The presentation will take place on Wednesday , September 16 at 10 : 15 AM EDT and will be webcast live and archived for 30 days on the partnership 's website in the Investors section at www.nrplp.com or at http : / / wsw.com / webcast / naptp2 / nrp / . A copy of the slide presentation may be accessed on NRP 's website under the Investor Section ( www.nrplp.com ) .