What are your specific career goals? If you want to work in the UK, get into the best school you can in the country. If you want to stay in oil & gas, the schools in Scotland are worth considering and I agree that Warwick and Cranfield could be good bets as well.
Otherwise, your school choice should reflect the location and the industry that you want to work in post-MBA. If you want to stay in the Middle East, study in the Middle East. There are some excellent MBA programs in Dubai and other places.
What are your specific career goals? If you want to work in the UK, get into the best school you can in the country. If you want to stay in oil & gas, the schools in Scotland are worth considering and I agree that Warwick and Cranfield could be good bets as well.
Otherwise, your school choice should reflect the location and the industry that you want to work in post-MBA. If you want to stay in the Middle East, study in the Middle East. There are some excellent MBA programs in Dubai and other places.