Fuel costs in Singapore continued their downward movement on Friday night after another round of adjustments from major retailers, with diesel prices seeing the latest cut.

Energy retailer Esso trimmed its diesel price by 5 cents, bringing it to about $4.32 per litre, while keeping petrol prices unchanged. The move followed similar reductions made a day earlier by other fuel operators including Caltex, Shell, Sinopec and Smart Energy.

After the latest adjustments, diesel prices across stations now range widely, from roughly $2.71 per litre at Smart Energy to about $4.32 at several major brands such as Caltex, Shell, Esso and SPC.

Chinese-owned SPC has kept its pricing unchanged since early May, standing out in a market where most retailers have recently moved in response to shifting crude trends.

Elsewhere in the market, smaller or alternative fuel providers such as Cnergy continue to offer comparatively lower pump prices, contributing to the spread between premium and budget fuel options.

The latest price movements come as global oil benchmarks remain just under the US$90 per barrel mark, reflecting continued volatility in the energy market. Traders have been reacting to shifting geopolitical signals, including comments from U.S. President Donald Trump suggesting progress in negotiations aimed at ending the ongoing conflict involving Iran. However, Iranian officials have pushed back, saying no final agreement has been reached.

The wider conflict, now entering its 15th week, continues to keep energy markets on edge, with investors cautious about potential disruptions to global supply routes.

For motorists in Singapore, the latest reductions offer slight relief at the pump, though prices remain elevated compared with earlier periods due to sustained pressure from global crude oil movements.