-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, RJSE2CDD4aEn92Gnvtc1r4lKkmQIpaGdaZgH/EAUs6WNGmeJJpXJT1C/sMo6fHrJ vLUPRl+pVsk8tiS3g+fDeQ== 0000879575-06-000003.txt : 20060425 0000879575-06-000003.hdr.sgml : 20060425 20060425150309 ACCESSION NUMBER: 0000879575-06-000003 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20060424 FILED AS OF DATE: 20060425 DATE AS OF CHANGE: 20060425 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TERRA NITROGEN CO L P /DE CENTRAL INDEX KEY: 0000879575 STANDARD INDUSTRIAL CLASSIFICATION: AGRICULTURE CHEMICALS [2870] IRS NUMBER: 731389684 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: TERRA CENTRE 600 FOURTH STREET STREET 2: PO BOX 6000 CITY: SIOUX CITY STATE: IA ZIP: 51102-6000 BUSINESS PHONE: 7122771340 MAIL ADDRESS: STREET 1: TERRA CENTER 600 FOURTH STREET STREET 2: PO BOX 6000 CITY: SIOUX CITY STATE: IA ZIP: 51102-6000 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: GIESLER JOSEPH D CENTRAL INDEX KEY: 0001230237 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 033-43007 FILM NUMBER: 06777756 MAIL ADDRESS: STREET 1: TERRA INDUSTRIES INC STREET 2: 600 FOURTH STREET 5110 PO BOX 6000 CITY: SIOUX CITY STATE: IA ZIP: 51102-6000 3 1 edgar.xml PRIMARY DOCUMENT X0202 3 2006-04-24 0 0000879575 TERRA NITROGEN CO L P /DE TNH 0001230237 GIESLER JOSEPH D 600 FOURTH STREET P.O. BOX 6000 SIOUX CITY IA 51102-6000 0 1 0 0 Vice President Common Units 0 D Mark A. Kalafut, attorney-in-fact 2006-04-25 EX-24 2 geisler_poa.htm POWER OF ATTORNEY

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that I, Joseph D. Giesler, hereby constitute and appoint Mark A. Kalafut and Debra J. Bliven, and each of them, my true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution for me and in my name, place and stead, to sign any reports on Form 3 (Initial Statement of Beneficial Ownership of Securities), Form 4 (Statement of Changes in Beneficial Ownership of Securities) and Form 5 (Annual Statement of Beneficial Ownership of Securities) relating to transactions by me in Common Shares or other securities of Terra Nitrogen Company, L.P., and all amendments thereto, and to file the same, with the Securities and Exchange Commission and the appropriate securities exchange, granting unto said attorneys-in-fact and agents, and each of them, or their substitutes, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as I might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, and each of them, or their substitutes, may lawfully do or cause to be done by virtue hereof. This Power of Attorney shall be effective until such time as I deliver a written revocation thereof to the above-named attorneys-in-fact and agents.

Dated: April 24, 2006		/s/ Joseph D. Giesler

		Joseph D. Giesler

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