BRUSSELS, Nov. 20 ??“ Ukraine, with its vast natural gas and oil pipelines and storage tanks, should become an active member of European Union??™s energy treaty, a top security advisor to President Viktor Yushchenko said Monday.

???We are interested in getting a full membership in the Energy Community Treaty,??? Vitaliy Hayduk, the secretary of the National Security and Defense Council, said. ???We view our [oil and gas] transit system as an integral part of the common European energy market.???