Brent crude oil prices declined sharply, falling below the $80 mark and briefly touching $76.5, following the US decision to permit Iran to continue exporting oil and oil products until at least August 21. This move has introduced additional supply into the market, weighing on prices, according to FX Street.

Commerzbank echoed this development, noting the temporary dip in Brent prices linked to the US extension of Iran's export allowance. The extension signals a temporary easing of supply concerns amid geopolitical tensions.

For Japanese markets, where energy imports significantly impact economic activity and inflation, fluctuations in Brent crude prices remain a critical factor influencing the FX and equity sectors.