Oman Arab Bank (OAB) is a commercial bank based in Ruwi, Oman that provides personal, retail and commercial banking services. The bank was established in 1984 following the acquisition of Arab Bank's branches in the Sultanate. The firm offers current accounts, savings accounts, fixed deposit accounts and loans. OAB also provides merchant services, treasury management, investment banking, bancassurance and digital banking services. Oman Arab Bank operates as a subsidiary of Oman International Development and Investment and has $5.15 billion assets under management.