SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* FAIRFAX FINANCIAL HOLDINGS LTD/ CAN (Last) (First) (Middle) 95 WELLINGTON STREET WEST SUITE 800 (Street) TORONTO A6 M5J 2N7 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol SANDRIDGE ENERGY INC [ SD ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 04/07/2010
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $0.001 par value (?Common Shares?)	04/07/2010		P		130,000	A	$7.6943	6,803,600	I	See footnote(1)
Common Shares	04/16/2010		P		2,000,000	A	$7.2709	8,803,600	I	See footnote(1)
Common Shares	04/16/2010		P		1,400,000	A	$7.2345	10,203,600	I	See footnote(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* FAIRFAX FINANCIAL HOLDINGS LTD/ CAN (Last) (First) (Middle) 95 WELLINGTON STREET WEST SUITE 800 (Street) TORONTO A6 M5J 2N7 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* WATSA V PREM ET AL (Last) (First) (Middle) 95 WELLINGTON STREET WEST SUITE 800 (Street) TORONTO A6 M5J 2N7 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* 1109519 ONTARIO LTD (Last) (First) (Middle) 95 WELLINGTON STREET WEST SUITE 800 (Street) TORONTO A6 M5J 2N7 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SIXTY TWO INVESTMENT CO LTD (Last) (First) (Middle) 1600 CATHEDRAL PLACE 925 WEST GEORGIA ST. (Street) VANCOUVER A1 V6C 3L3 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* 810679 ONTARIO LTD (Last) (First) (Middle) 95 WELLINGTON STREET WEST SUITE 800 (Street) TORONTO A6 M5J 2N7 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* MARKEL INSURANCE CO OF CANADA (Last) (First) (Middle) 55 UNIVERSITY AVENUE SUITE 1500 (Street) TORONTO A6 M5J 2H7 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Federated Insurance CO of Canada (Last) (First) (Middle) 717 PORTAGE AVENUE (Street) WINNIPEG A2 R3C 3C9 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* COMMONWEALTH INSURANCE CO (Last) (First) (Middle) 595 BURRARD STREET, BENTALL TOWER III SUITE 1500, BOX 49115 (Street) VANCOUVER A1 V7X 1G4 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LOMBARD GENERAL INSURANCE CO OF CANADA (Last) (First) (Middle) 105 ADELAIDE STREET WEST 3RD FLOOR (Street) TORONTO A6 M5H 1P9 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ODYSSEY AMERICA REINSURANCE CORP (Last) (First) (Middle) 300 FIRST STAMFORD PLACE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Following the transactions reported herein, 277,000 Common Shares are held by V. Prem Watsa and the remaining Common Shares are held by subsidiaries of Fairfax Financial Holdings Limited, including, following the transactions reported herein, 413,000 Common Shares held by Markel Insurance Company of Canada, 238,000 Common Shares held by Federated Insurance Company of Canada, 645,000 Common Shares held by Commonwealth Insurance Company, 1,403,000 Common Shares held by Lombard General Insurance Company of Canada and 5,199,600 Common Shares held by Odyssey America Reinsurance Corporation.

	/s/ Paul Rivett, Vice President and Chief Legal Officer	04/19/2010
	/s/ V. Prem Watsa	04/19/2010
	/s/ V. Prem Watsa, President	04/19/2010
	/s/ V. Prem Watsa, President	04/19/2010
	/s/ V. Prem Watsa, President	04/19/2010
	/s/ Craig Pinnock, Director	04/19/2010
	/s/ Craig Pinnock, Director	04/19/2010
	/s/ Craig Pinnock, Director	04/19/2010
	/s/ Craig Pinnock, Director	04/19/2010
	/s/ Kirk M. Reische, Vice President	04/19/2010
	** Signature of Reporting Person	Date
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