Oil Price Drivers

Oil prices are set by the interaction of geology, geopolitics, and macroeconomics, not by any single actor. OPEC controls the margin; everyone else rides the wave.

Five factors drive the oil price, ranked roughly by impact magnitude. Global demand (GDP growth in China and India moves millions of barrels per day). OPEC+ production decisions (spare capacity acts as a supply valve). Geopolitical disruptions (wars, sanctions, and instability in producing regions remove supply suddenly). US shale response (the speed at which US drillers add or cut production in response to price signals). Financial speculation (futures trading amplifies short-term moves but does not set long-term direction).

The interaction matters more than any individual factor. In 2014, US shale flooded the market while Chinese demand growth slowed. OPEC refused to cut production. Price collapsed from $110 to $30/barrel. In 2022, post-COVID demand surged, Russia's invasion disrupted supply, and OPEC+ cut cautiously. Price spiked to $120.

The spare capacity indicator. OPEC spare capacity (the difference between what OPEC can produce and what it is producing) is the single best predictor of price volatility. When spare capacity is below 2 million bpd, any disruption causes a price spike.

In 2023, OPEC spare capacity was roughly 3-4 million bpd. Was the market vulnerable to a major disruption?

Moderately buffered. At 3-4 million bpd spare, OPEC could absorb a disruption equivalent to losing Iraq or Libya without prices spiraling. Below 2 million bpd, the buffer disappears and even a minor disruption (a pipeline attack, a hurricane) can trigger a $20-30 spike.

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