Neither. Yes KMI hold shares of KMP but I do not believe that they are selling them. On the other hand, KMP issues new units but half the proceeds do not go to the GP. You must have been reading Wulff's faulty analysis. In fact, KMP issues units to KMR and then KMR does the secondary offerings.
Sure, go to Mcdep.com. Then once at the webpage, go to stock ideas and click on the KMI button. About 15 articles will pop up from various dates. Wulff used to work for Icahn, Getty and T. Boone Pickens so beware. Also note, their is some speculation(mostly due to me but others have chimed in and agree that Wulff has some bone to pick with Kinder). My advice is start with the December issue and work your way forward.