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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1349436	Sandridge Energy Inc	SD	Crude Petroleum & Natural Gas (1311)	208084793

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
915191	Can Ltd/ Holdings Financial Fairfax	95 Wellington Street West Suite 800 Toronto A6 M5J 2N7	No	No	Yes	No
938869	Al Et Prem V Watsa	95 Wellington Street West Suite 800 Toronto A6 M5J 2N7	No	No	Yes	No
1217251	Sixty Two Investment Co Ltd	1600 Cathedral Place 925 West Georgia St. Vancouver A1 V6C 3L3	No	No	Yes	No
1243947	Odyssey America Reinsurance Corp	300 First Stamford Place Stamford CT 06902	No	No	Yes	No
1275986	Ltd Ontario 810679	95 Wellington Street West Suite 800 Toronto A6 M5J 2N7	No	No	Yes	No
1275993	Ltd Ontario 1109519	95 Wellington Street West Suite 800 Toronto A6 M5J 2N7	No	No	Yes	No
1276007	Markel Insurance Co Of Canada	55 University Avenue Suite 1500 Toronto A6 M5J 2H7	No	No	Yes	No
1276008	Lombard General Insurance Co Of Canada	105 Adelaide Street West 3Rd Floor Toronto A6 M5H 1P9	No	No	Yes	No
1276011	Commonwealth Insurance Co	595 Burrard Street, Bentall Tower Iii Suite 1500, Box 49115 Vancouver A1 V7X 1G4	No	No	Yes	No
1432008	Federated Insurance Co Of Canada	717 Portage Avenue Winnipeg A2 R3C 3C9	No	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock, $0.001 Par Value (?Common Shares?)	Acquisiton	2010-04-07	130,000	$7.69	6,803,600	No	4	P	Indirect	See footnote
Common Shares	Acquisiton	2010-04-16	2,000,000	$7.27	8,803,600	No	4	P	Indirect	See footnote
Common Shares	Acquisiton	2010-04-16	1,400,000	$7.23	10,203,600	No	4	P	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	P	Indirect	See footnote

Footnotes

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.