Oil Trading Guide

Crude oil trades under two dominant global benchmarks, West Texas Intermediate and Brent, and the difference between them is not just branding. WTI is a lighter, sweeter crude produced and priced primarily around the United States, while Brent is sourced from the North Sea and serves as the reference price for much of the rest of the world, including large parts of Europe, Africa, and the Middle East. Their prices normally track each other closely, but the gap between them, known as the WTI-Brent spread, widens or narrows based on regional supply disruptions, shipping costs, and pipeline capacity, and that spread itself becomes a tradable signal about where the supply pressure in the world actually sits.

Supply-side decisions from OPEC+, the alliance of major oil-producing nations, are one of the most consistent fundamental drivers of oil prices. When the group agrees to cut production, it is deliberately tightening supply to support prices, and when it raises output targets, it is signaling either confidence in demand or a strategic decision to defend market share. Meeting outcomes and even leaked expectations ahead of meetings can move oil sharply, which is fundamental analysis operating through a coordinated group decision rather than a single data release.

On a weekly basis, oil traders watch inventory reports from the Energy Information Administration and the American Petroleum Institute, which estimate how much crude and refined product is sitting in storage in the United States. A build in inventories, meaning more oil is being stored than consumed, tends to pressure prices lower, while a larger-than-expected draw tends to support them, and because these reports land on a predictable weekly schedule, they create some of the most reliably volatile short windows in the entire commodity market.

Oil is also unusually sensitive to geopolitical events, since a large share of global production and shipping routes run through politically unstable regions. Conflict, sanctions, or attacks on production and transport infrastructure can spike prices within minutes on supply-disruption fears alone, independent of anything in the inventory or OPEC+ data. This geopolitical sensitivity also feeds correlation with other markets: oil-exporting-country currencies tend to strengthen when oil rallies, and sustained high oil prices tend to feed into broader inflation expectations, linking a commodity move back into the same interest-rate and currency dynamics covered in earlier modules.