Why China is hoarding over 1 billion barrels of oil as US sanctions hit Russia

China has significantly accelerated its crude oil stockpiling throughout 2025, diverting 1-1.2 million barrels per day into strategic reserves, capitalizing on low oil prices and aiming for energy security. This aggressive accumulation has built up substantial reserves, estimated at 1.2-1.3 billion barrels, and is projected to continue, providing Beijing with a critical buffer against geopolitical shocks. This sustained buying has also helped stabilize global oil prices, preventing a sharper decline despite an oversupply, while China continues to acquire Russian crude, often settled in yuan, thereby mitigating the impact of Western sanctions.

Analysis

China has significantly accelerated its crude oil stockpiling, diverting an estimated 1 to 1.2 million barrels per day into strategic reserves during the first nine months of 2025. This aggressive accumulation capitalized on Brent crude prices near five-year lows at $65 a barrel in October, driven by Beijing's long-standing energy security objectives and President Xi Jinping's emphasis on domestic control. The move also strategically mitigates the impact of US sanctions on Russian energy, as China continues to purchase Russian crude, often settled in yuan.

Current estimates place China's combined strategic and commercial stocks between 1.2 and 1.3 billion barrels, equivalent to approximately two months of national demand. With total storage capacity exceeding 2 billion barrels and an additional 124 million barrels expected by year-end, China possesses ample room to continue this stockpiling trend well into 2026. This sustained build-up provides Beijing with a substantial buffer against global disruptions and geopolitical shocks.

This aggressive buying has played a crucial role in stabilizing global oil prices, effectively putting a floor under the market despite an International Energy Agency projected oversupply of 3.7 million barrels per day this quarter. Analysts suggest that a cessation of China's buying could lead to crude prices tumbling towards $50 a barrel, highlighting its significant market influence. This contrasts with the US Strategic Petroleum Reserve, which remains at four-decade lows.

Key Decisions for Investors

• Investors should closely monitor China's crude stockpiling pace, as any significant slowdown could remove a key support for global oil prices and increase volatility.
• Consider the geopolitical implications of China's energy security strategy, particularly its continued Russian oil purchases, which may sustain a baseline risk premium in crude markets.
• Evaluate the potential for China's sustained demand to act as a near-term floor for oil prices, informing strategies for energy sector investments and commodity-linked ETFs like BNO.
• Observe the increasing use of yuan in commodity transactions, as this trend could signal broader shifts in global trade financing and impact currency exposures.