China's commercial crude stockpiles rose in April to the highest level in three months, and diesel supplies dropped after the nation curbed refining.

China Oil, Gas & Petrochemicals, a newsletter published by Xinhua News Agency, reported on Wednesday that crude inventories, excluding emergency reserves, climbed 0.14 percent from a month earlier.

Stockpiles increased to 28.68 million metric tons, or about 210.2 million barrels, according to data compiled by Bloomberg. Diesel inventories fell 7.7 percent to 9.82 million tons, the lowest since January.

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