Fitch international rating agency revised on Tuesday outlooks for three major Russian companies, including energy giant Gazprom, from positive to stable.

The outlooks were revised for Gazprom, hydropower operator RusHydro and aircraft manufacturer Sukhoi. Their long-term foreign currency ratings were affirmed at ‘BBB’, ‘BB+’ and ‘BB’ respectively.

“The rating actions follow Fitch's revision of the Russian Federation's Outlook to Stable from Positive and the affirmation of its Long-term foreign and local currency Issuer Default Ratings (IDRs) at 'BBB' on 16 January 2012,” the agency said in a press release.

Fitch also affirmed the long-term foreign currency rating of the state-run Russian Railways (RZhD) and its stable outlook.