Saudi May crude oil exports fell by 332,000 barrels per day from the previous month to 7.05 million bpd, Joint Organisations Data Initiative, also known as JODI, said on its website on Tuesday.
Crude exports decreased by 4.5 percent from 7.382 million bpd in April.
The decrease is the biggest in the past 15 months.
Crude oil production grew by 97,000 bpd month-on-month to 10.538 million bpd in May. Production rose by 0.9 percent from 10.441 million bpd in April.