
Major stock markets in the Gulf were mixed in early trade on Thursday, as investors weighed escalating regional tensions and a raft of corporate earnings announcements.
The U.S. military said on Wednesday it had carried out another round of strikes on Iran at President Donald Trump's direction, marking a 12th consecutive night of American attacks.
Iran's Revolutionary Guards said an oil tanker caught fire after an explosion while attempting to navigate what they described as a mined route in the southern Strait of Hormuz, near the coast of Oman, while two other tankers turned back.
Saudi Arabia's benchmark index eased 0.1%, hit by a 0.9% fall in the country's biggest lender Saudi National Bank .
However, oil major Saudi Aramco gained 0.5%.
Tensions were further heightened after the Iran-aligned Houthis said on Thursday they had attacked two Saudi oil tankers in the Bab el-Mandeb Strait, raising concerns over a potential threat to another key global energy shipping route alongside the Strait of Hormuz.
The Qatari index lost 0.3%, with petrochemical maker Industries Qatar dropping 1.2%.
Dubai's main share index gained 0.6%, led by a 2.9% rise in top lender Emirates NBD. The lender reported second-quarter profit that was broadly flat from the previous quarter, as asset growth and margins remained resilient in its first full-quarter results since the onset of the Iran war.
In Abu Dhabi, the index rose 0.7%, buoyed by a 4.1% rise in the United Arab Emirates' biggest lender First Abu Dhabi Bank (FAB) following a rise in quarterly earnings.
FAB's net profit for the three months ended June 30 rose to 5.72 billion dirhams ($1.56 billion), from 5.51 billion dirhams a year earlier.
(Reporting by Ateeq Shariff in Bengaluru, Editing by William Maclean)