**Exhibit 99.6**

 

**CERTIFICATIONSPURSUANT TO**

**RULE 13a-14(a)**

 

I, Gregory S. Noval, certify that:

 

1.                                       I have reviewedthis Annual Report on Form 40-F of Canadian Superior Energy Inc.;

 

2.                                       Based on myknowledge, this Annual Report does not contain any untrue statement of amaterial fact or omit to state a material fact necessary to make the statementsmade, in light of the circumstances under which such statements were made, notmisleading with respect to the period covered by this Annual Report;

 

3.                                       Based on my knowledge,the financial statements, and other financial information included in thisAnnual Report, fairly present in all material respects the financial condition,results of operations and cash flows of the Registrant as of, and for, theperiods presented in this Annual Report;

 

4.                                       The Registrant’sother certifying officer and I am responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) for the Registrant and have:

 

a)                                      designed suchdisclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervision, to ensure that materialinformation relating to the Registrant, including its consolidatedsubsidiaries, is made known to us by others within those entities, particularlyduring the period in which this Annual Report is being prepared;

 

b)                                     evaluated theeffectiveness of the Registrant’s disclosure controls and procedures andpresented in this Annual Report our conclusions about the effectiveness of thedisclosure controls and procedures, as of the end of the period covered by thisreport based on such evaluation; and

 

c)                                      disclosed in thisAnnual Report any change in the Registrant’s internal control over financialreporting that occurred during the period covered by the Annual Report that hasmaterially affected, or is reasonably likely to materially affect, theRegistrant’s internal control over financial reporting; and

 

5.                                       The Registrant’sother certifying officer and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the Registrant’sauditors and the audit committee of the Registrant’s board of directors (orpersons performing the equivalent functions):

 

a)                                      all significant deficienciesand material weaknesses in the design or operation of internal control overfinancial reporting which are reasonably likely to adversely affect theRegistrant’s ability to record, process, summarize and report financialinformation; and

 

b)                                     any fraud, whetheror not material, that involves management or other employees who have asignificant role in the Registrant’s internal control over financial reporting.

 

Dated:  March 31, 2006

 
| By:    | /s/ GREGORY  S. NOVAL |                                   |
|--------|-----------------------|----------------------------------------|
|   | Name:                 | Gregory S. Noval                       |
|   | Title:                | President  and Chief Executive Officer |
|        |                       |                                        |  |

 

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