Methodology

ICIS Heren publishes Continental Gas Snapshots (CGS) on every working day of the year in Britain. CGS assesses and records prices and market activity on the liquid markets in Britain and Europe, including but not limited to:

  • Britain
  • Belgium
  • The Netherlands
  • France
  • Germany
  • Italy

The financial value of natural gas is established by two methods:

  1. Price Assessments: ICIS  assesses the market closing prices on the day of publication and publishes a price range for each delivery period on a number of liquid markets. This is known as the BID-OFFER RANGE, representing the highest buyer’s bid and the lowest seller’s offer at the relevant close of each market.
  2. Indexation (Heren Index): Indices are published for a variety of delivery periods and delivery points. Each Heren Index is a transaction-based price, calculated using the volume-weighted average of eligible transactions (trades) for the relevant delivery period reliably reported to ICIS.

    To find out more 
    Continental Gas Snapshot Methodology September 2013

This document is not open for consultation