May 20 (Reuters) - Most Gulf bourses inched higher early on Tuesday, with Dubai's main share index .DFMGI hitting a record high on optimism over business agreements between the UAE and the United States.

The agreements are expected to expand the footprint of American AI and cloud companies in the Middle East. OpenAI last week announced plans to develop a massive new data center in the UAE.

Brent futures dipped on 0.41% Tuesday as investors weighed the impact on supply from Russia-Ukraine peace talks and U.S.-Iran negotiations. O/R

Dubai's main share index .DFMGI was up 0.07%, supported by a 3.25% rise in public shareholding company National General Insurance Co NGIN.DU. The benchmark hit an all-time high for the third straight session.

Meanwhile in Abu Dhabi, the benchmark index .FTFADGI was up 0.33% and Qatar's benchmark stock index .QSI rose 0.41%, with the country's Islamic Bank Masraf Al Rayan MARK.QA up 1.99%.

Bucking the trend, Saudi Arabia's benchmark stock index .TASI fell 0.04%, weighed down by a 4.17% drop in telecom company Etihad Atheeb Telecommunication Company 7040.SE.

Water distributor Miahona 2084.SE jumped 4.52% and was among the top gainers on the benchmark.

Among global markets, MSCI's broadest index of Asia-Pacific shares outside Japan .MIAPJ0000PUS was 0.33% higher, while Wall Street futures traded lower on concerns after Moody's downgrade of the country's credit rating. MKTS/GLOB

(Reporting by Rishab Shaju in Bengaluru)

((Rishab.shaju@thomsonreuters.com ; +91 9048142177))