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    ACCESSION NUMBER:		0000824142-18-000036
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		85
    CONFORMED PERIOD OF REPORT:	20171231
    FILED AS OF DATE:		20180403
    DATE AS OF CHANGE:		20180402
    EFFECTIVENESS DATE:		20180403

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AAON INC
    		CENTRAL INDEX KEY:			0000824142
    		STANDARD INDUSTRIAL CLASSIFICATION:	AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
    		IRS NUMBER:				870448736
    		STATE OF INCORPORATION:			NV
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-18953
    		FILM NUMBER:		18730771

    	BUSINESS ADDRESS:
    		STREET 1:		2425 SOUTH YUKON
    		CITY:			TULSA
    		STATE:			OK
    		ZIP:			74107
    		BUSINESS PHONE:		9185832266

    	MAIL ADDRESS:
    		STREET 1:		2425 SOUTH YUKON
    		CITY:			TULSA
    		STATE:			OK
    		ZIP:			74107

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	DIAMOND HEAD RESOURCES INC
    		DATE OF NAME CHANGE:	19900808
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