Spills · mystery_substance

Mystery sheen: marsh i. block 30; offshore louisiana

NOAAORR-7900

issued: 2008-10-03 00:00Z
status: cancelled 2008-10-17 00:00Z
self-cancels: 2008-10-17 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 28.299, -92.011
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mystery Sheen: Marsh I. Block 30; Offshore Louisiana.
Offshore Louisiana.
1. At 0630 today, a sheen was reported of about 1 x 6 miles in size. Its location was reported as 28°17'56"N--092°00'40"W. That location is about 70 miles south of Marsh Island. At 1100, the sheen was reported to have the same general characteristics. At 1330, it was reported to be about 5 by 10 miles in size, and breaking up, at location: 28°7'23"N--91°49'56"W
2. THREAT: OIL. TAGS: MYSTERY SUBSTANCE.
3. POSITION 28.299N 092.011W. NOAA INCIDENTNEWS 7900: https://incidentnews.noaa.gov/incident/7900

This area · spills & pollution incidents

1248 within 180 nm since 1970 · 41 in the last 12 months · 2 in force now

Crude oil spill and in-situ burn at tpic; south pass 24, pilottown, louisiana2026-08-26
Intermittent oil sheen; flower garden banks national marine sanctuary, bright bank2026-08-25
Mystery sheen at south pass 29; port eads, louisiana2026-08-13
Release of aluminum phosphide in M/V thorco liva; port arthur, texas2026-07-28
Mystery oiled shoreline at holly beach; cameron parish, louisiana2026-07-10
Johnson bayou, la2026-06-17

Season · when spills & pollution incidents happen here

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Timeline · 2 messages since 2008-09-20 · closed 2008-10-17

Mystery slick gulf of mexico; 75 nm south of marsh I, la2008-09-20 → 2008-10-04
Mystery sheen: marsh i. block 30; offshore louisiana this message2008-10-03 → 2008-10-17

joined by proximity

Nearby now · within 120 nm

Intermittent oil sheen; flower garden banks national marine sanctuary, bright bankSpills · 72.7 nm
Survey operations in progress until 15 sep by M/V island pride, M/V sanco swift and M/V olympic artemis in…Surveys · 112 nm

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