|T-90 tank - like one of 150 Russia previously planned to supply to Saudi Arabia (RIA Novosti / Valeriy Melnikov)|
"Bandar offered to intensify energy, military and economic cooperation with Moscow," a senior Syrian opposition figure told Reuters.
"Bandar sought to allay two main Russian fears: that Islamist extremists will replace Assad, and that Syria would become a conduit for Gulf, mainly Qatari, gas at the expense of Russia."
The $15 billion figure was touted by a representative of the anti-Assad opposition, which Saudi Arabia has strongly backed throughout the rebellion in Syria which has lasted more than two years. Meanwhile, a Gulf source claimed that no specific figure was involved.