How Much Oil Does Saudi Arabia Really Have?

Officially, Venezuela has the world’s largest crude oil reserves with 303 billion barrels of proved reserves. But, a lot of this oil is extra-heavy crude oil, and may not be economical to produce at prevailing prices. Thus, some portion of Venezuela’s barrels may in reality no longer be in the “proved reserves” category.

Consider that Venezuela’s proved reserves jumped from 80 billion barrels in 2005 to 300 billion barrels in 2014. The main reason for that wasn’t a bunch of new oil discoveries. No, it was the fact that oil prices had reached triple digits, making Venezuela’s extra-heavy oil economical to produce. In other words, “resources” (the oil in the ground) were moved into the “proved reserves” (oil that is economical to produce) category.

Saudi Arabia, on the other hand, reported 264 billion barrels of proved reserves in 2005, and 267 billion barrels in 2014. Saudi Arabia’s barrels were deemed to be economical to produce even before oil prices spiked. For that reason, I consider Saudi Arabia’s proved reserves — 16% of the global total — to be of the most significance to the global oil market.

But doubts about the amount of Saudi Arabia’s reserves have persisted for years. In 1982, Saudi Arabia stopped allowing their oil and gas data to be scrutinized. Prior to that, outsiders had some access to information on their reserves. When that accessibility was shut down, Saudi proved oil reserves were estimated to be 166 billion barrels.

However, around 1988 Saudi raised their estimate of proved reserves by 90 billion barrels. Many pundits have suggested that this upward revision was based on internal OPEC politics. Since the reserves were no longer subject to outside audit, there was a great deal of skepticism around the official numbers the Saudis released.

The skepticism deepened when one considered that Saudi’s reserves in 1990 were 260 billion barrels, and today — nearly 30 years later — they are reportedly 266 billion barrels. Meanwhile, Saudi Arabia produced over 100 billion barrels between 1990 and 2017. How then could their reserves be essentially unchanged?

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