A two-day symposium on investment opportunities in the Kingdom of Saudi Arabia, organized by the Saudi embassy in the Kingdom of Netherlands under the title "A gate to Saudi Arabia", wrapped up here today. A number of specialists, businessmen, Holland and European energy corporates executives took part in the event. The Manager of Saudi Aramco overseas Eng. Abdulhafeez Alnagashbandi presented investment opportunities worth $129 billion in the field of oil and gas in the Kingdom.