Samoa
0 bbl (1 January 2006 est.)
Sao Tome and Principe
0 bbl (1 January 2006 est.)
Saudi Arabia
266.8 billion bbl (1 January 2008 est.)
Senegal
0 bbl (1 January 2006 est.)
Serbia
77.5 million bbl (1 January 2008 est.)
Seychelles
0 bbl (1 January 2006)
Sierra Leone
0 bbl (1 January 2006 est.)
Singapore
0 bbl (1 January 2006 est.)
Slovakia
9 million bbl (1 January 2008 est.)
Slovenia
0 bbl (1 January 2006 est.)