What yesterday was discussed in analytical notes as an unlikely “black swan” stress scenario, today has become a harsh reality. The conflict in the Middle East transitioned into a hot phase, and the main energy artery of the planet — the Strait of Hormuz — is practically blocked.

In the information space, two extremes instantly emerged. Some scream about the imminent collapse of the world economy, a return to the stone age, and oil at astronomical prices. Others, on the contrary, calm the public with statements that humanity has “huge reserves,” which will last for years of comfortable existence.

But the truth never lies in the plane of extremes. It is hidden in boring tables, logistical constraints, and the hard mathematics of infrastructure.

This article will step away from emotions and take apart the physical reality of the global oil market: calculating how many real barrels we actually have at our disposal right now, what volumes we are losing due to the blocking of the Gulf considering bypass routes, and exactly how — through pain and high prices — the global economy will adapt to this shock.

Map of Global Storage: Where is the Oil Hidden?

If we gather the data of the International Energy Agency (IEA) and estimates of specialized departments at the beginning of 2026, then the total volume of all above-ground commercial oil in the world can be estimated at approximately 8.5–9 billion barrels.

But to see the real picture, we need to lay them out into clear categories:

Strategic Reserves (SPR): The combat supply of states — this is an untouchable reserve that belongs to governments and is intended exclusively for saving the economy in a moment of wars and global catastrophes.

The main part of these reserves is reliably hidden in giant underground salt caves, as it is organized in the United States, or in specialized guarded tank farms.

OECD countries, including the US, states of Europe, and Japan, control in this category about 1.8 billion barrels. The main feature of the strategic reserve — is its 100% liquidity.

In case of critical need, this oil can be pumped out to the market practically to the last drop. At the bottom of the caves, only a miserable technical sediment will remain. This is our most reliable, predictable, and fully “edible” buffer.

Commercial OECD Reserves: This is the working oil of private corporations, wholesale traders, and oil refineries in developed countries. According to the latest statistical layouts, the industrial reserves of OECD states make up about 2.84 billion barrels. And exactly here lies the main nuance of the entire oil market.