It's a bit of a complicated and convoluted story/rumor.
Go on the ngp Stockhouse board and read the posts and the nr starting at the beginning of Sept. after they completed their pp.
http://www.stockhouse.com/bullboards/SymbolList.aspx?s=NGP&t=LIST
I am still trying to find a confirmation of the allegations involving Rick Rule & Katusa.
There was enough smoke there for me to get out of the place today. I could be wrong and if so I will be sorry as I had convinced myself that npg was a takeover target.