Middle East crude flows are rebounding, but longer voyages and tighter vessel availability are pushing tanker rates and the Baltic Dirty Tanker Index to exceptional levels.
Saudi waterborne crude exports rebounded sharply in September 2026, rising to pre-war levels from roughly 3.5 million b/d in August, according to Wood Mackenzie's Middle East crude tracking. The near-doubling reversed August's trough, when Saudi volumes sat below the approximately 4.9 million b/d recorded in July, and moved the kingdom back toward its early-year run rate of roughly 7.6 million b/d seen in January.
The recovery drew predominantly on Arabian Gulf terminals rather than Red Sea berths. That routing choice matters. Wood Mackenzie's voyage data places a Middle East Gulf (MEG) to East Asia laden passage at approximately 21 days and MEG to Northwest Europe at approximately 25 days, against roughly 7 days from Red Sea loadings. Concentrating liftings at Gulf terminals lengthens the average voyage per barrel exported, with Iraq near 3.0 million b/d and Oman around 1.4 million b/d reinforcing the regional pull on tonnage.
The key divergence is between recovering volumes and deteriorating transport efficiency. Freight scarcity is not merely conceptual: the Baltic Dirty Tanker Index rose to 6,586 on 2 October and 7,444 by 6 October, while Gulf ship-to-ship congestion reportedly required dozens of additional very large crude carriers (VLCCs) to move recovering volumes. The move places dirty tanker freight at historically exceptional levels, reinforcing that the recovery in physical flows has come at a substantial transportation cost. Longer voyages are only part of the squeeze, acting alongside STS operations, security risk, waiting times and rerouting.
The constraint is increasingly logistical rather than purely volumetric. September demonstrates that Gulf exports can recover even as these factors sharply increase the vessel-days required per barrel, keeping prompt crude logistics tight while freight markets remain dislocated.
