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Hydrocarbon management

At various stages during the extraction, transportation, refining, storage and distribution of petroleum and its products, there are requirements to measure its quantity and quality for allocation, custody transfer and fiscal purposes, as well as for stock control and loss prevention.

To enable the oil industry and regulators to carry out such measurements in a standardised manner the EI Hydrocarbon Management Committee (HMC), its sub-committees and work groups develop and publish guidance documents which reflect current industry best practice.

Hydrocarbon Management Sub Committees

The EI HMC manages the work programme of six sub committees

HMC-1 Upstream 
HMC-2 Refineries and downstream distribution
HMC-3 Independent inspection
HMC-4 Oil transportation (marine and pipeline bulk movements)

The Asian Forum  
(which is based in Singapore and covering all sectors)

The General Terms and Conditions (GTC) Committee
(develops and maintains model terms and conditions for hydrocarbon trading)

The committees normally meet several times each year and, in addition to developing and reviewing guidance, meetings include technical presentations and discussion and provide excellent opportunity for members to network and keep up to date with new developments. Committee members are drawn from across the industry; oil companies; inspection companies; service companies; etc.

In addition to their regular committee work, many members of HMC-2 and HMC-4 participate in measurement database activities, which generate benchmarking information for refinery and marine transportation loss control activities.

For more information on HMC-2 and the refinery loss database please see the membership guide.

International cooperation

The EI HMC is committed to international standards development and harmonisation of petroleum measurement standards and has produced a number of measurement documents jointly with the American Petroleum Institute (API). Further, the EI supports the development of International Organization for Standardization (ISO) petroleum measurement standards, providing content and organizing expert participation as appropriate. The EI (on behalf of BSI) currently hold the secretariat to ISO TC28/SC2 Measurement of petroleum and related products.

Committee members are kept up to date with international standards activities and have the opportunity to participate fully in development of guidance for international use. 

Work Groups

Documents are developed in detail by work groups comprising members from one or more of the sub committees which are drawn together to tackle specific work items. Some of the groups which are currently active are working on

  • Manual sampling
  • Offshore loading measurement
  • Liquid and gas metering systems
  • Cleaning of ships tanks and rail cars between products
  • Guidelines for auditing oil and gas stream measurement systems
  • Management of upstream measurement
  • In line density meter calibration

If you would like more information on the Energy Institute's Hydrocarbon Management  programme, or are interested in becoming an active member, please contact Kerry Sinclair e:


A number of the publications produced by the Hydrocarbon Management Committee are available for free download via the links below:

HM 0: Hydrocarbon Management Terms and Definitions

HM63: Independent Inspection Company Auditing Pre-Audit and Self Assessment Information 
HM63 annex questionnaires are available to download in word format

HM69: Procedures for determining H2S concentration in cargo tanks head spaces

HM 40: Guidelines for the crude oil washing of ships' tanks and the heating of crude oil being transported by sea 

HM 50: Guidelines for the cleaning of tanks and lines for marine tank vessels carrying petroleum and refined products

HM 80: Model general terms and conditions for free on board (FOB) sale and purchases of crude oil

HM 81: Model general terms and conditions for cost, insurance and freight (CIF) and cost and freight (CFR) sale and purchase of crude

HM 82: Model general terms and conditions for free on board (FOB) sale and purchase of petroleum products

HM 83: Model general terms and conditions for cost, insurance and freight (CIF), cost and freight (CFR) and delivery at place (DAP) sale and purchase of petroleum products

Click here for further information on other Technical Publications


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