The Middle East conflict has entered a new phase.
Washington launched strikes against Iran in response to attacks on three commercial vessels in the Strait of Hormuz. This has reversed what had briefly appeared to be a path toward a negotiated peace just weeks earlier.
ASX shares initially slid lower, with broad selling pressure across materials, technology, and financial shares.
The energy sector is the notable exception.
On news of the new outbreak of conflict, WTI crude rose 2.66% to US$72.32 and Brent crude rose 2.55% to US$76.05 as supply disruption fears return.
Here is what that means for these energy focused ASX shares.
Image source: Getty Images
Woodside Energy Group Ltd (ASX: WDS)
Woodside shares were up yesterday, a strong move against a broadly falling market.
The company is the most direct ASX beneficiary of higher oil prices, with LNG and oil production revenue rising almost in lockstep with the global oil price.
The Scarborough LNG project is 94% complete with first cargo targeted for Q4 2026, adding earnings support at exactly the moment oil prices are recovering.
A sustained return to US$90 per barrel would upgrade Woodside's second-half FY26 revenue and dividend capacity.
The risk is equally clear: another ceasefire could reverse the trade just as rapidly as it did in June for ASX shares.
Santos Ltd (ASX: STO)
Santos shares also surged yesterday, reflecting Santos' historically higher sensitivity to oil price swings.
When the original peace deal broke in June, Santos fell 8% in a single session. Today's move reflects the reverse trade as war risk returns.
The underlying business is not dependent on geopolitical volatility to perform.
The company's Barossa LNG plant is already producing at 75% of planned 2026 production rates. Moreover, the first oil from Pikka Phase 1 in Alaska provides an additional production stream that should insulate cash flow regardless of where oil settles.
Northern Star Resources Ltd (ASX: NST)
Northern Star Resources may benefit from yesterday's escalation in a different way.
Gold is the market's preferred safe-haven asset in periods of geopolitical stress.
The gold price has already risen to US$4,187 per ounce in recent sessions, and renewed Middle East conflict adds a further layer of safe-haven demand.
Northern Star is Australia's largest listed gold miner, and the Elliott Management activist campaign continues to add a corporate catalyst dimension, with calls for a strategic review still unresolved heading into FY27.
A gold price above US$4,000 combined with an in-depth strategic review gives Northern Star shareholders two potential catalysts for future growth.
The broader picture for ASX shares
Beyond energy and gold, the renewed escalation is weighing on the rest of the ASX.
BHP Group Ltd (ASX: BHP) was down yesterday as rising oil prices increase mining operating costs, while the four major banks were all under pressure yesterday morning.
The pattern is familiar: geopolitical escalation benefits energy and gold while weighing on almost everything else.
Foolish Takeaway for ASX shares
Washington's fresh strikes on Iran have put supply risk back in the spotlight.
Woodside and Santos are today's direct beneficiaries as oil prices climb.
Northern Star benefits through the safe-haven gold price tailwind.
How long any of these moves last depends entirely on whether diplomacy reasserts itself, as it has done multiple times already in 2026.
