The Oath of Black Blood is a compilation album by the Finnish black metal band Beherit. The album is not a separate recording, but a compilation of the band's demo Demonomancy and EP Dawn of Satan's Millennium.
"The Oath of Black Blood" is not a new recording but a compilation of two previous releases by the Finnish black metal band Beherit: "Demonomancy" (demo) and "Dawn of Satan's Millennium" (EP).