Omid Shokri is a Washington-based senior energy security analyst. Follow him on Twitter: @ushukrik
Analysis: Biden's decision to recognise the Armenian genocide could further strain already tense ties between Turkey and the US.
Analysis: Trump and Biden paint two very different pictures of a future relationship with Iran, but either way, the 'maximum pressure' strategy looks likely to fail.
Analysis: China and Iran's bilateral relationship is gaining strategic significance.
Iran's fuel shipments to Venezuela are a show of defiance against the US, but they will do little to fundamentally change energy geopolitics.
Analysis: As sanctions bite in Tehran, Iran's biggest customers will be looking towards Riyadh for supplies, writes Omid Shokri Kalehsar
Analysis: Iran could easily export cheap gas to GCC nations, but only if it improves political relations with arch-enemy Saudi Arabia, notes Omid Shokri Kalehsar
What will happen in Middle East energy markets in 2019? What affect will any price rise/fall have on ordinary people and on regimes?
Analysis: Sanctions against Iran provides the US with a sizeable number of consumers in need of alternative suppliers, perfectly placing it ready to pick up the slack.
Analysis: Brazil, Russia, India, China and South Africa all offer potential markets for Iranian oil, but all will be wary of US retaliation, notes Omid Shokri Kalehsar.
Probing cooperation in the Caspian Sea, Iran and Azerbaijan face huge obstacles, not least in the form of the US sanctions regime.