http://oblivion.nexusmods.com/mods/43100/

Description
Enhances Oblivion Realm with HD textures.

Installation
Extract the 7z file, and copy the data folder to overwrite your Oblivion\Data\ folder.

Credit
xxXEvandarXxx
I use some of xxXEvandarXxx's HiRes Oblivion Textures in this mod.