No, Armenia does not have any proven reserves of oil, natural gas or other fossil fuels.
The country imports must of those energy resources from other countries, predominantly from Russia. Natural gas is imported to Armenia from Russia via a pipeline trough Georgia. There is also an Iran-Armenia gas pipeline that Armenia uses to import gas in exchange for electricity.
The biggest share of country’s electricity is produced using the Metsamor Nuclear power plant which is located 36 kilometers west of the capital Yerevan. Armenia also has numerous thermal, hydroelectric, solar and other power plants which fully cover nation’s energy demand.