Exhibit 99.1

Announcement

Wednesday, 4 March 2026

LOGO

Woodside Energy Group Ltd

ACN 004 898 962

Mia Yellagonga

11 Mount Street

Perth WA 6000

Australia

T +61 8 9348 4000

www.woodside.com

ASX: WDS

NYSE: WDS

APPENDIX 3Y (CHANGE OF DIRECTOR’S INTEREST NOTICE)

In accordance with the Listing Rules, please see attached announcement relating to the above, for release to the market.

Contacts:

INVESTORS

Vanessa Martin

M: +61 477 397 961

E: investor@woodside.com

MEDIA

Christine Abbott

M: +61 484 112 469

E: christine.abbott@woodside.com

This announcement was approved and authorised for release by Woodside’s Disclosure Committee.

Page 1

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Lawrence (Larry) Eben Archibald
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				17,320 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan
Class				Ordinary
Number acquired				560
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share
No. of securities held after change				17,880 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Ashok Belani
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				2,665
Class				Ordinary
Number acquired				846
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share
No. of securities held after change				3,511 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Arnaud Francis Pierre Philippe Breuillac
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				3,808 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan
Class				Ordinary
Number acquired				900
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share
No. of securities held after change				4,708 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Swee Chen Goh
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				17,787 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan
Class				Ordinary
Number acquired				334
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share
No. of securities held after change				18,121 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Ian Elgin Macfarlane
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				Direct: 1,250 directly held ordinary shares Indirect: 14,026 ordinary shares (being 12,776 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan and 1,250 ordinary shares held by K Macfarlane)
Class				Ordinary
Number acquired				170
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

No. of securities held after change

Direct: 1,250 directly held ordinary shares

Indirect: 14,196 ordinary shares (being: 12,946 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan and 1,250 ordinary shares held by K Macfarlane)

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Angela Arthur Minas
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				3,077 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan
Class				Ordinary
Number acquired				846
Number disposed				Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share
No. of securities held after change				3,923 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11


Name of entity		Woodside Energy Group Ltd
ABN		55 004 898 962

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.


Name of Director		Benjamin Sana Wyatt
Date of last notice		30 October 2025

Part 1 – Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.


Direct or indirect interest				Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.				Beneficial interest in ordinary shares held pursuant to the Non-Executive Directors’ Share Plan by the trustee, CPU Share Plans Pty Ltd
Date of change				26 February 2026
No. of securities held prior to change				Indirect: 7,467 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan Direct: 1,800 directly held ordinary shares
Class				Ordinary
Number acquired				1,116
Number disposed				Nil

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation				$28.1341 per share

+ See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

No. of securities held after change

Indirect: 8,583 ordinary shares held by CPU Share Plans Pty Ltd as trustee of the Non-Executive Directors’ Share Plan

Direct: 1,800 directly held ordinary shares

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

On-market purchase by the trustee under the Non-Executive Directors’ Share Plan.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.


Detail of contract				N/A
Nature of interest				N/A
Name of registered holder (if issued securities)				N/A
Date of change				N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed				N/A
Interest acquired				N/A
Interest disposed				N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation				N/A
Interest after change				N/A

Part 3 – +Closed period


Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?				No
If so, was prior written clearance provided to allow the trade to proceed during this period?				N/A
If prior written clearance was provided, on what date was this provided?				N/A

+ See chapter 19 for defined terms.


Appendix 3Y Page 2		01/01/2011

WOODSIDE ENERGY GROUP LTD 6-K