drwxrwxr-x+   2 myuser  another_user   512 Nov 20  2013 foobar

[myuser@hosting_server]$ getfacl foobar
# file: foobar/
# owner: myuser
# group: another_user
user::rwx
group::rwx
mask::rwx
other::r-x

setfacl -b foobar