Ni-based superalloys are now being designed specifically for the AM process which attempt to confer resistance to processing induced defects while maintaining desirable  material properties such as high temperature strength and creep resistance. In addition to these properties, high temprature oxidation resistance must also be conferred in order to ensure the novel alloys can be employed in engineering compoenents. Motivated by this, we study here the early-stage high temperature oxidation of a wide variety of different Ni-based superalloys - some heritage and some novel. This set of compositions serves to develop a comprehensive dataset in order to inform further alloy design for additive manufacturing with an emphasis on high temperature oxidation.