The Iranian president's visit to Kuwait this week could kick-start dialogue between Tehran and the Gulf States, say analysts.
Iranian President Hassan Rouhani visited Oman on Wednesday before moving on to Kuwait for his first visit to the oil-rich Gulf country since he was elected president in mid-2014.
"Iran views Kuwait as a trustworthy mediator," Ayed Al-Mannaa, a political science professor at Kuwait University, told the Anadolu Agency.
"Oman is also close to Tehran and has played a role in bridging the US-Iranian gap," he said.
Rouhani's recent Gulf tour came amid efforts by Kuwait to improve relations between the Gulf Cooperation Council (GCC) and Iran.
In a landmark visit last month to Tehran, Kuwaiti Foreign Minister Sabah Al-Khalid Al-Sabah delivered a message on the importance of Gulf-Iranian relations.
At a December GCC summit held in Bahrain, the six-nation Gulf bloc had tasked Kuwait with establishing contacts with Iran.
"The visit could lead to a breakthrough in Gulf-Iranian relations and an easing of tension between the two sides," Al-Mannaa said.
Al-Mannaa believes that Rouhani's Gulf tour this week could also help ease US pressure on Tehran.
"Iran seeks to prevent the US from exploiting Iran-Gulf tension to escalate the situation against Tehran," he said.
"Iran therefore hopes to defuse [Gulf-Iran] tension before it turns into a major crisis," he added.
"Iran wants to show that it's a major regional player and can't be ignored," he said.
GCC member states often accuse Iran of meddling in their internal affairs – claims denied by Tehran.
Tension has mounted between the Gulf and Iran since Riyadh cut diplomatic ties with Tehran early last year. The move came after two Saudi diplomatic missions in Iran were attacked by protesters following the execution of a prominent Shia cleric by the Saudi authorities.
Saudi Arabia and its Gulf allies also accuse Tehran of supporting Yemen's Shia Houthi group, which overran the Yemeni capital Sana'a and other parts of the country in 2014.
The ongoing conflict in Syria, which is about to enter its seventh year, has also contributed to the deterioration of Gulf-Iran relations.