SECURITIES AND EXCHANGE COMMISSION

                                Washington, D.C.



                                    FORM 8-K

                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


         Date of Report (Date of earliest event reported): July 30, 2005



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


           Nevada                       0-18953                  87-0448736
           ------                       -------                  ----------
(State or other jurisdiction          (Commission              (IRS Employer
      of incorporation)               File Number)           Identification No.)

                     2425 South Yukon, Tulsa, Oklahoma 74107
                     ---------------------------------------
                    (Address of principal executive offices)


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




Item 2.02.     Results of Operations and Financial Condition.

                    On August 2, 2005,  Registrant issued a press release on its
               results of operations  and financial  condition for the three and
               six month periods ended and at June 30, 2005.

Item 8.01.     Other Events.

                    Registrant  executed  a First  Amendment  to Third  Restated
               Revolving Credit Loan Agreement on July 30, 2005.

Item 9.01      Financial Statements and Exhibits.

                    (c)   A copy of the press release is filed herewith as
                    Exhibit 99.1.

                          A copy of the Third Restated Revolving Credit Loan
                    Agreement is filed herewith as Exhibit 99.2.



                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                   AAON, INC.



Date:  August 3, 2005              By:  /s/ John B. Johnson, Jr.
                                       ---------------------------------------
                                            John B. Johnson, Jr., Secretary

                                      (2)