SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Marcum R. Alan

(Last)

(First)

(Middle)

20 NORTH BROADWAY

(Street)

OKLAHOMA CITY

73102-8260

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/30/2008

3. Issuer Name and Ticker or Trading Symbol
DEVON ENERGY CORP/DE [ DVN ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP ADMINISTRATION

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	22,442	D
Common Stock	104	I	by Managed Account

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Incentive Stock Option (right to buy)	12/04/2001⁽¹⁾	12/04/2011	Common Stock	5,200	$17.425	D
Incentive Stock Option (right to buy)	12/02/2002⁽²⁾	12/02/2012	Common Stock	4,744	$23.045	D
Incentive Stock Option (right to buy)	11/29/2000⁽³⁾	11/29/2010	Common Stock	15,472	$23.85	D
Incentive Stock Option (right to buy)	12/12/2005⁽⁴⁾	12/11/2013	Common Stock	4,518	$66.39	D
Incentive Stock Option (right to buy)	12/12/2006⁽⁵⁾	12/11/2014	Common Stock	1,408	$71.01	D
Incentive Stock Option (right to buy)	12/10/2007⁽⁶⁾	12/09/2015	Common Stock	1,121	$89.15	D
Non-Qualified Stock Option (right to buy)	12/04/2001⁽¹⁾	12/04/2011	Common Stock	20,800	$17.425	D
Non-Qualified Stock Option (right to buy)	12/02/2002⁽²⁾	12/02/2012	Common Stock	21,256	$23.045	D
Non-Qualified Stock Option (right to buy)	11/29/2000⁽³⁾	11/29/2010	Common Stock	4,528	$25.85	D
Non-Qualified Stock Option (right to buy)	12/12/2005⁽⁴⁾	12/11/2013	Common Stock	5,382	$66.39	D
Non-Qualified Stock Option (right to buy)	12/12/2006⁽⁵⁾	12/11/2014	Common Stock	14,792	$71.01	D
Non-Qualified Stock Option (right to buy)	12/10/2007⁽⁶⁾	12/09/2015	Common Stock	15,779	$89.15	D

Explanation of Responses:

1. Stock Options to vest twenty percent on the 4th of December in each of the years 2001, 2002, 2003, 2004 and 2005, expiring December 4, 2011.

2. Stock Options to vest twenty percent on the 2nd day of December in each of the years 2002, 2003, 2004, 2005 and 2006, expiring December 2, 2012.

3. Stock Options to vest twenty percent on the 29th day of November in each of the years 2000, 2001, 2002, 2003 and 2004, expiring November 29, 2010.

4. Stock Options to vest twenty percent on the 12th day of December in each of the years 2005, 2006, 2007, 2008 and 2009, expiring December 11, 2013.

5. Stock Options to vest twenty percent on the 12th day of December in each of the years 2006, 2007, 2008, 2009 and 2010, expiring December 11, 2014.

6. Stock Options to vest twenty percent on the 10th day of December in each of the years 2007, 2008, 2009, 2010 and 2011, expiring December 9, 2015.

	By: Janice A. Dobbs For: R. Alan Marcum	07/01/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.