PermRock Royalty Trust, a trust formed by NGP's Boaz Energy to own Permian Basin royalty interests, raised $106 million by offering 6.3 million shares at $17, below the range of $19 to $21. PermRock Royalty Trust plans to list on the NYSE under the symbol PRT. Wells Fargo Securities, Goldman Sachs, UBS Investment Bank, Deutsche Bank, Jefferies, Stifel and Oppenheimer & Co. acted as lead managers on the deal.