Entity information:

• Entity registrant name: TERRA NITROGEN CO L P /DE
• CIK: 0000879575
• SEC filing page: http://www.sec.gov/Archives/edgar/data/879575/000087957518000006/0000879575-18-000006-index.htm
• XBRL Instance: http://www.sec.gov/Archives/edgar/data/879575/000087957518000006/tnh-20171231.xml
• XBRL Cloud Viewer: https://edgardashboard.xbrlcloud.com/flex/viewer/XBRLViewer.html#instance=http://www.sec.gov/Archives/edgar/data/879575/000087957518000006/tnh-20171231.xml
• EDGAR Dashboard: https://edgardashboard.xbrlcloud.com/edgar-dashboard/?cik=0000879575
• Generator: Workiva (WebFilings)
• Total assets: 403,900,000
• Income tax expense (benefit):
• Found reconcilation from statutory to effective rates: False
• Found income tax policy: Coming soon!

---