0000950134-99-003163 8-K 2 19990422 5 7 19990422 ONEOK INC /NEW/ 0001039684 4923 731520922 OK 1231 8-K 34 001-13643 99598785 100 WEST 5TH ST TULSA OK 74103 9185887000 100 WEST 5TH ST TULSA OK 74103 WAI INC 19970519 8-K 1 000095013499003163-001-seq1-8-k.txt FORM 8-K EX-99.A 2 000095013499003163-002-seq2-ex-99-a.txt PRESS RELEASE ISSUED BY ONEOK, INC. - 4/20/99