MIDEAST STOCKS-Major Gulf markets mixed amid geopolitical worries

Jan 15 (Reuters) - Most stock markets in the Gulf were mixed in early trade on Thursday, with market sentiment dampened by uncertainty over the evolving geopolitical situation in the region.

The United States is pulling some personnel out of military bases in the Middle East, a U.S. official said Wednesday, after a senior Iranian official said Tehran had warned neighboring countries it would target U.S. bases if Washington launches strikes.

Saudi Arabia's benchmark index .TASI dropped 1.1%, on course to end a six-day winning streak, with Al Rajhi Bank 1120.SE losing 1%.

Among other losers, oil behemoth Saudi Aramco 2222.SE dropped 1.1%.

Oil prices - a catalyst for the Gulf's financial markets - retreated from multi-month highs after U.S. President Donald Trump calmed market anxiety over potential U.S. military action against Iran.

On Wednesday afternoon, U.S. President Donald Trump said he had been informed that the killings of anti-government protesters in Iran were easing and that he did not believe large-scale executions were planned.

The Qatari index .QSI declined 1%, hit by a 1.6% fall in Qatar Islamic Bank QISB.QA.

Dubai's main share index .DFMGI edged 0.1% higher, helped by a 1.4% rise in utility firm Dubai Electricity and Water Authority DEWAA.DU.

In Abu Dhabi, the index .FTFADGI was up 0.2%.