Qatar and Oman are members of the Gulf Cooperation Council, GCC, which also groups Saudi Arabia, Kuwait, Bahrain and the United Arab Emirates (UAE).
Qatar and Oman are the most powerful members of the Gulf Cooperation Council.
( z1 have-org-role :ARG0 ( z2 and :op ( z3 country :name ( z4 name :op "Qatar" ) ) :op ( z5 country :name ( z6 name :op "Oman" ) ) ) :ARG1 ( z7 organization :name ( z8 name :op "Gulf" :op "Cooperation" :op "Council" ) ) :ARG2 ( z9 member :ARG1-of ( z10 have-degree :ARG2 ( z11 powerful :ARG1 z9 ) :ARG3 ( z12 most ) ) ) )