No, to my knowledge we only distribute the .mib inside of OCI, as I don't think we have a version number of the mib.
SNMP can do push or pull:
Push - a device sends traps - this is typically for alarm use cases
Pull - you can poll a device via SNMP to monitor it on an ongoing basis.
OCI's SNMP support is push only - all it can do is send traps.
You cannot poll OCI via SNMP.