It is possible to keep residency in 2 GCC countries, but on the exceptional basis. First condition is if you are transferred by the same company from one GCC country to another, i.e. sponsor in both your ID will be the same, you can keep both residencies. There are another couple of exceptions for keeping a dual residency. But this is not a common practice. So as it has been mentioned, only your PRO can give you the right answer, depending on your particular case.
KHATTAK, the fee of QAR2000 is applied ONLY when a dual residency is granted. But would it be granted or not is a big question mark.
It is possible to keep residency in 2 GCC countries, but on the exceptional basis. First condition is if you are transferred by the same company from one GCC country to another, i.e. sponsor in both your ID will be the same, you can keep both residencies. There are another couple of exceptions for keeping a dual residency. But this is not a common practice. So as it has been mentioned, only your PRO can give you the right answer, depending on your particular case.
KHATTAK, the fee of QAR2000 is applied ONLY when a dual residency is granted. But would it be granted or not is a big question mark.