The costs of chartering tankers to move oil from the Middle East to Asia have climbed and ship bookings have slowed as the Israel-Iran conflict fuels worries of potential disruptions, industry sources told Reuters on Monday.

Some oil tanker owners and managers have paused offering their vessels for Middle Eastern routes since Friday as they assess the risks from Israel’s conflict with Iran, fueling concerns over export flows from the region.

The price of Dubai swaps, which is a contract settled against physical prices of Dubai crude, rose 5.8% on June 13 to end at $71.03 a barrel. The gain of $3.86 a barrel for Dubai swaps contrasts with the $4.87 jump for Brent contracts.

The UK sent jets and air tankers amid fears Iran will blockade Strait of Hormuz and spark massive oil price hikes.

Oil supplies from the Middle East face increasing risk as the conflict between Israel and Iran drags on, according to RBC Capital Markets LLC, which warned that energy is now “clearly in the crosshairs.

Smoke billowed above fuel tanks in Tehran and gas plants on Iran’s south coast on Sunday as energy became the latest front line in its conflict with Israel. Iran’s creaking energy sector, starved of foreign investment for years by sanctions,

Rising Middle East tensions have driven oil prices higher, potentially boosting Texas Pacific Land's future earnings. Read why TPL stock is a hold for now.

If prices go up, Fed officials may be inclined to raise its benchmark rate, raising borrowing costs for businesses and consumers. That could lead to businesses to cut jobs, particularly in the high-growth tech sector, and force Americans to pull back on spending, which drives more than 70% of economic activity in the U.S.

It's often more important in times of heightened tensions in the Middle East to look more at what is not happening, rather than fixating on the dramatic headlines of tit-for-tat air and missile strikes between Israel and Iran.

The US ordered some staff to leave its embassy in Baghdad, and restricted government employees and family members in Israel from traveling outside major cities like Tel Aviv. Around the same time, risk warnings from naval forces were issued to vessels operating in and around the Persian Gulf,