Utilize the input text as a context reference, choose the right relationship between Mashreq and Dubai from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Dubai Bank (K), the former Bank of Oman and later Mashreq Bank, has had a chequered history since it was established in 1982.

Answer: headquarters_location