The trade balance is the difference between exports and imports. The balance of a net exporter appears as a negative value (-). The balance of geographic and geopolitical zones is simply the sum of the trade balance of all the countries.

Natural gas is mainly made of methane (CH4). It is marketed after separation of the liquid fractions. The calorific power of natural gas varies according to its methane concentration. The standard coefficient used by ENERDATA is: 0.82 toe/m3, for important countries national coefficients are used.

• Browse in the selection tree in the left column
• Select a data serie by clicking
• The map and graph are displayed
• Click on a world region to view country detail
• Pass the cursor over a country / zone to view 2009 data
• Export data to Excel by clicking on the appropriate button
• A country ranking is displayed for each data serie selected (left column)
• A glossary and data sources are also available