Turkey
300 million bbl (1 January 2008 est.)
Turkmenistan
600 million bbl (1 January 2008 est.)
Turks and Caicos Islands
0 bbl (1 January 2006 est.)
Uganda
0 bbl (1 January 2006 est.)
Ukraine
395 million bbl (1 January 2008 est.)
United Arab Emirates
97.8 billion bbl (1 January 2008 est.)
United Kingdom
3.6 billion bbl (1 January 2008 est.)
United States
20.97 billion bbl (1 January 2008 est.)
Uruguay
NA
Uzbekistan
594 million bbl (1 January 2008 est.)