In the capital of Transnistria, a Kremlin-backed microstate sandwiched between Moldova and Ukraine, the festive New Year’s lights have gone dark ahead of schedule. This separatist sliver of Moldova will run out of energy in three weeks,

Every time planned electrical outages are imposed on his village in southern Moldova, 73-year-old retiree Vasili Donici passes the time solving crosswords and puzzles in a room he illuminates with a small gas lamp.

The U.S. Treasury imposed sanctions on Gazprom Neft and Surgutneftegas, which explore for, produce and sell oil as well as 183 vessels that have shipped Russian oil, many of which are in the so-called shadow fleet of aging tankers operated by non-Western companies. The sanctions also include networks that trade the petroleum.