Claim: Overgas Inc. (1991) is the biggest private gas company that search for oil and gas near the Provadia in Bulgaria and is currently managed by Sasho Dontchev.
Evidence: Overgas Inc. AD is the biggest private gas company in Bulgaria. In partnership with the British-based JKX Oil & Gas and with the Bulgaria-based Balkan Explorers the company search for oil and gas near the Provadia. 1991 Its executive director is Sasho Dontchev.