US Cash Crude-Grades little changed as investors weigh global demand reports

Sept 11 (Reuters) - Grades were little changed on Thursday, dealers said, as markets weighed conflicting demand reports amid concerns of global oversupply.

WTI Midland and WTI at East Houston, also known as MEH, were flat, while Mars gained 5 cents.

OPEC made no changes to its relatively high global oil demand growth forecasts for this year and next, and said the world economy was maintaining a solid growth trend in the second half of this year. On Sunday, OPEC+ agreed to raise production from October.

Meanwhile, world oil supply will rise more rapidly this year and a surplus could expand in 2026 as OPEC+ members increase output and supply from outside the group grows, the International Energy Agency said.

The spread between Brent and U.S. WTI crude widened 14 cents to last trade at minus $4.28. A spread wider than minus $4 encourages U.S. exports.

• Light Louisiana Sweet for October delivery firmed 5 cents to a midpoint of a $2.20 premium and was seen bid and offered between a $2 and $2.40 a barrel premium to U.S. crude futures CLc1 ​

• Mars Sour firmed 5 cents at a midpoint of a 25-cent discount and was seen bid and offered between a 40-cent and 10-cent a barrel discount to U.S. crude futures CLc1 ​

• WTI Midland was unchanged at a midpoint of a 95-cent premium and was seen bid and offered between a 75-cent and $1.15 a barrel premium to U.S. crude futures CLc1 ​

• West Texas Sour was unchanged at a midpoint of a 5-cent discount and was seen bid and offered between a discount of 25 cents​​ and a 15-cent a barrel premium to U.S. crude futures CLc1 ​

• WTI at East Houston traded between a $1 and $1.40 a barrel premium to U.S. crude futures CLc1 ​

• ICE Brent November futures LCOc1 fell $1.12 to settle at $66.37 a barrel​.

• WTI October crude CLc1 futures fell $1.30 to settle at $62.37 a barrel​.

• The Brent/WTI spread widened 14 cents to last trade at minus $4.28, after hitting a high of minus $4.13 and a low of minus $4.31.