gets the oil aspect of the upgrade concode_field_sep PlantAspect mRenewable concode_elem_sep PlantAspect mFossil concode_elem_sep OilAspect mOil concode_elem_sep String mCode concode_elem_sep int mQuality concode_elem_sep PlantAspect mNuclear concode_elem_sep String mName concode_elem_sep OtherAspect mOther concode_field_sep void setName concode_elem_sep void setQuality concode_elem_sep String getName concode_elem_sep int getQuality concode_elem_sep PlantAspect getFossil concode_elem_sep void setCode concode_elem_sep PlantAspect getNuclear concode_elem_sep OtherAspect getOther concode_elem_sep String getCode concode_elem_sep PlantAspect getRenewable
OilAspect function ( ) { return mOil ; }