US Cash Crude-Coastal grades ease for second straight session

May 20 (Reuters) - Coastal grades eased for a second day on Tuesday, dealers said, as demand for U.S. exports weakened and European and Asian countries looked set to seek more barrels from OPEC+ producers as they raise output.

Mars eased 10 cents, while Southern Green Canyon eased 30 cents. WTI Midland gained 5 cents, while WTI at East Houston WTC-MEH, also known as MEH, was unchanged.

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.

Kazakhstan's oil production has risen by 2% in May, an industry source said on Tuesday, an increase that defies pressure from OPEC+ on the Central Asian country to reduce its output.

U.S. crude oil stocks rose last week by 2.5 million barrels in the week ended May 16, market sources said, citing American Petroleum Institute figures on Tuesday.

The three-day roll trade begins on Wednesday after the front-month U.S. crude futures contract CLc1 expires. Traders use the period to square positions and manage exposure.

* Light Louisiana Sweet WTC-LLS for June delivery was unchanged at 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 20 cents at 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

* WTI Midland WTC-WTM rose 5 cents at a midpoint of a 65-cent premium and was seen bid and offered between a 40-cent and 90-cent a barrel premium to U.S. crude futures CLc1

* West Texas Sour WTC-WTS gained 15 cents to a midpoint of a 15-cent premium and was seen bid and offered between parity and 30-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 fell 16 cents to settle at $65.38 a barrel on Tuesday

* WTI July crude CLc1 futures remained unchanged at $62.03 a barrel on Tuesday

* The Brent/WTI spread WTCLc1-LCOc1 narrowed 5 cents to last trade at minus $3.35, after hitting a high of minus $3.31 and a low of minus $3.41