US Cash Crude-Cash grades strengthen on widest WTI/Brent spread since June

Aug 13 (Reuters) - Cash crude differentials broadly strengthened on Wednesday as U.S. crude's discount to the international benchmark Brent widened to its most since mid-June.

U.S. crude futures' discount to Brent widened to as much as minus $3.78 a barrel, the most since June 13, before narrowing. A wider spread makes U.S. grades more attractive to foreign buyers.

WTI Midland WTC-WTM strengthened at a midpoint of a 70-cent premium to U.S. crude futures CLc1, the strongest since May.

West Texas Sour WTC-WTS strengthened at a midpoint of a 10-cent discount, the strongest since late July. Mars Sour WTC-MRS strengthened at a midpoint of a 15-cent discount.

U.S. crude inventories unexpectedly rose by 3 million barrels to 426.7 million barrels last week, the Energy Information Administration said on Wednesday. Analysts had expected a 275,000-barrel draw. EIA/S

* Light Louisiana Sweet WTC-LLS for September delivery weakened 18 cents at a midpoint of a $1.75 premium and was seen bid and offered between a $1.50 and $2.00 a barrel premium to U.S. crude futures CLc1

* Mars Sour WTC-MRS strengthened 5 cents at a midpoint of a 15-cent discount and was seen bid and offered between a 25-cent and 5-cent a barrel discount to U.S. crude futures CLc1

* WTI Midland WTC-WTM strengthened 15 cents at a midpoint of a 70-cent premium and was seen bid and offered between a 60-cent and 80-cent a barrel premium to U.S. crude futures CLc1

* West Texas Sour WTC-WTS strengthened 5 cents at a midpoint of a 10-cent discount and was seen bid and offered between discount of 20 cents and parity to U.S. crude futures CLc1

* WTI at East Houston WTC-MEH, also known as MEH, traded between a 80-cent and $1.00 a barrel premium to U.S. crude futures CLc1

* ICE Brent October futures LCOc1 fell 49 cents to settle at $65.63 a barrel

* WTI September crude CLc1 futures fell 52 cents to settle at $62.65 a barrel

* The Brent/WTI spread WTCLc1-LCOc1 widened 6 cents to last trade at minus $3.70, after hitting a high of minus $3.67 and a low of minus $3.78