Brent
fell
more
than
3%
and
US
crude
fell
4%,
with
both
posting
their
biggest
one-day
percentage
losses
since
21
June,
after
Spain's
central
bank
said
that
country's
economy
sank
deeper
into
recession
in
the
second
quarter,
Reuters
reported.
Friday's
announcement
by
Spain's
Valencia
region
that
it
would
need
help
from
Madrid
was
followed
by
weekend
reports
that
Murcia
appeared
on
course
to
ask
for
assistance.
"There
are
fears
this
could
be
the
beginning
of
a
domino
effect,
which
ultimately
leads
to
Spain
having
to
join
Greece,
Portugal
and
Ireland
in
asking
for
an
official
rescue,"
said
Carsten
Fritsch,
an
energy…
Oil falls sharply on euro debt fears