Oil Prices Just Jumped Near $100 a Barrel — Here's Why It Matters

The price of oil climbed close to $100 a barrel on September 8, 2026. Brent crude, the type of oil most used as a worldwide price reference, rose about 1% to $97.99 per barrel by late morning, after briefly hitting $99.46 — the highest since July 2026 — before settling at $97.92, up 92 cents or 0.9% (CNBC, Reuters, WSJ). A U.S. oil benchmark called West Texas Intermediate, or WTI, rose $1.55, or 1.7%, in the same session (Reuters).

The trigger was an attack by a Houthi militia group on southwestern Saudi Arabia. That pushed oil above $99 a barrel during the trading day before prices eased back (Reuters, New York Times). A United Nations trade agency also warned that disruptions to the Strait of Hormuz — a narrow strip of water between Iran and Oman that about a fifth of the world's oil passes through — are hitting small businesses hardest (Reuters).

The trend has been building. Over the past month, Brent has risen 10.54%. Over a longer period, it is up 46.06%, according to Trading Economics data. The $99.46 peak on September 8 is the closest oil has come to the $100 mark since July, when it topped $100 and reached $102 (AP News).

Goldman Sachs, a major investment bank, warned on September 8 that oil could reach $120 a barrel because of U.S. fuel supply concerns (Yahoo Finance). That is a big change from April, when the same bank lowered its forecast to $90 for Brent and $87 for U.S. crude (Reuters). The gap shows how much the risk of conflict has pushed prices up in five months.

It's worth noting, though, that Goldman's $120 figure is a warning about what could happen, not a prediction of where prices will actually land.

Higher oil prices also affect other parts of the economy. Rising oil prices reinforced inflation concerns in the UK, weighing on London shares (Reuters). Inflation is the rate at which prices for everyday goods and services rise. Central banks — the institutions that set interest rates — have spent nearly two years trying to bring inflation down. If oil stays above $100, higher energy costs could push prices up again, especially in countries that import most of their energy, like the UK.

Today's prices are high but still below the March 2026 spike, when Brent briefly topped $119 before settling at $108.65 during the active U.S.-Iran war (AP News). Oil prices had climbed back toward $100 in June after threats to the U.S.-Iran ceasefire, and U.S. stocks retreated from record highs at that time (AP News). On April 8, Brent settled at $95.92 after hitting $99.50 during the day (Reuters).

The pattern that keeps repeating is that oil spikes above $99 during the day but falls back by the time trading ends. What this suggests is that traders are worried about disruptions but don't believe a major, lasting supply cutoff has happened yet. Each attack pushes prices up temporarily, but without actual oil being taken off the market for a long time, prices haven't broken through $100 on a lasting basis.

For everyday consumers, the impact is straightforward. If oil stays above $100, gasoline and diesel get more expensive. That feeds into the cost of living — higher prices at the pump, higher shipping costs, and potentially higher prices on store shelves. This comes at a time when wage growth (how fast paychecks are rising) is already slowing in several major economies. For investors, rising oil prices complicate a stock market that has been riding the wave of easing inflation and possible interest rate cuts. If oil-driven inflation returns, those rate cuts could be delayed or reversed.

Here is what we know for sure: Brent is trading near $98, up nearly 11% in a month, driven by Houthi attacks on Saudi Arabia and ongoing risks around the Strait of Hormuz. Here is what the market is guessing: that the conflict stays contained and doesn't cut off oil supply for a long period. Goldman's $120 warning and the WSJ's note that this is Brent's highest level since July point to the upside risk. But the repeated pattern of spiking above $99 and then falling back suggests the market has not yet decided that oil belongs above $100 for good.