PETROLERA SAN ANTONIO S A (Exporter) specializes in oil and gas products, primarily exporting Fuel Oil and Lubricants. Averaging 12 monthly shipments totaling 450,000 kg via 24 TEU capacity, the company demonstrates consistent operational scale. Key partners include ENERGIA GLOBAL LTDA (32% of volume) and QUIMICOS ANDINOS SOCIEDAD ANONIMA (33% of volume), with primary loading through Puerto Guayaquil (75% of shipments) and secondary use of Callao. Buyers benefit from specialization in HS codes 270900 (66% of transactions) and 271019, indicating refined petroleum product expertise. Recent monthly patterns show stable demand from Chilean ports Valparaíso (58% deliveries) and San Antonio. Customs brokers should note documentation alignment with consistent HS code declarations and recurring maritime routing patterns, suggesting predictable clearance processes. The 33% weight concentration per shipment with ENERGIA GLOBAL highlights efficient bulk logistics capabilities for industrial buyers, while multi-port unloading flexibility reduces regional supply chain risks.