China
16.1 billion bbl (2006 est.)
Colombia
1.282 billion bbl (2006 est.)
Congo, Democratic Republic of the
1.538 billion bbl (1 January 2002)
Congo, Republic of the
93.5 million bbl (1 January 2002)
Cote d'Ivoire
220 million bbl (2006 est.)
Croatia
93.6 million bbl (1 January 2002)
Cuba
259 million bbl (2006 est.)
Czech Republic
17.25 million bbl (1 January 2002)
Denmark
1.23 billion bbl (1 January 2002)
Ecuador
5.115 billion bbl (2006 est.)