The
Chinese
oil
and
gas
giant
saw
soaring
costs
devour
much
higher
revenues
in
the
first
half
to
post
a
similar
profit
to
a
year
ago.
PetroChina
said
it
piled
on
revenues
in
the
six
months
to
the
end
of
June
despite
“a
complex
macro-economic
environment”
which
saw
volatility
in
oil
prices
and
poor
demand
for
petrochemical
products.
The
second
half
could
prove
even
more
challenging
with
the
company
warning:
“The
uncertainty
and
instability
of
the
global
economic
recovery
may
become
more
severe,
while
the
global
financial
markets
and
crude
prices
may
see…