DUBAI/SINGAPORE, July 25 (Reuters) - Abu Dhabi National Oil Co (ADNOC) has cut its crude allocations by 10 percent for September for the majority of its customers, an ADNOC spokesman said on Tuesday.

Reuters reported earlier that the company had notified two term buyers in Asia that they would receive 10 percent less crude for September, according to two sources familiar with the matter.

The cut was steady from the previous month and applies to all three Abu Dhabi grades - Murban, Das and Upper Zakum, the sources said.

(Reporting by Florence Tan in Singapore and Rania El Gamal in Dubai; Editing by Himani Sarkar and Susan Thomas) ((Florence.Tan@thomsonreuters.com; +65 6870 3497; Reuters Messaging: florence.tan.thomsonreuters.com@reuters.net))