SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a)
of the Securities Exchange Act of 1934 (Amendment No. __)


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Filed by a Party other than the Registrant [X]

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Preliminary Proxy Statement
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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
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Definitive Proxy Statement
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Definitive Additional Materials
[X]
Soliciting Material Pursuant to § 240.14a-12

SandRidge Energy, Inc.
(Name of Registrant as Specified In Its Charter)

CARL C. ICAHN
ICAHN PARTNERS LP
ICAHN PARTNERS MASTER FUND LP
ICAHN ENTERPRISES G.P. INC.
ICAHN ENTERPRISES HOLDINGS L.P.
IPH GP LLC
ICAHN CAPITAL L.P.
ICAHN ONSHORE LP
ICAHN OFFSHORE LP
BECKTON CORP.
HIGH RIVER LIMITED PARTNERSHIP
HOPPER INVESTMENTS LLC
BARBERRY CORP.
JONATHAN FRATES
NICHOLAS GRAZIANO
JOHN "JACK" LIPINSKI
BOB G. ALEXANDER
RANDOLPH C. READ
 (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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On April 16, 2018, Carl C. Icahn and affiliated entities filed an Amendment to their Schedule 13D relating to SandRidge Energy, Inc., a copy of which is filed herewith as Exhibit 1.

SECURITY HOLDERS ARE ADVISED TO READ THE PROXY STATEMENT AND OTHER DOCUMENTS RELATED TO THE SOLICITATION OF PROXIES BY CARL C. ICAHN AND HIS AFFILIATES FROM THE STOCKHOLDERS OF SANDRIDGE ENERGY, INC. FOR USE AT THE 2018 ANNUAL MEETING OF STOCKHOLDERS OF SANDRIDGE ENERGY, INC. WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION, INCLUDING INFORMATION RELATING TO THE PARTICIPANTS IN SUCH PROXY SOLICITATION. WHEN COMPLETED, A DEFINITIVE PROXY STATEMENT AND A FORM OF PROXY WILL BE MAILED TO STOCKHOLDERS OF SANDRIDGE ENERGY, INC. AND WILL ALSO BE AVAILABLE AT NO CHARGE AT THE SECURITIES AND EXCHANGE COMMISSION'S WEBSITE AT HTTP://WWW.SEC.GOV. INFORMATION RELATING TO THE PARTICIPANTS IN SUCH PROXY SOLICITATION IS CONTAINED BELOW. EXCEPT AS OTHERWISE DISCLOSED IN THIS SCHEDULE 14A, THE PARTICIPANTS HAVE NO INTEREST IN SANDRIDGE ENERGY, INC. OTHER THAN THROUGH THE BENEFICIAL OWNERSHIP OF SHARES OF COMMON STOCK, PAR VALUE $0.001 PER SHARE, OF SANDRIDGE ENERGY, INC. AS DISCLOSED BELOW.

PARTICIPANTS

The participants in the solicitation of proxies (the "Participants") from stockholders of SandRidge Energy, Inc. (the "Corporation") include the following: High River Limited Partnership ("High River"), Hopper Investments LLC ("Hopper"), Barberry Corp. ("Barberry"), Icahn Partners Master Fund LP ("Icahn Master"), Icahn Offshore LP ("Icahn Offshore"), Icahn Partners LP ("Icahn Partners"), Icahn Onshore LP ("Icahn Onshore"), Icahn Capital LP ("Icahn Capital"), IPH GP LLC ("IPH"), Icahn Enterprises Holdings L.P. ("Icahn Enterprises Holdings"), Icahn Enterprises G.P. Inc. ("Icahn Enterprises GP"), Beckton Corp. ("Beckton"), and Carl C. Icahn, a citizen of the United States of America.

The principal business address of each of (i) High River, Icahn Offshore, Icahn Partners, Icahn Master, Icahn Onshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP and Beckton is White Plains Plaza, 445 Hamilton Avenue - Suite 1210, White Plains, NY 10601, and (ii) Mr. Icahn, Barberry and Hopper is c/o Icahn Capital LP, 767 Fifth Avenue, 47th Floor, New York, NY 10153.

Icahn Partners, Icahn Master and High River (collectively, the "Icahn Parties") are entities controlled by Carl C. Icahn. Barberry is the sole member of Hopper, which is the general partner of High River. Icahn Offshore is the general partner of Icahn Master. Icahn Onshore is the general partner of Icahn Partners. Icahn Capital is the general partner of each of Icahn Offshore and Icahn Onshore. Icahn Enterprises Holdings is the sole member of IPH, which is the general partner of Icahn Capital. Beckton is the sole stockholder of Icahn Enterprises GP, which is the general partner of Icahn Enterprises Holdings. Carl C. Icahn is the sole stockholder of each of Barberry and Beckton. As such, Mr. Icahn is in a position indirectly to determine the investment and voting decisions made by each of the Icahn Parties. In addition, Mr. Icahn is the indirect holder of approximately 91.0% of the outstanding depositary units representing limited partnership interests in Icahn Enterprises L.P. ("Icahn Enterprises"). Icahn Enterprises GP is the general partner of Icahn Enterprises, which is the sole limited partner of Icahn Enterprises Holdings.

The Icahn Parties are deemed to beneficially own, in the aggregate, 4,818,832 shares of common stock, par value $0.001 per share, issued by SandRidge Energy, Inc. (the "Shares"), representing approximately 13.51% of the Corporation's outstanding Shares (based upon the 35,641,907 Shares stated to be outstanding as of February 15, 2018 by the Corporation in the Corporation's Annual Report on Form 10-K for the fiscal year ended December 31, 2017, filed with the Securities and Exchange Commission on February 22, 2018).

High River has sole voting power and sole dispositive power with regard to 963,767 Shares. Each of Hopper, Barberry and Mr. Icahn has shared voting power and shared dispositive power with regard to such Shares. Icahn Partners has sole voting power and sole dispositive power with regard to 2,287,095 Shares. Each of Icahn Onshore, Icahn Capital, IPH, Icahn Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn has shared voting power and shared dispositive power with regard to such Shares. Icahn Master has sole voting power and sole dispositive power with regard to 1,567,970 Shares. Each of Icahn Offshore, Icahn Capital, IPH, Icahn Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn has shared voting power and shared dispositive power with regard to such Shares.

Each of Hopper, Barberry and Mr. Icahn, by virtue of their relationships to High River, may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Securities Exchange Act of 1934, as amended, the "Act") the Shares which High River directly beneficially owns. Each of Hopper, Barberry and Mr. Icahn disclaims beneficial ownership of such Shares for all other purposes. Each of Icahn Offshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn, by virtue of their relationships to Icahn Master, may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the Shares which Icahn Master directly beneficially owns. Each of Icahn Offshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn disclaims beneficial ownership of such Shares for all other purposes. Each of Icahn Onshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn, by virtue of their relationships to Icahn Partners, may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the Shares which Icahn Partners directly beneficially owns. Each of Icahn Onshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr. Icahn disclaims beneficial ownership of such Shares for all other purposes.

In addition, the Participants may also include Jonathan Frates, Nicholas Graziano, John "Jack" Lipinski, Bob G. Alexander and Randolph C. Read. Mr. Frates is an employee of Icahn Enterprises and Mr. Graziano is an employee of Icahn Capital. From time to time, Messrs. Frates and Graziano may serve on the boards of directors of entities in which Mr. Icahn and/or his affiliates have an interest. In such situations where Mr. Icahn does not control such entities, Messrs. Frates and Graziano receive customary director compensation from such entities (which may include cash fees, equity awards, reimbursement of travel expenses, indemnification and the like). Messrs. Frates, Graziano, Lipinski, Alexander and Read do not own beneficially any Shares. Messrs. Lipinski, Alexander and Read are each party to an agreement pursuant to which Icahn Capital has agreed to pay certain fees to such individual and to indemnify such individual with respect to certain costs incurred by such individual in connection with the solicitation of proxies from stockholders of the Corporation. Messrs. Frates, Graziano, Lipinski, Alexander and Read will not otherwise receive any special compensation in connection with the solicitation of proxies from stockholders of the Corporation.

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