Oil Prices Fall 4.5% on US-Iran Peace Deal, June 15

The US and Iran announced a peace framework on June 15, 2026, including a 60-day ceasefire and reopening of the Strait of Hormuz within 30 days. Oil prices fell 4.5% to $83.40 per barrel for Brent crude and 4.7% to $80.89 for US crude. Stock markets surged across Asia and Australia as investors repriced the reduced inflation risk from lower energy costs.

Oil Prices Slide on Ceasefire News

Brent crude fell 4.5% to $83.40 per barrel and US crude dropped 4.7% to $80.89 per barrel following the peace announcement. The deal includes a memorandum of understanding with a 60-day ceasefire extension, reopening of the Strait of Hormuz within 30 days, and lifting of the US naval blockade. Analysts at CBA forecast Brent oil will fall to $80 per barrel by year-end, assuming the strait remains open and exports resume quickly.

ASX and Asian Markets Rally

Australia’s S&P/ASX 200 jumped 110 points to 8,914, up 1.25%, posting its best two-session performance since April. The All Ordinaries gained 121.9 points, or 1.35%, to 9,128. Japan’s Nikkei 225 soared 5.5% and South Korea’s Kospi jumped 5.7%. The Australian dollar strengthened to 70.81 US cents from 70.33 US cents as base metal prices rose and safe-haven demand eased.

Relief for Central Banks and Inflation Outlook

Lower oil prices ease inflation pressure ahead of major central bank meetings this week, including the US Federal Reserve decision. Markets had already priced in a likely deal, but confirmation sent oil lower and risk appetite higher. The fall in energy prices reduces the need for central banks to maintain higher interest rates to combat energy-driven inflation.

Remaining Uncertainties on Shipping Rules

Iran stated that traffic through the Strait of Hormuz will be regulated jointly by Iran and Oman, raising questions about potential tolls on shipping. The deal includes commitments to discuss Iranian sanctions and frozen funds, with the official signing ceremony scheduled for Switzerland on June 19. Lack of clarity on freedom of shipping remains a concern, though markets rallied on the near-term relief from geopolitical tension.

Final Thoughts

Oil prices fell sharply on the US-Iran peace deal, easing inflation fears for central banks. Lower energy costs support stock market gains across Asia and Australia, though shipping rule details remain unclear.

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