Genie Energy Ltd., through its subsidiaries, operates as a retail energy provider, and an oil and gas exploration company. The company operates through four segments: Genie Retail Energy (GRE); GRE International; Genie Energy Services; and Genie Oil and Gas, Inc. It resells electricity and natural gas to residential and small business customers primarily in the Eastern and Midwestern United States, as well as in the United Kingdom, Japan, and Finland. The company also engages in the provision of energy advisory and brokerage services; and solar panel manufacturing, and solar installation design and project management activities. In addition, it holds an 86.1% interest in the southern portion of the Golan Heights in Northern Israel, as well as owns an interest in a contracted drilling services operation. Genie Energy Ltd. is headquartered in Newark, New Jersey.