Electricity costs per household will fall NIS 120 annually.
The license operator recommended returning the licenses because of the geological risk and expected difficulty in commercializing any gas that might be found.
The bond offering which will be used to replace bank debt, was made through a Peruvian company.
Gas production from the Tamar field rose 7% but the appreciation of the shekel meant revenue fell 0.3%, the Energy Ministry reports.
The newly merged gas production company announced a $300 million quarterly dividend.
The Israeli energy company only raised NIS 46 million from the public.
The campaign's goal is a 20% saving in electricity consumption by government companies.