This website is operated on behalf of the Energy Institute HMC-4 Oil Transportation Measurement Committees to provide access to Committee news and documents and to crude oil measurement and property data.

Data is submitted by committee members and others for posting on this site. The Energy Institute and the Committee members accept no responsibility for the accuracy of the data, its use or misuse.


The fall meeting was held in Houston November 7-9, 2023.

The spring meeting will be in London May 14-16, 2024.

Last Update - April 2023

Temperature data has been updated from 2022 database and the crude oil properties are from the current edition of HM40.

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