Did you look at the SDS? No on here (and really no one else) will be able to or will provide that to you. ExxonMobil does not outwardly disclose the base stock composition of their products. They are, however, one of the most transparent about which approvals a product has or does not have.
it's not the SDS that provdes that kind of info but the PDS, and it just reports a generic "advanced synthetic technology", no mention about eventual group beloging...The oil carries the approvals, licenses and ACEA sequences that are listed on the container. A fully-formulated motor oil isn’t defined by one attribute. As much as you seem to wish to do so there’s no real indication that this oil is any better, or worse than the Ravenol product.