It, therefore, stands to reason that the international spot prices for refined diesel, combined with the US$/ZAR exchange rate, are the two key drivers of any fuel price adjustments in South Africa.
It is important to understand that the fuel price set for diesel in a particular month is based on the market price for diesel in the preceding month. We, therefore, operate on what is termed an M-1 pricing mechanism.
This means that the BFP value determined for a particular month (based on the previous month’s figures) is applied on the first Wednesday of that month and remains in force until amended on the first Wednesday of the following month. During that month, diesel is imported on a daily basis against the spot prices. Those spot prices may exceed the set BFP for the month, which means that the importer is paying more for the fuel than they are recovering against the set BFP determined for the month.They are, therefore,
trading at a loss and are then deemed to be “underrecovering” against the BFP set for the month.
Conversely, should the importer be landing the diesel at a spot price below the set BFP price for the month, they are making a profit and are deemed to the “over-recovering” against the set BFP price for the month.
These “over/under-recoveries” are measured and tracked on a daily basis by the regulating authorities. Changes can be volatile and can swing significantly on a daily basis, as will be illustrated further on in the communication. In order to smooth the volatility, these daily figures are averaged out as the month progresses. This results in the impact of the daily swings becoming less significant as one moves towards month end due to an increasing number of days contributing to the average figure. The average over/underrecovery for a month is used to determine the BFP price for the following month.
An average ”under-recovery” against the ruling BFP will mean that the price will increase the following month.