Investing.com -- Several leading European nations now accept that ships passing through the Strait of Hormuz will need to pay fees to Iran and Oman, according to a Bloomberg report Thursday.

The possibility of service fees following the US and Israeli war with Iran is now reportedly viewed by some EU countries as unavoidable. Some Gulf Arab officials are said to also privately share this view, though it may not reflect their governments' official positions.

The type and amount of fees that nations would accept remains unclear. The US and Gulf Arab countries maintain that Iran and Oman cannot impose any charges for the Hormuz strait. Concerns focus on compliance with international maritime law and the risk of setting a precedent for other countries to charge fees on different waterways.

While accepting the prospect of additional costs, European countries have urged Iranian and Omani officials not to discriminate against ships based on nationality, the report said.

Last week, Oman reportedly told European officials that returning to the pre-war status quo in the Strait of Hormuz is impossible. Ships passing through the waterway, which serves as a critical chokepoint for Gulf energy supplies, may face charges for services related to de-polluting the strait and navigation costs.

Oman, which maintains alliances with both the West and Iran, faces pressure from both sides. The sultanate borders the southern part of the strait and has sent mixed public messages about its plans, while stating it will follow international maritime law.

Oman is said to also be studying the Malacca strait in Asia as a potential model. Omani leaders believe a Malacca-type system would only work if all Persian Gulf states accept it. Whether a voluntary system would work for Iran remains unclear.

Commercial shipping through the Strait of Hormuz has increased since Iran and the US signed an interim peace deal around two weeks ago. The agreement, combined with American military support for vessels, has raised oil flows through the chokepoint from countries like Saudi Arabia to more than 10 million barrels per day, slightly above half of pre-war levels. Iran has also increased its crude exports after the US lifted a blockade of its ports.