What did you set java.library.path to? It has to be set to the full PATH because only java.library.path will be checked for DLLs and the DLLs on which they rely. If you don't want to add everything that is in PATH to java.library.path you can use the Dependency Walker (http://www.dependencywalker.com/) to determine which DLLs are required by ocijdbc10.dll.
I only added C:\Users\Phillip.OFFICE\dev\instantclient_10_2\ to java.library.path. I'm a concerned that something like dependencywalker won't show me what I need to know since Tomcat runs fine, so I believe my environment is fine, it's just something about JBoss' configuration that is messing it up.
Another piece of info is that I don't need java.library.path set for Tomcat, it uses PATH just fine. Which I suppose points to JBoss messing with the PATH variable.
You java.library.path is not set correctly. As it is currently set, it will pick up ocijdbc10.dll but none of the DLLs on which it depends. Please read my previous reply again.
If you do not pass java.library.path to JBoss AS, it too will use PATH. You will have to edit run.bat because that is where java.library.path is being set (that is because it tries to see if JBoss Native is installed).