China CNOOC taps shale oil in South China Sea exploration well

By late 2021 China produced only 35,000 barrels per day (bpd) of shale oil – extracted from shale rocks and is more complex and expensive to produce than conventional crude – mostly in onshore northern Ordos basin and northwestern Jungar basin.

That equates to less than 1% of its total oil output.
Source: Reuters (Reporting by Chen Aizhu)