OSR Maritime

Founded by Captain Ognian S. Radev, OSR Maritime specializes in petroleum cargo loss control and marine transportation consulting for the oil and gas shipping industry. With 33 years of extensive experience spanning ship navigation, marine transportation, and cargo operations, Captain Radev established the company to address critical gaps in petroleum loss control services. His qualifications include a Master of Science in Ship's Navigation and Marine Transportation (Cum Laude) and a Master Ocean Going Unlimited Tonnage License, providing the technical foundation for the company's specialized service offerings.

OSR Maritime delivers comprehensive marine surveying and inspection services for tanker vessels, bulk carriers, and container ships. Their surveying capabilities encompass on-hire and off-hire surveys, OBQ and ROB surveys, pre-purchase and pre-lease inspections, damage surveys, draft surveys, bunker surveys, and tank suitability assessments for both ship and shore facilities. The company's expertise in custody transfer audits and vessel experience factor (VEF) calculations addresses a critical area where measurement errors can cost oil companies thousands of dollars per voyage. They emphasize that accurate VEF calculations—the difference between 0.9991 and 0.9999—can have dramatic financial impacts on cargo operations.

The company provides specialized marine operations supervision including offshore ship-to-ship cargo transfers, ship-to-barge operations, and product loading and discharge operations. Their team serves as pollution and safety advisors while offering load-to-discharge port voyage attendance to ensure continuous oversight throughout petroleum transportation operations. These services are particularly valuable for complex offshore transfer operations where specialized knowledge of both vessel and terminal operations is essential for loss prevention.

OSR Maritime's transportation consulting services extend to terminal evaluations, loss investigations, contamination investigations, and inspection company evaluations. They represent insurance companies and Protection and Indemnity (P&I) clubs, conduct vessel cleaning upgrade consultations, provide vessel owner representation, offer blending consultation services, handle demurrage claims, and perform vessel evaluations. Their custody transfer audit services ensure that measurement procedures at loading and discharge terminals meet industry standards for accuracy and loss control.

Operating from Los Angeles, California, OSR Maritime serves clients throughout the West Coast petroleum shipping corridor and internationally. The company's philosophy centers on consistently exceeding client expectations while setting higher standards in cargo loss control. They recognize that oil is among the most complex liquids transported by sea and that controlling petroleum cargo losses requires both accuracy and specialized expertise from marine superintendents with balanced knowledge of tanker operations and shore-side terminal procedures.

OSR Maritime positions itself as a technical specialist in an industry where measurement precision directly impacts profitability, offering clients access to master mariner expertise combined with practical operational experience across the full petroleum supply chain from loading terminal to discharge port.