Russia’s Gazprom PJSC said it has halted gas flows to Poland and Bulgaria and will keep the supplies turned off until the two countries agree to Moscow’s demand to pay for the crucial fuel in rubles.
On the edge of a small Bulgarian town on the southern bank of the Danube River lies a relic from communism with eerie echoes of one of the Soviet era’s most infamous places.
Bulgaria and Serbia have signed a memorandum of understanding to work together for the construction of a natural gas pipeline.
Bulgaria and Romania have opened a new natural gas pipeline as part of the region's effort to reduce dependence on Russian gas.
Prosecutors in Bulgaria have charge two former directors of the state electricity firm NEK with causing financial damage by signing a nuclear deal which could cost business more than $86million.
Bulgaria 's anti-monopoly commission said six oil companies operating on the retail fuel market have allegedly been involved in cartel agreements on prices.
Bulgaria's anti-monopoly watchdog said it had raided the offices of Eco Petroleum and Shell Bulgaria as part of an investigation into possible cartel agreements.
Fuel produced by IS (Islamic State) is allegedly being sold at gas stations in Bulgaria.
Shell has agreed a deal with the Bulgarian government to explore for oil and gas in an offshore block in the Black Sea in a bid to end its almost total dependence on Russian natural gas.
Oil major Shell has been picked by Bulgaria to complete oil and gas exploration off its Black Sea coast. According to reports, the country plans to sign a contract by the end of next month as the region looks to lower its reliance on imports from Russia. In April the Balkan country opened tenders for two offshore blocs, Silistar and Teres.
French oil firm Total said on Monday it was on track to start drilling for oil and gas at an exploration site off Bulgaria's Black Sea coast early next year. Total, an operator of the offshore Han Asparuh 1-21 block along with OMV and Spain's Repsol, had postponed drilling there due to the fall in oil prices.