
Nov 4 (Reuters) - U.S. crude grades were largely mixed on Wednesday, dealers said, even as U.S. crude stocks rose last week on higher imports and weaker refining activity.
WTI Midland and WTI at East Houston, also known as MEH, eased 5 cents each, while Mars Sour gained 15 cents.
Crude inventories rose by 5.2 million barrels to 421.2 million barrels in the week ended October 31, the EIA said, compared with analysts' expectations in a Reuters poll for a 603,000-barrel rise.
Meanwhile, western sanctions on Russia and Iran are creating record volumes of oil stored on board vessels, preventing a supply glut from forming in global markets, Gunvor Group's CEO said on Wednesday.
Light Louisiana Sweet for December delivery gained to a midpoint of a $1.10 premium and was seen bid and offered between a $1.00 and $1.20 a barrel premium to U.S. crude futures CLc1
Mars Sour firmed to a midpoint of a $1.25 discount and was seen bid and offered between a $1.50 and $1.00 a barrel discount to U.S. crude futures CLc1
WTI Midland eased to a midpoint of a 50-cent premium and was seen bid and offered between a 25-cent and 75-cent a barrel premium to U.S. crude futures CLc1
West Texas Sour eased to a midpoint of a 50-cent discount and was seen bid and offered between a 75-cent and 25-cent a barrel discount to U.S. crude futures CLc1
WTI at East Houston, also known as MEH, traded between a 60-cent and $1.00 a barrel premium to U.S. crude futures CLc1
ICE Brent January futures LCOc1 fell 92 cents to settle at $63.52 a barrel on Wednesday
WTI December crude CLc1 futures fell 96 cents to settle at $59.60 a barrel on Wednesday
The Brent/WTI spread narrowed 4 cents to last trade at minus $4.09, after hitting a high of minus $4.09 and a low of minus $4.18