SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 7)*

Sandridge Energy, Inc.

(Name of Issuer)

common stock, par value $0.001 per share

(Title of Class of Securities)

80007P869

(CUSIP Number)

Jesse Lynn, Esq.

Icahn Capital LP

767 Fifth Avenue, 47^th Floor

New York, New York 10153

(212) 702-4300

(Name, Address and Telephone Number of Person Authorized to

Receive Notices and Communications)

April 23, 2018

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Section 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box / /.

NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d‑7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

The Schedule 13D filed with the Securities and Exchange Commission on November 22, 2017, as previously amended (the "Schedule 13D"), by High River Limited Partnership, Hopper Investments LLC, Barberry Corp., Icahn Partners Master Fund LP, Icahn Offshore LP, Icahn Partners LP, Icahn Onshore LP, Icahn Capital LP, IPH GP LLC, Icahn Enterprises Holdings L.P., Icahn Enterprises G.P. Inc., Beckton Corp. and Carl C. Icahn (collectively, the "Reporting Persons"), with respect to the shares of common stock, par value $0.001 per share ("Shares"), of Sandridge Energy, Inc. (the "Issuer"), is hereby further amended to furnish the additional information set forth herein. All capitalized terms contained herein but not otherwise defined shall have the meanings ascribed to such terms in the Schedule 13D.

Item 4.  Purpose of Transaction

Item 4 of the Schedule 13D is hereby amended by adding the following paragraphs at the end thereof:

On April 23, 2018, the Reporting Persons sent a letter to the Issuer demanding, pursuant to Section 220 of the Delaware General Corporation Law, the right to inspect certain books and records (including stockholder list materials) of the Issuer, a copy of which is filed herewith as an exhibit and incorporated herein by reference.

SECURITY HOLDERS ARE ADVISED TO READ THE PROXY STATEMENT AND OTHER DOCUMENTS RELATED TO THE SOLICITATION OF PROXIES BY CARL ICAHN AND HIS AFFILIATES FROM THE STOCKHOLDERS OF SANDRIDGE ENERGY, INC. IN CONNECTION WITH THE 2018 ANNUAL MEETING OF STOCKHOLDERS OF SANDRIDGE ENERGY, INC. (THE "ANNUAL MEETING") 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 RELATED TO THE ANNUAL MEETING 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 IN THE SCHEDULE 14A FILED BY CARL ICAHN AND HIS AFFILIATES WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 16, 2018.

Item 7.  Material to be Filed as Exhibits

1.	Demand pursuant to Section 220 of the Delaware General Corporation Law

SIGNATURE

After reasonable inquiry and to the best of each of the undersigned knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: April 23, 2018

ICAHN PARTNERS MASTER FUND LP

ICAHN OFFSHORE LP

ICAHN PARTNERS LP

ICAHN ONSHORE LP

BECKTON CORP.

HOPPER INVESTMENTS LLC

BARBERRY CORP.

HIGH RIVER LIMITED PARTNERSHIP

By: Hopper Investments LLC, general partner

By: Barberry Corp.

Name: Edward E. Mattner

Title: Authorized Signatory

ICAHN CAPITAL LP

By: IPH GP LLC, its general partner

By: Icahn Enterprises Holdings L.P., its sole member

By: Icahn Enterprises G.P. Inc., its general partner

IPH GP LLC

By: Icahn Enterprises Holdings L.P., its sole member

By: Icahn Enterprises G.P. Inc., its general partner

ICAHN ENTERPRISES HOLDINGS L.P.

By: Icahn Enterprises G.P. Inc., its general partner

ICAHN ENTERPRISES G.P. INC.

Name: SungHwan Cho

Title: Chief Financial Officer

CARL C. ICAHN

[Signature Page of Amendment No. 7 to Schedule 13D – Sandridge Energy, Inc.]