Exhibit 32.2

Certification Pursuant to 18 U.S.C. Section 1350, as Adopted
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the annual report of Devon Energy Corporation (“Devon”) on Form 10-K for the period ended December 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Danny J. Heatly, Senior Vice President – Accounting and Chief Accounting Officer of Devon, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Devon.

     /s/ Danny J. Heatly  

Danny J. Heatly 

Senior Vice President – Accounting and
Chief Accounting Officer 

February 25, 2009