Table: petroleum_imports
Columns: col
importing_nation
10_3_bbl_day_2011
10_3_m_3_day_2011
10_3_bbl_day_2009
10_3_m_3_day_2009
10_3_bbl_day_2006
10_3_m_3_day_2006

Question: At what # does 10 3 bbl/day (2006) equal 5097?
SQL: SELECT MIN("col") FROM petroleum_imports WHERE "10_3_bbl_day_2006" = 5097

Question: In how many importing nations is 10 3 m 3 /day (2006) equivalent to 150? 
SQL: SELECT COUNT("importing_nation") FROM petroleum_imports WHERE "10_3_m_3_day_2006" = 150

Question: What is the highest number in 10 3 m 3 /day (2011) where 10 3 bbl/day (2006) is equivalent to 787?
SQL: SELECT MAX("10_3_m_3_day_2011") FROM petroleum_imports WHERE "10_3_bbl_day_2006" = 787