I have to say I still find it exceptionally hard to believe there are 2.000.000 native Occitan speakers, so I looked more closely at the entry provided. I note that the vast majority of these "native speakers" (1.3M, follow the link from the Occitan page) are listed as Auvergnat speakers.

And what is the population of Auvergne? 1.3M, most of them not over the age of 65.

There is no way on earth that all of Auvergne speaks Occitan. In fact, of all the regions of France outside of PACA and Ile de France, Auvergne is a place I know well (Haute Loire, Puy-de-dome, Clermont, et c.), and I have not once heard Auvergnat spoken, so clearly not everyone is a native speaker there.

So, the wikipedia entry is, at least on this account, clearly not credible.

The Hun is always either at your throat or at your feet. Winston Churchill