0000033213-97-000007 S-3/A 1 19970326 NYSE PHLX EQUITABLE RESOURCES INC /PA/ 0000033213 4923 250464690 PA 1231 S-3/A 33 333-20323 97563079 420 BLVD OF THE ALLIES PITTSBURGH PA 15219 4122613000 420 BOULEVARD OF THE ALLIES PITTSBURGH PA 15219 EQUITABLE GAS CO 19841120 S-3/A 1 000003321397000007-001-seq1-s-3-a.txt PRE-EFFECTIVE AMENDMENT NO 1