Thanks Mark for going back to 2012. Perhaps the flooding of the mine (unstable rock conditions) helped the mining of the PRB royalty zones for them to exceed the target. Anyhow, $4M is a good sum to have around.
One potential option would be for AEM to advance this $4M for PRB use to acquire the claims owned by the lumber folks, if there is a need for it from now until December 2014?
goldhunter