Sec Form 4 Filing - PETRELLO ANTHONY G @ NABORS INDUSTRIES LTD - 2022-02-22

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person PETRELLO ANTHONY G 2. Issuer Name and Ticker or Trading Symbol NABORS INDUSTRIES LTD [ NBR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CHAIRMAN, PRESIDENT & CEO (Last) (First) (Middle) C/O NABORS CORPORATE SERVICES, 515 WEST GREENS ROAD 3. Date of Earliest Transaction (MM/DD/YY) 02/22/2022 (Street) HOUSTON, TX77067 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 02/22/2022 F( 1 ) 5,244( 1 ) D $ 126.28 203,780 D Common Stock 136,525 I Trust

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 2021 Warrants $ 166.6666( 2 ) 02/22/2022 A( 2 ) 6,904( 2 ) 06/11/2021 06/11/2026 Common Stock 6,904 $ 166.6666 35,652 D 2021 Warrants $ 166.6666 06/11/2021 06/11/2026 Common Stock 126,342 126,342 I Trust

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other PETRELLO ANTHONY G C/O NABORS CORPORATE SERVICES 515 WEST GREENS ROAD HOUSTON, TX77067 X CHAIRMAN, PRESIDENT & CEO Signatures /s/ Mark D. Andrews by Power of Attorney for Anthony G. Petrello 02/24/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects the number of shares surrendered on February 22, 2022 to satisfy the tax withholding on the vesting of 13,325 shares of the 39,975 performance shares originally granted on February 22, 2019. The remaining 8,081 vested shares were retained by the executive. ( 2 )These warrants were earned in connection with the vesting of Performance restricted stock units on January 2, 2022 by Mr. Petrello and distributed pursuant to the terms of the applicable award agreement on February 22, 2022 as determined by the Compensation Committee on February 11, 2022.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.