UPDATE 1-Dutch court voids YUKOS bankruptcy in Netherlands

(Adds details, background)

AMSTERDAM, Oct 31 (Reuters) - A Dutch court nullified on Wednesday all decisions taken by the Russian receiver of bankrupt oil firm YUKOS related to the company's Dutch assets.

The court said receiver Eduard Rebgun, who had replaced the management of Dutch-based YUKOS Finance BV and put all assets, worth about $2 billion, up for sale, had no right to do so and all his actions should be reversed.

"Russian bankruptcy of YUKOS was not in line with Dutch principles of law," the court said in its ruling, adding it could not recognise the bankruptcy or Rebgun's rights as a caretaker.

Russia said in August it had sold the assets of YUKOS Finance BV, which included a 49 percent stake in Slovak pipeline operator Transpetrol. YUKOS Finance also had about $1.5 billion in cash.

YUKOS, once Russia's largest oil producer, was founded by Mikhail Khodorkovsky and declared bankrupt after Russia raised huge back-tax demands that it was unable to settle. Khodorkovsky is now serving an eight-year prison term in Siberia on charges of tax evasion.

Russian state-controlled Rosneft became the country's largest oil producer and refiner following a string of state-forced auctions of YUKOS assets.

Former YUKOS owners say its bankruptcy was Kremlin revenge on Khodorkovsky for his political ambitions and criticism of the government.

The Dutch court said on Wednesday YUKOS was denied a fair trial to establish how much back tax it had to pay to the Russian government.