Petrol prices are projected to increase by an average of 2.42% in the second pricing window of September 2026, according to the Chamber of Oil Marketing Companies (COMAC) Price Outlook.
The outlook for September 16–30, 2026 puts the average petrol price at GH¢15.67 per litre, up from GH¢15.30 per litre in the previous pricing window.
The projected increase varies across Oil Marketing Companies (OMCs), with Frimps Oil recording the highest projected increase of 8.33%, moving from GH¢14.77 to GH¢16.00 per litre.
Zen Petroleum follows with a projected increase of 5.63%, from GH¢14.93 to GH¢15.77 per litre, while Allied Oil is projected to increase by 2.74% to GH¢15.40 per litre.
TotalEnergies is projected at GH¢16.18 per litre, up 1.19%, while Petrosol is projected at GH¢15.98, representing a 1.91% increase.
Vivo Energy, GOIL and Dukes Petroleum are projected to maintain their September 1 prices at GH¢15.99, GH¢15.43 and GH¢15.37 per litre, respectively.
The projected petrol price floor is GH¢14.53 per litre, representing a 4.38% increase from GH¢13.92.
For diesel, the outlook projects an average price of GH¢17.27 per litre, up 1.65% from GH¢16.99 in the previous window.
Zen Petroleum records the largest projected increase in diesel prices among the listed OMCs, at 7.33%, from GH¢16.37 to GH¢17.57 per litre.
Allied Oil is projected at GH¢17.25 per litre, up 3.60%, while Frimps Oil is projected at GH¢17.10, representing a 2.09% increase.
TotalEnergies and Vivo Energy are projected to maintain their diesel prices at GH¢17.59 per litre, while GOIL is projected at GH¢17.26.
The diesel price floor is projected at GH¢15.60 per litre, up 2.70% from GH¢15.19.
The outlook also shows varying pricing movements among the top-performing OMCs, with Xpress recording a 14.13% increase in its average price from GH¢16.21 to GH¢18.50 per litre, while GOIL and Kaysens recorded declines of 3.04% and 1.52%, respectively.
The projections cover the September 16–30, 2026 pricing window.
