GS0391: Gathering of natural gas, liquid natural gas, condensate, and oil, namely, the collection and storage for others of natural gas, liquid natural gas, condensate, and oil; transportation, storage and distribution of natural gas, liquid natural gas, condensate, and oil; consulting services in the field of energy materials gathering, namely, the collection, transportation, storage and distribution for others of natural gas, liquid natural gas, condensate, and oil
GS0401: Energy production services; treatment, processing and compression of natural gas, liquid natural gas, condensate, and oil; consulting services in the fields ofproduction, processing, compressing andtreating hydrocarbon fuels
GS0421: Engineering services; scientific research services