A colleague shared his research on the November 2023 Main Pass Oil Gathering (MPOG) connector leak in the Gulf of Mexico. Given the extraordinary amount of time it takes to produce accident reports these days, it may be a while before we see the NTSB report. (Keep in mind that we are still waiting for their final report on the December 2022 helicopter crash at the West Delta 106 A platform.)
“The pipeline associated with the leak is BSEE Segment No. 11015, an 18” oil line permitted under Panther Operating Company, LLC . MPOG and Panther are owned by Third Coast ( MAIN PASS OIL GATHERING PROJECT COMPLETION (third-coast.com) . Information on this company website shows that a project was completed for the installation of a new segment 20793 and the new line placed in service on August 20, 2022.
The picture shown in the website for this project (pasted above) shows what looks like a subsea pigable Y connection, which means the main line had to be cut for this connector to be installed. The location of this subsea tie-in for the new segment is in MP 268 and the approximate distance from the Mississippi River delta is 44 miles.
As for other subsea connections, the nearest to shore is in MP 144 about 27 miles from the delta. The report on the leak says that it occurred 19 miles from delta, so not sure if there are any connectors. This distance from the delta would be in the vicinity of MP 72 and mapping information shows no connections in this area, only pipeline crossings. See attached map for PSN 11015.“
Bud's Offshore Energy (BOE) 
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