CRESTWOOD MIDSTREAM PARTNERS LP

Incident Narrative

"ON 06/06/25 AT APPROXIMATELY 17:35, AN OPERATOR EMPLOYEE DISCOVERED A SMALL FIRE ON PUMP C3 IN THE PUMP ROOM. THE FIRE WAS IMMEDIATELY EXTINGUISHED WITH A FIRE EXTINGUISHER. OPERATIONS DISCOVERED CRUDE OIL LEAKING FROM A SEAL ON THE 8INCH 100 LINE INSIDE ARROW CENTRAL DELIVERY POINT (CDP). APPROXIMATELY 1 GALLON OF CRUDE OIL WAS RELEASED. A SMALL AMOUNT OF PRODUCT WAS CONSUMED BY THE FIRE. THE REMAINING PRODUCT WAS CLEANED-UP BY LOCAL PERSONNEL. THE PUMP WAS REMOVED AND FLANGES BLINDED. THE PUMP HAS BEEN SENT TO A THIRD PARTY FOR ANALYSIS, INSPECTION AND REPAIR. THE LINE WAS RESTARTED ON 06/07/25 AT 07:50. THE CAUSE OF THE ACCIDENT IS STILL UNDER INVESTIGATION BY A THIRD PARTY. A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE INVESTIGATION IS COMPLETE. SUPPLEMENTAL & FINAL: THE INVESTIGATION DETERMINED THE CAUSE OF THE LEAK WAS DUE TO A PUMP-RELATED EQUIPMENT FAILURE. LOW SUCTION CAUSED INCREASED VIBRATION AND CAVITATION LEADING TO THE SEAL COLLAR TO FAIL AND RELEASE CRUDE OIL. THE PUMP SHAFT NUT WAS BEING HELD ON BY THE SEAL COLLAR AND BEGAN TO BACK OFF AFTER THE FAILURE. THE SHAFT NUT BEGAN TO ROTATE AGAINST THE BEARING HOUSING CREATING ENOUGH HEAT TO IGNITE THE PRODUCT. TO PREVENT RECURRENCE THE PUMP WAS REMOVED, FLANGES BLINDED AND OPERATIONS ROUTED TO OTHER PUMPS."