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

OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5

1. Name and Address of Reporting Person* CHANG WAYNE (Last) (First) (Middle) 123 ROBERT S. KERR AVENUE (Street) OKLAHOMA CITY OK 73102-6406 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 01/09/2009	3. Issuer Name and Ticker or Trading Symbol SANDRIDGE ENERGY INC [ SD ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) SVP-Midstream	5. If Amendment, Date of Original Filed (Month/Day/Year) 01/13/2009
			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	35,086(1)	D
Common Stock	904	I	by 401(k)

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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 3,750 shares of Restricted Stock granted February 28, 2007 which shall vest thirty-three percent on the 28th day of February of each of 2009, 2010 and 2011; 2,250 shares of Restricted Stock granted July 11, 2007 which shall vest thirty-three percent on the 11th day of July of each years 2009, 2010 and 2011; 4,000 shares of Restricted Stock granted January 11, 2008 which vest twenty-five percent on the 11th day of January of each of 2009, 2010, 2011and 2012; 5,000 shares of Restricted Stock granted July 11, 2008 which shall vest twenty-five percent on the 11th day of July of each of 2009, 2010, 2011 and 2012; 5,000 shares of Restricted Stock granted October 7, 2008 which shall vest twenty-five percent on the 7th day of October of each of 2009, 2010, 2011 and 2012; and 10,000 shares of Restricted Stock granted January 9, 2009, which shall vest twenty-five percent on the 9th day of January of each of 2010, 2011, 2012 and 2013.

	By: Gaye A. Wilkerson, Power of Attorney	01/26/2009
	** 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.