The forces roiling the oil and gas industry are especially felt in the Persian Gulf region, where oil has long provided a foundation for national economies.
As in much of the world, Covid-19 and tumbling demand have upended project plans. But in the Middle East, the crisis has also affected cross-border relations, slammed state budgets and brought new twists to complex regional politics.
How the petroleum powerhouses respond to current challenges could have repercussions for years to come.
In this feature, Upstream correspondents Nassir Shirkhani and Nishant Ugal explore the key issues facing oil and gas operators in the Persian Gulf.
Saudi Arabia and oil-producing neighbours face down unprecedented financial pain
Oil market turmoil is accelerating a thaw in Qatar-Saudi relations
Lack of investment, project delays and flaring pose challenges for Opec's second-biggest producer
Oil and gas expansion plans take shape as country bets on eventual end to restrictions
Despite weak market, state player moving projects forward with aim to shore up energy independence
Adnoc may look to cut costs but insists giant project and other sour gas developments are progressing