The company that owns the Brent field is headquartered in what country?
Brent oilfield:  The field operated by Shell UK Limited was once one of the most productive parts of the UK's offshore assets but has reached the stage where production is no longer economically viable. Royal Dutch Shell: Royal Dutch Shell plc (, ), commonly known as Shell, is a British–Dutch multinational oil and gas company headquartered in the Netherlands and incorporated in the United Kingdom.
the Netherlands