Check it here http://www.rop.gov.om/english/dg_pr_visas_agcc.asp
If the wife is under husband's sponsorship most likely both of you need to travel together. Husband's GCC visa should be in the list of allowed professions.
Check it here http://www.rop.gov.om/english/dg_pr_visas_agcc.asp
If the wife is under husband's sponsorship most likely both of you need to travel together. Husband's GCC visa should be in the list of allowed professions.