gics global industry classification standard effective after close of business us est friday april 28 2006 red indicates name definition or structure changes 10 energy 1010 101010 equipment & services 10101010 oil gas drilling contractors owners rigs that contract their for wells 10101020 manufacturers including and providers supplies to companies involved in the evaluation completion 101020 consumable fuels 10102010 integrated engaged exploration production as well at least one other significant activity either refining marketing transportation chemicals 10102020 not classified elsewhere 10102030 refined products independent power producers traders sub industries 10102040 storage