Dubious I added the dubious tag as it seems somewhat untrue from what I understand Global strategic petroleum reserves isn t clear in some cases but it seems to me to imply most of the stores are petroleum i e crude oil not petroleum products i e petrol diesel etc In Japan the government reserves are petroleum not petroleum products there are some privately held petroleum products as a reserve but most of the reserve is petroleum And the US Strategic Petroleum Reserve which is after all about 1 5 of the reserves is mostly crude oil according to that article