🛢️247 bn barrels vs 95 bn.
That’s the gap between Saudi Aramco and the combined reserves of the Western oil majors today.
And it’s widening.
Since 2018:
• aramco reserves: -4%
• IOCs reserves: -19%
This is a structural shift in who controls future supply.
While ExxonMobil , Chevron , Shell and bp have leaned into capital discipline, buybacks, and portfolio high grading, Aramco has done the opposite.
It has protected and sustained its reserve base.
The result is clear.
A growing concentration of low cost, long life barrels in the hands of a few national players.
This matters more than most realize:
• Spare capacity is consolidating
• Supply elasticity is shrinking
• Pricing power is quietly shifting east
In the next demand shock, the marginal barrel won’t come from IOCs optimizing returns. It will come from those who still control scale.
This is what the next oil market will be built on.
If you’re thinking about where this leads next, especially in the context of geopolitical disruption and chokepoints, I’ve broken it down in my latest piece.
Link in the comments👇