I had thought the Chicoms signed a huge deal with Russia for hydrocarbon import. Maybe the project hasn't been completed yet.
Russia won't come close to meeting their need alone.
Several factors are driving the increase in China’s crude oil imports. China had the largest decline in domestic petroleum and other liquids production among non-OPEC countries in 2016, and EIA estimates it will have had the second-largest decline in 2017. Total liquids production in China averaged 4.8 million b/d in 2017, a year-over-year decline of 0.1 million b/d (2%) from 2016, and further declines in both 2018 and 2019 are forecasted in EIA’s January 2018 Short-Term Energy Outlook (STEO).
In contrast to declining domestic production, EIA estimates that growth in China's consumption of petroleum and other liquid fuels in 2017 was the world’s largest for the ninth consecutive year, growing 0.4 million b/d (3%) to 13.2 million b/d. As China has built up inventories of strategic petroleum reserves, China’s crude oil imports have increased faster than their domestic consumption.
China surpassed the United States as the world’s largest crude oil importer in 2017
https://www.eia.gov/todayinenergy/detail.php?id=34812