"When you're in that state, the market is especially vulnerable to sharp liquidations," Johnston added.
Both Israel and Iran have traded airstrikes, including on energy infrastructure, but key oil export facilities have not yet been hit.
"The Israelis have not touched Kharg Island, so that is the story right now," Mizuho's Yawger said, referring to the Iranian oil export hub.
Yawger said any strikes on Kharg Island would likely send oil prices soaring to $90 a barrel.
"It all boils down to how the conflict escalates around energy flows," said Harry Tchilinguirian, group head of research at Onyx Capital Group. "So far, production capacity and export capacity have been spared and there hasn't been any effort on the part of Iran to impair flows through the Strait of Hormuz."
Electronic interference with commercial ship navigation systems has surged in recent days around the Strait of Hormuz and the wider Gulf, which is having an impact on vessels sailing through the region, naval forces said on Monday.
About a fifth of the world's total oil consumption, or some 18 to 19 million barrels per day of oil, condensate and fuel, passes through the strait.
Iran, a member of the Organization of the Petroleum Exporting Countries, currently produces around 3.3 million bpd and exports more than 2 million bpd of oil and fuel.
The spare capacity of OPEC+ oil producers to pump more to offset any disruption is roughly equivalent to Iran's output, according to analysts and OPEC watchers.
Source: Reuters