financial Statements. AnnuAl RepoRt In June 2008, the Emerging Issues Task Force (“EITF”) issued No. 03-6-1, Determining Whether Instruments Granted in Share-Based Payment Transactions Are Participating Securities (“EITF 03-6-1”), which addresses whether instruments granted in share-based payment transactions are participating securities prior to vesting and, therefore, need to be included in the earnings allocation in computing earnings per share (“EPS”) under the two-class method.  EITF 03-6-1 will be effective for financial statements issued for fiscal years beginning after December 15, 2008, and interim periods within those years.  All prior-period EPS data presented will be adjusted retrospectively to conform to the provisions of EITF 03-6-1. We are evaluating the expected impact of adoption of EITF 03-6-1. In December 2008, the FASB issued FSP No. FAS 132 R-1, Employers’ Disclosures about Postretirement Benefit Plan Assets (“FAS 132R- 1”), which provides guidance on an employer’s disclosures about plan assets of a defined benefit pension or other postretirement plan and requires employers to provide more transparency about the assets held by retirement plan and the concentrations of risk in those plans. FAS 132 R-1 will be effective for fiscal years beginning after December 15, 2009. We do not expect the adoption of FAS 132 R-1 to have a material impact on our Consolidated Financial Statements. foRwARd-looking StAtementS This Annual Report includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “expects”, “anticipates”, “intends”, “plans”, “believes”, “seeks”, “estimates”, “will”, and variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such 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. While the recent adverse economic climate has not yet impacted the business of AAON, there can be no assurances that economic conditions will not adversely affect our business in the future. 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. item 7A. quAntitAtiVe And quAlitAtiVe diSCloSuReS About mARket RiSk. We are subject to interest rate risk on our revolving credit facility, which bears variable interest based upon a prime or LIBOR rate. We had $2.9 million outstanding as of December 31, 2008. Foreign sales accounted for less than approximately 5% of our sales in 2008 and we accept payment for such sales in U.S. and Canadian dollars; therefore, we believe we are not exposed to significant foreign currency exchange rate risk on these sales. Foreign currency transactions and financial statements are translated in accordance with SFAS No. 52, Foreign Currency Translation. We use the U.S. dollar as our functional currency, except for the Canadian subsidiaries, which use the Canadian dollar. Adjustments arising from translation of the Canadian subsidiaries’ financial statements are reflected in accumulated other comprehensive income. Transaction gains or losses that arise from exchange rate fluctuations applicable to transactions denominated in Canadian currency are included in the results of operations as incurred. The exchange rate of the Canadian dollar to the United States dollar was $0.8196 and $1.0193 at December 31, 2008 and 2007, respectively. The principal high volume raw materials used in our manufacturing processes are steel, copper and aluminum, which are obtained from domestic suppliers. The raw materials market was volatile during 2008 due to the economic environment. Raw materials pricing had steadily increased from the beginning of 2006 until the second half of 2008 when pricing sharply decreased. We experienced raw materials price increases of approximately 70% for steel, 18% for aluminum and 19% for copper from 2006 through the second quarter of 2008. Prices decreased by approximately 40% for steel, 76% for aluminum and 62% for copper from June 30, 2008 to December 31, 2008. We attempt to limit the impact of price increases on these materials by entering cancelable and noncancelable fixed price contracts with our major suppliers for periods of 6 -12 months. We do not utilize derivative financial instruments to hedge our interest rate, foreign currency exchange rate or raw materials price risks. 17 18 08AnnuAl RepoRt item 8. finAnCiAl StAtementS And SupplementARy dAtA. The financial statements and supplementary data are included commencing at page 28. (C) RepoRt of independent RegiSteRed publiC ACCounting fiRm Report of Independent Registered Public Accounting Firm item 9. ChAngeS in And diSAgReementS with ACCountAntS on ACCounting And finAnCiAl diSCloSuRe. Board of Directors and Stockholders AAON, Inc. None. item 9A. ContRolS And pRoCeduReS. (A) eVAluAtion of diSCloSuRe ContRolS And pRoCeduReS At the end of the period covered by this Annual Report on Form 10-K, 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 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 such that important information flows to appropriate collection and disclosure points in a timely manner and are effective to ensure that such information is accumulated and communicated to our management, and made known to our Chief Executive Officer and Chief Financial Officer, particularly during the period when this Annual Report was prepared, as appropriate to allow timely decisions regarding the required disclosure. AAON’s Chief Executive Officer and Chief Financial Officer have evaluated our disclosure controls and procedures and concluded that these controls and procedures were effective as of December 31, 2008. (b) mAnAgement’S AnnuAl RepoRt on inteRnAl ContRol oVeR finAnCiAl RepoRting The management of AAON, Inc. and our subsidiaries is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control system was designed to provide reasonable assurance to our management and Board of Directors regarding the preparation and fair presentation of published financial statements. All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. In making our assessment of internal control over financial reporting, management used the criteria issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework. Based on our assessment, we believe that, as of December 31, 2008, our internal control over financial reporting is effective based on those criteria. Our independent registered public accounting firm has issued an attestation report on our internal control over financial reporting. Date: March 10, 2009 19 /s/ Norman H. Asbjornson Norman H. Asbjornson Chief Executive Officer /s/ Kathy I. Sheffield Kathy I. Sheffield Chief Financial Officer We have audited AAON, Inc. (a Nevada Corporation) and subsidiaries’ (collectively, the Company) internal control over financial reporting as of December 31, 2008, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2008, based on criteria established in Internal Control—Integrated Framework issued by COSO. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of AAON, Inc. and subsidiaries as of December 31, 2008 and 2007, and the related consolidated statements of income, stockholders’ equity and comprehensive income, and cash flows for each of the three years in the period ended December 31, 2008 and our report dated March 10, 2009 expressed an unqualified opinion on those consolidated financial statements. /s/ GRANT THORNTON LLP Tulsa, Oklahoma March 10, 2009 (d) ChAngeS in inteRnAl ContRol oVeR finAnCiAl RepoRting There have been no changes in internal control over financial reporting that occurred during the fourth quarter of 2008 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. item 9b. otheR infoRmAtion. None. 20 08 pARt 3 item 10. diReCtoRS, exeCutiVe offiCeRS And CoRpoRAte goVeRnAnCe. The information required by Items 401, 405, 406 and 407(c)(3), (d)(4) and (d)(5) of Regulation S-K is incorporated by reference to the information contained in our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2009 Annual Meeting of Stockholders. Code of ethiCS We adopted a code of ethics that applies to our principal executive officer, principal financial officer and principal accounting officer or persons performing similar functions, as well as other employees and directors. We will provide any person without charge, upon request, a copy of such code of ethics. Requests may be directed to AAON, Inc., 2425 South Yukon Avenue, Tulsa, Oklahoma 74107, attention Kathy I. Sheffield, or by calling (918) 382-6204. item 11. exeCutiVe CompenSAtion. The information required by Items 402 and 407(e)(4) and (e)(5) of Regulation S-K is incorporated by reference to the information contained in our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2009 Annual Meeting of Stockholders. item 12. SeCuRity owneRShip of CeRtAin benefiCiAl owneRS And mAnAgement And RelAted StoCkholdeR mAtteRS. The information required by Item 403 and Item 201(d) of Regulation S-K is incorporated by reference to the information contained in our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2009 Annual Meeting of Stockholders. item 13. CeRtAin RelAtionShipS And RelAted tRAnSACtionS. tRAnSACtionS with RelAted peRSonS Our Code of Conduct guides the Board of Directors in its actions and deliberations with respect to related party transactions. Under the Code, conflicts of interest, including any involving the directors or any Named Officers, are prohibited except under any guidelines approved by the Board of Directors. Only the Board of Directors may waive a provision of the Code of Conduct for a director or a Named Officer, and only then in compliance with all applicable laws and rules and regulations. We did not enter into any new related party transactions and have no preexisting related party transactions in 2008 or 2007, respectively. diReCtoR independenCe The Board of Directors (“Board”) has adopted director independence standards that meet and/or exceed listing standards set by NASDAQ. NASDAQ has set forth six applicable tests and requires that a director who fails any of the tests be deemed not independent. In 2008, the Board affirmatively determined, considering the standards described more fully below, that Messrs. Short, Lackey, McElroy, and Stephenson are independent. Upon the resignation of Mr. Pantaleoni, followed by the subsequent election of Mr. Levine, the Board affirmatively determined that Mr. Levine is independent. As a result of his position as our President, Mr. Asbjornson does not qualify as independent under the standards set forth below.  The Board has determined that Mr. Johnson should not be deemed independent, because he is a member of the law firm that serves as our General Counsel. In addition, each member of the Audit Committee and the Compensation Committee is independent. AnnuAl RepoRt Our director independence standards are as follows: It is the policy of the Board that a majority of the members of the Board consist of directors independent of the Company and of our management. For a director to be deemed “independent,” the Board shall affirmatively determine that the director has no material relationship with us or our affiliates or any member of the senior management or his or her affiliates. In making this determination, the Board applies, at a minimum and in addition to any other standards for independence established under applicable statutes and regulations as outlined by the NASDAQ listing standards Rule 4200, the following standards, which it may amend or supplement from time to time: • A director who is, or has been within the last three years, an employee of the Company, or whose immediate family member is, or has been within the last three years a Named Officer, can not be deemed independent. Employment as an interim Chairman or Chief Executive Officer will not disqualify a director from being considered independent following that employment. • A director who has received, or who has an immediate family member who has received, during any twelve-month period within the last three years, more than $60,000 in direct compensation from us, other than director and committee fees and benefits under a tax-qualified retirement plan, or non-discretionary compensation for prior service (provided such compensation is not contingent in any way on continued service), can not be deemed independent. Compensation received by a director for former service as an interim Chairman or Chief Executive Officer and compensation received by an immediate family member for service as one of our non-executive employees will not be considered in determining independence under this test. • A director who (A) is, or whose immediate family member is, a current partner of a firm that is our external auditor; (B) is a current employee of such a firm; or (C) was, or whose immediate family member was, within the last three years (but is no longer) a partner or employee of such a firm and personally worked on our audit within that time can not be deemed independent. • A director who is, or whose immediate family member is, or has been within the last three years, employed as an executive officer of another company where any of our present Named Officers at the time serves or served on that company’s compensation committee can not be deemed independent. • A director who is a current employee or general partner, or whose immediate family member is a current executive officer or general partner, of an entity that has made payments to, or received payments from us for property or services in an amount which, in any of the last three fiscal years, exceeds the greater of $200,000 or 5% of such other entity’s consolidated gross revenues, other than payments arising solely from investments in our securities or payments under non-discretionary charitable contribution matching programs, can not be deemed independent. For purposes of the independence standards set forth above, the terms: • “affiliate” means any of our consolidated subsidiaries and any other company or entity that controls, is controlled by or is under common control with us; • “executive officer” means an “officer” within the meaning of Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended; and • “immediate family” means spouse, parents, children, siblings, mothers- and fathers-in-law, sons- and daughters-in-law, brothers- and sisters-in-law and anyone (other than employees) sharing a person’s home, but excluding any person who is no longer an immediate family member as a result of legal separation or divorce, death or incapacitation. 21 22 Part 308The Board undertakes an annual review of the independence of all non-employee directors. In advance of the meeting at which this review occurs, each non-employee director is asked to provide the Board with full information regarding the director’s business and other relationships with us and our affiliates and with senior management and their affiliates to enable the Board to evaluate the director’s independence. Directors have an affirmative obligation to inform the Board of any material changes in their circumstances or relationships that may impact their designation by the Board as “independent.” This obligation includes all business relationships between, on the one hand Directors or members of their immediate family, and, on the other hand, us and our affiliates or members of senior management and their affiliates, whether or not such business relationships are subject to any other approval requirements. item 14. pRinCipAl ACCountAnt feeS And SeRViCeS. Incorporated by reference to our definitive Proxy Statement to be filed with the Securities and Exchange Commission in connection with our 2009 Annual Meeting of Stockholders. AnnuAl RepoRt pARt 4 item 15. exhibitS And finAnCiAl StAtement SCheduleS. (a) Financial statements. See Index to Consolidated Financial Statements on page 26. (b) Exhibits: (3) (4) (10.1) (10.2) (21) (23) (31.1) (31.2) (32.1) (32.2) (A) (A-1) (B) (B-1) Articles of Incorporation (i) Article Amendments (ii) Bylaws (i) Amendments of Bylaws (iii) Third Restated Revolving Credit and Term Loan Agreement and related documents (iv) (A) (A-1) Third Amendment to Third Restated Revolving Credit and Term 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 (i) (ii) (iii) Incorporated herein by reference to the exhibits to our Form S-18 Registration Statement No. 33-18336-LA. Incorporated herein by reference to the exhibits to our Annual Report on Form 10-K for the fiscal year ended December 31, 1990, and to our Forms 8-K dated March 21, 1994, March 10, 1997, and March 17, 2000. Incorporated herein by reference to our Forms 8-K dated March 10, 1997, May 27, 1998 and February 25, 1999, or exhibits thereto. (iv) Incorporated by reference to exhibit to our Form 8-K dated July 30, 2004. (v) Incorporated herein by reference to exhibit to our Form 8-K dated August 13, 2008. (vi) (vii) 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 herein by reference to exhibits to our Annual Report on Form 10-K for the fiscal year ended December 31, 1991, and to our Form S-8 Registration Statement No. 33-78520, as amended. (viii) Incorporated herein by reference to Appendix B to our definitive Proxy Statement for the 2007 Annual Meeting of Stockholders filed April 23, 2007. (ix) Incorporated herein by reference to exhibits to our Annual Report on Form 10-K for the fiscal year ended December 31, 2004. 23 24 Part 408 SignAtuReS index to ConSolidAted finAnCiAl StAtementS Pursuant to the requirement of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Dated: March 10, 2009 AAON, INC. By: /s/ Norman H. Asbjornson Norman H. Asbjornson, President Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. Report of Independent Registered Public Accounting Firm – Grant Thornton LLP Consolidated Balance Sheets Consolidated Statements of Income Consolidated Statements of Stockholders’ Equity and Comprehensive Income Consolidated Statements of Cash Flows Notes to Consolidated Financial Statements pAge 27 28 29 30 31 32 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 Dated: March 10, 2009 25 /s/ Norman H. Asbjornson Norman H. Asbjornson President and Director (principal executive officer) /s/ Kathy I. Sheffield Kathy I. Sheffield Vice President and Treasurer (principal financial officer and principal accounting officer) /s/ John B. Johnson, Jr. John B. Johnson, Jr. Director /s/ Charles C. Stephenson, Jr. Charles C. Stephenson, Jr. Director /s/ Jack E. Short Jack E. Short Director /s/ Paul K. Lackey, Jr. Paul K. Lackey, Jr. Director /s/ A.H. McElroy II A.H. McElroy II Director /s/ Jerry R. Levine Jerry R. Levine Director AnnuAl RepoRt 26 08 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 (collectively, the Company) as of December 31, 2008 and 2007, and the related consolidated statements of income, stockholders’ equity and comprehensive income, and cash flows for each of the three years in the period ended December 31, 2008. 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, 2008 and 2007, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2008 in conformity with accounting principles generally accepted in the United States of America. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), AAON, Inc.’s internal control over financial reporting as of December 31, 2008, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated March 10, 2009 expressed an unqualified opinion thereon. /s/ GRANT THORNTON LLP Tulsa, Oklahoma March 10, 2009 AnnuAl RepoRt AAon, inC., And SubSidiARieS ConSolidAted bAlAnCe SheetS deCembeR 31, 2008 2007 (in thousands, except share and per share data) ASSetS Current assets: Cash and cash equivalents Accounts receivable, net Inventories, net Prepaid expenses and other Deferred tax assets Total current assets Land Buildings Machinery and equipment Furniture and fixtures Total property, plant and equipment Less: Accumulated depreciation Property, plant and equipment, net Note receivable, long-term Total assets liAbilitieS And StoCkholdeRS’ equity Current liabilities: Revolving credit facility Current maturities of long-term debt Accounts payable Dividends payable Accrued liabilities Total current liabilities Other long-term liabilities Deferred tax liabilities Commitments and Contingencies Stockholders’ equity: Preferred stock, $.001 par value, 7,500,000 shares authorized, no shares issued Common stock, $.004 par value, 75,000,000 shares authorized, 17,208,733 and 18,054,246 issued and outstanding at December 31, 2008 and 2007, respectively Additional paid in capital Accumulated other comprehensive income, net of tax Retained earnings Total stockholders’ equity $ 269 $ 38,804 36,382 428 4,235 80,118 2,153 36,371 87,219 7,076 132,819 72,269 60,550 75 140,743 2,901 91 14,715 2,773 19,038 39,518 121 4,582 - 71 538 778 95,135 96,522 879 38,813 31,849 442 4,312 76,295 2,354 32,211 82,872 6,912 124,349 63,579 60,770 75 137,140 - 91 15,059 2,943 19,414 37,507 239 3,974 - 73 - 1,942 93,405 95,420 27 Total liabilities and stockholders’ equity $ 140,743 $ 137,140 The accompanying notes are an integral part of these statements. 28 08AAon, inC., And SubSidiARieS ConSolidAted StAtementS of inCome yeAR ending deCembeR 31, 2008 2007 2006 (in thousands, except per share data) AAon, inC., And SubSidiARieS ConSolidAted StAtementS of StoCkholdeRS’ equity And CompRehenSiVe inCome Common StoCk ShAReS Amount pAid-in CApitAl ACCumulAted otheR CompRehenSiVe inCome RetAined eARningS totAl (in thousands) AnnuAl RepoRt $ 279,725 $ 262,517 $ 231,460 Balance at December 31, 2005 18,351* $ 74* $ – $ 513 $ 78,908 $ 79,495 Net sales Cost of sales Gross profit Selling, general and administrative expenses Income from operations Interest expense Interest income Other income (expense), net Income before income taxes Income tax provision Net income Earnings per share: Basic Diluted Cash dividends declared per common share Weighted average shares outstanding: Basic Diluted 212,549 205,148 187,570 67,176 57,369 43,890 23,788 21,703 18,059 43,388 35,666 25,831 (71) (10) 27 8 724 (321) 44,068 35,343 15,479 12,187 (81) 24 424 26,198 9,065 28,589 $ 23,156 $ 17,133 1.63 $ 1.60 $ 0.32 $ 1.24* $ 1.22* $ 0.32* $ 0.93* 0.90* 0.32* 17,560 17,855 18,628* 18,927* 18,456* 18,968* $ $ $ $ * Reflects three-for-two stock split effective August 21, 2007. The accompanying notes are an integral part of these statements. 29 Comprehensive income: Net income Foreign currency translation adjustment Total comprehensive income Stock options exercised, including tax benefits Share-based compensation Stock repurchased and retired Dividends Balance at December 31, 2006 Adjustment for the adoption of FASB Interpretation (FIN) No. 48 Comprehensive income: Net income Foreign currency translation adjustment Total comprehensive income Stock options exercised, including tax benefits Share-based compensation Stock repurchased and retired Dividends Balance at December 31, 2007 Comprehensive income: Net income Foreign currency translation adjustment Total comprehensive income Stock options exercised and restricted stock awards vested, including tax benefits Share-based compensation Stock repurchased and retired Dividends – – 408* – (251)* – 18,508* – – 613* – (1,067)* – 18,054* – – 366 – (1,211) – – – 1* – (1)* – 74* – – 4* – (5)* – 73* – – 2 – (4) – – – 3,107 500 (3,422) – 185 – – 5,420 582 (6,187) – – – – 3,307 750 (3,519) – – 17,133 17,133 154 – – – – 667 – – – (432) (4,943) 90,666 (396) 154 17,287 3,108 500 (3,855) (4,943) 91,592 (396) – 23,156 23,156 1,275 – – – – 1,942 – – – 1,275 24,431 5,424 582 (14,581) (20,773) (5,440) 93,405 (5,440) 95,420 – 28,589 28,589 (1,164) – – – – – – – (21,238) (5,621) (1,164) 27,425 3,309 750 (24,761) (5,621) Balance at December 31, 2008 17,209 $ 71 $ 538 $ 778 $ 95,135 $ 96,522 * Reflects three-for-two stock split effective August 21, 2007 The accompanying notes are an integral part of these statements. 30 08 AAon, inC., And SubSidiARieS ConSolidAted StAtementS of CASh flowS Operating Activities Net income Adjustments to reconcile net income to net cash provided by operating activities: Depreciation Provision for losses on accounts receivable Share-based compensation Excess tax benefits from stock options exercised and restricted stock awards vested Gain on disposition of assets Deferred income taxes Changes in assets and liabilities: Accounts receivable Inventories, net Prepaid expenses and other Accounts payable Accrued liabilities Net cash provided by operating activities Investing Activities Proceeds from sale of property, plant and equipment Proceeds from matured certificate of deposit Investment in certificate of deposit Capital expenditures Net cash used in investing activities Financing Activities Borrowings under revolving credit facility Payments under revolving credit facility Borrowings (payments) of long-term debt Stock options exercised Excess tax benefits from stock options exercised and restricted stock awards vested Repurchase of stock Cash dividends paid to stockholders Net cash used in financing activities Effects of exchange rate on cash Net increase (decrease) in cash and cash equivalents Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year yeAR ended deCembeR 31, 2008 2007 2006 (in thousands) $ 28,589 $ 23,156 $ 17,133 9,412 547 750 9,665 203 582 9,146 (59) 500 (1,613) (2,998) (27) (108) (1,852) – 160 (124) (510) (905) (4,779) 13 449 851 33,447 (1,760) (2,095) (172) (1,370) 6,268 31,247 (4,197) (5,790) 776 4,178 103 19,428 17 123 – – – – 3,000 – (2,000) (9,610) (10,874) (17,781) (9,593) (10,751) (16,781) 46,865 12,142 53,706 (43,964) (12,142) (53,706) (118) 1,696 271 2,426 1,613 2,998 (24,761) (20,773) (5,791) (4,958) (24,460) (20,036) (4) (610) 879 131 591 288 $ 269 $ 879 $ (108) 1,256 1,852 (3,855) (2,478) (3,333) 137 (549) 837 288 AnnuAl RepoRt AAon, inC., And SubSidiARieS noteS to ConSolidAted finAnCiAl StAtementS December 31, 2008 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA AAON, Inc. is a Nevada corporation which was incorporated on August 18, 1987. Our subsidiaries include AAON, Inc., an Oklahoma corporation, AAON Coil Products, Inc., a Texas corporation, AAON Canada, Inc., d/b/a Air Wise, an Ontario corporation and AAON Properties, Inc., an Ontario corporation. AAON Properties is the lessor of property in Burlington, Ontario, Canada, to AAON Canada. The Consolidated Financial Statements include our accounts and the accounts of our subsidiaries. Unless the context otherwise requires, references in this Annual Report to “AAON,” the “Company”, “we,” “us,” “our” or “ours” refer to AAON, Inc., and our subsidiaries. We are engaged in the manufacture and sale of air conditioning and heating equipment consisting of standardized and custom rooftop units, chillers, air-handling units, make-up air units, heat recovery units, condensing units, coils and boilers. All significant intercompany accounts and transactions have been eliminated. ReVenue ReCognition We recognize revenues from sales of products when the products are shipped and the title and risk of ownership pass to the customer. Selling prices are fixed based on purchase orders or contractual agreements. Sales allowances and customer incentives are treated as reductions to sales and are provided for based on historical experiences and current estimates. For sales initiated by independent manufacturer representatives, we recognize revenues net of the representatives’ commission. Our policy is to record the collection and payment of sales taxes through a liability account. Common StoCk Split On July 12, 2007, our Board of Directors approved a three-for-two stock split of the outstanding stock for shareholders of record as of August 3, 2007. The stock split was treated as a 50% stock dividend which was distributed on August 21, 2007. The applicable share and per share data for 2007 and 2006 included herein has been restated to reflect the stock split. CuRRenCy Foreign currency transactions and financial statements are translated in accordance with Financial Accounting Standards Board (“FASB”) Statement No. 52, Foreign Currency Translation. We use the U.S. dollar as our functional currency, except for the Canadian subsidiaries, which use the Canadian dollar. Adjustments arising from translation of the Canadian subsidiaries’ financial statements are reflected in accumulated other comprehensive income. Transaction gains or losses that arise from exchange rate fluctuations applicable to transactions denominated in Canadian currency are included in the results of operations as incurred. uSe of eStimAteS The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Because these estimates and assumptions require significant judgment, future actual results could differ from those estimates and could have a significant impact on our results of operations, financial position and cash flows. We reevaluate our estimates and assumptions on a monthly basis. The accompanying notes are an integral part of these statements. 31 32 081. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) uSe of eStimAteS (Continued) inVentoRieS (Continued) The most significant estimates include the allowance for doubtful accounts, inventory reserves, warranty accrual, medical insurance accrual, and share-based compensation. Actual results could differ materially from those estimates. Inventory balances at December 31, 2008 and 2007, and the related changes in the allowance for excess and obsolete inventories for the three years ended December 31, 2008, 2007 and 2006, are as follows: AnnuAl RepoRt ConCentRAtionS Our customers are concentrated primarily in the domestic commercial and industrial new construction and replacement markets. To date, virtually all of our sales have been to the domestic market, with foreign sales accounting for less than 5% of revenues in 2008. No customer accounted for 10% of our sales during 2008, 2007 or 2006 or more than 5% of our accounts receivable balance at December 31, 2008 or 2007. CASh And CASh equiVAlentS Cash and cash equivalents consist of bank deposits and highly liquid, interest-bearing money market funds with initial maturities of three months or less. ACCountS ReCeiVAble We grant credit to our customers and perform ongoing credit evaluations. We generally do not require collateral or charge interest. We establish an allowance for doubtful accounts based upon factors surrounding the credit risk of specific customers, historical trends, economic and market conditions and the age of the receivable. Past due accounts are generally written off against the allowance for doubtful accounts only after all collection attempts have been exhausted. Accounts receivable and the related allowance for doubtful accounts are as follows: Accounts receivable Less: Allowance for doubtful accounts Total, net deCembeR 31, 2008 2007 (in thousands) $ $ 39,599 (795) 38,804 $ $ 39,220 (407) 38,813 yeAR ended deCembeR 31, 2008 2007 2006 (in thousands) Allowance for doubtful accounts: Balance, beginning of period Provision for losses on accounts receivable Adjustments to provision Accounts receivable written off, net of recoveries $ $ 407 674 (127) (159) Balance, end of period $ 795 $ 266 625 (422) (62) 407 $ 685 589 (648) (360) $ 266 Raw materials Work in process Finished goods Less: Allowance for excess and obsolete inventories deCembeR 31, 2008 2007 (in thousands) $ 32,212 $ 27,651 2,545 1,975 36,732 (350) 1,760 2,788 32,199 (350) Total, net $ 36,382 $ 31,849 Allowance for excess and obsolete inventories: Balance, beginning of period Provision for excess and obsolete inventories Adjustments to reserve Balance, end of period pRopeRty, plAnt And equipment yeAR ended deCembeR 31, 2008 2007 2006 (in thousands) $ 350 800 (800) $ 350 $ 350 - - - - $ 350 $ 350 $ 350 Property, plant and equipment are stated at cost. Maintenance and repairs, including replacement of minor items, are charged to expense as incurred; major additions to physical properties are capitalized. Property, plant and equipment are depreciated using the straight-line method over the following estimated useful lives: deSCRiption Buildings Machinery and equipment Furniture and fixtures impAiRment of long-liVed ASSetS yeARS 10-40 3-15 2-5 We evaluate long-lived assets for impairment when events or changes in circumstances indicate, in management’s judgment, that the carrying value of such assets may not be recoverable. When an indicator of impairment has occurred, management’s estimate of undiscounted cash flows attributable to the assets is compared to the carrying value of the assets to determine whether impairment has occurred. If an impairment of the carrying value has occurred, the amount of the impairment recognized in the financial statements is determined by estimating the fair value of the assets and recording a loss for the amount that the carrying value exceeds the estimated fair value. Management determined no impairment was required during 2008, 2007 and 2006. inVentoRieS CommitmentS And ContRACtuAl AgReementS Inventories are valued at the lower of cost or market. Cost is determined by the first-in, first-out (“FIFO”) method. We establish an allowance for excess and obsolete inventories based on product line changes, the feasibility of substituting parts and the need for supply and replacement parts. We are a party to several short-term, cancelable and noncancelable, fixed price contracts with major suppliers for the purchase of raw material and component parts. During 2009, in the normal course of business we expect to purchase approximately $4.7 million of copper in the form of legally binding commitments. 33 34 08 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) CommitmentS And ContRACtuAl AgReementS (Continued) eARningS peR ShARe AnnuAl RepoRt We entered into the following legally binding copper commitments to lock in pricing due to the volatility in the market during 2008: poundS peR month monthS pRiCe totAl (in thousands) 120 25 25 12 12 12 2.41 2.02 2.21 (in thousands) $ 3,469 606 663 $ 4,738 ACCRued liAbilitieS At December 31, accrued liabilities were comprised of the following: Warranty Commissions Payroll Workers’ compensation Medical self-insurance Other Total wARRAntieS 2008 2007 (in thousands) $ 6,589 $ 6,308 8,816 1,883 610 886 254 8,851 2,175 1,127 608 345 $ 19,038 $ 19,414 A provision is made for estimated warranty costs at the time the related products are sold based upon the warranty period, historical trends, new products and any known identifiable warranty issues. Warranty expense was $4.0 million, $4.0 million and $2.4 million for the years ended December 31, 2008, 2007 and 2006, respectively. Changes in the warranty accrual during the years ended December 31, 2008, 2007 and 2006 are as follows: Balance, beginning of the year Payments made Warranties issued Changes in estimate related to preexisting warranties 2008 2007 2006 $ 6,308 (3,608) 3,889 - (in thousands) $ 5,572 (3,321) 3,757 300 $ 6,282 (3,128) 4,343 (1,925) Balance, end of period $ 6,589 $ 6,308 $ 5,572 In 2007, the provision for warranties was increased due to an extension in the warranty period. In 2006, the provision for warranties was decreased due to a change in estimate related to preexisting warranties occurring in the fourth quarter of 2006. The change in estimate was due to factors stated above, such as current information on historical trends and a reduction in identifiable warranty issues. Basic net income per share is calculated by dividing net income by the weighted average number of shares of common stock outstanding during the period. Diluted net income per share assumes the conversion of all potentially dilutive securities and is calculated by dividing net income by the sum of the weighted average number of shares of common stock outstanding plus all potentially dilutive securities. Dilutive common shares consist primarily of stock options and restricted stock awards. The following table sets forth the computation of basic and diluted earnings per share: Numerator: Net income Denominator: Denominator for basic earnings per share – Weighted average shares Effect of dilutive stock options Denominator for diluted earnings per share – Weighted average shares Earnings per share Basic Diluted 2008 yeARS ended, 2007* 2006* (in thousands except share and per share data) $ 28,589 $ 23,156 $ 17,133 17,560,295 18,628,029 18,456,108 294,568 299,015 511,486 17,854,863 18,927,044 18,967,594 $ $ 1.63 1.60 $ $ 1.24 1.22 $ $ 0.93 0.90 Anti-dilutive shares Weighted average exercise price 308,250 282,100 269,250 $ 16.63 $ 17.81 $ 16.19 * Reflects three-for-two stock split effective August 21, 2007. AdVeRtiSing Advertising costs are expensed as incurred. Advertising expense was approximately $635,000, $784,000 and $549,000 for the years ended December 31, 2008, 2007 and 2006, respectively. ReSeARCh And deVelopment Research and development costs are expensed as incurred. Research and development expense was $2.6 million, $2.5 million and $2.0 million for the years ended December 31, 2008, 2007 and 2006, 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. 35 36 08 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) 1. buSineSS, SummARy of SignifiCAnt ACCounting poliCieS And otheR finAnCiAl dAtA (Continued) pRofit ShARing bonuS plAn new ACCounting pRonounCementS (Continued) AnnuAl RepoRt We maintain a discretionary profit sharing bonus plan under which 10% of pre-tax profit at each subsidiary is paid to eligible employees on a quarterly basis in order to reward employee productivity. Eligible employees are regular full-time employees who are actively employed and working on the first day of the calendar quarter and remain continuously, actively employed and working on the last day of the quarter and who work at least 80% of the quarter. Profit sharing expense was $5.1 million, $4.2 million and $3.3 million for the years ended December 31, 2008, 2007 and 2006, respectively. defined ContRibution plAn - 401(k) We sponsor a defined contribution benefit plan (“the Plan”). Eligible employees may make contributions in accordance with the Plan and IRS guidelines. In addition, effective May 30, 2005, the Plan was amended to provide for automatic enrollment and provided for an automatic increase to the deferral percent at January 1st of each year and each year thereafter, unless the employee elects to decline the automatic increase and enrollment. Beginning with pay periods after May 30, 2005, the one year enrollment waiting period was waived. Administrative expenses we paid for the plan were approximately $93,000, $98,000 and $85,000 for the years ended 2008, 2007 and 2006, respectively. After January 1, 2007, our matching increased to 50% of the employee’s salary deferral up to the first 9% of compensation. From January 1, 2006 to December 31, 2006, we matched 50% of the employee’s salary deferral up to the first 7% of compensation. We contribute in the form of cash and direct the investment to shares of AAON Stock. No other purchases of AAON stock are permitted. Employees are 100% vested in salary deferral contributions and vest 20% per year at the end of years two through six of employment in employer matching contributions. We made matching contributions of $1.4 million, $1.3 million and $1.0 million in 2008, 2007 and 2006, respectively. new ACCounting pRonounCementS In September 2006, the FASB released SFAS No. 157, Fair Value Measurements (“SFAS 157”), which defines fair value and establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. Although SFAS 157 applies to (and amends) the provisions of existing authoritative literature, it does not, of itself, require any new fair value measurements or establish valuation standards. SFAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years. Adoption of SFAS 157 did not have a material impact on our Consolidated Financial Statements. In February, 2007, the FASB issued FASB Statement No. 159, The Fair Value Option for Financial Assets and Financial Liabilities (“SFAS 159”), which creates an alternative measurement treatment for certain financial assets and financial liabilities. SFAS 159 permits fair value to be used for both the initial and subsequent measurements on an instrument by instrument basis, with changes in the fair value to be recognized in earnings as those changes occur. This election is referred to as the fair value option. SFAS 159 also requires additional disclosures to compensate for the lack of comparability that will arise from the use of the fair value option. SFAS 159 is effective for fiscal years beginning after November 15, 2007. The fair value option has not been elected for any financial assets or liabilities at December 31, 2008. In December 2007, the FASB issued SFAS No. 141R, Business Combinations (“SFAS 141R”), which replaced FASB Statement 141, Business Combinations, which changes the accounting for business combinations and noncontrolling interests. Among other things, when compared to the predecessor guidance SFAS 141R will require (i) more assets acquired and liabilities assumed to be measured at fair value as of the acquisition date, (ii) liabilities related to contingent consideration to be remeasured to fair value each subsequent reporting period, and (iii) acquirer in preacquisition periods to expense all acquisition-related costs. SFAS 141R must be applied prospectively for fiscal years beginning after December 15, 2008. We do not expect adoption of SFAS 141R to have a material impact on our Consolidated Financial Statements. In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated Financial Statements - an Amendment of ARB No. 51 (“SFAS 160”), which changes the accounting and reporting for minority interests, which will be recharacterized as noncontrolling interests and classified as a component of equity.  SFAS 160 must be adopted by us no later than January 1, 2009.   We do not expect adoption of SFAS 160 to have a material impact on our Consolidated Financial Statements. In March 2008, the FASB issued SFAS No. 161, Disclosures about Derivative Instruments and Hedging Activities - an Amendment of FASB Statement No.  133 (“SFAS 161”), which requires enhanced disclosures about (i)  how and why an entity uses derivative instruments, (ii)  how derivative instruments and related hedged items are accounted for under SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities, as amended (“SFAS 133”) and its related interpretations and (iii)  how derivative instruments and related hedged items affect an entity’s financial position, financial performance and cash flows.  SFAS 161 will be effective for financial statements issued for fiscal years and interim periods beginning after November 15, 2008.  We do not expect adoption of SFAS 161 to have a material impact on our Consolidated Financial Statements. In June 2008, the Emerging Issues Task Force (“EITF”) issued No. 03-6-1, Determining Whether Instruments Granted in Share-Based Payment Transactions Are Participating Securities (“EITF 03-6-1”), which addresses whether instruments granted in share-based payment transactions are participating securities prior to vesting and, therefore, need to be included in the earnings allocation in computing earnings per share (“EPS”) under the two-class method.  EITF 03-6-1 will be effective for financial statements issued for fiscal years beginning after December 15, 2008, and interim periods within those years.  All prior-period EPS data presented will be adjusted retrospectively to conform to the provisions of EITF 03-6-1. We are evaluating the expected impact of adoption of EITF 03-6-1. In December 2008, the FASB issued FSP No. FAS 132 R-1, Employers’ Disclosures about Postretirement Benefit Plan Assets (“FAS 132R-1”), which provides guidance on an employer’s disclosures about plan assets of a defined benefit pension or other postretirement plan and requires employers to provide more transparency about the assets held by retirement plan and the concentrations of risk in those plans. FAS 123 R-1 will be effective for fiscal years beginning after December 15, 2009. We do not expect the adoption of FAS 132 R-1 to have a material impact on our Consolidated Financial Statements. SegmentS Management has reviewed our business operations and determined that we have two operating segments as defined in SFAS 131, Disclosures about Segments of an Enterprise and Related Information (“SFAS 131”). We have a domestic and foreign operating segment. The domestic operating segment includes the operations of AAON, Inc. and AAON Coil Products, Inc. The foreign operating segment includes the operations of AAON Canada and AAON Properties. Management has determined that the foreign operating segment does not constitute a separate reporting segment based on the quantitative threshold tests of SFAS 131. We sell similar products with similar economic characteristics to similar classes of customers. The technologies and operations are highly integrated. Revenues and costs are reviewed monthly by management on a product line basis as a single business segment. 2. SupplementAl CASh flow infoRmAtion Interest payments of approximately $71,000, $10,000 and $81,000 were made during the years ended December 31, 2008, 2007 and 2006, respectively. Payments for income taxes of $12.7 million, $10.2 million and $6.5 million were made during the years ended December 31, 2008, 2007 and 2006, respectively. Dividends payable of $2.8 million and $2.9 million were accrued as of December 31, 2008 and 2007 and paid on January 3, 2009 and 2008, respectively. 37 38 083. ReVolVing CRedit fACility The tax effect of temporary differences giving rise to our deferred income taxes at December 31 is as follows: AnnuAl RepoRt Our revolving credit facility provides for maximum borrowings of $15.2 million which is provided by the Bank of Oklahoma, National Association. Under the line of credit, there is one standby letter of credit totaling $1.0 million. The letter of credit was a requirement of our workers compensation insurance and has been renewed and will expire December 31, 2009. Interest on borrowings is payable monthly at the Wall Street Journal prime rate less 0.5% or LIBOR plus 1.6%, at our election (3.50% at December 31, 2008). No fees are associated with the unused portion of the committed amount. At December 31, 2008, we had $2.9 million borrowed under the revolving credit facility. We had no borrowings outstanding under the revolving credit facility at December 31, 2007. Borrowings available under the revolving credit facility at December 31, 2008, were $11.3 million. At December 31, 2008 and 2007, we were in compliance with our financial ratio covenants. The covenants are related to our tangible net worth, total liabilities to tangible net worth ratio and working capital. At December 31, 2008 our tangible net worth was $96.5 million. Our total liabilities to tangible net worth ratio was 2.2. Our working capital was $40.6 million. On July 30, 2008, we renewed the line of credit with a maturity date of July 30, 2009. We expect to renew our revolving credit agreement in July 2009. We do not anticipate that the current situation in the credit market will impact our renewal. 4. debt Short-term debt at December 31, 2008 and 2007 consisted of notes payable totaling approximately $91,000 due in 2009 and 2008, respectively. In 2008 and 2007, respectively, the notes payable are due in monthly installments of $7,588, with an interest rate of 4.148%, related to a computer capital lease. 5. inCome tAxeS We follow the liability method of accounting for income taxes, which provides that deferred tax liabilities and assets are based on the difference between the financial statement and income tax bases of assets and liabilities using currently enacted tax rates. The income tax provision consists of the following: Current Deferred yeAR ending deCembeR 31, 2008 2007 2006 (in thousands) $ $ 16,163 (684) 15,479 $ $ 12,631 (444) 12,187 $ $ 9,556 (491) 9,065 The reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows: The “Other” tax rate primarily relates to certain domestic credits. Federal statutory rate State income taxes, net of federal benefit Other yeAR ending deCembeR 31, 2008 2007 2006 (in thousands) 35% 3% (3%) 35% 35% 3% (3%) 35% 35% 4% (4%) 35% Net current deferred assets and (liabilities) relating to: Valuation reserves Warranty accrual Other accruals Other, net Net long-term deferred (assets) and liabilities relating to: Depreciation and amortization NOL Share-based compensation 2008 2007 2006 (in thousands) $ 446 $ 295 $ 2,567 1,262 (40) 4,235 7,247 (2,265) (400) $ $ 2,456 1,430 131 4,312 6,376 (2,019) (383) $ $ $ $ $ 4,582 $ 3,974 $ 240 2,172 1,492 50 3,954 5,492 (1,242) (189) 4,061 The total net operating loss (“NOL”) deferred tax asset of approximately $2.3 million relates to AAON Canada. The NOL’s originating in 2008, 2007 and 2006 will expire in twenty years, nineteen years and eighteen years, respectively. The NOL’s originating in 2005 will expire in 7 years. We file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. Effective January 1, 2007, we adopted FIN 48. The total amount of unrecognized tax benefits is as follows: Balance at January 1, 2008 Change as a result of tax positions taken during an earlier period Change as a result of tax positions taken during the current period Change as a result of settlements with tax authorities Change as a result of a lapse of the applicable statute of limitations Balance at December 31, 2008 (in thousands) $ 253 - - (168) (35) $ 50 The total amount of unrecognized tax benefits that if recognized would impact the effective tax rate is approximately $50,000. We recognize accrued interest and penalties related to unrecognized tax benefits in income tax expense. At December 31, 2008 and 2007, we had accrued approximately $6,000 and $110,000 for the potential payment of interest and penalties, respectively. The total amount of unrecognized tax benefits at December 31, 2008 is approximately $50,000 related to tax positions for which it is reasonably possible that the total amounts could significantly decrease during the next twelve months. This amount represents the unrecognized tax benefits comprised of items related to determination of state nexus and intercompany charges. Resolution of these tax benefits will occur during the year ending December 31, 2009. As of December 31, 2008, we are subject to U.S. Federal income tax examinations for the tax years 2005 through 2008, and to non-U.S. income tax examinations for the tax years of 2005 through 2008. In addition, we are subject to state and local income tax examinations for the tax years 2004 through 2008. 39 40 08 6. ShARe-bASed CompenSAtion We have historically maintained a stock option plan for key employees, directors and consultants (“the 1992 Plan”). The 1992 plan provided for 4.4 million shares of common stock to be issued under the plan. Under the terms of the plan, the exercise price of shares granted may not be less than 85% of the fair market value at the date of the grant. Options granted to directors prior to May 25, 2004, vest one year from the date of grant and are exercisable for nine years thereafter. Options granted to directors on or after May 25, 2004, vest one-third each year, commencing one year after the date of grant. All other options granted vest at a rate of 20% per year, commencing one year after date of grant, and are exercisable during years 2-10. On May 22, 2007, our stockholders adopted a Long-Term Incentive Plan which provides an additional 750,000 shares that can be granted in the form of stock options, stock appreciation rights, restricted stock awards, performance units and performance awards. Since inception of the Plan, non-qualified stock options and restricted stock awards have been granted with the same vesting schedule as the previous plan. Under the LTIP, the exercise price of shares granted may not be less than 100% of the fair market value at the date of the grant. We apply the provisions of Statement of Financial Accounting Standards (“SFAS”) No. 123R Share-Based Payment (“SFAS 123R”). The compensation cost is based on the grant date fair value of stock options issued calculated using a Black-Scholes-Merton Option Pricing Model, or the grant date fair value of a restricted share less the present value of dividends, in accordance with the provisions of SFAS 123R. We recognized approximately $400,000 and $526,000 for the year ended December 31, 2008 and 2007, respectively, in pre-tax compensation expense related to stock options in the Consolidated Statements of Income. The total pre-tax compensation cost related to unvested stock options not yet recognized as of December 31, 2008 is $1.1 million and is expected to be recognized over a weighted-average period of 2.1 years. The following assumptions were used to determine the fair value of the unvested stock options on the original grant date for expense recognition purposes for options granted during the years ended December 31, 2008, 2007 and 2006: Directors and Officers: Expected dividend yield Expected volatility Risk-free interest rate Expected life Forfeiture rate Employees: Expected dividend yield Expected volatility Risk-free interest rate Expected life Forfeiture rate 2008 2007 2006 1.72% 45.16% 3.08% 7.0 yrs 0% 1.72% 44.47% 3.05% 8.0 yrs 31% N/A N/A N/A N/A N/A 1.67% 41.92% 4.61% 6.3 yrs 28% 2.05% 42.76% 5.05% 8.0 yrs 0% 2.05% 42.33% 4.84% 6.3 yrs 28% 41 AnnuAl RepoRt 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. We initiated a dividend payout in the second quarter of 2006. We initially used the Board of Director approved semi-annual dividends of $0.20 per share through July 3, 2007 to calculate the expected dividend yield. The Board of Directors approved future dividend payments of $0.16 per share related to the stock split effective August 21, 2007 and the table above was adjusted to reflect the change. The following is a summary of stock options outstanding as of December 31, 2008: optionS outStAnding numbeR outStAnding At deCembeR 31, 2008 weighted AVeRAge RemAining ContRACtuAl life weighted AVeRAge exeRCiSe pRiCe AggRegAte intRinSiC VAlue optionS exeRCiSAble numbeR exeRCiSAble At deCembeR 31, 2008 weighted AVeRAge exeRCiSe pRiCe 82,913 174,563 33,900 54,000 234,200 579,576 0.78 4.10 6.71 7.69 8.01 5.69 3.85 8.94 11.60 14.79 17.29 17.03 11.94 9.28 6.09 3.59 $ 12.29 $ 11.12 82,913 139,763 22,500 23,600 68,200 336,976 3.85 8.47 11.64 14.53 17.32 $ 9.76 RAnge of exeRCiSe pRiCeS 0.00 – 3.85 5.73 – 11.29 11.40 – 12.00 12.68 – 15.55 15.99 – 21.01 Total A summary of option activity under the plan as of December 31, 2008, is as follows: optionS ShAReS Outstanding at December 31, 2005 Granted Exercised Forfeited or Expired Outstanding at December 31, 2006 Granted Exercised Forfeited or Expired Outstanding at December 31, 2007 Granted Exercised Forfeited or Expired Outstanding at December 31, 2008 Exercisable at December 31, 2008 1,670,520 269,251 (406,950) (71,325) 1,461,496 139,188 (573,374) (98,377) 928,933 50,000 (348,075) (51,282) 579,576 336,976 weighted AVeRAge exeRCiSe pRiCe 5.01 15.93 3.09 11.11 7.33 15.98 4.24 14.80 9.47 16.64 4.87 15.76 12.29 9.76 $ weighted AVeRAge RemAining ContRACtuAl teRm AggRegAte intRinSiC VAlue ($000) 5.69 4.14 $ $ 4,980 3,747 42 08 The weighted average grant date fair value of options granted during 2008 and 2007 was $6.95 and $7.07, respectively. The total intrinsic value of options exercised during the year ended December 31, 2008 and 2007 was $6.4 million and $8.7 million, respectively. The cash received from options exercised during the year ended December 31, 2008 and 2007 was $1.7 million and $2.4 million, respectively. The impact of these cash receipts is included in financing activities in the accompany Consolidated Statements of Cash Flows. A summary of the status of the unvested stock options for the year ended December 31, 2008, is as follows: Unvested at January 1, 2008 Granted Vested Forfeited Unvested at December 31, 2008 ShAReS 335,300 50,000 (92,700) (50,000) 242,600 weighted AVeRAge gRAnt dAte fAiR VAlue $ $ 6.49 6.95 6.23 6.48 6.68 The total fair value of shares vested during the year ended December 31, 2008 was approximately $577,000. During 2007, the Compensation Committee of the Board of Directors authorized and issued restricted stock awards to key employees and directors. The restricted stock award program offers the opportunity to earn shares of AAON Common Stock over time, rather than options that give the right to purchase stock at a set price. Restricted stock awards granted to directors vest one-third each year. All other restricted stock awards vest at a rate of 20% per year. Restricted stock awards are grants that entitle the holder to shares of common stock subject to certain terms. The fair value of restricted stock awards is based on the fair market value of AAON common stock on the respective grant dates, reduced for the present value of dividends. These awards are recorded at their fair value on the date of grant and compensation cost is recorded using straight-line vesting over the service period. The weighted average grant date fair value of restricted stock awards granted during 2008 and 2007 was $19.34 and $20.85 per share, respectively. We recognized approximately $350,000 and $56,000 for the year ended December 31, 2008 and 2007, respectively in pre-tax compensation expense related to restricted stock awards in the Consolidated Statements of Income. In addition, as of December 31, 2008, unrecognized compensation cost related to unvested restricted stock awards was approximately $685,000 which is expected to be recognized over a weighted average period of 1.7 years. A summary of the unvested restricted stock awards for the year ended December 31, 2008, is as follows: Unvested at January 1, 2008 Granted Vested Forfeited Unvested at December 31, 2008 ShAReS 37,850 16,850 (11,550) (700) 42,450 SFAS 123R requires that cash flows from the exercise of stock options resulting from tax benefits in excess of recognized cumulative compensation costs be classified as financing cash flows. For the twelve months ended December 31, 2008 and 2007, the excess tax benefits of stock options exercised and restricted stock awards vested was $1.6 million and $3.0 million respectively. AnnuAl RepoRt 7. StoCkholdeR RightS plAn During 1999, the Board of Directors adopted a Stockholder Rights Plan (the “Plan”), which was amended in 2002. Under the Plan, stockholders of record on March 1, 1999, received a dividend of one right per share of our Common Stock. Stock issued after March 1, 1999, contains a notation incorporating the rights. Each right entitles the holder to purchase one one-thousandth (1/1,000) of a share of Series A Preferred Stock at an exercise price of $90. The rights are traded with our Common Stock. The rights become exercisable after a person has acquired, or a tender offer is made for, 15% or more of our Common Stock. If either of these events occurs, upon exercise the holder (other than a holder owning more than 15% of the outstanding stock) will receive the number of shares of our Common Stock having a market value equal to two times the exercise price. The rights may be redeemed by us for $0.001 per right until a person or group has acquired 15% of our Common Stock. The rights expire on August 20, 2012. 8. StoCk RepuRChASe Following repurchases of approximately 12% of our outstanding common stock between September 1999 and September 2001, we announced and began another stock repurchase program on October 17, 2002, targeting repurchases of up to an additional 2.0 million shares of our outstanding stock. On February 14, 2006, the Board of Directors approved the suspension of our repurchase program. Through February 14, 2006, we had repurchased a total of 1,886,796 shares under this program for an aggregate price of $22,034,568, or an average of $11.68 per share. We purchased the shares at the then current market price. On November 6, 2007, we began a new stock buyback program, targeting repurchases of up to approximately 10% (1.8 million shares) of our outstanding stock from time to time in open market transactions. Through December 31, 2008, we had repurchased a total of 1,692,258 shares under this program for an aggregate price of $33,710,939, or an average price of $19.92 per share. We purchased the shares at the current market price. On July 1, 2005, we entered into a stock repurchase arrangement by which employee participants in AAON’s 401(k) savings and investment plan are entitled to have shares of AAON stock in their accounts sold to us to provide diversification of their investments. The maximum number of shares to be repurchased is unknown under the program as the amount is contingent on the number of shares sold by employees. Through December 31, 2008, we repurchased 630,906 shares for an aggregate price of $10,102,687, or an average price of $16.01 per share. We purchased the shares at the current market price. On November 7, 2006, the Board of Directors authorized us to repurchase shares from certain directors following their exercise of stock options. The maximum number of shares to be repurchased is unknown under the program as the amount is contingent on the number of shares sold by directors. Through December 31, 2008, we repurchased 340,375 shares for an aggregate price of $6,957,423, or an average price of $20.44 per share. We purchased the shares at the current market price. 9. diVidendS On February 14, 2006, the Board of Directors voted to initiate a semi-annual cash dividend. We initially paid Board of Director approved semi-annual dividends of $0.20 per share. The Board of Directors approved future dividend payments of $0.16 per share related to the stock split effective August 21, 2007. Dividends were declared to shareholders of record at the close of business on June 12, 2008 and December 12, 2008 and paid on July 3, 2008 and January 2, 2009. We paid cash dividends of $5.8 million and declared dividends payable of $2.8 million for the year ended December 31, 2008. Cash dividend payments of $5.0 million were made in 2007, and $2.9 million in dividends were declared and accrued as a liability in December 2007 for payment in January 2008. 43 44 08 AnnuAl RepoRt Exhibit 23.1 ConSent of independent RegiSteRed publiC ACCounting fiRm We have issued our reports dated March 10, 2009, with respect to the consolidated financial statements and internal control over financial reporting included in the Annual Report of AAON, Inc. on Form 10-K for the year ended December 31, 2008.  We hereby consent to the incorporation by reference of said reports in the Registration Statements of AAON, Inc. on Forms S-8 (File No. 333- 52824, effective December 28, 2000 and File No. 333-151915, effective June 25, 2008). /s/ GRANT THORNTON LLP Tulsa, Oklahoma March 10, 2009 10. ContingenCieS We are subject to claims and legal actions that arise in the ordinary course of business. Management believes that the ultimate liability, if any, will not have a material effect on our results of operations or financial position. 11. quARteRly ReSultS (unAudited) The following is a summary of the quarterly results of operations for the years ending December 31, 2008 and 2007: 2008 Net sales Gross profit Net income Earnings per share: Basic Diluted 2007 Net sales Gross profit Net income Earnings per share: Basic Diluted mARCh 31 quARteR ended june 30 SeptembeR 30 deCembeR 31 (in thousands, except per share data) $ 65,456 $ 74,781 $ 79,279 $ 60,209 15,652 6,434 0.36 0.35 17,990 7,760 0.43 0.43 20,018 8,355 13,516 6,040 0.49 0.47 0.35 0.35 mARCh 31 quARteR ended june 30 SeptembeR 30 deCembeR 31 (in thousands, except per share data) $ 58,628 $ 70,835 $ 70,907 $ 62,147 15,722 6,317 0.34* 0.33* 15,598 6,877 0.37* 0.36* 13,640 5,382 12,409 4,580 0.29 0.28 0.25 0.24 *Reflects three-for-two stock split effective August 21, 2007. 45 46 08 I, Norman H. Asbjornson, certify that: I, Kathy I. Sheffield, certify that: CeRtifiCAtion CeRtifiCAtion Exhibit 31.1 AnnuAl RepoRt Exhibit 31.2 1. 2. 3. I have reviewed this Annual Report on Form 10-K of AAON, Inc. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 1. 2. 3. I have reviewed this Annual Report on Form 10-K of AAON, Inc. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: a) b) c) d) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including our consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and disclosed in this report any change in the registrant’s internal controls over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and a) b) c) d) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including our consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and disclosed in this report any change in the registrant’s internal controls over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions): 5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions): a) b) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. a) b) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. Date: March 10, 2009 47 /s/ Norman H. Asbjornson Norman H. Asbjornson Chief Executive Officer Date: March 10, 2009 /s/ Kathy I. Sheffield Kathy I. Sheffield Chief Financial Officer 48 08 CeRtifiCAtion puRSuAnt to 18 u.S.C. SeCtion 1350, AS Adopted puRSuAnt to SeCtion 906 of the SARbAneS–oxley ACt of 2002 Exhibit 32.1 In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 31, 2008, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Norman H. Asbjornson, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and AnnuAl RepoRt Exhibit 32.2 CeRtifiCAtion puRSuAnt to 18 u.S.C. SeCtion 1350, AS Adopted puRSuAnt to SeCtion 906 of the SARbAneS–oxley ACt of 2002 In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 31, 2008, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kathy I. Sheffield, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and our results of (2) The information contained in the Report fairly presents, in all material respects, the financial condition and our results of operations. operations. March 10, 2009 /s/ Norman H. Asbjornson Norman H. Asbjornson Chief Executive Officer March 10, 2009 /s/ Kathy I. Sheffield Kathy I. Sheffield Chief Financial Officer 49 50 08 OffiCers BOArd Of direCtOrs AnnuAl RepoRt noRmAn h. ASbjoRnSon has served as President and a director of the Company since 1988. Mr. Asbjornson has been in senior management positions in the heating and air conditioning industry for over 40 years. kAthy i. Sheffield became treasurer of the Company in 1999 and Vice President in June of 2002. Ms. Sheffield previously served as Accounting Manager of the Company from 1988 to 1999. RobeRt g. feRguS has served as Vice President of the Company since 1988. Mr. Fergus has been in senior management positions in the heating and air conditioning industry for over 40 years. dAVid e. knebel has served as Vice President of Sales for the Company since 2005. Mr. Knebel has been in the heating and air conditioning industry for 39 years, holding positions in design, research, software development, engineering, teaching, sales and senior management. john b. johnSon, jR. has served as Secretary and a director of the Company since 1988. Mr. Johnson is a member of the firm of Johnson, Jones, Dornblaser, Coffman & Shorb, which serves as General Counsel of the Company. Front row, left to right: John B. Johnson, Jr., Norman H. Asbjornson & Charles C. Stephenson, Jr. Back row, left to right: Paul K. Lackey, Jr., A.H. McElroy, II, Jack E. Short & Jerry R. Levine noRmAn h. ASbjoRnSon President/CEO john b. johnSon, jR. Secretary ChARleS C. StephenSon, jR. has served as a director of the Company since 1996. From 1987 to January 2006, Mr. Stephenson served as Chairman of the Board of Vintage Petroleum, Inc., based in Tulsa, Oklahoma. jACk e. ShoRt was elected to the Board in July 2004 and is the Chairman of the Audit Committee. Mr. Short was employed by PriceWaterhouseCoopers for 29 years and retired as the managing partner of the Oklahoma practice in 2001. A.h. mCelRoy, ii was elected as a director of the Company in 2007. From 1997 to present, Mr. McElroy has served as President and CEO of McElroy Manufacturing, Inc., a manufacturer of fusion equipment and fintube machines. pAul k. lACkey, jR. was elected as a director of the Company in 2007. From 2001 to present, Mr. Lackey has served as CEO and president of NORDAM, a privately held aerospace company. jeRRy R. leVine has served as a director of the Company since 2008. Since 1999 Mr. Levine has provided investor and shareholder relations services and advice to the Company. COrpOrAte dAtA transfer Agent and Registrar– Progressive Transfer Company, 1981 East Murray-Holladay Road, Suite 200, Salt Lake City, Utah 84117 Auditors–Grant Thornton LLP, 2431 East 61st Street, Suite 500, Tulsa, Oklahoma 74136 General Counsel–Johnson, Jones, Dornblaser, Coffman & Shorb–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, Jerry.levine@worldnet.att.net Executive Offices– 2425 South Yukon Avenue, Tulsa, Oklahoma 74107 Common Stock– NASDAQ-AAON 51 52 08tHAnks tO Our emplOyees WILLIAM ABBOTT LUIS ACOSTA MARIA D. ACOSTA MARIA L. ACOSTA MARTHA ACOSTA MARTIN ACOSTA ROGELIO ACOSTA GUERRERO ANDRES ACOSTA-LUJAN DANIEL ADAIR ENRIGUETA ADAME ANGELA ADAMS DERRICK ADAMS GARY ADAMS LARRY ADAMS RODNEY ADAMS ISAAC ADERINBOYE RITA ADIMARI BRIAN ADKINS KAREN AFRIFAH MARIA AGUAYO ARTURO AGUILAR HUMBERTO AGUILAR MIGUEL AGUILERA PRITESH AHLUWALI ROSHANLAL AHLUWALIA TAIWO AINA DANIEL ALAGDON MARTHA ALANIS ENRIQUE ALAVATA IMELDA ALBA SOCORRO ALBA JULIO ALBINO NORMAN ALBRIGHT JAMES ALEXANDER MICHAEL ALEXANDER SHANNON ALFORD BRENDAN ALLEN CARNELL ALLEN DONALD ALLEN KEVIN ALLEN TARIK ALSAADI JENNIFER ALSTON FELIPE ALVARADO MICHAEL AMBURGEY JEHAD AMIREH JOSE ANDRADA MARGARITO ANGELES WESLEY ANSELME ALFREDO ANTONIO URIEL ARELLANO GUERRA JOSE ARGUMEDO-RUIZ RONDELL ARMSTRONG MARIA ARREDONDO GERARDO ARROYO ELEAZAR ARROYO ALVAREZ NORMAN ASBJORNSON SCOTT ASBJORNSON GARY ASHMORE DWIGHT AUSTIN IVAN AVALOS JESUS AVELAR SALDIVAR JOSEPH AVILA ORLANDO AYALA JOSE AYVAR NORA BACKUS RICHARD BACKUS JASWINDER BADESHA JAHANGIR BAHRAQMI DWIGHT BAKER ERIC BAKER JOHN BALDWIN SARBJIT BANWAIT CAROLYN BARBER RAY BARBER CANDY BARBOSA JUSTIN BARLETT DANIEL BARNARD DAVID BARNETT CESAR BARRAZA MARIBEL BARRIOS NEREYDA BARRIOS DE PEREZ BENIGNO BARRIOS OROZCO ROSA BARRO MARIA BARRON ANDREW BASS MICHAEL BASS JAMES BATES BOYD BATTLES STUART BAUGH ELLIOTT BAYHYLLE JASON BAZAN SHANNON BECK MICHAEL BEHREND ELOY BELLO-CRUZ GUZMAN BENITEZ OFELIA BENITEZ BONNIE BENSON IDA BERMUDEZ SERGIO BESERRA LYNUS BINKLEY, III THOMAS BIRD CHERYL BIRMINGHAM MARCUS BLACK SETH BLACK VICKIE BLACK KEVIN BLACKBOROW BRIAN BLACKMON MARIA BLANCO DAVID BLEVINS JIMMY BLEVINS JUSTIN BLEVINS AARON BODOVSKY GENE BOESE JAMES BOND DEBRA BOOHER WILLIAM BOOZIER RICHARD BOREN ALEXANDER BOTELLO ANTHONY BOTELLO ROSENDO BOTELLO SHAWN BOUGH DEMETRIUS BOYD BRIAN BRADFORD KEYLON BRADLEY MYOSHIA BRADLEY CHRISTOPHER BRANTLEY RAYNOR BRENTON ARLANDO BREWER BOBBY BREWER TERRY BREWSTER SHAHANI BRITT ARLUNDA BROOKS BERNARDO BROOKS MITCHELL BROOKS DAVID BROWN JERMAINE BROWN JAMES BROWN, IV MACEO BRUMLEY CHRISTOPHER BRYANT WILLIAM BRYANT ANNA BUI KELLI BURKES BILLY BURNS MONICA BURNS SHANNON BURTCH DOUGLAS BURTRUM JOSEPH BUSH WAYNE BUSH TINA BUSH JONES ANGELICA BUSTOS AARON BUTLER JOHN BUTLER ROSA BUTLER BERRY BUZZARD DORA CADENA JESUS CADENA CLEVELAND CAGE, JR. MARGARITO CALDERON DANIELLE CALHOUN JORGE CALIXTO ELIZABETH CALVILLO LAZARO CAMA JOSE CAMAS-PADILLA DAVID CAMPBELL JASON CAMPBELL ARTHUR CANDLER YONG CANTRELL REFUGIO CARACHURE JORGE CARCAMO MARIA CARDENAS JUSTIN CARDOZA KEITH CARPENTER MODESTO CARRERA MACEDONIO CARRILLO- RUIZ VINCENT CARSON ALEJANDRO CARTAGENA JAMES CARTER LARRY CARTER, JR. GARY CASSIDAY WARREN CASTLEBERRY SOLEDAD CASTRO JOSE CASTRO ANTONIO CHABEZ, JR. JUSTO CHAGOYA GUADALUPE CHAIREZ- GALAN JOHN-MARK CHAMBERS JOSHUA CHAPMAN PATRICK CHAPMAN SERGIO CHARLES RASEAN CHARVIS CLARK CHASE JOSH CHATTILLON ADALBERTO CHAVEZ GREGORY CHAVEZ JOHN CHAVEZ DALE CHERRY DANIEL CHERRY MICHAEL CHERRY ADAN CHICAS WILLIAM CHRISTOPHER NEM CING GEORGE CLARK JOHN CLARK MORRIS CLARK RICHARD CLARK FLOYD CLEGHORN STEPHANIE CLEVELAND WILLIAM CLEVELAND STEVEN COATNEY BRENDA COATS KENNETH COCHRAN LATOYA COLEMAN RONALD COLLINS DALE CONKWRIGHT JONATHAN CONNELL GERARDO CONTRERAS MARIA COOK MARK COOK MICHAEL COOLIDGE SCOTT COON DONNA COONFIELD JAMES COOPER LISA COOPER AURELIA CORDOVA ELAINE CORKHILL ALBERTO CORONA BLANCA CORONA HERON CORONA ROBERTO CORONA EDUARDO CORTEZ ROSA CORTEZ WESLEY COVEY BILLY COX CHRISTINE COX HOPE COX JERRY COX JOHN COX PATRICK COX ADRIAN CRABTREE ELLIOTT CRAIG GREGORY CRAIGHEAD RICHARD CRAITE STEVEN CRASE DEVIN CREECH JUAN CRESPO-MAISONET MIKEL CREWS DONALD CROMWELL, JR. DARRELL CROW DRUMMOND CROWE CAROLYN CRUTCHFIELD JOSE CUADROZ VICTORY CULLOM, II ROBERT CUMMINGS JAMES CURLEY GENE CURTIS OLIVER CYRUS, III BOGDAN CZEMIAWSKI GWENDOLYN DANIELS JOHN DANIELS WILLIAM DAUGHERTY JENIFUR DAVIDSON ANGELA DAVIS BYRON DAVIS CAROLYN DAVIS CATHY DAVIS DAVE DAVIS ERIC DAVIS JERRY DAVIS JORDAN DAVIS LASHONDA DAVIS MARCUS DAVIS MARLEITTA DAVIS RICHARD DAVIS SAMUEL DAVIS TARA DAVIS TYMESIA DAVIS JAMES DAVIS, III SIDNEY DAVIS, JR. WILFREDO DE JESUS OTILIA DE JONES MATILDE DE LA TORRE ALVARO DE LEON MENDOZA BOBBY DEGRAFFENREID MAGALI DEJESUS ISMAEL DELAPAZ EVA DELATORRE LUCERO DELEON MENDOZA ALBERTO DELEON- CASTILLO JUANA DELOBO ANDRES DELOS SANTOS RAQUEL DELUNA RODRIGO DELUNA SUSANNA DENNIS JATINDER DEOL SURJIT DEOL BRUCE DERR AUDENCIA DEVILLA ROY DEVILLE CHARLES DEWEESE CHEIKH DIALLO CLAUDRAUS DICKENS CARL DIKA CIN DING HOMER DODD RICKEY DODSON EDREYS DOMINGUEZ MARTIN DOMINGUEZ PABLO DOMINGUEZ JENNIFER DOSSMAN JODI DOTY HAROLD DOUGLAS MICHAEL DRAEGER MICHAEL DREW CATHRYN DUBBS JERROLD DUBBS BRIAN DUCKETT CAROLYN DUESLER CRAIG DUKE LINDA DUNEC BUDDY DUNN CHRISTOPHER DUNN CORTNEY DUNN JASON DUNPHY FRANCISCO DURAN TORRES RALPH DURBIN YOLANDA DURHAM JAMES DUROY RANDY DWIGGINS WENDELL EASILEY DAVID ECHEVARIA STEPHEN EDMONDS MARK EDWARDS EARL ELLIOTT HARVEY ELLIS TINISHA ENGLISH EVA ENRIQUEZ BELMONDO EPPS BLANCA ESCOBAR TERESA ESCOBEDO NORBERTO ESPARZA- TORRES LEONARDO ESPINOZA FLORES GUSTAVO ESPITIA JESUS ESTRADA- GONZALEZ GILDA ETUMUDOR CALVIN EUBANKS GREGORY EUBANKS OTIS EVANS REGINALD EVERIDGE, JR. SHAWN FAIRLEY JOSE FELIX-GALVAN ROBERT FERGUS ELIZABETH FERGUSON CATALINA FERNANDEZ DAVID FERNANDEZ FABIOLA FERNANDEZ SAMUEL FIELDS JESSE FIGUEROA STERLYN FINCH BRUCE FISHER JASON FISHER ANTHONY FIZER WAYNE FLASKA COPOTENIA FLETCHER, JR. ANA FLORES CAROLINA FLORES EFIGENIA FLORES JUANA FLORES LAURA FLORES RUBY FLOYD VICKY FLOYD MARK FLY HECTOR FONTANEZ- ZAYAS KENNETH FONTENOT SHARON FONTENOT SHEILA FORREST JAMES FORTIN CHRISTOPHER FOSTER FREDERICK FOSTER LETRELL FOSTER LORETTA FOWLKES KENNETH FOYIL PHILLIP FRANK WARREN FRANKLIN REVONDA FRANKS GARY FREDERIKSEN, JR. GREGORY FREEMAN OLGA FRENCH ANGEL FRIAS WADE FULLER ANGELIA FULTON CREWS RONY GADIWALLA RANULFO GALICIA MALISSA GALINDO MARIA GALINDO JOHN GALL MA GALVAN MARIA GALVAN ANGEL GARCIA MAXIMO GARCIA NICKLAUS GARCIA ROBERTO GARCIA MARIA GARCIA GARCIA GLITER GARCIA LOPEZ JOEL GARCIA MALDONADO ISIDRO GARCIA MARTINEZ NORMA GARIBAY PATRICK GARRETT, SR. CARLOS GARZA RALPH GASAWAY STEVE GEARY JAMES GEORGE AMRIK GILL WILBERT GILMORE EDWARD GITONGA PENNY GLOSSINGER GARY GOFF EMMETT GOINS HECTOR GOMEZ JOSE GOMEZ MARIA GOMEZ MOISES GOMEZ JOSE GOMEZ-MORENO DANIEL GOMEZ-SIGALA CHRISTOPHER GONZALES ADRIAN GONZALEZ IMELDA GONZALEZ MANUEL GONZALEZ MARTIN GONZALEZ NAYELI GONZALEZ VICTOR GONZALEZ BARRY GOODSON STANLEY GORDON DALE GRAHAM BUENAS GRANADOS CARLA GRAVES ZAINAB GRAVES MARIA GRAY JESSE GREEN, JR. JOHN GRIFFIN RONALD GRIMES DANIEL GROFF CAROLINA GUILLEN CASSIE GUNN REMIA GUTHERY ISAAC GUTIERREZ MARIA GUTIERREZ EVELYN GUTIERREZ LAINEZ ERASMO GUZMAN GEORGINA GUZMAN NANCY HACKNEY ALLEN HADDOCK JACK HALL KELLY HALL STEPHEN HALL LESLIE HALL, JR. RITA HALLER RAYMOND HAMBLEN SCOTT HAMILTON JEFFREY HAMMER SAM HAMMOUD ROBERT HANNA DONALD HARDEN MARQUIS HARLIN GLEN HARRIS JERRY HARRIS KENNY HARRIS STACEY HARRIS ROBI HARTMANN HEATHER HASKINS DONALD HATLEY KENNETH HAVARD JEREMY HAWKE CARL HAWKINS KEVIN HAWKINS BILLY HAWLEY, JR. BRANDON HAYNES THEODORE HEATH TIM HEFFLIN STEPHEN HEGVOLD DANIEL HENDERSON DEMETRIUS HENDERSON MIKE HENSLEY ALVARO HERNANDEZ ARMANDO HERNANDEZ CORCINA HERNANDEZ FRANCISCO D. HERNANDEZ FRANCISCO O. HERNANDEZ JOSE HERNANDEZ LILY HERNANDEZ LUIS HERNANDEZ MARIA HERNANDEZ MARIANO HERNANDEZ DONALD HICKMAN DANNY HIDALGO TAKEO HIGA BRENDA HIGGINS LARRY HIGHFIELD BRIAN HIGHT DEWAYNE HIGHTOWER JUAN HINOJOSA TYSON HINTHER CLYDE HITCHYE BON HOANG SAMUEL HOBSON SANDRA HOFFMAN JARROD HOGGATT BRYAN HOLLAND JAMES HOLLINGSWORTH DONNA HOLLOWAY LAWRENCE HONEL STEPHEN HOOVER TERRI HORN WILBURN HORNER, JR. DANIEL HORRELL STANLEY HORTON JERRY HOUSTON DAVID HOWARD LARRY HOWARD ZAM HTANG CLARENCE HUBBELL LYDIA HUDSON PHILIP HUDSON ANTHONY HUFFMAN BILLY HUGHART JIMMY HUGHES ROSARIO HUIZAR RONALD HUTCHCRAFT GARY HUTCHINS TAN HUYNH OKECHUKWU IBEH ALEXANDER IGNATENKOV SAMUEL INGRAM ANTHONY INKTON TIM IRWIN MELHAM JABR BELINDA JACKSON JEFF JACKSON LARRY JACKSON MAVIS JACKSON, JR. DELLA JACOBS DANNY JACOT ALMA JACQUEZ JOSE JAMAICA MCKINLEY JAMES FRANCES JARAMILLO DONNA JENKINS JASON JEWELL GENELLE JIMBOY MARIA JIMENEZ RAUL JIMENEZ VINCENT JIMENEZ FERNANDO JIMENEZ RIVERA JUAN JIMENEZ, JR. PEDRO JIMENEZ-DELFIN FREDERICK JIMMERSON KAREN JOBE ED JOHNSON REX JOHNSON SYLVIA JOHNSON THURLIN JOHNSON, II PETE JOHNSON, JR. ANTONIO JONES DANNY JONES DAVID JONES DETERRIOUS JONES DJUAN JONES KELLI JONES ROSE JONES JAMES JONES, JR. JASON JORDAN JAIME JUAREZ LEANDRO JUMELLES NUNEZ PATRICK KAISER ALEX KAP NGIN KAP BRIAN KASTL RICHARD KEATON AARON KELLY DANIEL KEMP GREGG KENNEDY DO KHAI EN KHAI LANG KHAI MANG KHAI NANG K. KHAI NANG Z. KHAI PETER KHAI GO KHAM NGUN KHAM PAVEL KHARABORA KIRK KHILLINGS DAI KHUP NGIN KHUP THANG KHUP RENA KIGHT ALAN KILGORE ANDREW KILGORE SUAN KIM THANG KIM MICHAEL KIMMONS DAVID KING JOSEPH KING LORI KING RANDY KING RUSSELL KING STEPHEN KINSEY BRYAN KIRK LARRY KIRKLAND ALEKSANDR KIRYUKHIN FEDIR KLYUCHNYK DAVID KNEBEL ROBERT KNUTH ANATOLI KONOVALCHUK JOHN KOSKINEN JAMES KOSS EDWARD KRACKE, II ROBERT KRAFJACK MIKHAIL KRUPENYA KARL KUENEMANN LAURA KYLE MIKE LAFOND RENATO LALATA GEORGE LAM COLE LAMBERT JEFFERY LANDRUM DEBORAH LANE DONALD LANEY UGIN LANG MARTIN LARSEN MICHAEL LAVALLEE ROGER LAVIGNE DAVID LAWSON JEFFREY LAWSON RONALD LAWSON MICHEL LEBEL JOSE LEBRON JACQUELINE LEE RHONDA LEE MATTHEW LEEPER PATRICIA LENNOX HUGO LERMA RONALD LESTER DAVID LIAN HAU LIAN KAM LIAN SING LIAN THANG LIAN PING LIN JERRY LINCOLN THOMAS LINCOLN WILLIAM LINDSAY ANTHONY LITTLE RENE LIVESEY JOEL LOCKMILLER FRANKLIN LOGAN, JR. DUSTIN LONG LISA LONG LINDA LONGORIA ALONZO LOPEZ ANA LOPEZ ARTURO LOPEZ GABRIEL LOPEZ MARGARITO LOPEZ RAFAEL LOPEZ RAUL LOPEZ THOMAS LOPEZ MA DE LOPEZ CUEVA JOHNNY LOPEZ, JR. JOSE LOPEZ-FACIO VINCENT LOWE PAUL LOWERY OSCAR LOZANO JARRAD LUDLOW QUANNAH LUDLOW ANA LULE MARIANA LUNA KELLY LYBARGER GREGORY MACK JORGE MADRIGAL ALEJANDRO MAGANA MONICA MAGANA SYED MAHMOOD N MAI BARBARA MALONE CARLOS MALONE JEFFREY MALY LANG MANG LIAN MANG NGIN MANG SEI KHO LUN MANG VUNG MANG ERIC MANN EVELYN MANNING ADAM MANSFIELD RAUL MANZO GEORGINA MANZO DE BARRERA RODOLFO MARCIAS FLORES WILLIAM MARKWARDT MA MARQUEZ DE- GILBREATH MARGARITO MARQUINA- GONZALEZ TRAVIS MARR ANA MARROQUIN ECO MARSHALL ROYAL MARSHALL, JR. AMANDA MARTINEZ ANGEL MARTINEZ JAVIER MARTINEZ JERRY MARTINEZ JUAN MARTINEZ KAREN MARTINEZ OBDULIA MARTINEZ KENNEPH MARTINEZ BAEZ FRANCISCO MARTINEZ LEON HECTOR MARTINEZ MOLINA FLORENTINO MARTIN- ROMO TIMOTHY MARVIN THOMAS MASENGALE, JR. BEVERLEY MASON JAMES MASON ERIK MASSEY CHARLES MATTOCKS, IV EVERARDO MATUL RON MAUCH ANTONIO MAURICIO LEONARD MAXWELL LANCE MAYBERRY DUANE MAYFIELD JACQUELINE MAYFIELD TERRELL MAYFIELD DANNY MAZALICA VLADO MAZILICA COURTNEY McAFEE DEBORAH McATEER TINA McBEATH ROBERT McBOWMAN CHRISTOPHER J. McCLAIN CHRISTOPHER K. McCLAIN DIRK McCLELLAN ROY McCONNELL DEBRA McCOWAN WESLEY McCOWAN, JR. PAULA McCRARY SHAWN McCRARY MARC McCUIN ROBERT McCULLEY KATHY McCULLOCH FLORENCE McDANIEL LOYD McDANIEL ROSE McDANIEL SHARON McDANIEL JAMES McELROY DEBORAH McFARLIN DAPHNE McGEE TERRY McGEE, II JARROD McKISICK DOMINGO McKNIGHT GINA MEANS PATRICIA MEDINA SERGIO MEDINA JAMES MELDA KEVIN MENDENHALL JESUS MENDOZA JOSE MENDOZA VERNON MERCEAL, JR. JOHNNY MERRELL VIVIAN MEYER RONALD MIKEL GLENN MILAM MICHAEL MILES RANULFA MILIAN CHRIS MILLER MYKEA MILLER DUANE MILLS MICHAEL MILTON BRIAN MINGLE BRUCE MINTON SCARLETT MIRANDA HUBERT MITCHELL JAY MODISETTE RONALD MODLIN IRMA MOGUEL BRAULIO MOISES-LEE STAN MOLDUCH JOSE MOLINA STEVEN MOLSTER JOSE MONREAL MARIA MONSIVAIS ENOC MONTES CLAY MOO JON MOODY KEVIN MOORE MARC MOORE MARIA MOORE TONY MOORE ISRAEL MORA JUAN MORA ALFONSO MORAN RON MOREHEAD TONY MOREHEAD BERTA MORENO AMBER MORGAN MATTHEW MORGAN DAVID MORGERSON MARCUS MORROW CLAYTON MOTE DARRELL MOTE ISSA MOUID DO MUANG ROBERT MUIRHEAD THERESA MUISE ERIC MULLINIKS GIN MUNG KAI MUNG LANG MUNG NANG MUNG SIAN MUNG SUAAN MUNG SUAN MUNG TUAL MUNG VUM MUNG JESUS MUNOZ EDUARDO MURILLO JOHNNY MUSGRAVE JUNE MUSGRAVE DAVID MYERS ASAD NAKHAEI SING NANG MARCUS NARANJO VINCENT NASH GO NAULAK JOSE NAVA MARIA NAVA ABEL NAVEJAS CLAYTON NEAL SAMUEL NEALE ANTHONY NEGRETE NATALIE NEILSON KATHLEEN NELSON NATHANIEL NELSON RONALD NELSON HOANG-CHI NGUYEN TIEN NGUYEN KAREN NILES-BLAYER HANK NOESKE JERRY NOLAN CHRISTOPHER NORFLEET WILLIE NORFLEET ROBERT NORFLEET, JR. ERIC NORRIS DEBRA NOTHNAGEL STEVE NOVAK KANG NU JOHN NUTT DEANGELO OAKLEY MICHAEL O’BRIEN ALEXANDER OFOSU JOHN OGLE RUBEN OLAN GARCIA MARIA OLIVAS DE TORRES SCOTTY OLIVER ANTHONY OLIVERAS ERIC OLSON JAMES O’NEILL, JR. JAMES O’NEILL, SR. LUIS OQUENDO ALBERTO LETICIA ORONA MARGARITA ORONA MARGARITA OROZCO DEHUIZAR CARLOS OROZCO- TORRES JULIO ORTEGA, JR. ROSA ORTIZ MAIZONET SANDRA OSBERN KATIE OSBORNE IDOWU OSIFESO JENNIFER OVERMEYER JUAN OYOLA MARTIN OZURA- CARRILLO GUILLERMO PACHECO LUIS PACHECO EDMUNDO PAIZ AIXA PALACIOS J PANIAGUA NOEMI PANIAGUA BELMONTE JARED PARKER JOSE PARRA JEANETTA PATE CORRY PATTERSON CIA PAU LIANG PAU THANG PAU VADEN PAULSEN TRAVIS PEARSON ANTONIO PEDIGO KIMBERLY PEEKS CHRIS PENCZAK VLADIMIR PENIAZ SHAMATA PENTECOST SERGIO PERALTA CESAR PEREZ JUANA PEREZ JUSTINA PEREZ SERGIO PEREZ MA LOURDES PEREZ JOSEPH PERKINS JOHN PETERS LADRUE PETERS EMIL PETROV DANIEL PEURIFOY SONG PHAN RANDY PHELPS NICHOLAS PHIFER LOUIS PHILLIPS CIN PI THANG K. PIANG THANG L. PIANG ALEXIA PIERSON PEDRO PINA-VALLES JOSE PINEDA WALTER PINTO JAMES PIPPIN CLIFFORD PITCHFORD MARIA PLATA BASANT POKHREL RENU POKHREL VELMA POLLEY MARK POOL TIMOTHY POOL ANDREW POSAS ARDESHIR POURARYAN PHILLIP POWELL RUDY POWELL GREG POWERS JEFFERY POWERS JOSE PRADO-HUERTA TONY PRATT ALMA PUGA VAN GIOAN QUANG JAVIER QUEZADA JESUS QUINONES SAHIR RAFAH COLD RAIN NIMALAKIRTHI RAJASINGHE FERDINAN RALAT ANTONIA RAMIREZ JOSE RAMIREZ RAYMON RAMIREZ WILLIAM RAMIREZ NANDY RAMIREZ B JERRY RAMSEY ROBERT RATLIFF KYLE RATZLAFF TERRY RATZLOFF ROBERT RAYNO THOMAS READ SANDRA READER JOSEPH REAGH DIEGO REBOLLAR JOSE RECIO-GOMES PEGGY REDDEN JAMES REED FREEMAN REED, JR. CYNTHIA REESE MARGARET REEVES DARREN REISS EVERETT REITZ JACKIE REMY ALBERTO RENDON DAVID RENEAU ISAGANI REQUINTINA HEATHER REYNOLDS THOMAS REYNOLDS DAVID RIBBE ANGELA RIDEOUT BRETT RIEGEL DELMECIO RISER JOY RISER STEPHEN RISER FRANKLIN RISNER JAMES RITCHIE CARLOS RIVERA GENOVEVA RIVERA LUIS RIVERA MENDOZA LAURA ROBERSON PAUL ROBERTS JOHN ROBERTS JUSTIN ROBERTS BENTON ROBINSON MICHAEL ROBINSON NICKY ROBINSON JEFFERY ROBISON ANTHONY RODERMUND VOLODYMYR RODOVNSKY ALEX RODRIGUEZ DIANA RODRIGUEZ EDGAR RODRIGUEZ GILBERTO RODRIGUEZ HECTOR RODRIGUEZ IDA RODRIGUEZ MARIA RODRIGUEZ MELVIN RODRIGUEZ RIVELINO RODRIGUEZ TERESA RODRIGUEZ URIEL RODRIGUEZ J RODRIGUEZ-FLORES DON ROGERS LIDIA ROJAS NELSON ROJAS CAROLINA ROJAS- GONZALEZ TERRY ROMBACH RICHARD ROMO DELINA ROSS DMITRI RUDNITSKI RICARDO RUIZ VICENTE RUIZ AVA RUSSELL JIMMY RUSSELL NARINDER SAHOTA ADAN SALAZAR FRED SALAZAR NORA SALAZAR WALTER SALAZAR DAVID SALDIVAR JOSE SALDIVAR MIGUEL SALDIVAR VICTOR SALDIVAR DIANA SALINAS BEATRIZ SANCHEZ BETTY SANCHEZ DELVIN SANCHEZ ESTEVAN SANCHEZ SERAFIN SANCHEZ ESPERANZA SANCHEZ RUIZ FELIPE SANCHEZ, JR. LUIS SANCHEZ-LOPEZ EDWIN SANCHEZ- MONTEZ IVELISSE SANCHEZ- RIVERA ALICIA SANDERS CHRISTINA SANDERS SCOTT SANDERS TANISHA SANDERS DAVINDERPAL SANDHU HARNEK SANDHU MICHAEL SANDOR, JR. JASON SANFORD THANG SANG ADRIAN SANTACRUZ AGUSTIN SANTANA REINALDO SANTANA HECTOR SANTIAGO MIGUEL SANTIAGO WENCESLAO SANTIAGO CARLOS SANTIAGO TORREZ HUMBERTO SANTILLAN IGNACIO SANTILLAN PEDRO SANTILLAN ANGELA SANTILLANO DAVID SAPICO BENNETT SAPP DAVID SARANT RICHARD SATTERFIELD ERICK SAWYER WILLIAM SCHAROSCH BRUMMETT SCOTT COREY SCOTT KENNETH SCOTT VIVIAN SCROGGINS MARCUS SEIP HUGHGO SEWELL CARROL SHACKELFORD VANESSA SHARP GREGORY SHAW ONTARIO SHAW THOMAS SHAW KATHY SHEFFIELD KATHLEEN SHEPARD JACKIE SHEPHARD BARBARA SHIPMAN CONSUELA SHORE RASCHID SHOWOLE NELSON SIERRA OSCAR SIERRA- MATAMOROS TABATHA SIKES VIENCHA SIMMALAVONG CORY SIMMONS MITCHELL SIMMONS, JR. PATRICK SIMPSON JAMES SIMPSON, II KAP SING THANG SING KULWINDER SINGH RUSSELL SINGLETON MICHAEL SKINNER LARRY SLONE BRETT SMITH CORDARION SMITH RENALDO SMITH RICARDO SMITH RYAN SMITH SWEETIE SMITH MICHAEL SMOLINIEC JOSE SOLARES MALCOLM SOLES IRASEMA SOLIS MARIA SOLIS NEMISIA SOLIS PAULA SOSA KEVIN SOUVANNASING RONNIE SPARKS ELDA SPEARS SUSAN SPENCER MICHAEL SPORTEL RICHARD SPROWLES JESS ST GEORGE LAWANA STANE LEKITHA STEPHENSON STEPHEN STEPP MICKEAL STEVENSON BRENT STOCKTON ADAM STOKER DEBRA STRASBOURG MICHAEL STRAUB BILLY STRENGTH ERIC SUAREZ MICHAEL SULLENS NANG SUM ROSA SUMMERS STANLEY SWAIM GARY SWARER SHBRONE SWYGERT MARCUS SYAS ERIC SYPERT JAMES TABER PEDRO TALAVERA BRIAN TALLEY WILLIAM TANKERSLEY JOE TART LARRY TATE TENNA TATUM CHARLES TAYLOR ERIC TAYLOR FLESHIA TAYLOR JEFF TAYLOR THOMAS TAYLOR ANDREA TEAKELL KEVIN TEAKELL ROBERT TEIS CIN THANG KAM THANG KHAM THANG SUAN THANG TUAN L. THANG TUAN S.THANG ZAM THANG LANG THAWNG ZAM THAWNG LEE THOMAS CHARLES THOMASON DAVID THOMPSON WESLEY THURMOND, II GABRIELA TIRADO WILLIAM TOBAR CHRISTOPHER TOLES MOLLY TOMPKINS BRENY TORNES REINALDO TORRES CARLOS TORRES ARCE CARMEN TORRES DE GUZMAN GIRALDO TORRES- CHAVES CREMERIS TOWNS HAI TRAN PHUOC TRAN UT TRAN MARISOL TREJO MARTIN TREVINO- SALDANA MARK TRIBBLE HA TRINH SUUM TUANG THANG TUANG JOSEPH TUBBS THAWNG TUNG PAUL TURBE PHYLLIS TYISKA JAMES TYLER JAMES TYO JESUS TZUL PERNELL UNDERWOOD NNAMDI URIM MARIA URQUIZA YADIRA URQUIZA RAQUEL VALDEZ ALLEN VANG SHANNON VANN JOHN VANNESS JOEL VANSCOY, JR. JAVIER VARGAS JOSE VEGA ANTONIO VELASCO ROMAN VELASQUEZ JAMES VELDE JOSE VELEZ GONZALEZ JOVANE VENCES JUAN VENCES ANGEL VENEGAS SALOME VERA LAURA VERGARA JAMES VERHAMME GEORGE VERRETT TERESA VICTORY EFRAIN VILLA SELINA VIRAMONTES CUONG VO SUONG VO TONG VO NING VUNG STEPHEN WAKEFIELD DIANA WALKER JERMAINE WALKER JOSHUA WALKER RODERICK WALKER THEODORE WALKER GENE WALKER, JR. DAVID WALKUP PHILLIP WALLACE REBECCA WALLACE LESLIE WALLIS, JR. MERLYN WALTERS STACEY WALTERS YAN WANG GAYLE WARD BILLY WARDEN, II PERRY WARNER ANTOWYN WARREN DONALD WASHINGTON SAM WASHINGTON VIELKA WASHINGTON JAMES WATLEY, JR. DEMETRIA WEBB ANTHONY WELCH DERRICK WELLESLEY DELORENCE WELLS SUSAN WERNER SHARON WEST KASEY WHEELER DEBORAH WHITAKER HARVEY WHITAKER DAVID WHITE JAMES WHITE JUSTIN WHITE TIMOTHY WHITE DAVID WHITLOCK TIMOTHY WHITTEN STEVEN WHORTON BILLY WILBURN SHAWN WILDE CHRISTOPHER WILES JACKIE WILES JERRY WILES SHERRI WILKINS JAMES WILKINSON BRYANT WILLIAMS DONNA WILLIAMS DOUGLAS WILLIAMS ROBERT WILLIAMS VANDOIL WILLIAMS JAMES WILLIAMSON JARVORIS WILLIS BRANDI WILSON DANIEL WILSON JAMES WILSON RICHARD WILSON WILLIAM WILSON THOMAS WIND THOMAS WINGO WANDA WINKFIELD WHITNEY WINN MICAH WISDOM EDWARD WOFFORD JUSTIN WOLF CURTIS WOOD MITCHELL WOOD GREGORY WOODFORK DIXIE WRIGHT JIM WYRICK LINDA WYRICK ECTOR YANCEY, JR. KATHRYN YOUNG PATRICIA YOUNG DINAH YOUNGBLOOD JOSH YOUNGS NIKOLAY ZAGORODNIY LANG ZAH LANG AURORA ZAVALETA MERCEDES ZAVALETA LUIS ZEPEDA JUAN ZERMENO VIRGINIA ZERMENO 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 AAON Canada Inc. 279 Sumach Drive • Burlington, Ontario Canada L7R3X5 905.631.9161 • Fax: 905.631.5753 aaon.com 

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