US Cash Crude-Grades fall as domestic crude stocks rise

Oct 16 (Reuters) - Grades slipped on Thursday, dealers said, as domestic crude stocks rose.

U.S. crude stocks rose more than expected last week as refining crude runs dropped sharply to their lowest in more than a year and a half, data from the Energy Information Administration showed on Thursday.

Crude inventories increased by 3.5 million barrels to 423.8 million barrels in the week ended October 10, the EIA said, compared with analysts' expectations in a Reuters poll for a 288,000-barrel rise.

Meanwhile, refinery utilization rates fell by 6.7 percentage points in the week to 85.7%, the lowest since the week of February 14.

* Light Louisiana Sweet WTC-LLS for November delivery was steady at a midpoint of a $2.15 premium and was seen bid and offered between a $2.00 and $2.30 a barrel premium to U.S. crude futures CLc1

* Mars Sour WTC-MRS fell 10 cents to a midpoint of a $1.10 discount and was seen bid and offered between a $1.20 and $1 a barrel discount to U.S. crude futures CLc1

* WTI Midland WTC-WTM fell 5 cents to a midpoint of a 60-cent premium and was seen bid and offered between a 50-cent and 70-cent a barrel premium to U.S. crude futures CLc1

* West Texas Sour WTC-WTS fell 10 cents to a midpoint of a 25-cent discount and was seen bid and offered between a 30-cent and 20-cent a barrel discount to U.S. crude futures CLc1

* WTI at East Houston WTC-MEH, also known as MEH, traded between a 75-cent and 95-cent a barrel premium to U.S. crude futures CLc1

* ICE Brent December futures LCOc1 fell 85 cents to settle at $61.06 a barrel

* WTI November crude CLc1 futures fell 81 cents to settle at $57.46 a barrel

* The Brent/WTI spread WTCLc1-LCOc1 narrowed 1 cent to last trade at minus $4.06, after hitting a high of minus $4.03 and a low of minus $4.15