February 18 (Reuters) - Major Gulf stock markets rose in early trading on Wednesday after Iran announced progress in nuclear negotiations with the United States.

Iranian Foreign Minister Abbas Araqchi said after talks in Geneva on Tuesday that Tehran and Washington had reached an understanding on key "guiding principles" for resolving their long-running dispute over Iran's nuclear program, easing fears of a military conflict.

Oil prices were little changed in Asian trading after falling by about two percent in the previous session, as investors remained cautious about the chances of reaching a final agreement that would ease concerns about supply.

Saudi Arabia’s main index rose 0.2 percent, heading for an end to a three-day losing streak, supported by a 1.1 percent rise in shares of National Bank of Saudi Arabia, the country’s largest bank by assets.

Shares in oil giant Saudi Aramco rose 0.2 percent.

Dubai’s main index advanced 0.6 percent, driven by a 2.5 percent rise in shares of Emaar Properties and a 3.2 percent increase in shares of Air Arabia.

In Abu Dhabi, the index rose 0.3 percent.

The Qatari index rose 0.1 percent, with Qatar National Bank, the largest bank in the Gulf, climbing 0.5 percent.