(BSM) raised $450 million in an initial public offering (IPO) on Friday, May 1st 2015. The company issued 22,500,000 shares at $19.00-$21.00 per share. Barclays, BofA Merrill Lynch, Citigroup, Credit Suisse and Wells Fargo Securities served as the underwriters for the IPO and J.P. Morgan, Morgan Stanley, Raymond James, Scotia Howard Weil and Simmons & Company International were co-managers.