Genie Energy Ltd, through its subsidiaries, operates as a retail energy provider; and an oil and gas exploration company. Its segments are Genie Retail Energy (GRE) which is the key revenue generator, Genie Energy Services (GES), and Genie Oil and Gas (GOGAS). GRE owns and operates retail energy providers (REPs), including IDT Energy, Residents Energy, Town Square Energy, and Mirabito. Its REP businesses resell electricity and natural gas to residential and small business customers in the Eastern and Midwestern United States. GES designs, manufactures and distributes solar panels and also offers energy brokerage and advisory services. GOGAS is an oil and gas exploration company that owns an interest in a contracted drilling services operation and interest in Afek Oil and Gas (Afek).