The
428-square
kilometre
plot
in
the
Loma
la
Lata
Norte
area
contains
927
million
barrels
of
oil
equivalent
–
741
million
of
which
are
oil
--
in
recoverable
resources,
the
company
said
in
a
statement
Monday.
The
reserve
is
in
the
Argentinean
Neuquen
province’s
Vaca
Muerta
formation,
a
shale
play
deemed
by
analysts
to
be
among
the
world’s
most
promising.
The
oil
is
of
40
to
45
degrees
API,
and
followed
a
drilling
programme
of
15
wells.
The
Spanish
company's
Argentina
arm
is
the
world's
second-largest
holder
of
acreage
in
non-conventional
plays,
according
to…