EXHIBIT 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350

     In connection with the Quarterly Report of Callon Petroleum Company (the “Company”) on Form 10-Q for the quarterly period ended June 30, 2007, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Fred L. Callon, Chief Executive Officer and Principal Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

     (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

     (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: August 6, 2007

/s/ Fred L. Callon  

Fred L. Callon, Chief Executive Officer  

(Principal Executive Officer) 

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