Petronas confirmed this in a Facebook post, saying the shipment forms part of a broader supply network in line with the national oil company’s efforts to ensure the country’s fuel supply remains stable.

It said the one million barrels of crude oil translates to about 62 to 64 million litres of diesel, 45 to 48 million litres of petrol, 22 to 24 million litres of aviation fuel, about five to six million litres of liquefied petroleum gas (LPG), and 18 to 25 million litres of other products.

The refinement process of one million barrels of crude oil would take about six days.

Petronas said that on average, Malaysia uses about 112 million litres of fuel daily, comprising about 34 million litres of diesel, 46 million litres of petrol, 12 million litres of aviation fuel, and 20 million litres of LPG.

“The Ocean Thunder shipment represents only a portion of the 38% of Malaysia’s crude oil imports that pass through the Strait of Hormuz.

“Malaysia’s fuel supply is also sourced from a wide range of other channels within Petronas’s extensive network,” it said.

Petronas confirmed on Wednesday that fuel supply at its stations nationwide will remain secure until the end of June, extending its earlier projection by a month.

The Ocean Thunder, built in 2009 and sailing under the flag of Panama, was loaded with Basrah Heavy crude on March 2 and scheduled to discharge its cargo in Pengerang, Johor, in mid-April.

On April 5, Reuters reported that the vessel passed through the Strait of Hormuz, a day after Iran said Iraq was exempt from any restrictions on passage through the vital sea route.

The tanker is among seven Malaysia-linked vessels cleared by Iran to transit the strait.