The naira weakened in Nigeria's official market on September 9. The CBN's official rate was ₦1,329.21 to the dollar, weaker than the ₦1,320.25 of the day before, and the day's trading ran from ₦1,321.50 to ₦1,334. That same day, Brent crude closed at $101.21, its highest since May, and Nigeria's external reserves had crossed $54 billion on September 3 for the first time since December 2008, about $8.51 billion higher than at the start of the year.
The ₦8.96 difference between the official rate on September 8 and the one on September 9 comes to ₦8,960 on a $1,000 payment.
In short
- A higher oil price doesn't automatically make the naira stronger. On September 9, Brent closed at $101.21 and reserves stood above $54 billion, and the naira weakened that day.
- Not all of Nigeria's oil earnings reach the market where banks buy and sell dollars each day. The CBN keeps some of it in the reserves, and the government uses the rest to meet its obligations and make payments abroad.
- What Nigeria earns depends on how many barrels it sells as well as the price, and production moved between 1.48 and 1.70 million barrels a day from January to May 2026.
- Importers, manufacturers, businesses paying for services, and travellers need dollars every week, and they can take up what oil brings in.
- The rate you get on the day you send money comes from how many dollars people want that day and how many are for sale.
Where Nigeria's oil dollars go
Higher oil earnings raise Nigeria's reserves. Not all of that money reaches the market where banks buy and sell dollars each day. The CBN keeps some of it in the reserves. The government uses the rest to meet its obligations and make payments abroad. So the dollars a bank can sell an importer on any given day are only part of what Nigeria earns from oil.
The reserves are the dollars Nigeria has saved. The exchange rate is the price people pay for dollars today.
A high price isn't the same as high earnings
What Nigeria earns depends on how many barrels it sells as well as what each one sells for. NUPRC data shows combined crude oil and condensate production averaged 1.63 million barrels a day in January 2026, 1.48 million in February, 1.55 million in March, 1.66 million in April, and 1.70 million in May. NNPC's monthly revenue was ₦2.57 trillion in January, ₦4.97 trillion in April, ₦4.34 trillion in May, ₦4.39 trillion in June, and ₦3.09 trillion in July, as Nairametrics reported.
A higher price doesn't guarantee higher export earnings, because the number of barrels Nigeria sells moves too.
Nigeria's buyers need dollars every week
Nigeria buys a lot from abroad. Importers, manufacturers buying inputs, businesses paying for services, and travellers all need dollars, and they need them every week. Those buyers can take up the dollars that oil brings in.
On September 9, banks bought and sold $94.43 million between themselves, up from $55.60 million the day before, in interbank trading alone. Buyers paid up to ₦1,334 for a dollar in that session, with a low of ₦1,321.50. Those are official market prices, and dealers in the parallel market quote their own.
What decides the rate you get
The rate on the day you send money comes from how many dollars people want that day and how many are for sale. That is why the naira can weaken in the same week the oil price and the reserves both rise.
Key terms
External reserves: the foreign currency, mostly US dollars, that the CBN has saved to back the naira and pay the country's bills abroad.
Official market (NFEM): the regulated Nigerian Foreign Exchange Market, where banks and licensed dealers buy and sell foreign currency.
Official rate: the CBN's volume-weighted rate for a day's trading in that market, which is why it can differ from the highest and lowest prices paid on the day.
Condensate: a light liquid produced along with natural gas. NUPRC reports it separately from crude oil, and production figures often add the two together, as they do in this piece.
Interbank trading: the dollars banks buy from and sell to each other, which is only part of the day's total trading.
Frequently asked questions
1. Does a higher oil price always make the naira stronger?
No. Nigeria earns more on each barrel when the price rises, but the number of barrels it sells moves too. Not all of that money reaches the market where banks buy and sell dollars.
2. Where do Nigeria's oil dollars go?
The CBN keeps some of it in the external reserves. The government uses the rest to meet its obligations and make payments abroad.
3. If reserves are at an 18-year high, why is the naira weaker?
The reserves are the dollars Nigeria has saved. The exchange rate is the price people pay for dollars on the day, and on September 9 buyers paid up to ₦1,334.
4. How much oil does Nigeria produce?
NUPRC data puts combined crude oil and condensate production at 1.63 million barrels a day in January 2026, 1.48 million in February, 1.55 million in March, 1.66 million in April, and 1.70 million in May.
5. What is the official rate?
It is the CBN's volume-weighted rate for the day. On September 9 it was ₦1,329.21 to the dollar, with trading between ₦1,321.50 and ₦1,334. Dealers in the parallel market quote their own prices.
