Top oil exporter Saudi Arabia increased its crude oil supply by 445,000 barrels a day to 10.31 million barrels a day in June from a month earlier, the Gulf Oil Review reported Wednesday.

The kingdom produced 10.10 million barrels a day last month, compared with 9.81 million barrels per day in May, according to the report published by Petroleum Policy Intelligence.

The Gulf state is currently producing around 10 million barrels a day, a person familiar with the situation said last week, giving little sign that the country has started making the output cuts demanded by some members of the Organization of Petroleum Exporting Countries.

The kingdom increased its output in June due to higher demand domestically and from its customers, the person, who asked not to be named, told Dow Jones Newswires.

OPEC last month agreed to maintain its existing oil-production ceiling and pledged to rein in overproduction after some members complained that a glut of oil due to higher output from
Saudi Arabia and other Gulf countries could lead to a price crash.

Since OPEC's last meeting,
Iran and Algeria have called for an emergency gathering, while the group's president, Iraqi Oil Minister Abdul Kareem Luaiby, has already sent a letter to member states reminding them to comply with the ceiling.

But some analysts say that the kingdom will only continue pumping at high levels until the end of the summer mainly to quench its soaring demand for energy during the hot season and offset the gradual output drop of sanction-hit
Iran .