0000950129-04-005306 8-K 3 20040726 12 7 20040730 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 8-K 34 001-13831 04940090 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 8-K 1 h17113e8vk.htm QUANTA SERVICES, INC. - DATED JULY 26, 2004 EX-99.1 2 h17113exv99w1.htm TRANSCRIPT OF REVISED EARNINGS RELEASE GRAPHIC 3 h17113h1711300.gif GRAPHIC