Resources
at
the
Mississippi
Canyon
blocks
391
and
392
compare
to
an
estimate
of
more
than
250
million
previously
made
by
Nexen.
The
find
–
the
third
at
the
Appomattox
structure
involving
the
pair
-
was
made
this
time
two
years
ago
in
7200
feet
of
water
at
the
eastern
Gulf
blocks.
Calgary-based
independent
Nexen
holds
a
20%
interest
in
the
play
operated
by
Anglo-Dutch
supermajor
Shell
on
an
80%
interest.
Last
year,
the
duo
recorded
325
million
barrels
of
oil
equivalent
in
the
south
of
the
fault
block,
adding
to
the
2007
Vicksburg
discovery
to
the
east.
Appraisal…