Show the headquarters that have both companies in banking industry and companies in oil and gas industry.
SELECT Headquarters FROM company WHERE Industry  =  "Banking" INTERSECT SELECT Headquarters FROM company WHERE Industry  =  "Oil and gas"
SELECT Headquarters FROM company WHERE Industry  =  "Banking" INTERSECT SELECT Headquarters FROM company WHERE Industry  =  "Oil and gas"
[{'Headquarters': 'China'}, {'Headquarters': 'UK'}, {'Headquarters': 'USA'}]