Liquids supply developments in non-DoC countries

In 2025, global liquids supply from non-Declaration of Cooperation (non-DoC) countries rose by 1.0 mb/d, reaching an average of 54.2 mb/d. The United States remains the primary driver, contributing 0.5 mb/d through increased non-conventional output. This surge significantly impacts tanker demand, particularly for VLCCs and Suezmax vessels operating out of US Gulf ports like Houston and Corpus Christi. As global trade routes shift, maritime logistics companies must recalibrate voyage planning to accommodate these rising export volumes and changing crude oil supply chains.

Operational compliance remains critical as these production shifts influence cargo handling and safety protocols under MARPOL Annex I, which governs the prevention of pollution by oil. Vessels must strictly adhere to SOLAS Chapter VI regarding the carriage of cargoes, ensuring that the International Bulk Chemical Code (IBC Code) standards are maintained during loading operations. Furthermore, the ISM Code requires that safety management systems are updated to reflect the increased frequency of port calls and the specific hazards associated with handling non-conventional liquids in high-traffic terminals.

For masters and navigating officers, this shift necessitates enhanced vigilance during cargo operations and bunkering. These rank groups must ensure that all cargo documentation is precise and that ballast water management systems comply with the BWM Convention. Navigating officers should prepare for increased congestion in major US export hubs, requiring stricter adherence to bridge resource management and port-specific safety regulations to mitigate the risks associated with the intensified pace of liquid cargo logistics.