Europe Gasoline/Naphtha-Cracks weaken as demand season nears end

LONDON, Aug 30 (Reuters) - Gasoline refining margins in northwest Europe dropped to near $8.5 a barrel on Tuesday amid a significant slowdown in exports as peak summer demand season draws to an end.

* Refinery outages in the U.S (Other OTC: UBGXF - news) . Gulf Coast due to unplanned maintenance and bad weather supported the market as exports from the key hub were expected to slow, traders said.

* Around 1.2 million tonnes of gasoline have been booked from Europe to North America to load in August, according to Reuters data and traders.

* Phillips 66 (Hamburg: 18376318.HM - news) has cut production by roughly five percent at its 238,000 barrel-per-day refinery in Linden, New Jersey, amid weak refining margins, according to a source familiar with the plant's operations.

* Russia's state-owned oil major Rosneft issued a tender to sell up to 200,000 tonnes of naphtha from its refineries for delivery in November-December 2016, the company reported on its website on Tuesday.

* A rapid rebound in Asian refining margins ahead of the autumn maintenance season could prove short-lived as it may prompt refiners to lock in quick profits by increasing their run rates.

GASOLINE

* Gunvor sold to Vitol one barge of benchmark eurobob gasoline in the afternoon trading window at $474 a tonne fob ARA .

* Some 30,000 tonnes traded throughout the day at $474-$490 a tonne fob Amsterdam-Rotterdam, compared with $487-$497 a tonne on Friday. Total (LSE: 524773.L - news) and Gunvor sold to BP, Shell (LSE: RDSB.L - news) , Rolympus and Varo.

* Shell sold to Total one barge of premium unleaded gasoline at $495 a tonne fob ARA, down from $505 a tonne.

* The September swap stood at around $480 a tonne at the close, down from $498 a tonne.

* Gasoline barge refining margins rose to $8.5 a barrel from $9.34 a barrel on Friday.

* Brent crude oil futures were up 38 cents at $50.05 a barrel by 1533 GMT.

* U.S. August RBOB gasoline futures were down 1.5 percent at 1.4449 a gallon.

* The U.S. gasoline crack (RB-CL1=R) was trading at $11.10 a barrel, down from $12.08 a barrel.

NAPHTHA (NAF-C-NWE)

* No cargoes traded.

(Reporting by Ron Bousso)