business finance procurement services of securities and other financial instruments; financial advisory services; financial analysis and consultation; real estate procurement for others, namely, purchase of oil and natural gas leaseholds for others; financial investment in the field of energy technologies; financial investing in and providing loan financing for minority enterprises in the energy and telecommunications fields; electricity and gas brokerage; brokerage services in the field of telecommunications air time; brokerage in the field of gas commodities; investment brokerage in the field of electricity related financial and derivative instruments; investment advisory services; and electricity brokerage, namely, the brokerage of electric power purchased from electric utilities and from other electric power producers, suppliers or sources for transfer to others; energy hedging; prepaid preventative maintenance service plans for home appliances and electronic and heating and air conditioning systems; underwriting warranty programs for customers in the field of home appliances, home electronics, heating and air conditioning systems; discount brokerage of goods and services relating to home and homeowners