It's literally in the first sentence of the article: between 2006 and 2011. The initiative ran from 2006-2011. Operation Wide Receiver was the first operation that ran 2006-2008. Operation Fast & Furious was a subset that ran 2009-2011.
This information is readily seen by anyone who actually clicks the link.
Regardless, the facts are not political no matter how much you may want to make them. The initiative began under the Bush admin and continued under Obama. Arguably, neither had much to do with it as it was mostly the work of the ATF and its leadership.