The fact. On 21 September, ECO reported that the US-Iran conflict, the Houthi advance near the Bab el-Mandeb strait, and an attack on a Saudi pipeline pushed oil and distillate prices sharply higher, including jet fuel. The same day, Observador confirmed that fuel pump prices in Portugal reached levels "never seen before". This is not a one-off spike in one country. It is a supply shock moving through the whole chain, from crude to the pump near your home.
Source. ECO, 21 September, citing oil market moves tied to the US-Iran conflict and the Bab el-Mandeb disruption. Observador, same date, on record pump prices in Portugal. Separately, ECO has estimated that Portuguese drivers have already paid an extra €1.16 billion at the pump since oil pushed past $100 a barrel earlier this year. That is not a forecast. It is money already spent.
What it changes in euros a month. Take a household with two cars doing a combined 1,500 km a month, a common pattern for two commuters plus school runs and weekend errands. At an average consumption of 6 litres per 100 km, that is about 90 litres a month. A rise of 10 cents a litre, which is roughly what pump prices have moved in similar past episodes, adds €9 a month on fuel alone. Add the usual lag where diesel and petrol move at slightly different speeds, and a realistic range for many two-car households is €12 to €15 more a month. Over a year, that is €144 to €180, close to a full week of groceries for a family of four.
Why the government is not stepping in. Finance Minister Miranda Sarmento has rejected proposals from Chega and PS to cut VAT on fuel and on the basic food basket, warning that it would push the state budget into deficit by 2027. He has also asked the European Central Bank to be cautious in responding to this episode, arguing it is a supply shock from oil, not a demand shock like the one seen in 2022. In plain terms: no tax relief on fuel is coming from the state budget in the near term, and interest rates are unlikely to move sharply because of this alone. Both of those are read of current signals, not guarantees.
What we do not know. How long the Middle East tension lasts, whether it eases in weeks or drags into next year, is outside anyone's control to predict. We also do not know whether Portuguese pump prices will keep climbing at the same pace, since global oil prices and local margins do not always move together. Treat the €12 to €15 estimate as a planning range, not a fixed number for your household.
What to do this month. Three things, in order of effort.
First, check which fuel brand and station actually gives you the best price where you live and work, using a price comparison app rather than habit. Differences of 5 to 8 cents a litre between nearby stations are common in Portugal and add up over 90 litres a month.
Second, if you have a fuel card through work or a loyalty programme, check whether it is still competitive. Some cards lock you into a network that is no longer the cheapest.
Third, for the next two months while prices are unsettled, look at grouping trips. Combining the school run with a grocery stop, or using public transport for one commute a week if that is realistic for you, can offset most of the extra €12 to €15 without changing your life.
If you want to see how a 10 cent rise actually plays out against your real driving pattern and the rest of your budget, without building a spreadsheet, Household can show you that number using your own transactions. It is one line among many, not the point of the exercise.
FAQ
Why is petrol more expensive right now specifically? Oil and distillate prices, including jet fuel, rose sharply after the US-Iran conflict, the Houthi advance near Bab el-Mandeb, and an attack on a Saudi pipeline disrupted supply expectations. This pushed pump prices in Portugal to record levels, according to ECO and Observador on 21 September.
Will the government cut VAT on fuel to help? Not for now. The Finance Minister has rejected proposals to cut VAT on fuel and on the basic food basket, citing the risk of pushing the state budget into deficit by 2027. That could change, but there is no current plan to do so.
How much extra will I actually pay? It depends on how much you drive and how far prices move. As a reference, a household with two cars doing 1,500 km a month would see roughly €12 to €15 more a month for every 10 cent rise per litre. Check your own fuel receipts to see your real number.