 WALL, N.J.--BUSINESS WIRE--New Jersey Resources NYSE: NJR announced its principal subsidiary New Jersey Natural Gas NJNG received approval from the New Jersey Board of Public Utilities to significantly expand its energy-efficiency offerings available through The SAVEGREEN Project SAVEGREEN. The program will further its commitment to sustainability and emissions reduction by helping customers lower their energy usage, save money and reduce their carbon footprint. NJNG is authorized to i 