MEDALLION OPERATING COMPANY, LLC

Incident Narrative

ON MONDAY, JANUARY 2, 2023, AT APPROXIMATELY 09:00, DURING A ROUTINE CAMERA CHECK, THE CONTROLLER SAW WHAT APPEARED TO BE OIL ON THE OVERHEAD CABLE TRAY ABOVE PUMP 10510. THE CONTROLLER DID NOT SEE AN ACTIVE LEAK WHICH LED HIM TO LOOK BACK AT THE PREVIOUS DAYS FOR THE START OF THE POTENTIAL LEAK. THE CONTROLLER SAW THE OIL ON THE OVERHEAD CABLE TRAY APPEAR ON THE CAMERA ON SATURDAY, DECEMBER 30, 2022, AT APPROXIMATELY 10:30. THE CONTROLLER THEN SHUT DOWN PUMPS 10510 AND 10520 AND ISOLATED THEM BY CLOSING THE SUCTION AND DISCHARGE VALVES WHILE REVIEWING THE VIDEO FURTHER. THE CONTROLLER WAS NOT ABLE TO IDENTIFY ANY LEAKS. THE CONTROLLER CONFIRMED THAT NEITHER PUMP WAS NEEDED FOR CURRENT OPERATIONS AND CONTINUED OPERATING THE STATION WITH OTHER STATION PUMPS. THE OPERATOR CONTINUED MONITORING THE CAMERA FOR SIGNS OF A LEAK BEFORE DETERMINING THAT THERE WAS NO ACTIVE OR VISIBLE LEAK, AND NO FURTHER ACTION WAS REQUIRED. ON TUESDAY, JANUARY 3, 2023, THE CONTROLLER REVIEWED CONTROL ROOM ACTIVITIES OVER THE HOLIDAY WEEKEND WITH THE CONTROL ROOM SUPERVISOR AND THEY THEN DISPATCHED A MEDALLION MECHANIC TO THE STATION. AT APPROXIMATELY 11:23, THE MECHANIC DISCOVERED OIL INSIDE THE PUMP 10510 SKID CONTAINMENT AT MARTIN STATION BUT OBSERVED NO ACTIVE LEAK. AFTER A SITE INVESTIGATION, IT WAS DETERMINED THAT APPROXIMATELY 7.24 BBLS OF CRUDE OIL WERE RELEASED AS A RESULT OF A PUMP SEAL FAILURE. ALL RELEASED CRUDE OIL WAS CONTAINED INSIDE THE CONCRETE CONTAINMENT BELOW THE PUMP SKID. MEDALLION USED A VACUUM TRUCK TO RECOVER THE OIL FROM THE PUMP SKID CONTAINMENT AND RETURNED IT TO THE SYSTEM. THE PUMP SEAL WAS REPLACED, AND THE PUMP RESUMED NORMAL OPERATIONS AT APPROXIMATELY 15:00 ON JANUARY 18, 2023. NO CRUDE OIL WAS RELEASED BEYOND SECONDARY CONTAINMENT.