British premier considering taking part in US-led military effort to bolster Gulf kingdom's security even as he promises to help 'deescalate' tensions in the region

Kingdom is 5th country to be part of mission to secure vessels in Strait of Hormuz following series of attacks blamed on Iran

Attack blamed on Iran that halved kingdom's oil production is latest in a series of unclaimed acts of sabotage in the Gulf, which experts say could be a new tactic by Tehran

After saying earlier that US was 'locked and loaded,' president seems intent on consulting allies before taking action

Bin Salman wants partial sale of state-owned company as part of economic diversification efforts after he led kingdom into Yemen war, appearing to put oil giant at risk of attack

After initial spike, prices moderate as traders analyze likely longer-term implications of attack that paralyzed production of more than 5% of world's daily crude oil production

Strikes by Tehran-backed Houthis spark huge fire at processor crucial to global energy supplies amid heightened tensions between Iran and US

No immediately claim of responsibility for attack which comes after previous drone strikes by Yemen's Houthi rebels

As progress made in talks with Israel, companies mull Lebanese energy sector as it prepares to start offshore drilling by end of 2019; US says American firms can join

OPEC members, as well as Russia and others, set to discuss how to stabilize market after reimposed US sanctions throw industry into uncertainty