North America, particularly the United States and Canada, possesses reserves driven by technological advancements in hydraulic fracturing and horizontal drilling. Iraq possesses some of the largest onshore oil fields in the world, including the Rumaila field.
Major Oil Reserves Countries Compared and Ranked
These nations leverage their reserves to fund massive sovereign wealth funds, drive economic diversification, and maintain strategic alliances with consuming nations across the globe. However, a significant portion of these reserves is in the form of extra-heavy crude oil and bitumen, which are difficult and expensive to extract and refine.
Venezuela: The Heavyweight Contender Venezuela presents a unique case in the reserve rankings, often sitting at the very top of the list when measured in absolute volume. Consequently, the list of top reserve holders reflects not just geology, but also the economic and political will to bring that resource to the surface.
Major Oil Reserves Countries Compared and Ranked
The extraction process is environmentally intensive, requiring significant amounts of water and energy, but it has made Canada one of the largest suppliers of crude to the United States. Meanwhile, the vast territories of the former Soviet Union hold immense quantities that have been known since the Soviet era but are only now being fully quantified and utilized.
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