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Spills
- Statistics and Summaries 1996-2007
The MMS tracks spill
incidents 1 barrel or greater in size of petroleum and other toxic
substances resulting from Federal OCS oil and gas activities. MMS has
historically produced counts and summaries for spills greater than or
equal to 50 barrels (2,100 gallons). The tables below provide counts for
spills of 50 barrels or greater, by year and by OCS Region. The counts
are linked to summaries describing the circumstances surrounding each
spill of 50 barrels or greater for that Region that year.
Effective July 17,
2006, MMS revised the regulations for incident reporting. This
regulation did not change the reporting requirement for Spills.
Currently all spills of 1 barrel or more must be reported.
OCS Spills >50
Barrels by Category:
 2004-2007
2000-2003
1996-1999
|
OCS Spill Incidents
2004-2007 |
|
Spill
> 50 Barrels* |
2004 |
2005 |
2006 |
2007YTD |
|
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
|
Crude/Condensate |
11 |
0 |
32 |
0 |
4 |
0 |
1 |
0 |
| Refined
Petroleum, e.g., Diesel, Mineral Oil |
4 |
0 |
7 |
0 |
0 |
0 |
0 |
0 |
|
Synthetic-Based Fluids** |
5 |
0 |
5 |
0 |
5 |
0 |
1 |
0 |
| Chemical,
e.g., Zinc Bromide, Glycol |
4 |
0 |
6 |
0 |
2 |
0 |
0 |
0 |
|
Spill >Barrels (Totals) |
24 |
0 |
50 |
0 |
11 |
0 |
2 |
0 |
|
Combined Total for the Year |
241,2 |
503 |
11 |
2 |
YTD
= Year to date
1
Number
of spill events with total spillage of 50 bbl or more. Column
does not add because spills include multi-product spills
where no individual product was 50 bbl or more, and spills
which involved the loss of 50 bbl or more of two or three
individual
products.
2
The 2004 increase is due to Hurricane Ivan which accounts for 15
of the 22 spills. Ivan is the first hurricane for which
unrecovered petroleum and chemicals on destroyed, heavily
damaged, and/or missing structures were reported in a
comprehensive manner.
3
The
2005 increase is due to Hurricane Katrina which accounts for 25,
and Hurricane Rita which accounts for 18, of the
49 spills.
*
In
the case of drilling muds, only the base fluids are counted as
pollution. Spills where the whole mud volume was 50 barrels
or greater but the base oil/fluid was less than 50 barrels
are annotated at the end of the narratives (two in 2004, one in
2005,
and four in 2006).
**In
deepwater drilling, synthetic-based muds (SBM’s) are preferred
over petroleum oil-based muds (OBM’s) due to the SBM’s
superior performance properties. The synthetic base fluid
used in SBM’s are less toxic to the marine environment and have
the potential to biodegrade. Only the synthetic base fluids
are counted as pollution. SBM's were first introduced in the
Gulf of
Mexico around 1999. Petroleum oil-based muds (OBM's) were the
predominant muds prior to this time (generally with diesel or
mineral oil as the base), and are still used outside of
deepwater.
SOURCE:
TIMS
Database as of
23 November 2007
|
Spill Analysis CY
2007 (Under
Construction)
|
OCS Spill Incidents
2000-2003 |
|
Spill
> 50 Barrels* |
2000 |
2001 |
2002 |
2003 |
|
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
|
Crude/Condensate |
3 |
0 |
1 |
0 |
1 |
0 |
0 |
0 |
| Refined
Petroleum, e.g., Diesel, Mineral Oil |
0 |
0 |
0 |
0 |
2 |
0 |
3 |
0 |
|
Synthetic-Based Fluids** |
5 |
0 |
5 |
0 |
7 |
0 |
7 |
0 |
| Chemical,
e.g., Zinc Bromide, Glycol |
0 |
0 |
3 |
0 |
2 |
0 |
2 |
0 |
|
Spill >Barrels (Totals) |
8 |
0 |
9 |
0 |
12 |
0 |
12 |
0 |
|
Combined Total for the Year |
8 |
9 |
12 |
12 |
*
In
the case of drilling muds, only the base fluids are counted as
pollution. Spills where the whole mud volume was 50 barrels
or greater but the base oil/fluid was less than 50 barrels
are annotated at the end of the narratives (two in 2000, one in
2001,
and one in 2002).
**
In deepwater drilling, synthetic-based muds (SBM’s) are
preferred over petroleum oil-based muds (OBM’s) due to the SBM’s
superior performance properties. The synthetic base fluid used in
SBM’s are less toxic to the marine environment and have
the potential to biodegrade. Only the synthetic base fluids
are counted as pollution. SBM's were first introduced in the
Gulf of
Mexico around 1999. Petroleum oil-based muds (OBM's)
were the predominant muds prior to this time (generally with
diesel or
mineral oil as the base), and are still used outside of
deepwater.
***One
spill had both 200 bbl crude and 573.6 bbl synthetic in GOM
2000.
SOURCE:
TIMS
Database as of
23 November 2007
|
|
OCS Spill Incidents
1996-1999 |
|
Spill
> 50 Barrels* |
1996 |
1997 |
1998 |
1999 |
|
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
|
Crude/Condensate |
0 |
1 |
1 |
0 |
3 |
0 |
2 |
0 |
| Refined
Petroleum, e.g., Diesel, Mineral Oil |
2 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
|
Synthetic-Based Fluids** |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
| Chemical,
e.g., Zinc Bromide, Glycol |
1 |
0 |
2 |
0 |
5 |
0 |
1 |
0 |
|
Spill >Barrels (Totals) |
3 |
1 |
3 |
0 |
9 |
0 |
5 |
0 |
|
Combined Total for the Year |
4 |
3 |
91
|
5 |
1
Number
of spill events with total spillage of 50 bbl or more. Column
does not add because spills include multi-product spills
where no individual product was 50 bbl or more, and spills
which involved the loss of 50 bbl or more of two or three
individual
products.
*
In
the case of drilling muds, only the base fluids are counted as
pollution. Spills where the whole mud volume was 50 barrels
or greater but the base oil/fluid was less than 50 barrels are
annotated at the end of the narratives (none between 1996-1999)
**
In
deepwater drilling, synthetic-based muds (SBM’s) are preferred
over petroleum oil-based muds (OBM’s) due to the SBM’s
superior performance properties. The synthetic base fluid
used in SBM’s are less toxic to the marine environment and have
the potential to biodegrade. Only the synthetic base fluids
are counted as pollution. SBM's were first introduced in the
Gulf of
Mexico around 1999. Petroleum oil-based muds (OBM's) were the
predominant muds prior to this time (generally with diesel or
mineral oil as the base), and are still used outside of
deepwater.
SOURCE:
TIMS
Database as of
23 November 2007 |
Spills ≥ 50
Barrels
(2,100 gal) in State Waters
MMS tracks spills
which occur on Federal leases in OCS waters, the submerged lands,
subsoil, and seabed, lying between the seaward extent of the
States' jurisdiction
and the seaward extent of
Federal jurisdiction (see spills above). The MMS
does not maintain comprehensive data on spills which have occurred in
the State's jurisdiction. However, in recent years, MMS occasionally has
collected information on State pollution incidents.
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Last Updated:
12/12/07,
01:00 PM
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