Exhibit 99.4









Consent
of Independent Registered Public Accounting Firm



| | Grant
                                                       Thornton LLP
        900,
        833 4th Ave SW 
        Calgary, AB
        T2P
        3T5


        T
        (403) 260-2500 
        F (403) 260-2571 
        www.GrantThornton.ca
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



To
the Board of Directors of Compton Petroleum Corporation



We
consent to the inclusion in this annual report on Form 40-F of:



| | ● | our
                                                                                                                              Independent
                                                                                                                              Auditor’s
                                                                                                                              Report
                                                                                                                              of
                                                                                                                              Registered
                                                                                                                              Public
                                                                                                                              Accounting
                                                                                                                              Firm
                                                                                                                              dated
                                                                                                                              March
                                                                                                                              7,
                                                                                                                              2012
                                                                                                                              on
                                                                                                                              the
                                                                                                                              consolidated
                                                                                                                              balance
                                                                                                                              sheets
                                                                                                                              of
                                                                                                                              Compton
                                                                                                                              Petroleum
                                                                                                                              Corporation
                                                                                                                              (the
                                                                                                                              “Company”)
                                                                                                                              as
                                                                                                                              at
                                                                                                                              December
                                                                                                                              31,
                                                                                                                              2011,
                                                                                                                              2010
                                                                                                                              and
                                                                                                                              January
                                                                                                                              1,
                                                                                                                              2010,
                                                                                                                              and
                                                                                                                              the
                                                                                                                              consolidated
                                                                                                                              statements
                                                                                                                              of
                                                                                                                              operations
                                                                                                                              and
                                                                                                                              comprehensive
                                                                                                                              earnings
                                                                                                                              (loss),
                                                                                                                              changes
                                                                                                                              in
                                                                                                                              equity
                                                                                                                              and
                                                                                                                              cash
                                                                                                                              flow
                                                                                                                              for
                                                                                                                              each
                                                                                                                              of
                                                                                                                              the
                                                                                                                              years
                                                                                                                              in
                                                                                                                              the
                                                                                                                              two
                                                                                                                              year
                                                                                                                              period
                                                                                                                              ended
                                                                                                                              December
                                                                                                                              31,
                                                                                                                              2011;
                                                                                                                              and
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ● | our
                                                                                                                              Independent
                                                                                                                              Auditor’s
                                                                                                                              Report
                                                                                                                              of
                                                                                                                              Registered
                                                                                                                              Public
                                                                                                                              Accounting
                                                                                                                              Firm
                                                                                                                              dated
                                                                                                                              March
                                                                                                                              7,
                                                                                                                              2012
                                                                                                                              on
                                                                                                                              the
                                                                                                                              effectiveness
                                                                                                                              of
                                                                                                                              internal
                                                                                                                              control
                                                                                                                              over
                                                                                                                              financial
                                                                                                                              reporting
                                                                                                                              as
                                                                                                                              at
                                                                                                                              December
                                                                                                                              31,
                                                                                                                              2011.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



each
of which is contained in this annual report on Form 40-F of the Company for the fiscal year ended December 31, 2011.



|Calgary,
    Canada | /s/
‘Grant Thornton LLP’ 
|------------------- | -------------------------
|                    |                          
|March
    7, 2012   | Chartered
    Accountants