EX-25.1 7 a2233889zex-25_1.htm EX-25.1
QuickLinks -- Click here to rapidly navigate through this document

Exhibit 25.1

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY
UNDER THE TRUST INDENTURE ACT OF 1939 OF A
CORPORATION DESIGNATED TO ACT AS TRUSTEE

CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A
TRUSTEE PURSUANT TO SECTION 305(b)(2)

DEUTSCHE BANK TRUST COMPANY AMERICAS
(formerly BANKERS TRUST COMPANY)
(Exact name of trustee as specified in its charter)

NEW YORK (Jurisdiction of Incorporation or organization if not a U.S. national bank) |  | 13-4941247 (I.R.S. Employer Identification no.)
60 WALL STREET NEW YORK, NEW YORK (Address of principal executive offices) |  | 10005 (Zip Code)

Deutsche Bank Trust Company Americas
Attention: Catherine Wang
Legal Department
60 Wall Street, 36th Floor
New York, New York 10005
(212) 250-7544
(Name, address and telephone number of agent for service)

Ensco plc
(Exact name of registrant as specified in its charter)

England and Wales (State or other jurisdiction of incorporation or organization) |  | 98-0635229 (I.R.S. Employer Identification Number)

6 Chesterfield Gardens
London England W1J 5BQ
+44 (0) 20 7659 4660
(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Michael T. McGuinty
Senior Vice President, General Counsel and Secretary
Ensco plc
6 Chesterfield Gardens
London United Kingdom W1J 5BQ
44 (0) 20 7659 4660
(Name, address, including zip code, and telephone number, including area code, of agent for service)

With a copy to:

Sean T. Wheeler
Debbie P. Yee
Latham & Watkins LLP
811 Main Street, Suite 3700
Houston, Texas 77002
(713) 546-5400

DEBT SECURITIES
(Title of the Indenture securities)

Item 1. General Information.

Furnish the following information as to the trustee.

(a)
  Name and address of each examining or supervising authority to which it is subject.

Name |  | Address
--- | --- | ---
Federal Reserve Bank (2nd District) |  | New York, NY
Federal Deposit Insurance Corporation |  | Washington, D.C.
New York State Banking Department |  | Albany, NY

(b)
  Whether it is authorized to exercise corporate trust powers.
  Yes.

Item 2. Affiliations with Obligor.

If the obligor is an affiliate of the Trustee, describe each such affiliation.

Not applicable.

Item 3. -15. Not Applicable

Item 16. List of Exhibits.

Exhibit 1 |  | — |  | Restated Organization Certificate of Bankers Trust Company dated August 31, 1998; Certificate of Amendment of the Organization Certificate of Bankers Trust Company dated September 25, 1998; Certificate of Amendment of the Organization Certificate of Bankers Trust Company dated December 18, 1998;Certificate of Amendment of the Organization Certificate of Bankers Trust Company dated September 3, 1999; and Certificate of Amendment of the Organization Certificate of Bankers Trust Company dated March 14, 2002, incorporated herein by reference to Exhibit 1 filed with Form T-1 Statement, Registration No. 333-201810.
Exhibit 2 |  | — |  | Certificate of Authority to commence business, incorporated herein by reference to Exhibit 2 filed with Form T-1 Statement, Registration No. 333-201810.
Exhibit 3 |  | — |  | Authorization of the Trustee to exercise corporate trust powers, incorporated herein by reference to Exhibit 3 filed with Form T-1 Statement, Registration No. 333-201810.
Exhibit 4 |  | — |  | Existing By-Laws of Deutsche Bank Trust Company Americas, dated July 24, 2014, incorporated herein by reference to Exhibit 4 filed with Form T-1 Statement, Registration No. 333-201810.
Exhibit 5 |  | — |  | Not applicable.
Exhibit 6 |  | — |  | Consent of Bankers Trust Company required by Section 321(b) of the Act, incorporated herein by reference to Exhibit 6 filed with Form T-1 Statement, Registration No. 333-201810.
Exhibit 7 |  | — |  | A copy of the latest report of condition of the trustee published pursuant to law or the requirements of its supervising or examining authority.
Exhibit 8 |  | — |  | Not Applicable.
Exhibit 9 |  | — |  | Not Applicable.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the trustee, Deutsche Bank Trust Company Americas, a corporation organized and existing under the laws of the State of New York, has duly caused this statement of eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in The City of New York, and State of New York, on this 13th day of November, 2017.

|  | DEUTSCHE BANK TRUST COMPANY AMERICAS
|  | By: |  | /s/ CAROL NG
|  |  |  | Name: |  | Carol Ng
|  |  |  | Title: |  | Vice President

QuickLinks

Item 1. General Information.
Item 2. Affiliations with Obligor.
Item 3. -15. Not Applicable
Item 16. List of Exhibits.

SIGNATURE