THIS CASE INVOLVES THE RUPTURING OF A PIPELINE OWNED AND OPERATED BY SINCLAIR AND CARRYING SWEET CRUDE OIL. THE RUPTURE OCCURRED ON PRIVATE PROPERTY 4 MILES WEST OF MILLS, WY. THE RUPTURE, SINCLAIR IS QUOTED AS SAYING, WAS CAUSED BY A DEFECT IN THE PIPELINE. THE DISCHARGE OCCURRED AT 4:02 P.M. AND SINCLAIR CLAIMS THAT IT'S EMERGENCY RESPONSE PERSONNEL ARRIVED AT APPROXI- MATELY 4:15P.M. THE SPILL WAS ESTIMATED AT 1500 BARRELS.