The 2005 CIA World Factbook

by United States. Central Intelligence Agency

Gabon
66.47 billion cu m (2004)

Germany
293 billion cu m (1 January 2004)

Ghana
11.89 billion cu m (1 January 2002)

Greece
254.9 million cu m (1 January 2002)

Guatemala
1.543 billion cu m (1 January 2002)

Hungary
50.45 billion cu m (1 January 2002)

India
542.4 billion cu m (2004)

Indonesia
2.549 trillion cu m (2004)

Iran
26.7 trillion cu m (2004)

Iraq
3.149 trillion cu m (2004)