PUBLISHED ONJuly 06, 2026 8:10 AMBYSean LerThe price of diesel returned below the $4 mark on Sunday (July 5), with Shell — the first to raise it past the mark on March 28 — now becoming the first to make the downward adjustment.
In a price board update at 9pm on Sunday, the London-headquartered oil and gas company announced a 10-cent reduction to its diesel price, but kept petrol prices — last adjusted on July 2 — unchanged.
The move was mirrored by Caltex, Esso and Sinopec on Monday afternoon, with American Chevron-owned Caltex and Chandra Asri-owned Esso posting the same 10-cent adjustment, while Sinopec reduced its diesel price by 15 cents.
All three companies also held their respective petrol prices steady.
This is similar to last's week's adjustments between July 2 and 3, when Caltex and Sinopec also posted reductions after Shell.
Following the latest round of changes, the price of diesel now ranges from $2.58 at Smart Energy to $4.05 at SPC.
Caltex, Esso and Shell have priced their diesel at $3.95 per litre, while Sinopec has priced its diesel at $3.89.
| Company / Fuel | 92-octane | 95-octane | 98-octane | Premium | Diesel |
| Caltex* | $3.34 | $3.37 | Not available | $4.07 | $3.95* |
| Esso* | $3.34 | $3.37 | $3.89 | Not available | $3.95* |
| Shell* | Not available | $3.37 | $3.89 | $4.11 | $3.95* |
| Sinopec* | Not available | $3.37 | $3.88 | $4.01 | $3.89* |
| SPC | $3.34 | $3.36 | $3.88 | Not available | $4.05 |
| Cnergy | Not available | $2.59 | $3.00 | Not available | $3.08 |
| Smart Energy | Not available | $2.62 | $2.99 | Not available | $2.58 |
Prices are correct as at 9.20pm on July 6. All prices are before discounts. *Indicates change to posted price(s) made between July 5 and 6. | |||||
Oil prices remained relatively stable on Monday, with Brent oil futures dropping slightly by 0.42 per cent, or US$0.30, to US$71.82 per barrel at 3.26pm (Singapore time).
That's close to what it cost before the US and Israel launched strikes on Iran in late February — and far below soaring prices that in March climbed to nearly US$120 per barrel.
There were no major moves by either side, as the US entered a long weekend for its 250th anniversary celebrations, and Iran started its funeral for its late supreme leader Ayatollah Ali Khamenei, who was killed at the start of the US-Israeli war on Iran.
Meanwhile, the Organisation of the Petroleum Exporting Countries and its allies — collectively known as OPEC+ — announced on Sunday that seven countries would expand oil production by a combined total of 188,000 barrels per day in August.
It was also the fifth consecutive month OPEC+ agreed to raise oil outputs.
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