The move is part of Yuganskneftegaz's effort to collect about 1.8 billion euros ($2.1 billion) from Yukos as part of a Moscow court ruling.

In October, the company asked the Dutch court to freeze Yukos' shares in the Netherlands-based holding company Yukos Finance.

The Dutch company controls Yukos' foreign assets, including Lithuanian refiner Mazeikiu Nafta and Slovakian pipeline operator Transpetrol.

Yukos' lawyers said a Dutch court should not freeze the assets.

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