Um ... can these animations be ported to Oblivion? Or, can they be used as they are ?
This cannot be done directly: MW and OB use different nif format.
However, this (animation transfer) can be easily done in Max. (minor differences in skeleton structure is not an obstacle: there several ways how to do that dependent on what you prefer to work with - CS biped or Max bones).
And the last but not the least: original animations cannot be transferred because this would be violation of authors' (BS) rights. In this particular case (custom animations) it is necessary to ask the author, Arcimaestro Anteres, for permission unless it would be allowed in the mod readme.
Arcimaestro Anteres's animations are fantastic (I love smith animation!!!)!
To "critics": please, not that MW skeleton is very simple (no twist bones like in OB, etc.). (Note that skeleton is only one of many MW animation problems.) Hence, it is just not possible in some cases to achieve smooth realistic animation without serious ugly mesh distortions. We have to accept a certain compromise elaborated by the author.