Zakarpatgaz JSC has been transferred under state control, Naftogaz has said on its website.
This is the 19th gas distribution company integrated into the Group since the beginning of 2023.
Zakarpatgaz serves 278,000 households and more than 4,000 legal entities.
Naftogaz noted that tariffs, personal accounts and payment details remain unchanged for residents of Transcarpathian Region.
Last month Chernihivgaz came under state control, and before that Volyngaz.
In the summer, the SBU served suspicion notices to the board chairmen of Volyngaz, Kryvorizhgaz and Chernihivgaz, previously associated with tycoon Dmytro Firtash.