WildHorse Resource Development, an oil and gas E&P backed by Natural Gas Partners operating in TX and LA, raised $413 million by offering 27.5 million shares at $15, below the range of $19 to $21. According to a free writing prospectus, Natural Gas Partners and two executives are buying $150 million of the IPO (36% of the deal); they had previously announced an intention to do so on Monday. WildHorse Resource Development plans to list on the NYSE under the symbol WRD. Barclays, BofA Merrill Lynch, BMO Capital Markets, Citi and Wells Fargo Securities acted as lead managers on the deal.