This number is wrong. Instead, ~70-75%[0] of China's oil demand is met by importing.

[0]: "2024年，中国...石油对外依存度71.9%，同比下降0.5个百分点。" (In 2024, China's ... dependence on foreign oil was 71.9%, a year-on-year decrease of 0.5 percentage points.)(https://finance.sina.cn/2025-01-24/detail-inefzsek2941040.d....)