user: Question: Where is Exxon Mobil, an Oil and gas corporation, headquartered?
Columns: ['Rank', 'Name', 'Headquarters', 'Primary industry', 'Market value ( USD million)']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Exxon Mobil', 'United States', 'Oil and gas', 446943.0]
SQL:

assistant: SELECT "Headquarters" FROM "Table" WHERE "Primary industry" = 'Oil and gas' AND "Name" = 'Exxon Mobil';