US Cash Crude-Coastal grades weaken on low export demand

May 19 (Reuters) - Coastal grades eased on Monday, dealers said, due to weak export demand for U.S. crude as OPEC+ is set to ramp up supply.

Mars eased 45 cents, while Heavy Louisiana Sweet eased 50 cents. WTI Midland and WTI at East Houston WTC-MEH, also known as MEH, were unchanged.

Total US exports fell more than anticipated week over week, analysts at Energy Aspects noted, adding that May U.S. Gulf Coast fixtures to Europe were falling well short of the average pace by this point of the month.

U.S. crude exports fell 637,000 barrels per day to 3.4 million bpd in the week to May 9, the U.S. Energy Information Administration reported last week. Data for last week is due Wednesday.

OPEC+ has agreed to accelerate oil production hikes for a second consecutive month, raising output in June by 411,000 barrels per day, the group said on Saturday, despite falling prices and expectations of weaker demand.

Goldman Sachs said on Sunday it was retaining a cautious outlook on oil prices, as pressure from likely elevated Iranian supply and higher OECD commercial inventories will offset support from stronger global gross domestic product growth.

* Light Louisiana Sweet WTC-LLS for June delivery rose 20 cents to a midpoint of a $2.50 premium and was seen bid and offered between a $2.25 and $2.75 a barrel premium to U.S. crude futures CLc1

* Mars Sour WTC-MRS eased 45 cents to a midpoint of a 70-cent premium and was seen bid and offered between a 50-cent and 90-cent a barrel premium to U.S. crude futures CLc1

* WTI Midland WTC-WTM was unchanged at a midpoint of a 60-cent premium and was seen bid and offered between a 40-cent and 80-cent a barrel premium to U.S. crude futures CLc1

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

* WTI at East Houston WTC-MEH, also known as MEH, traded between a 60-cent and $1.00 a barrel premium to U.S. crude futures CLc1

* ICE Brent July futures LCOc1 rose 13 cents to settle at $65.54 a barrel on Monday

* WTI June crude CLc1 futures rose 20 cents to settle at $62.69 a barrel on Monday

* The Brent/WTI spread WTCLc1-LCOc1 narrowed 5 cents to last traded at minus $3.39, after hitting a high of minus $3.27 and a low of minus $3.47.