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Spills
- Statistics and Summaries 1996-2008
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:
 2008-2011
2004-2007
2000-2003
1996-1999
|
OCS Spill
Incidents
2008-2011 |
|
Spill
>
50 Barrels* |
2008 |
2009 |
2010 |
2011 |
|
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
|
Crude/Condensate2 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Refined Petroleum, e.g., Diesel, Mineral Oil |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Synthetic-Based Fluids** |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Chemical, e.g., Zinc Bromide, Glycol |
3 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Spill >Barrels (Totals) |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Combined Total for the Year |
5 |
0 |
0 |
0 |
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
Some crude/condensate spills are seepage (including observations
less than one bbl) totaling 50 bbl or greater in a
calendar quarter from structures damaged by 2005 Hurricanes
Katrina and Rita.
*
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 15-June-2008
|
|
OCS Spill
Incidents 2004-2007 |
|
Spill
>
50 Barrels* |
2004 |
2005 |
2006 |
2007 |
|
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
GOM |
PAC |
|
Crude/Condensate4 |
11 |
0 |
32 |
0 |
7 |
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 |
2 |
0 |
|
Chemical, e.g., Zinc Bromide, Glycol |
4 |
0 |
6 |
0 |
2 |
0 |
1 |
0 |
|
Spill >Barrels (Totals) |
22 |
0 |
49 |
0 |
14 |
0 |
4 |
0 |
|
Combined Total for the Year |
221,2 |
493 |
14 |
4 |
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.
4
Some crude/condensate spills are seepage (including observations
less than one bbl) totaling 50 bbl or greater in a
calendar quarter from structures damaged by 2005 Hurricanes
Katrina and Rita.
*
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 15-June-2008
|
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) |
7 |
0 |
9 |
0 |
12 |
0 |
12 |
0 |
|
Combined Total for the Year |
7 |
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
15-June-2008
|
|
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 15-June-2008 |
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:
08/13/08,
08:00 AM
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