0000033213-97-000010 424B3 1 19970501 NYSE PHLX EQUITABLE RESOURCES INC /PA/ 0000033213 4923 250464690 PA 1231 424B3 33 333-20323 97592911 420 BLVD OF THE ALLIES PITTSBURGH PA 15219 4122613000 420 BOULEVARD OF THE ALLIES PITTSBURGH PA 15219 EQUITABLE GAS CO 19841120 424B3 1 000003321397000010-001-seq1-424b3.txt PROSPECTUS REGARDING FILE NO. 333-20323