His Majesty Haitham bin Tariq Al Said sworn in as new Sultan

His Majesty Sultan Haitham bin Tariq Al Said takes the oath before the Council of Oman this morning, the Sultan of Oman, according to the Basic Law of the State, during the emergency session held by the Council of Oman at its headquarters in Al-Bustan.

Haitham bin Tariq al-Said, 65, has been heritage and culture minister since the mid-1990s. He was previously undersecretary of the ministry of foreign affairs for political affairs and also the first head of Oman’s football federation in the early 1980s.

His appointment comes as something of a surprise to Omanis, who widely assumed that the name of 65-year-old deputy prime minister for international relations and co-operation, Asad bin Tariq al-Said, was in the sultan’s envelope.

Former military commander Asad was Qaboos’s “special representative”, fulfilling engagements abroad and making several public appearances on behalf of the sultan.

A three-day period of official mourning for the public and private sectors had been declared, state media said. “With great sorrow and deep sadness … the royal court mourns His Majesty Sultan Qaboos bin Said, who passed away on Friday,” said a statement from the royal court.

State news agency ONA said Qaboos died after “a wise and triumphant march rich with generosity that embraced Oman and extended to the Arab, Muslim and entire world and achieved a balanced policy that the whole world respected”.

While he brooked no dissent, fighting off Dhofar rebels with Britain’s help, Qaboos ruled with a lighter hand than many Gulf leaders and transformed the country from a backwater where slavery was legal and with just six miles of paved roads into a wealthy modern state.

Having played a role in Iran’s nuclear deal with world powers while preserving its membership in the Saudi-led Gulf Co-operation Council and facilitating mediation efforts in Yemen’s civil war, Oman’s policy of “friend to all and enemy to none” means Muscat has emerged as the Gulf’s discreet mediator. It remains to be seen whether the next ruler will take the same moderate approach in a region often in turmoil.

Analysts worry about royal family discord, and a resurgence of tribal rivalries and political instability, at a time when young hawks have assumed power in neighbouring Saudi Arabia and the United Arab Emirates.