The U.S. Navy on Thursday lifted its blockade of Iran's ports and coastal areas
a lasting resolution to the conflict could drive a surge in supply volumes
Tehran has not approved any text for an initial memorandum of understanding with the U.S
The fragile ceasefire implemented in April nearly unraveled this week
The loyalists still pose a major obstacle to any U.S. or Israeli hopes of effecting regime change
Authorities have attempted to maintain a dual approach
Iran urged the US to use diplomacy to ease tensions in the Middle East, as Tehran braces for a military response to a deadly attack on an American base over the weekend