OilTracker

Estimated from AIS broadcasts of vessel position and reported draught. Capacities are class-based approximations; “laden” derived from current draught vs each vessel’s historical max. Coverage depends on AIS receiver availability and is consistent but incomplete. Trends are reliable; absolute values are an estimate. Pre-launch series (dotted) is IMF PortWatch global tanker port-call activity, indexed to 2019 = 100.