Oil prices have pulled back after two weeks of strong gains as traders take profits and wait for details of a new U.S. strategy designed to economically isolate Iran.

Brent crude fell about 1.6% to around $92.84 a barrel on Monday, while U.S. West Texas Intermediate dropped more than 2% to roughly $85.02. The decline came after both benchmarks gained more than 5% for a second consecutive week as the U.S.-Iran peace process stalled and oil shipments through the Strait of Hormuz remained severely restricted.

The pullback is therefore not necessarily a sign that the supply crisis is easing.

Instead, traders are waiting to see whether the next U.S. measures will make the physical shortage of Middle Eastern crude even worse.

Treasury Secretary Scott Bessent was scheduled to announce new sanctions on Iran Monday, describing the upcoming action as potentially the toughest sanctions package in history.

President Donald Trump has also threatened sanctions against countries that continue trading with Iran.

For oil markets, the crucial issue is whether the new measures will target Iran's remaining customers and trading networks.

If the restrictions significantly reduce Iranian exports, global supply could tighten further.

If the measures primarily target financial transactions without materially disrupting physical crude flows, the immediate impact on oil prices could be smaller.

The fundamental problem has not changed.

The Strait of Hormuz previously carried roughly one-fifth of global oil supplies.

Traffic has now fallen dramatically, with fewer than 20 commodity vessels passing through the strait over the weekend, according to shipping data cited by Reuters.

That creates an unusual energy-market situation.

The world may still have enough oil in aggregate, but getting barrels from producers to customers has become much harder.

Shipping companies face security risks.

Insurance costs have risen.

Some vessels are avoiding the waterway entirely.

And governments are trying to find alternative routes for exports.

The U.S. and Iranian blockades have sharply reduced traffic.

Iran has nevertheless allowed some Iraqi oil tankers to pass after requests from Baghdad, while Iraq's SOMO and QatarEnergy have offered crude for loading inside the strait.

These efforts can provide limited relief, but they do not restore normal market conditions.

The industry requires predictable shipping schedules and enough capacity to move millions of barrels efficiently.

A handful of vessels moving through the chokepoint is not enough to recreate the pre-conflict system.

One of the most important changes is the reduction in Iranian crude offers to Chinese buyers.

Trade sources cited by Reuters said Iranian oil availability to China has declined as the U.S. blockade restricts shipments.

China is a critical buyer of Iranian oil and has traditionally been one of the major outlets for barrels affected by Western sanctions.

A sustained reduction could force Chinese refiners to seek replacement supplies elsewhere.

That would put additional pressure on alternative producers and potentially increase the cost of crude across Asia.

Despite Monday's decline, the bigger trend remains bullish.

Brent has climbed to around $92 from approximately $71 in June.

The move reflects both inventory draws and a growing belief among market participants that Middle East supply disruptions could persist for longer than originally expected.

Morgan Stanley has consequently raised its forecast and now expects Brent to reach $100 a barrel in the fourth quarter.

That would represent another significant jump from current levels.

Oil markets are increasingly focused on time rather than simply the number of barrels currently offline.

A short disruption can be absorbed by inventories.

A prolonged disruption is much more difficult.

Refiners need regular deliveries.

Strategic reserves provide only temporary relief.

Alternative pipelines have limited capacity.

And ships traveling around longer routes require additional fuel and time.

Every week of disruption therefore increases the cost of keeping the global energy system supplied.

The biggest upside risk to oil is a coordinated escalation in economic pressure.

If the U.S. moves to restrict Iran's remaining export customers, the volume of Iranian oil reaching the global market could fall further.

If Iran responds by increasing pressure on regional infrastructure or shipping, the risk could spread beyond Iranian barrels.

That would be a much more serious supply shock.

The potential for retaliation is one reason analysts are reluctant to assume that lower prices on Monday represent the beginning of a sustained downward move.

The implications extend into monetary policy.

Brent in the low $90s is already high enough to attract attention from central banks.

If oil approaches or exceeds $100, gasoline, transportation and manufacturing costs could rise more sharply.

That would make it harder for the Federal Reserve and other central banks to reduce interest rates.

A prolonged energy shock could therefore create the worst possible combination for the economy: higher prices alongside weaker growth.

Oil prices could also fall sharply if diplomacy succeeds.

A credible agreement between Washington and Tehran could restore shipping confidence relatively quickly.

That could lower the geopolitical premium embedded in crude and encourage vessels back through Hormuz.

Inventories would then appear more comfortable, while fears of a longer supply disruption would diminish.

That is why Monday's decline should not be interpreted as a definitive change in the market's direction.

The energy market remains highly dependent on political headlines.

For the moment, those opposing forces are producing a market pause.

After two strong weekly advances, some investors are naturally locking in gains.

At the same time, traders are unwilling to abandon the bullish oil thesis while shipping remains severely restricted and sanctions risk is rising.

That explains why oil can fall by more than $1 while the medium-term outlook remains elevated.

The market now awaits Bessent's sanctions announcement.

Investors will focus on which countries, banks, shipping companies and oil buyers are targeted, how aggressively enforcement will be pursued and whether China is affected.

The details could determine whether oil resumes its climb or extends the recent pullback.

For now, the market remains fundamentally tight.

Less than 20 commodity vessels moved through Hormuz over the weekend, Iranian crude offers to China have declined and Morgan Stanley is already projecting a potential $100 Brent price in the fourth quarter.

Monday's decline therefore looks more like a pause than a resolution.

The energy market is waiting for Washington's next move — and the scale of that move could determine whether oil stays around $90 or begins another run toward triple-digit prices.