Syria's fractured opposition factions began key talks in the Qatari capital, Doha, Sunday aimed at forming a united front to gain international recognition and bolster their chances to oust President Bashar al-Assad.

The first four days of meetings are focused on transforming the Syrian National Council, the largest opposition grouping outside Syria, into a representative government-in-exile. SNC leaders said the group is expected to expand from some 200 members to 400.

A separate meeting of the wider opposition movement in Doha on Thursday aims to form a united coalition that includes rebel fighters and others inside Syria.

Influential opposition figure Riad Seif has proposed a structure that blends the rebel Free Syrian Army, regional military councils and other insurgent units alongside local civilian bodies and prominent opposition figures.

A Western diplomat said Seif's initiative is “supported by the United States, Britain, France and possibly by some Arab countries, Qatar and Turkey.” The U.S. last week called for an overhaul of Syrian opposition leadership, saying it is time to move beyond the SNC and bring in those “on the front lines fighting and dying.”

The exile-dominated SNC would receive only 15 seats of about 50 in Seif's proposed new united assembly. SNC chief Abdelbaset Sieda said his group would demand a 40 percent share of any new leadership body.

Meanwhile, in Syria, state television said an explosion near the Dama Rose Hotel in Damascus wounded 11 civilians. The Syrian conflict is entering its 20th month and has caused the deaths of an estimated 36,000 people.

Also Sunday, activists said rebels have captured one of the country's major oilfields in eastern Deir Ezzor province after three days of fierce fighting with government troops protecting the facility. The al-Ward oilfield is near the border with Iraq.

Meanwhile, French President Francois Hollande went to Beirut Sunday for talks with his Lebanese counterpart, Michel Suleiman, to show support for the country amid ongoing violence in neighboring Syria.

That violence has spilled into Lebanon and has been growing worse in recent months. Two weeks ago, a Beirut car bombing killed a top Lebanese intelligence official. Lebanon's opposition blames Syria for the attack and wants Lebanon's prime minister to resign, accusing his government of complicity with Damascus.

President Hollande goes to Saudi Arabia later in the day to discuss Syria with King Abdullah.