Deviations, Diversions, Detention and Waiting for Orders Under Tanker Charterparties

25 January

Venue: Honourable Artillery Company, Armoury House, City Road, London EC1Y 2BQ

We reached the maximum capacity of the meeting room and, regrettably, we can no longer accept additional delegates.

Event description

This free workshop presented by the leading independent oil industry consultancy Asdem will be held on the afternoon of Friday 25 January from 4:00 – 5:45 pm and immediately before the LTOPS party in the evening. It is designed specifically for, and is aimed at, the practical day-to-day working requirements of oil industry operations professionals. This presentation will consider instructions requesting a tanker to go to and wait at a place/anchorage – in what circumstances can operators issue such instructions? Can an owner refuse such orders? What does the contract say? – are there limits on what operational changes can be made? What are the rights and obligations of owners and charterers when changes are made and accepted? Does an implied contract arise and what are the consequences and what are the terms of such an implied contract if it arises?




ANDREW WILDING, Managing Director, Asdem


Andrew Wilding received an honours degree in law from the London School of Economics and Political Science (1986) and went on to post graduate studies at London University in the design construction and operation of oil tankers (1987). Andrew then qualified as a lawyer, specialising in maritime law with the premier city law firm of Sinclair Roche and Temperley (SRT) (1988). Upon qualification Andrew moved to Hong Kong (1989) and eventually joined Stephenson Harwood (following their merger with SRT) where he was made a Partner and was responsible for establishing and running a shipping department at their office in Singapore (2000). Andrew left Stephenson Harwood in 2008 to join Roger Sepkes at the specialist oil industry consultancy Asdem and where he focused on working as an independent commercial and legal advisor to the oil industry. Following Roger’s retirement in 2016 Andrew was appointed the Managing Director of Asdem.


Andrew is known throughout the oil industry as a leading independent specialist on oil industry contracts of sale, charterparty and bill of lading contracts for ship owners, ship managers, charterers, national oil companies, oil majors, multi-national oil and product trading companies, and their insurers. Andrew is also the industry advisor to the Naphtha Industry in Asia. Andrew works closely with a number of international regulatory bodies, chairs industry meetings and discussion groups. Andrew is a visiting professor of English Maritime Law and has lectured for numerous academic and professional institutions in Japan, Korea, China, Singapore, Hong Kong, London and the United States. He is also the author of numerous published articles on Maritime Law and has contributed to a number of books for the oil and gas industry.


Andrew is frequently asked to act as an arbitrator/mediator in order to help the oil industry settle disputes amicably.

We reached the maximum capacity of the meeting room and, regrettably, we can no longer accept additional delegates

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