[CentOS] mapper device perms on reboot

How can I get the mapper device permissions set on reboot?

When I attempted to try this...

# cat /etc/udev/permissions.d/50-udev.permissions | grep mapper
mapper/mpath*:oracle:dba:0660

But it did not seem to work...

# ls -l /dev/mapper/mpath*
brw-rw----  1 root disk 253, 2 Feb 26 20:56 /dev/mapper/mpath0
brw-rw----  1 root disk 253, 5 Feb 26 20:56 /dev/mapper/mpath0p1
brw-rw----  1 root disk 253, 3 Feb 26 20:56 /dev/mapper/mpath1
brw-rw----  1 root disk 253, 4 Feb 26 20:56 /dev/mapper/mpath1p1

Am I doing something wrong?  Is there another way to do this?

Thanks,
Scott