US Cash Crude-Coastal grades weaken on first day of roll trade

April 23 (Reuters) - U.S. coastal crude grades weakened on Wednesday, dealers said, on the first day of the "roll" trade, a period in which the market becomes more volatile as traders square their positions.

The three-day roll trade begins after the front-month U.S. crude futures contract CLc1 expires.

Light Louisiana Sweet WTC-LLS for May delivery weakened 5 cents at a midpoint of a $1.95 premium, the weakest since March 25. Mars Sour WTC-MRS weakened 10 cents at a midpoint of a $1.25 premium.

In U.S. supply, crude oil stockpiles rose unexpectedly by 244,000 barrels to 443.1 million barrels in the week ended April 18, the Energy Information Administration said on Wednesday. Analysts had expected a 770,000-barrel draw.

Abroad, several OPEC+ members will suggest the group accelerates oil output hikes in June for a second consecutive month, three sources familiar with OPEC+ talks told Reuters, as a dispute worsens between members over compliance with production quotas.

Light Louisiana Sweet WTC-LLS for May delivery weakened 5 cents at a midpoint of a $1.95 premium and was seen bid and offered between a $1.80 and $2.10 a barrel premium to U.S. crude futures CLc1

Mars Sour WTC-MRS weakened 10 cents at a midpoint of a $1.25 premium and was seen bid and offered between a $1.15 and $1.35 a barrel premium to U.S. crude futures CLc1

WTI Midland WTC-WTM was little changed at a midpoint of a 80-cent premium and was seen bid and offered between a 70-cent and 90-cent a barrel premium to U.S. crude futures CLc1

West Texas Sour WTC-WTS was little changed at a midpoint of a 10-cent premium and was seen bid and offered between a discount of 10 cents 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 $1.10 and $1.30 a barrel premium to U.S. crude futures CLc1

ICE Brent June futures LCOc1 fell $1.32 to settle at $66.12 a barrel

WTI June crude CLc1 futures fell $1.40 to settle at $62.27 a barrel

The Brent/WTI spread WTCLc1-LCOc1 widened to last trade at minus $3.85, after hitting a high of minus $3.72 and a low of minus $3.88