Check this link:
http://www.dnrd.ae/DNRD/Transactions/Visitors/Visitors%20Services#C98

Passengers entry – expatriates living in GCC countries.

This involves expatriates living in GCC countries and who are permitted to enter UAE territories (Engineer, Doctor, Accountant,...etc)

Required Documents:
•Original passport or e-gate card
•Valid residence permit (as appearing on the passport) and issued by competent authorities in GCC countries

Fees & Collection:
AED 100

Good Luck