MOSCOW, March 11 (Reuters) - A contractor at Russia's

Sakhalin 1 oil and gas project has filed a lawsuit to Moscow

Arbitration Court, seeking damages of 944 million roubles ($10

million) from U.S. Parker Drilling Management Services, court

documents showed on Tuesday.

Details have not been disclosed.

The contractor Sakhalin Drilling Services (SDS) provided its

services to Sakhalin 1, operated by U.S. major ExxonMobiil

until October 2022.

Before September 2022, SDS worked as part of the Parker

Drilling Group. SDS was known as Parker Far East Drilling

Services LLC before September 2022.

In 2022, Exxon took a $4.6 billion impairment charge for

exiting the development in the Pacific island of Sakhalin, its

largest investment in Russia, after the start of what Moscow has

called a special military operation in Ukraine.