Energy brokerage services, namely, facilitating the buying, selling, and trading of energy and energy capacity for future delivery, in the field of all energy related financial products including, but not limited to, natural gas, crude oil, electricity, coal, weather, and BTU equivalents, which services are rendered to banks, brokerage houses, natural gas pipeline companies, utilities, energy companies and energy funds; and information services relating to the energy options markets and the energy markets themselves