<SEC-DOCUMENT>0000824142-20-000080-index.html : 20200429
<SEC-HEADER>0000824142-20-000080.hdr.sgml : 20200429
<ACCEPTANCE-DATETIME>20200429102316
ACCESSION NUMBER:		0000824142-20-000080
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200429
DATE AS OF CHANGE:		20200429
EFFECTIVENESS DATE:		20200429

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18953
		FILM NUMBER:		20828042

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

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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AAON INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DIAMOND HEAD RESOURCES INC
		DATE OF NAME CHANGE:	19900808
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>aaon2020proxyadditional.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: aaon2020proxyadditional.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image1.jpg
<TEXT>
Document 2 - file: image1.jpg

</DOCUMENT>
</SEC-DOCUMENT>