Iran and Oman have presented to the U.S. a proposal for the administration of the Strait of Hormuz that includes the joint collection of administrative fees by the two Middle East nations, four sources told NBC News.

Sources familiar with the discussions said negotiators for the two countries spent two days in Doha discussing maritime traffic in the Strait of Hormuz and unfreezing Iran's funds.

If the interim deal ends without ⁠being extended, Iran would start ⁠charging ships for passage in mid-August, though it has not yet laid out any list of what fees it will char

“If any vessel attempts to transit in the Strait without our permission…or outside of the designated route, it is responsible for any consequences.”

Iran insisted Sunday that it had a right to full control of the Strait of Hormuz, brushing aside President Donald Trump’s threats to “complete the job” of the war.

Washington offered a cash release but Iran insists on charging its own tolls for ships to pass through the critical waterway.

The U.S. president is set on bringing gas prices down and reaching a nuclear deal, but Iran has little incentive to cede its newfound power to control shipping traffic.

Iran denied its negotiators would be meeting with U.S. officials in Qatar after President Trump announced the talks would resume at Tehran's request.