**Exhibit99.8**

**CERTIFICATIONS PURSUANT TO**

**RULE13a-14(a)**

I, Gregory S.Noval, certify that:

1.             I have reviewed thisAmendment No. 1 to the Annual Report on Form 40-F/A of Canadian Superior EnergyInc.;

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 myknowledge, the financial statements, and other financial information includedin this Annual Report, fairly present in all material respects the financialcondition, results of operations and cash flows of the issuer as of, and for,the periods presented in this Annual Report;

4.             The issuer’s othercertifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined inExchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer 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 issuer, including its consolidated subsidiaries, ismade known to us by others within those entities, particularly during theperiod in which this Annual Report is being prepared;

b)            designed such internalcontrol over financial reporting, or caused such internal control overfinancial reporting to be designed under our supervision, to provide reasonableassurance regarding the reliability of financial reporting and the preparationof financial statements for external purposes in accordance with generallyaccepted accounting principles;

c)             evaluated theeffectiveness of the issuer’s disclosure controls and procedures and presentedin this report our conclusions about the effectiveness of the disclosurecontrols and procedures, as of the end of the period covered by this reportbased on such evaluation; and

d)            disclosed in thisreport any change in the issuer’s internal control over financial reportingthat occurred during the period covered by the report that has materiallyaffected, or is reasonably likely to materially affect, the issuer’s internalcontrol over financial reporting; and

5.             The issuer’s othercertifying officer and I have disclosed, based on our most recent evaluation ofinternal control over financial reporting, to the issuer’s auditors and theaudit committee of the issuer’s board of directors (or persons performing theequivalent functions):

a)             all significantdeficiencies and material weaknesses in the design or operation of internalcontrol over financial reporting which are reasonably likely to adverselyaffect the issuer’s ability to record, process, summarize and report financialinformation; and

b)            any fraud, whether ornot material, that involves management or other employees who have a significantrole in the issuer’s internal control over financial reporting.

Dated:  May 16, 2007
| By:    | /s/ GREGORY S.  NOVAL |                    |
|--------|-----------------------|-------------------------|
|   | Name:                 | Gregory S. Noval        |
|   | Title:                | Chief Executive Officer |
|        |                       |                         |  |

 

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