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China's crude storage grew in March, reversing an earlier draw: Russell

China's crude storage grew in March, reversing an earlier draw: Russell

In March, China's refineries produced the most oil in an entire year. However, the amount of crude added to inventories rose to its highest level in almost three years due to a surge in imports.

According to calculations based upon official data, China's crude surplus reached 1.74 million barrels a day (bpd). This is the highest level since June 2023.

In March, refiners had a large surplus of crude oil available after they had drained their stockpiles during the first two months of this year when imports of oil were low due to the high prices at the time of cargo arrangements.

China does not reveal the volume of crude oil flowing in or out of its strategic and commercial stockspiles. However, an estimate can still be made by subtracting the amount processed from the total crude oil available from both imports and domestic production.

According to data released by the government on April 16, refining processed 14.85 millions bpd during March. This is up 0.4% compared to the same month of 2024.

In March, crude imports reached 12.11 million barrels per day (bpd), up 5% on the same month last year and the highest level since August 2023.

According to records, domestic production rose 3.5% in March to 4,48 million bpd, the highest since the middle of 2011.

After subtracting the volume of processing, 16.59 million bpd is available for refiners.

China's refiners used up their inventories for the first time since 18 months in the first two-month period of 2025. They processed about 30,000 barrels per day more than they could get from crude imports or domestic production.

The massive surplus in march means that there were 580,000 bpd of crude oil available for the first three months, more than what was being processed.

The story of the world's largest crude importer for March is that both the imports and the refinery processing were stronger than they had been in the previous two months.

It is unclear whether the performance of March was a result of improved demand in the second largest economy in the world, or if it was more driven by temporary factors.

IRAN IMPORTS

The surge in imports of crude oil from Iran and Russia was the main reason for this rebound.

Kpler, a commodity analyst firm, estimated that imports from Iran reached 1.71 million barrels per day (bpd) in March. This is a 20% increase from the 1.43 million barrels per day of February and reflects a five-month record.

The increase in Iranian imports was driven largely by the expectation that the United States would introduce new measures targeting vessels carrying Iranian oil. This led China's refiners stock up on Iranian oil before new sanctions were implemented.

Imports of Russian crude oil also increased as refiners began using non-sanctioned tanks to transport cargoes. This allowed them to avoid the sanctions that former U.S. president Joe Biden imposed just before he passed Donald Trump over in January.

March's crude imports came at a time when global prices were also easing. Brent futures, the benchmark for 2025, went from a high of $82.63 per barrel on January 15 to less than $70 in early March.

China's refiners are more likely to increase crude purchases when prices fall and reduce imports when prices rise. This was the case in the first two month of this year.

The price of crude oil has fallen further since March. It reached a five-year high on April 8, at $61.34 per barrel, as concerns about the global economy grew amid Trump's escalating tariff war.

It may help import volumes in the coming months. However, it will also depend on how fast Trump's massive tariffs on Chinese imports translate into a lower fuel demand when manufacturing and shipping volume declines.

The higher processing rates in March were likely due to the increased run rate at smaller independent plants, as well as by the launch of a new unit by Shandong Yulong Petrochemical.

If the Chinese economy is able to navigate the tariff storm, it will determine whether or not refinery volumes can continue to rise.

These are the views of the columnist, an author for.

(source: Reuters)