MARATHON PIPE LINE LLC
hazardous_liquid Incident — — June 26, 2025
Incident Information
| Incident Date | June 26, 2025 |
| Operator | MARATHON PIPE LINE LLC |
| Commodity | CRUDE OIL |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 30.01153, -90.85913 |
Cause
| Cause | OTHER OUTSIDE FORCE DAMAGE |
| Subcause | PREVIOUS MECHANICAL DAMAGE NOT RELATED TO EXCAVATION |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $100,000 |
| Emergency Response | $999,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON THURSDAY, JUNE 26TH, 2025, AN OPERATIONS TECHNICIAN WORKING ONSITE NOTICED CRUDE OIL LEAKING FROM THE EXCAVATION AREA ASSOCIATED WITH THE RECENT HG1 VALVE REPLACEMENT. AT APPROXIMATELY THE SAME TIME, THE CONTROL ROOM WAS INVESTIGATING A CPM WARNING ALARM. THE OPERATIONS TECHNICIAN IMMEDIATELY CONTACTED THE OPERATIONS CENTER TO INITIATE A SHUTDOWN OF THE 40"" CAPLINE CRUDE LINE AND NOTIFIED SUPERVISION. IT WAS DISCOVERED THAT THE DRAIN PLUG IN THE RECENTLY REPLACED VALVE HAD DISLODGED, RESULTING IN THE RELEASE. THE FOLLOWING WILDLIFE WERE IMPACTED BY THE RELEASE: ONE ALLIGATOR, ONE BIRD, ONE FISH, ONE ANNELID, AND THREE TURTLES. AN INVESTIGATION IS ONGOING AND SUPPLEMENTAL WILL BE FILED UPON COMPLETION. SUPPLEMENTAL UPDATE 02/02/2026: THE INVESTIGATION/ANALYSIS CONCLUDED THAT IT IS LIKELY THE ORIGINAL PLUG WAS DAMAGED POST HYDROTEST BY THE WEIGHT OF THE VALVE BEFORE FAILING UNDER A PRESSURE CYCLE."
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.