ORYX DELAWARE OIL TRANSPORT LLC

Incident Narrative

ON NOVEMBER 2ND, 2019 A 3RD PARTY PERSONNEL CONTACTED THE ORYX MIDSTREAM CONTROL ROOM TO REPORT A LEAKING VALVE. CONTROL ROOM IMMEDIATELY CONTACTED THE LOCAL ORYX MIDSTREAM OPERATOR AT 9:36AM (MT). ORYX OPERATOR INSTRUCTED THE CONTROL ROOM TO SHUT DOWN ALL LACT UNITS ON THE SYSTEM UNTIL INVESTIGATION WAS COMPLETE. ORYX OPERATOR ARRIVED ON SITE AT 10:20AM AND CONFIRMED THAT THE LEAK WAS AN ORYX MIDSTREAM PIPELINE. ORYX OPERATOR FOUND THAT A 2"" BALL VALVE AT THE BOTTOM OF THE PIG LAUNCHER HAD SPLIT. THE WEATHER TEMPERATURE DURING THE NIGHT OF NOVEMBER 2ND DROPPED FROM 42*F TO 31*F WITH 8 MPH WIND FROM 12AM TO 6AM. THE TEMPERATURE RAPIDLY INCREASED FROM 31*F TO 45*F WITH 7 MPH TO 0 MPH WIND FROM 6AM TO 9AM. THE ROOT CAUSE OF THE INCIDENT WAS THAT THE WATER WITHIN THE OIL DROPPED OUT AT THE LOW POINT DRAIN OF THE PIG LAUNCHER. THE VALVE HAD FROZE DUE TO THE WATER CONTENT SOMEWHERE BETWEEN 12AM AND 6AM THAT MORNING. BETWEEN 6AM AND 8AM THE VALVE BEGAN TO DEFROST, RELEASING THE CRUDE OIL FROM PRIMARY CONTAINMENT. THE LOW POINT DRAIN VALVE HAS BEEN REMOVED AND REPLACED WITH A 2"" PLUG. PIPELINE WAS RESTARTED AT 11:18AM (MT).