CENTURION PIPELINE L.P.

Incident Narrative

ON JUNE 29, 2023, AT APPROXIMATELY 07:47 AM CST, A CENTURION PIPELINE, L.P. (CPL) EMPLOYEE DISCOVERED A LEAK IN CPL'S MIDLAND STATION NEAR MIDLAND, TEXAS. CPL DETERMINED THE SOURCE OF THE LEAK TO BE STATION PIPING AND PROMPTLY ISOLATED THE LEAK. THE PIPELINE SEGMENT HAD BEEN EXCAVATED AND EXPOSED PRIOR TO THE LEAK AND WAS PENDING PIPE REPLACEMENT. ACTUAL PIPE REPLACEMENT HAD NOT COMMENCED. THIRTY-SEVEN (37) BARRELS OF CRUDE OIL WAS RELEASED AND WAS CONTAINED COMPLETELY ON-SITE. THE CONTAMINATED SOIL WILL BE REMEDIATED ON SITE. NO INJURIES, FATALITIES OR FIRES WERE ASSOCIATED WITH THIS INCIDENT. CPL REPORTED THE LEAK TO THE TEXAS RAILROAD COMMISSION, OFFICE OF PIPELINE SAFETY AT 08:44 AM CST ON JUNE 29, 2023. THE ""AFTER-HOURS"" OPERATOR NOTED THE INCIDENT AND DID NOT PROVIDE AN INCIDENT NUMBER. AT THE TIME OF THIS WRITING, THE REPAIR OF THE STATION PIPING IS PENDING AND THE ROOT CAUSE FAILURE ANALYSIS WILL BE CONDUCTED PENDING THE REMOVAL OF THE DAMAGED PIPING SEGMENT. THE RESULTING INFORMATION RELATED TO THE CAUSE OF THE LEAK, PREVENTATIVE AND MITIGATIVE MEASURES (P&M) AND COSTS ASSOCIATED WITH THE REPAIRING THE STATION PIPING WILL BE SUBMITTED VIA SUPPLEMENTAL REPORT(S). SUPPLEMENTAL REPORT REPORTED ON AUGUST 28, 2023: DURING THE ROOT CAUSE ANALYSIS, CPL DETERMINES THAT UNDER-DEPOSIT MICROBIOLOGICALLY INFLUENCED CORROSION (MIC) RESULTED IN A THROUGH-WALL INTERNAL CORROSION PIT IN THE 6 O'CLOCK POSITION OF THE MTF ROW 5 DEAD LEG #2 STATION PIPING. THIS STATION PIPING WAS A PREVIOUSLY IDENTIFIED DEAD LEG THAT WAS SCHEDULED TO BE REPLACED. ONCE REPLACED, NO FURTHER ACTIONS WILL BE REQUIRED.