Oil markets are increasingly being shaped less by Iran's nuclear program and more by its ability to control the Strait of Hormuz, underscoring how geopolitical leverage in the key chokepoint is becoming central to peace talks with the US, Kpler strategists said in a note Wednesday.
Kpler data on tanker movements through the Strait show that even the risk of disruption, rather than confirmed physical blockages, is sufficient to alter freight pricing, insurance premia, and near-term crude sentiment.
Michelle Brouhard, head of Policy and Geopolitical Risk at Kpler, said market participants see this as reinforcing a persistent "geopolitical risk floor" under oil prices, even in periods of otherwise balanced supply and demand fundamentals.
The shift comes as US and Iranian officials continue to trade competing narratives over the contours of a possible agreement, with Washington signaling that any deal would include reopening the Strait of Hormuz, while Tehran insists that its strategic leverage in the Strait remains a non-negotiable asset.
Kpler said the result is a widening gap between nuclear diplomacy and energy-market reality, according to traders and analysts.
The Hormuz transit accounts for about a fifth of global seaborne crude oil, making it one of the key chokepoints in global energy flows.
Kpler vessel-tracking data have shown that rerouting capacity is limited in the short term, meaning any credible threat to passage tends to swiftly translate into higher volatility across Brent-linked benchmarks and refined product spreads.
US officials have publicly argued that a prospective agreement should address both uranium enrichment limits and the stability of the strategic waterway.
Senator Ted Cruz said a settlement that leaves Iran with enrichment capacity and strategic control over the waterway would be a "disastrous mistake," while Senator Lindsey Graham warned that acceptance of Iranian leverage over energy routes would effectively position Tehran as a "dominant force requiring a diplomatic solution."
Israel has also raised concerns that an agreement focused on the stability of the shipping lanes without dismantling Iran's enrichment capability would merely delay future confrontation, raising the risk of further regional escalation if talks underdeliver.
For now, Kpler said markets remain tightly focused on the trajectory of talks and whether energy security or nuclear containment becomes the defining objective of any eventual deal.