Petrol and diesel prices are expected to increase during the September 1–15 pricing window, while liquefied petroleum gas (LPG) prices are projected to decline, the Chamber of Oil Marketing Companies (COMAC) has said.
In its September 1, 2026 Pricing Outlook, COMAC projected a 3.60% to 4.80% increase in petrol prices and a 0.50% to 2.10% rise in diesel prices.
Based on its cash purchase projections, petrol could sell at about GH¢16.39 per litre, while diesel could reach GH¢17.60 per litre.
LPG, meanwhile, is projected to decline by 0.90% to 1.50%, with the cash purchase projection putting the price at GH¢16.14 per kilogramme.
COMAC said the projected increases are being driven largely by higher international crude oil and refined petroleum product prices, despite an appreciation of the cedi.
Average crude oil prices rose by 1.75%, from US$90.53 to US$92.11 per barrel, over the period under review.
Refined product prices also increased, with petrol recording the sharpest rise of 8.86%, followed by diesel at 5.51% and LPG at 3.31%.
The cedi, however, appreciated by 3.64% to GH¢11.3697 to the US dollar, based on average bank rates between August 12 and 27.
COMAC said the stronger cedi had helped to cushion the impact of rising global oil prices, but the increase in international crude and refined product prices remained strong enough to push up the projected pump prices.
The Chamber also noted that the government-industry price intervention introduced in April 2026 would remain in place to moderate the impact of higher international prices on diesel.
Under the arrangement, selected statutory diesel margins have been temporarily reduced through a burden-sharing mechanism between government and industry.
COMAC said oil marketing companies may adjust their pump prices at different times, with some expected to review prices from 6 a.m. on September 1, while others may wait to assess market competition before making changes.
The projections therefore do not mean every filling station has already increased its prices, as actual pump prices may vary among oil marketing companies.
COMAC said oil prices are expected to remain elevated and volatile, with developments surrounding the Strait of Hormuz likely to remain a key factor influencing the market.
For the September 1–15 window, COMAC’s projected price floor is GH¢14.53 per litre for petrol, GH¢15.60 for diesel and GH¢10.85 per kilogramme for LPG.