LONDON, Aug 11 (Reuters) - European product prices slipped lower in summer-thinned trade on Wednesday, tracking losses in crude oil futures that were down by more than one percent. GASOLINE AND NAPHTHA * Prices of benchmark Eurobob, the export grade gasoline, traded at $710 and $712 a tonne fob ARA, falling from Tuesday's close at $719-$720. * Dealing was a thin 3,000 tonnes changing hands. * The fall in Eurobob prices was limited compared with crude oil and its crack, or premium, to dated Brent BFO- firmed by about 40 cents to around $5.55 a barrel. * Traders said the crack was supported by an unexpected fall in U.S. gasoline inventories in the weekly figures from industry group American Petroleum Institute on Tuesday. [API/S] * Later on Wednesday, the market focus will shift to the U.S. government data, which analysts expect to show a 200,000 barrel increase in gasoline inventories in the week to Aug. 6. [EIA/S] * ICE Brent crude futures LCOc1 were trading 85 cents lower at $78.75 a barrel by 0956 GMT. * U.S. RBOB gasoline futures RBc1 in New York were trading 0.5 percent lower at $2.0740 a gallon. * RBOB crack to U.S. crude RB-CL1=R was around $7.68 a barrel. CL-HO1=R * Turkey will support petrol sales by Turkish companies to Iran, Energy Minister Taner Yildiz told Reuters on Wednesday, despite U.S. sanctions that aim to squeeze the Islamic Republic's fuel imports. [ID:nLDE67A14K] * Russian oil giant LUKOIL (LKOH.MM) has resumed gasoline sales into Iran in partnership with China's state-run firm Zhuhai Zhenrong, trade sources said on Wednesday. [ID:nLDE67A17G] MIDDLE DISTILLATES * Barges of diesel were offered at premiums of $10 a tonne fob ARA to August ICE gas oil futures and at a $9 premium to September futures for the second half of the month. * Gas oil barges were offered at $2/$3 discounts to August futures. * The August ICE gas oil fell $7.25 to $662.25 a barrel by 1103 GMT. LGOc1 * The contango was around $7.00 a tonne, holding steady over the last 24 hours LGO-LCO1=R. * The prompt crack was $11.07 a barrel. LGO-1=R FUEL OIL * Barges of high-sulphur fuel oil (HSFO) with 3.5 percent sulphur content were offered at $444-$445 a tonne fob ARA, compared with deals around $448 on Tuesday. * On crack basis, the prices were higher than Tuesday's close around minus $9.50 a barrel. (Reporting by David Sheppard and Ikuko Kurahone)

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