SINGAPORE - Saudi Arabia, the world's top crude oil exporter, will supply full volumes of crude as requested by at least four Asian refiners in June, five people with knowledge of the matter said on Tuesday.

The OPEC kingpin started easing supply cuts to buyers in May as OPEC, Russia and their allies, a group known as OPEC+, stuck to plans for a phased roll-back of oil production restrictions from May to July.  

Still, state energy giant Saudi Aramco is trimming supplies to a fifth Asia buyer in June within a permissible adjustment limit in the contract, the sources told Reuters.

Under the contracts, the seller or the buyer can adjust loading volumes, depending on demand and shipping logistics, using operational tolerance which ranges from plus to minus 10% of the contracted Saudi volume.

Saudi Aramco did not immediately comment on the matter.

Despite Saudi Aramco cutting prices for its Asian supplies in June for the first time in six months, some buyers had requested lower volumes as the price of flagship Arab Light crude was relatively higher than similar grades in the spot market such as Upper Zakum from Abu Dhabi, the sources said. 

"Upper Zakum looks much cheaper than Arab Light," one of the sources said.

Falling fuel demand in countries such as India and Japan because of COVID-19 lockdowns could have also reduced those refiners' appetite for more crude, the sources said.

 

(Reporting by Florence Tan; Editing by Muralikumar Anantharaman and Richard Pullin) ((Florence.Tan@thomsonreuters.com; Reuters Messaging: florence.tan.thomsonreuters.com@reuters.net))