0001026608-02-000012 10-Q 1 20020331 20020510 AAON INC 0000824142 3585 870448736 NV 1231 10-Q 34 000-18953 02641375 2425 SOUTH YUKON TULSA OK 74107 9185832266 2425 SOUTH YUKON TULSA OK 74107 DIAMOND HEAD RESOURCES INC 19900808 10-Q 1 aaon_10q302.txt FORM 10-Q FOR THE PERIOD ENDED 3/31/2002