CommoditiesMedium9 September 2026
2 min read

Gulf Oil Data Discrepancies Rise as Tankers Use Dark Crossings in Hormuz

Key Facts

1Estimates of Middle Eastern crude flows are varying widely as tankers use 'dark crossings' to avoid Iranian attacks in the Strait of Hormuz.

Amid escalating geopolitical tensions threatening global energy security, oil markets are facing increasing challenges regarding the accuracy of supply data. According to analyst reports, estimates of Middle Eastern crude flows are varying widely as tankers resort to 'dark crossings' to avoid potential attacks from Iranian forces in the Strait of Hormuz. This practice creates significant information gaps, complicating the ability of traders to accurately calculate physical supply levels.

Data indicates that approximately one-third of Gulf oil flows are now 'missing' from standard tracking systems as vessels intentionally disable their Automatic Identification System (AIS) transponders while transiting the strait. While physical flows continue, the lack of transparency in this vital maritime chokepoint increases market volatility. This opacity comes at a time when global trade data, such as the $88.6 billion US trade deficit recorded in early September, highlights market sensitivity to supply chain disruptions.

Traders should monitor maritime security developments in the Strait of Hormuz as a primary driver of price volatility, especially with specific instrument price levels currently unavailable. Looking at the economic calendar, upcoming data on global trade and manufacturing activity may provide further clues on demand levels, while supply risks remain tethered to the evolving security situation in the region.