Spills · oil

Mystery sheen, main pass 24; gulf of america

NOAAORR-10942

issued: 2025-03-29 00:00Z
status: cancelled 2025-04-12 00:00Z
self-cancels: 2025-04-12 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 29.502, -89.456
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mystery Sheen, Main Pass 24; Gulf of America.
Gulf.
1. On March 28, 2025, the NOAA NESDIS satellite surveillance program reported a mystery sheen in Main Pass 24 in the Gulf of America. The reported sheen was as long as 11nm. On 29 MAR, a USCG overflight confirmed the presence of oil on water. Oil producers in the vicinity of the sheen did not report any spills or malfunctioning equipment.
2. THREAT: OIL.
3. POSITION 29.502N 089.456W. NOAA INCIDENTNEWS 10942: https://incidentnews.noaa.gov/incident/10942

This area · spills & pollution incidents

1023 within 180 nm since 1970 · 35 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
8X38+5H dauphin island, al, USA2026-08-24
Mystery sheen at south pass 29; port eads, louisiana2026-08-13
Wcc oil spill, main pass 21; breton sound, louisiana2026-06-11
Tpic oil spill, main pass 81; gulf of america2026-06-10
Oil spill from out-of-service tank at tpic main pass 69 facility; louisiana2026-05-19

Season · when spills & pollution incidents happen here

month of issue, all years in the archive

Timeline · 20 messages since 2025-03-29 · closed 2025-11-28

Mystery sheen, main pass 24; gulf of america this message2025-03-29 → 2025-04-12
Tpic facility condensate and oil release; southwest pass and cockler bay, louisiana2025-04-01 → 2025-04-15
Leak in flowline detected by satellite imagery; triumph, louisiana2025-04-09 → 2025-04-23
Satellite imagery identifies potential oil spill; tpic wellhead, main pass jk north, louisiana2025-04-11 → 2025-04-25
Satellite imagery identifies potential oil spill; main pass 81, wellhead 36, louisiana2025-04-11 → 2025-04-25
Satellite imagery documents sheen; tpic main pass 81 b, south platform, louisiana2025-04-14 → 2025-04-28
Oil spill at apache corporation west delta platform; se of grand isle, louisiana2025-04-21 → 2025-05-05
Well #59 incident: well blowout, garden island bay; port eads, louisiana2025-04-26 → 2025-05-10
Venice, la, USA2025-05-20 → 2025-06-03
Overflow of tpic tank at romere pass facility; boothville-venice, louisiana2025-05-23 → 2025-06-06
Oil spill from platform in eloi bay; offshore louisiana, gulf of america2025-05-29 → 2025-06-12
Mystery oil slick in breton sound block 51; gulf of america2025-06-09 → 2025-06-23
Oil spill into delta national wildlife refuge; pilottown, louisiana2025-07-11 → 2025-07-25
Port sulphur, la, USA2025-07-17 → 2025-07-31
Venice, la, USA2025-07-22 → 2025-08-05
Discharge from abandoned wellhead, south pass 28; port eads, louisiana2025-08-18 → 2025-09-01
Multiple mpsrs (marine pollution surveillance reports) from the national environmental satellite, data, and…2025-09-22 → 2025-10-06
Fire and oil spill on commercial fishing vessel; breton sound, louisiana2025-10-03 → 2025-10-17
Flowline leak and in situ burn; south pass 24, louisiana2025-11-11 → 2025-11-25
On november 14, 2025, the U.S2025-11-14 → 2025-11-28

joined by proximity

Nearby now · within 120 nm

Crude oil spill and in-situ burn at tpic; south pass 24, pilottown, louisianaSpills · 27 nm
Uscg remote communication facility new orleans 29-53.00N 089-57.00W mf and hf dsc off airNav aids · 34.5 nm
8X38+5H dauphin island, al, USASpills · 88.3 nm

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