D

business management assistance in the fields of energy, natural gas, electricity, utilities, oil, [ natural gas liquids, ] and asset management; business information services in the fields of energy, natural gas, electricity, utilities, oil, [ natural gas liquids, ] and asset management; business consultation and business research in the fields of energy, natural gas, electricity, utilities, oil, [ natural gas liquids, ] and asset management

construction, maintenance and repair services in the field of utilities

public utility services, namely, transportation by pipe, truck and rail, gathering, storage, and distribution of natural gas, [ natural gas liquids, ] and liquefied petroleum products, distribution and transmission of electricity; providing utility information in the fields of energy, natural gas and electricity by means of computer networks

processing natural gas, [ natural gas liquids, ] and liquefied petroleum products; and generation of electricity

engineering, design for others and consulting services in the field of utilities; engineering services; consultation and research in the fields of utilities and energy technology; residential and commercial energy management services