South African businesses are facing renewed pressure from rising international oil prices as escalating tensions in the Middle East threaten to push up fuel, transport and operating costs.

Brent crude climbed 2.8% to around $90.60 a barrel on Monday as renewed conflict involving the United States and Iran unsettled global markets. The increase comes at a difficult time for South Africa, where domestic business activity has already weakened for three consecutive months.

The latest oil-market shock could have implications across the South African economy. Higher fuel costs typically raise the cost of transporting goods, operating commercial fleets and moving agricultural and industrial products, while also placing pressure on household disposable income.

South Africa is particularly exposed to global energy-price movements because domestic fuel prices are influenced by international petroleum prices and the rand-dollar exchange rate.

The pressure is emerging as businesses continue to navigate a fragile domestic growth environment. Reuters reported last week that the rand remained relatively firm despite weaker domestic business conditions, suggesting that international investor sentiment was providing some support to the currency.

The country's response to the energy shock is therefore likely to become an increasingly important issue for business leaders and policymakers.

South Africa has previously considered measures including adjustments to the fuel levy and improvements to strategic fuel reserves to protect the economy from external energy shocks. Reuters reported in July that government was proposing compulsory fuel stocks as part of a revamp of the country's strategic fuel-storage system.

For companies, the immediate concern is whether higher energy and logistics costs can be absorbed without significant increases in prices.

For consumers, the risk is that a prolonged oil-price increase could eventually feed into the cost of transport, food and other everyday goods.

Economists have previously warned that sustained high oil prices could create a difficult combination of weaker economic growth and persistent inflation. Financial Mail quoted economist Christopher Garvin describing high oil prices as a “macro and inflation shock” that could complicate monetary policy and increase market volatility.

The developments underline a broader challenge for South Africa: building an economy capable of growing despite external shocks while addressing domestic constraints that continue to weigh on investment and productivity.

With global oil markets now closely tied to geopolitical developments, South African companies may need to prepare for a period of greater volatility in energy and operating costs.