The short answer
Crude oil trades under two benchmarks — WTI (US) and Brent (global). Its price is set by OPEC+ supply decisions, global demand, weekly inventories, and a geopolitical risk premium that can spike on Middle East tension. Oil also feeds directly into inflation, which loops back to the Fed and — through real yields — to gold. It is highly volatile and headline-driven, so it demands strict risk control.
WTI vs Brent
There are two headline oil benchmarks. WTI (West Texas Intermediate) is the US benchmark; Brent is the international one, referenced for most global crude. The gap between them — the Brent-WTI spread — reflects regional supply, demand and logistics.
It matters which one a chart or headline refers to. They move together broadly but are not identical, and confusing them is a common beginner error.
OPEC+ and the supply side
The single most important lever on oil is supply, and supply is coordinated by OPEC+ — the group of major producers (including Russia) that sets production quotas. When they cut output, supply tightens and prices tend to rise; when they raise it, prices tend to fall.
As with all markets, oil trades the surprise versus expectations, and a cut only matters if members actually deliver it. Watch compliance and spare capacity, not just the headline.
Demand and inventories
On the other side of the ledger sits demand — driven by global growth, especially China. Weak growth means weak oil demand, and vice versa.
Between the big supply and demand forces, traders watch weekly inventory reports: a larger-than-expected build in stockpiles is broadly bearish, a draw broadly bullish. These are regular catalysts for shorter-term moves.
The geopolitical risk premium
Oil carries a geopolitical risk premium that most markets do not. Tension around key producing regions or shipping chokepoints — the Strait of Hormuz, the Red Sea — can spike the price fast on the fear of supply disruption, even before any barrels are actually lost.
These spikes are event-driven and often mean-revert if the disruption never materialises. That is a classic lesson in why chasing a geopolitical spike is dangerous.
Why oil matters even if you only trade gold
Oil feeds directly into headline inflation through fuel and transport costs. A sustained oil spike can lift inflation, which pressures the Fed to keep rates higher — and that, through real yields, is part of the gold story.
Oil is highly volatile and gaps violently on news. If traded, it demands the same discipline as any of these markets: smaller size, structural stops, honest risk. Education, not advice.
Frequently Asked Questions
What is the difference between WTI and Brent?
WTI is the US oil benchmark and Brent is the international one, used for most global crude. They move together broadly but trade at a spread that reflects regional supply, demand and logistics.
What moves the oil price most?
Supply decisions from OPEC+, global demand, weekly inventories, and a geopolitical risk premium. In the short term, the surprise versus expectations on any of these drives the move.
What is OPEC+?
A group of major oil producers, including Russia alongside OPEC members, that coordinates production quotas. By raising or cutting output it is the most important lever on the oil supply side.
Why does a geopolitical event spike oil?
Because markets price the fear of supply disruption. Tension near key producing regions or shipping chokepoints can lift oil on the risk of lost barrels, often before any are actually lost — and the spike can fade if supply is unaffected.
How does oil affect gold?
Indirectly. Oil feeds headline inflation, which influences the Fed and, through real yields, the gold price. A sustained oil spike can therefore ripple into the gold story.