HAL Halliburton Co

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 OF SECURITIES                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * Malone Robert A	2. Issuer Name and Ticker or Trading Symbol HALLIBURTON CO [ HAL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) P.O. BOX 437, 289 PR 3344	3. Date of Earliest Transaction (MM/DD/YYYY) 8/2/2021
(Street) SONORA, TX 76950-0437 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	8/2/2021		M		4130 (1)	A	$0	46399	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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
08/2017 Restricted Stock Units	(2)	8/2/2021		M			1068	(3)	(3)	Common Stock	1068	$0	0	D
08/2018 Restricted Stock Units	(2)	8/2/2021		M			1055	(3)	(3)	Common Stock	1055	$0	1056	D
08/2019 Restricted Stock Units	(2)	8/2/2021		M			2007	(3)	(3)	Common Stock	2007	$0	4014	D
12/2020 Restricted Stock Units	(2)							(4)	(4)	Common Stock	12319		12319	D

Explanation of Responses:
(1)	Vesting of 25% of restricted stock units granted on August 1, 2017, August 1, 2018, and August 1, 2019.
(2)	Each restricted stock unit represents a right to receive one share of the Company's common stock.
(3)	The restricted stock units vest in four equal annual installments beginning with the first anniversary of the award. Shares will be delivered to the reporting person either upon vesting, or if reporting person elected to defer receipt, following cessation as a director.
(4)	The restricted stock units vest in one year on the first anniversary of the award. Shares will be delivered to the reporting person either upon vesting, or if reporting person elected to defer receipt, following cessation as a director.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Malone Robert A P.O. BOX 437 289 PR 3344 SONORA, TX 76950-0437	X

Signatures
/s/ John E. Deering, by Power of Attorney		8/3/2021
**Signature of Reporting Person		Date