In Abuja and Akwa Ibom, NNPC stations now charge N999 per liter, up from N965.
Lagos stations saw a similar increase, to N960 per liter from N925.
This represents a price jump of between N34 and N35 per liter.
Dangote Refinery also raised its prices last week, leading to increases at its own stations and those of its partner, MRS.
Their price is now N970 per liter.
Other stations are charging even more, ranging from N1030 to N1100 per liter, depending on location.
Both Dangote Refinery and the Petroleum Products Retailers Association of Nigeria attribute the price hike to rising global crude oil prices.
However, this explanation comes despite Brent crude prices falling to $79 per barrel this week, down from over $81 last week.
Nigerians are understandably unhappy about the latest price increase.
Within Nigeria
