1. oil reserve
Wikipedia definition
2. Global strategic petroleum reservesGlobal strategic petroleum reserves ("GSPR") refer to crude oil inventories (or stockpiles) held by the government of a particular country, as well as private industry, for the purpose of providing economic and national security during an energy crisis. According to the United States Energy Information Administration, approximately 4.1 billion barrels (650,000,000 m) of oil are held in strategic reserves, of which 1.4 billion is government-controlled. The remainder is held by private industry.
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