MOSCOW, May 26 (Reuters) - Russian President Vladimir

Putin on Monday signed a decree that gave Russian company

BurService permission to buy Russian assets owned by energy

solutions provider Aggreko, according to a document published on

the Russian government portal.

Moscow has steadily tightened restrictions on foreign asset

sales since the start of the conflict in Ukraine, with any

transactions involving the energy and finance sectors requiring

Putin's approval.

BurService and Aggreko did not immediately respond to

requests for comment. The decree did not specify the value of

the deal.

BurService was formed as a result of the departure from

Russia by oilfield services company Halliburton in 2022.

Halliburton in September 2022 said it had sold its

Russia operations to a Russia-based management team made up of

former Halliburton employees.

Halliburton no longer conducts operations in Russia and

BurService is an independent company.

(Writing by Alexander Marrow

Editing by Tomasz Janowski)