EXHIBIT 3.16
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[GRAPHIC OMITTED]
Industry Canada Industrie Canada
CERTIFICATE OF AMENDMENT CERTIFICAT DE MODIFICATION
CANADA BUSINESS CORPORATIONS ACT LOI CANADIENNE SUR LES SOCIETES PAR ACTIONS
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NEXEN INC. 427706-6
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Name of corporation Corporation number
Denomination de la societe Numero de la societe
I hereby certify that the articles Je certifie que les statuts de la
of the above-named corporation were societe susmentionnee ont ete modifies:
amended:
[_] a) en vertu de 1'article 13 de la LOI
a) under section 13 of the CANADA CANADIENNE SUR LES SOCIETES PAR
BUSINESS CORPORATIONS ACT in ACTIONS, conformement a 1'avis
accordance with the attached ci-joint;
notice;
[_] b) en vertu de 1'article 27 de la LOI
b) under section 27 of the CANADA CANADIENNE SUR LES SOCIETES PAR
BUSINESS CORPORATIONS ACT as set ACTIONS, tel qu'il est indique dans
out in the attached articles of les clauses modificatrices ci-jointes
amendment designating a series of designant une serie d'actions;
shares;
[X] c) en vertu de 1'article 179 de la LOI
c) under section 179 of the CANADA CANADIENNE SUR LES SOCIETES PAR
BUSINESS CORPORATIONS ACT as set ACTIONS, tel qu'il est indique dans
out in the attached articles of les clauses modificatrices ci-jointes;
amendment;
[_] d) en vertu de 1'article 191 de la LOI
d) under section 191 of the CANADA CANADIENNE SUR LES SOCIETES PAR
BUSINESS CORPORATIONS ACT as set ACTIONS, tel qu'il est indique dans
out in the attached articles of les clauses de reorganisation
reorganization; ci-jointes;
/s/ Richard G. Shaw April 26, 2007 / le 26 avril 2007
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Richard G. Shaw Date of Amendment - Date de modification
Director - Directeur
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[GRAPHIC Industry Canada Industrie Canada FORM 4 FORMULAIRE 4
OMITTED] ARTICLES OF AMENDMENT CLAUSES MODIFICATRICES
Canada Business Loi canadienne sur les (SECTIONS 27 OR 177) (ARTICLES 27 OU 177)
Corporations Act societes par actions
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1 - Name of the Corporation - Denomination sociale de la societe 2 - Corporation No. - N(degree) de la societe
NEXEN INC. 427706-6
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3 - The articles of the above-named corporation are amended as follows: Les statuts de la s societe mentionnee cl-dessus
sont modifies de la facon suivante:
PURSUANT TO SECTION 173(1)(H) OF THE CANADA BUSINESS CORPORATIONS ACT, ALL OF THE ISSUED AND OUTSTANDING COMMON SHARES OF THE
CORPORATION SHALL BE DIVIDED ON THE BASIS OF TWO (2) COMMON SHARES FOR ONE (1) COMMON SHARE HELD.
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Signature Printed Name - Nom en lettres moulees 4 - Capacity of - En qualite de 5 - Tel No. - N(degree) de tel.
/s/ Sylvia L. Groves Sylvia L. Groves Assistant Secretary (403) 699-5291
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FOR DEPARTMENTAL USE ONLY - A L'USAGE DU MINISTERE SEULEMENT
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