US Iran Blockade Drives Oil Past $100

Oil prices surged 6% above $100 per barrel following a US blockade of Iran, marking a sharp repricing of global crude supply risk. The move signals that markets are treating the blockade as a credible, immediate constraint on Iranian oil exports rather than a diplomatic posture. Iran is a significant OPEC producer, and any sustained interruption to its output tightens an already supply-constrained global market. The 6% single-session move reflects the scale of trader repositioning, not merely sentiment. Energy-intensive sectors face immediate margin compression as input costs spike, while oil-producing nations and equity holders in upstream producers stand to benefit. Central banks monitoring inflation will face renewed pressure if the $100 level holds or extends. The critical variable to track is whether allied nations enforce the blockade consistently and whether OPEC spare capacity, primarily held by Saudi Arabia, is mobilized to offset Iranian volume losses.