UPDATE 1-IEA sees oil demand growth slowing further in 2013

* IEA sees worrying slow-down in economic activity

* Geopolitical tensions could provide floor to prices

* Iranian exports may start picking up after July plunge

LONDON, Aug 10 (Reuters) - Global oil demand growth will

fall next year below already very weak levels of 2012 due to a

slow-down in economic activity, the West's energy watchdog said

on Friday.

The outlook by the International Energy Agency (IEA) echoes

similarly pessimistic forecasts revealed this week by the U.S.

government and the Organization of the Petroleum Exporting

Countries (OPEC). {OPEC/M]

The IEA also said oil prices may remain elevated in the next

few months as geopolitical tensions, including a stand-off

between the West and Iran over Tehran's nuclear programme,

offset the bearish impact of the weaker global economy.

"The geopolitical dimension is likely to continue to provide

something of a floor for prices. The issue of Iran will likely

continue to weigh heavy on the market through the second half of

2012," the IEA said in its monthly report.

"Moreover, there is a risk that recent progress in restoring

output from Libya, Iraq and Nigeria could be jeopardised if

recent political and civil tensions worsen."

Oil prices have plunged below $90 a barrel in June

after Saudi Arabia stepped in to raise production to multi-year

highs at a time when Iranian exports plunged because of Western

sanctions.

Prices have recovered to above $110 a barrel in August

supported by Iranian tensions and investors' hopes for new money

printing programmes from global central banks to support the

flagging economy.

The IEA said it had revised its forecast for oil demand

growth in 2013 down by 150,000 barrels per day (bpd) to 830,000

bpd, below the growth of 870,000 bpd expected in 2012.

"The latest (Chinese) data reveals a sharp deceleration in

momentum compared to the doubledigit expansions seen at the

beginning of 2011," the IEA said.

On the supply side, global oil production stood in July 2.6

million bpd higher than a year ago, with 80 percent of the

increase deriving from OPEC.

"OPEC effective spare capacity nudged higher to 2.57 million

bpd but remains slim relative to current supplyside risks

permeating the market," the IEA said.

The agency also said imports of Iranian oil by major

consumers could start picking up from August.

It estimated that in July exports of Iranian oil had fallen

to multi-year lows of 1 million bpd from 1.74 million in June.

"There is scope for imports from Iran to recover modestly

from September onwards, albeit we retain our existing assumption

that around 1 million bpd of Iranian oil may struggle to find

buyers in the second half of 2012."

"An observed decline of 14 million barrels in Iranian

floating storage in July also suggests that some extra oil is en

route to customers for August/September delivery," the IEA

added.