Here's that comment from PFW
We also hear the Texans should fare well in terms of compensatory draft picks, what with Mario Williams and Joel Dreesen both producing in Buffalo and Denver, respectively, and the Texans not depending a lot on free agents this past season. It shouldn't come as a surprise to see the Texans awarded the highest compensatory pick possible (a third-rounder), we hear.
The Texans will certainly receive the top compensatory pick (#95 overall). But that is based solely on losing Mario. The compensation for Dreessen will be a late round pick (likely a 6th).