Ah, I resolved it. Looks like my cron jobs may have never ran. So I ran it manually.
I dumped myself into the apache user:
su -s /bin/bash apache
then ran the cron job script, which took about 30 minutes or so.
php -f /var/www/html/owncloud/cron.php
I then added it to crontab for apache:
crontab -e -u apache
*/15 * * * * php -f /var/www/html/owncloud/cron.php