ORIGIN ENERGY LIMITED — Major Shareholding Notification 2017

Dec 19, 2017

605 page 1/2 15 July 2001

Form 605

Corporations Act 2001 Section 671B

Notice of ceasing to be a substantial holder

To Company Name/Scheme ORIGIN ENERGY LTD ACN/ARSN 000 051 696

1. Details of substantial holder(1)

Name BlackRock Group (BlackRock Inc. and subsidiaries named in Annexures

ACN/ARSN (if applicable) to this form)

The holder ceased to be a substantial holder on 18 / / 12 2017 The previous notice was given to the company on 01 / / 12 2017 The previous notice was dated 29 / / 11 2017

2. Changes in relevant interests

Particulars of each change in, or change in the nature of, a relevant interest (2) of the substantial holder or an associate (3) in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme are as follows:

Date of change	Person whose relevant interest changed	Nature of change (4)	Consideration given in relation to change(5)	Class (6) and number of securities affected	Person's votes affected
	Annexure A & C

3. Changes in association

The persons who have become associates (3) of, ceased to be associates of, or have changed the nature of their association (7) with, the substantial holder in relation to voting interests in the company or scheme are as follows:

Name and ACN/ARSN (if applicable) Nature of association

4. Addresses

The addresses of persons named in this form are as follows:

Name	Address
Annexure B

Signature

print name sign here	capacity Maria Tricarico *Authorised Signatory
	date / / 20 12 2017

605 page 2/2 15 July 2001

DIRECTIONS

• (1) If there are a number of substantial holders with similar or related relevant interests (eg. a corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly set out in paragraph 4 of the form.

• (2) See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001.

• (3) See the definition of "associate" in section 9 of the Corporations Act 2001.

(4) Include details of:

• (a) any relevant agreement or other circumstances because of which the change in relevant interest occurred. If subsection 671B(4) applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accurate details of any contract, scheme or arrangement, must accompany this form, together with a written statement certifying this contract, scheme or arrangement; and

• (b) any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies).

See the definition of "relevant agreement" in section 9 of the Corporations Act 2001.

• (5) Details of the consideration must include any and all benefits, money and other, that any person from whom a relevant interest was acquired has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included of any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired.

• (6) The voting shares of a company constitute one class unless divided into separate classes.

• (7) Give details, if appropriate, of the present association and any change in that association since the last substantial holding notice.

Annexure A

20-Dec-17

This is Annexure A of 5 pages referred to in form 605 Notice of ceasing to be a substantial shareholder

Maria Tricarico,

Date

Authorised Signatory

2. Changes in relevant interests

		ORIGIN ENERGY	LTD (ORG)
Date of Change	Person whose relevant interest changed	Nature of change Consideration given in change (5)	(4) / relation to	CCY	Class (6) and number of securities affected		Person's votes affected
30-Nov-17	BlackRock Institutional Trust	in specie	n/a	AUD	ORD	-29,247	-29,247
	Company,National Association
30-Nov-17	BlackRock Asset Management	on mkt sell	8.93	AUD	ORD	-132	-132
	Canada Limited
30-Nov-17	BlackRock Institutional Trust	on mkt sell	8.93	AUD	ORD	-1,339	-1,339
	Company,National Association
30-Nov-17	BlackRock Investment Management,	on mkt sell	8.93	AUD	ORD	-15,006	-15,006
	LLC
30-Nov-17	BlackRock Investment Management,	on mkt sell	8.93	AUD	ORD	-6,878	-6,878
	LLC
30-Nov-17	BlackRock Investment Management,	on mkt sell	8.93	AUD	ORD	-1,278	-1,278
	LLC
30-Nov-17	BlackRock Fund Advisors	on mkt sell	8.93	AUD	ORD	-14,720	-14,720
30-Nov-17	BlackRock Advisors(UK)Limited	on mkt sell	8.93	AUD	ORD	-3,380	-3,380
30-Nov-17	BlackRock Advisors(UK)Limited	on mkt sell	8.93	AUD	ORD	-20,478	-20,478
30-Nov-17	BlackRock Institutional Trust	on mkt sell	8.93	AUD	ORD	-68,185	-68,185
	Company,National Association
30-Nov-17	BlackRock Institutional Trust	on mkt sell	8.93	AUD	ORD	-16,150	-16,150
	Company,National Association
30-Nov-17	BlackRock Investment Management,	on mkt sell	8.93	AUD	ORD	-612	-612
	LLC
30-Nov-17	BlackRock Investment Management	on mkt sell	8.93	AUD	ORD	-105,820	-105,820
	(UK)Limited
30-Nov-17	BlackRock Institutional Trust	on mkt buy	8.93	AUD	ORD	20,420	20,420
	Company,National Association
30-Nov-17	BlackRock Institutional Trust	on mkt buy	8.93	AUD	ORD	2,013	2,013
	Company,National Association
30-Nov-17	BlackRock Asset Management	on mkt buy	8.93	AUD	ORD	1,209	1,209
	Canada Limited
30-Nov-17	BlackRock International Limited	on mkt buy	8.93	AUD	ORD	10,872	10,872
30-Nov-17	BlackRock Fund Advisors	on mkt buy	8.93	AUD	ORD	3,780	3,780
30-Nov-17	BlackRock Institutional Trust	on mkt buy	8.93	AUD	ORD	32,928	32,928
	Company,National Association
30-Nov-17	BlackRock Japan Co.,Ltd.	on mkt sell	8.93	AUD	ORD	-3,010	-3,010
30-Nov-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	-21	-21
30-Nov-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	-5	-5
	Inc.
30-Nov-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-401	-401
	LLC
30-Nov-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	-296	-296
	(UK)Limited
30-Nov-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	740	740
	Asia Limited
01-Dec-17	BlackRock Financial Management,	on mkt sell	9.08	AUD	ORD	-160	-160
	Inc.
01-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	713	713
	(Australia)Limited
01-Dec-17	BlackRock Advisors(UK)Limited	on mkt sell	9.07	AUD	ORD	-572	-572
01-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	14,968	14,968
01-Dec-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	28	28
01-Dec-17	BlackRock Advisors(UK)Limited	collateral transfer	n/a	AUD	ORD	-11	-11
01-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	2	2
	Inc.
01-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-4	-4
	LLC
01-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	-146	-146
	(UK)Limited
01-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	112	112
	Asia Limited
04-Dec-17	BlackRock Advisors(UK)Limited	on mkt sell	9.10	AUD	ORD	-10,761	-10,761
04-Dec-17	BlackRock Advisors(UK)Limited	on mkt sell	9.10	AUD	ORD	-5,110	-5,110
04-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-13,797	-13,797
	Company,National Association
04-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	60,110	60,110
	(Australia)Limited
04-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	3,910	3,910
04-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	1,564	1,564
04-Dec-17	BlackRock Advisors (UK) Limited	in specie	n/a	AUD	ORD	-7,202	-7,202

ORG

page 1 of 5

Date of Change	Person whose relevant interest changed	Nature of change Consideration given in change (5)	(4) / relation to	CCY	Class (6) and number of securities affected	Class (6) and number of securities affected	Person's votes affected
04-Dec-17	BlackRock Advisors(UK)Limited	in specie	n/a	AUD	ORD	-26,376	-26,376
04-Dec-17	BlackRock Institutional Trust	in specie	n/a	AUD	ORD	-107,448	-107,448
	Company,National Association
04-Dec-17	BlackRock Institutional Trust	in specie	n/a	AUD	ORD	-73,775	-73,775
	Company,National Association
04-Dec-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	12,602	12,602
04-Dec-17	BlackRock Advisors(UK)Limited	collateral transfer	n/a	AUD	ORD	119,833	119,833
04-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	-937	-937
	Inc.
04-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-122	-122
	LLC
04-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	1,008	1,008
	(UK)Limited
04-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	83	83
	Asia Limited
05-Dec-17	BlackRock Advisors(UK)Limited	on mkt buy	9.12	AUD	ORD	3,585	3,585
05-Dec-17	BlackRock Advisors(UK)Limited	on mkt buy	9.12	AUD	ORD	2,460	2,460
05-Dec-17	BlackRock Japan Co.,Ltd.	on mkt sell	9.12	AUD	ORD	-2,251	-2,251
05-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	8,602	8,602
05-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	1,935	1,935
05-Dec-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	56	56
05-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	485	485
	LLC
05-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	128	128
	(UK)Limited
05-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-710	-710
	Asia Limited
06-Dec-17	BlackRock Investment Management	on mkt buy	8.93	AUD	ORD	22,834	22,834
	(Australia)Limited
06-Dec-17	BlackRock Investment Management	on mkt buy	8.93	AUD	ORD	12,278	12,278
	(Australia)Limited
06-Dec-17	BlackRock Investment Management	on mkt buy	8.91	AUD	ORD	12,324	12,324
	(Australia)Limited
06-Dec-17	BlackRock Advisors(UK)Limited	on mkt buy	8.91	AUD	ORD	1,842	1,842
06-Dec-17	BlackRock Advisors(UK)Limited	on mkt buy	8.91	AUD	ORD	3,070	3,070
06-Dec-17	BlackRock Advisors(UK)Limited	on mkt buy	8.91	AUD	ORD	615	615
06-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	3,742	3,742
06-Dec-17	BlackRock Advisors(UK)Limited	in specie	n/a	AUD	ORD	-11,150	-11,150
06-Dec-17	BlackRock Advisors(UK)Limited	in specie	n/a	AUD	ORD	11,150	11,150
06-Dec-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	-158	-158
06-Dec-17	BlackRock Advisors(UK)Limited	collateral transfer	n/a	AUD	ORD	267,526	267,526
06-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	2	2
	Inc.
06-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-296	-296
	LLC
06-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	57	57
	(UK)Limited
06-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	375	375
	Asia Limited
07-Dec-17	BlackRock Asset Management	on mkt buy	9.01	AUD	ORD	7,743	7,743
	Canada Limited
07-Dec-17	BlackRock Investment Management	on mkt buy	9.01	AUD	ORD	525	525
	(Australia)Limited
07-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	1,898	1,898
07-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	402,272	402,272
07-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-25,963	-25,963
07-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	-2	-2
	Inc.
07-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	1,384	1,384
	LLC
07-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	78	78
	(UK)Limited
07-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-1,613	-1,613
	Asia Limited
08-Dec-17	BlackRock Financial Management,	in specie	n/a	AUD	ORD	13,710	13,710
	Inc.
08-Dec-17	BlackRock Investment Management	on mkt buy	9.13	AUD	ORD	9,474	9,474
	(Australia)Limited
08-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	4,048	4,048
08-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	6,072	6,072
08-Dec-17	BlackRock Investment Management	on mkt sell	9.13	AUD	ORD	-284,078	-284,078
	(Australia)Limited
08-Dec-17	BlackRock Investment Management	in specie	n/a	AUD	ORD	7,202	7,202
	(UK)Limited
08-Dec-17	BlackRock Investment Management	in specie	n/a	AUD	ORD	26,376	26,376
	(UK) Limited

ORG

page 2 of 5

Date of Change	Person whose relevant interest changed	Nature of change Consideration given in change (5)	(4) / relation to	CCY	Class (6) and number of securities affected	Class (6) and number of securities affected	Person's votes affected
08-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	-605,696	-605,696
08-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-1,639	-1,639
08-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	1	1
	Inc.
08-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-128	-128
	LLC
08-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	914	914
	(UK)Limited
08-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-723	-723
	Asia Limited
11-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.13	AUD	ORD	-3,587	-3,587
11-Dec-17	BlackRock Investment Management	on mkt buy	9.13	AUD	ORD	89,828	89,828
	(UK)Limited
11-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.13	AUD	ORD	-3,587	-3,587
11-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.13	AUD	ORD	563	563
11-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	30,580	30,580
11-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-10,496	-10,496
11-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	1	1
	Inc.
11-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	379	379
	LLC
11-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	308	308
	(UK)Limited
11-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-713	-713
	Asia Limited
12-Dec-17	BlackRock Investment Management	on mkt sell	9.20	AUD	ORD	-16,558	-16,558
	(UK)Limited
12-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.30	AUD	ORD	14,340	14,340
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	3,128	3,128
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	11,730	11,730
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	3,128	3,128
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	7,584	7,584
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	15,168	15,168
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-39,710	-39,710
12-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	3,742	3,742
12-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	-13,638	-13,638
12-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-9,245	-9,245
12-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	1	1
12-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-731	-731
	LLC
12-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	-374	-374
	(UK)Limited
12-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	1,164	1,164
	Asia Limited
13-Dec-17	BlackRock Investment Management	on mkt buy	9.26	AUD	ORD	36,715	36,715
13-Dec-17	BlackRock Advisors(UK)Limited	on mkt sell	9.26	AUD	ORD	-3,586	-3,586
13-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.27	AUD	ORD	11,666	11,666
13-Dec-17	BlackRock Investment Management	on mkt buy	9.27	AUD	ORD	3,125	3,125
	(Australia)Limited
13-Dec-17	BlackRock Investment Management	on mkt buy	9.27	AUD	ORD	110,686	110,686
	(Australia)Limited
13-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-3,796	-3,796
13-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-23,826	-23,826
13-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	7,584	7,584
13-Dec-17	BlackRock Investment Management	on mkt sell	9.27	AUD	ORD	-294,319	-294,319
	(Australia)Limited
13-Dec-17	BlackRock Investment Management	on mkt buy	9.27	AUD	ORD	294,319	294,319
	(Australia)Limited
13-Dec-17	BlackRock Investment Management	on mkt sell	9.27	AUD	ORD	-196,577	-196,577
	(Australia)Limited
13-Dec-17	BlackRock Japan Co.,Ltd.	collateral transfer	n/a	AUD	ORD	-65,734	-65,734
13-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-1,169	-1,169

ORG

page 3 of 5

Date of Change	Person whose relevant interest changed	Nature of change Consideration given in change (5)	(4) / relation to	CCY	Class (6) and number of securities affected	Class (6) and number of securities affected	Person's votes affected
13-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	2	2
	Inc.
13-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	853	853
	LLC
13-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	74	74
	(UK)Limited
13-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-971	-971
	Asia Limited
14-Dec-17	BlackRock Advisors(UK)Limited	on mkt sell	9.27	AUD	ORD	-17,930	-17,930
14-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.17	AUD	ORD	-24,098	-24,098
14-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.17	AUD	ORD	7,524	7,524
14-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.17	AUD	ORD	-627,550	-627,550
14-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	-123	-123
14-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-16	-16
14-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	-52	-52
	Inc.
14-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	-627	-627
	LLC
14-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	-119	-119
	(UK)Limited
14-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	924	924
	Asia Limited
15-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.10	AUD	ORD	-14,464	-14,464
15-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.10	AUD	ORD	-1,840	-1,840
15-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.10	AUD	ORD	-18,493	-18,493
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-9,954	-9,954
	Company,National Association
15-Dec-17	BlackRock Investment Management	on mkt sell	9.10	AUD	ORD	-22,138	-22,138
	(UK)Limited
15-Dec-17	BlackRock Investment Management	on mkt sell	9.10	AUD	ORD	-130	-130
	(UK)Limited
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-2,903	-2,903
	Company,National Association
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-7,184	-7,184
	Company,National Association
15-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	27,488	27,488
	(UK)Limited
15-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	16,904	16,904
	(Australia)Limited
15-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.10	AUD	ORD	4,588	4,588
15-Dec-17	BlackRock Investment Management,	on mkt buy	9.10	AUD	ORD	3,142	3,142
	LLC
15-Dec-17	BlackRock Institutional Trust	on mkt buy	9.10	AUD	ORD	15,674	15,674
	Company,National Association
15-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	5,047	5,047
	(Australia)Limited
15-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	4,667	4,667
	(Australia)Limited
15-Dec-17	BlackRock Investment Management	on mkt buy	9.10	AUD	ORD	5,381	5,381
	(Australia)Limited
15-Dec-17	BlackRock Asset Management	on mkt buy	9.10	AUD	ORD	9,780	9,780
	Canada Limited
15-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.10	AUD	ORD	-30,134	-30,134
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-16,220	-16,220
	Company,National Association
15-Dec-17	BlackRock Investment Management	on mkt sell	9.10	AUD	ORD	-36,076	-36,076
	(UK)Limited
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-4,733	-4,733
	Company,National Association
15-Dec-17	BlackRock Institutional Trust	on mkt sell	9.10	AUD	ORD	-11,708	-11,708
	Company,National Association
15-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-31,768	-31,768
15-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	19,912	19,912
15-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	14,934	14,934
15-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	81,044	81,044
15-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	28	28
	LLC

ORG

page 4 of 5

Date of Change	Person whose relevant interest changed	Nature of change Consideration given in change (5)	(4) / relation to	CCY	Class (6) and number of securities affected	Class (6) and number of securities affected	Person's votes affected
15-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	-162	-162
	(UK)Limited
15-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-130	-130
	Asia Limited
18-Dec-17	BlackRock Investment Management	on mkt sell	9.14	AUD	ORD	-2,781	-2,781
	(Australia)Limited
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.13	AUD	ORD	-14,484	-14,484
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.13	AUD	ORD	-18,105	-18,105
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.13	AUD	ORD	25,109	25,109
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.13	AUD	ORD	4,464	4,464
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt buy	9.13	AUD	ORD	4,044	4,044
18-Dec-17	BlackRock Advisors (UK) Limited	on mkt sell	9.13	AUD	ORD	-3,621	-3,621
18-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	20,160	20,160
18-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-57,000	-57,000
18-Dec-17	BlackRock Fund Advisors	in specie	n/a	AUD	ORD	-11,137	-11,137
18-Dec-17	BlackRock Institutional Trust	in specie	n/a	AUD	ORD	-11,580	-11,580
	Company,National Association
18-Dec-17	BlackRock Institutional Trust	in specie	n/a	AUD	ORD	-2,343	-2,343
	Company,National Association
18-Dec-17	BlackRock Japan Co., Ltd.	collateral transfer	n/a	AUD	ORD	50	50
18-Dec-17	BlackRock Advisors (UK) Limited	collateral transfer	n/a	AUD	ORD	-2,079	-2,079
18-Dec-17	BlackRock Financial Management,	collateral transfer	n/a	AUD	ORD	2	2
	Inc.
18-Dec-17	BlackRock Investment Management,	collateral transfer	n/a	AUD	ORD	338	338
	LLC
18-Dec-17	BlackRock Investment Management	collateral transfer	n/a	AUD	ORD	207	207
	(UK)Limited
18-Dec-17	BlackRock Asset Management North	collateral transfer	n/a	AUD	ORD	-619	-619
	Asia Limited

ORG

page 5 of 5

Annexure B

This is Annexure B of 1 pages referred to in form 605 Notice of ceasing to be a substantial shareholder

20-Dec-17 Maria Tricarico, Date Authorised Signatory

7. Addresses

The addresses of persons named in this form are as follows:

Name	Address
BlackRock Group
BlackRock Inc.	55 East 52nd Street
	New York NY 10055 USA
BlackRock Advisors (UK) Limited	12 Throgmorton Avenue.
	London, EC2N 2DL,
	United Kingdom
BlackRock Asset Management Canada Limited	161 Bay Street, Suite 2500
	Toronto, Ontario M5J 2S1
	Canada
BlackRock Asset Management North Asia Limited	15/F, 16/F, 17/F Citibank Tower & 17/F ICBC Tower,
	3 Garden Road,Central,HongKong
BlackRock Financial Management, Inc.	1209 Orange Street,
	Wilmington, New Castle County,
	Delaware 19801,United States
BlackRock Fund Advisors	400 Howard Street
	San Francisco, CA, 94105
	United States
BlackRock Institutional Trust Company, National	1225 17th Street,
Association	Suite 300,
	Denver,CO 80202(Colorado,USA)
BlackRock International Limited	Exchange Place One,
	1 Semple Street,
	Edinburgh, EH3 8BL,
	United Kingdom(Scotland,United Kingdom)
BlackRock Investment Management (Australia) Limited	Level 26, 101 Collins Street
	Melbourne VIC 3000
	Australia(Victoria,Australia)
BlackRock Investment Management (UK) Limited	12 Throgmorton Avenue
	London EC2N 2DL
	United Kingdom
BlackRock Investment Management, LLC	1209 Orange Street,
	Wilmington, New Castle County,
	Delaware 19801,United States
BlackRock Japan Co., Ltd.	Marunouchi Trust Tower Main,
	1-8-3 Marunouchi,
	Chiyoda-ku,Tokyo 100-8217(Japan)

ORG

page 1 of 1

Annexure C

This is Annexure C of 1 page referred to in form 605 Notice of ceasing to be a substantial shareholder

20-Dec-17 Maria Tricarico, Authorised Signatory Date	20-Dec-17 Maria Tricarico, Authorised Signatory Date
Type of agreement:	Global Master Securities Lending Agreement
Parties to agreement:	Party A - Citigroup Global Markets Limited Party B - HSBC Institutional Trust Services (Asia) Limited
Transfer date:	Refer to Annexure A (transactions identified as collateral transfers)
Holder of voting rights:	BlackRock Asset Management North Asia Limited (as investment manager for the funds)
Are there any restrictions on voting rights? If yes, detail	Yes. Unless otherwise agreed between the parties, the Registered Owner will not exercise any voting rights.
Scheduled return date (if any):	Not applicable.
Does the borrower have the right to return early? If yes, detail	Yes. Upon an Event of Default under the GMSLA, the GMSLA provides, broadly, that both parties payment and delivery obligations will be accelerated and replaced with an obligation of one party to pay a single cash sum to the other determined in accordance with the provisions of the GMSLA (as modified by the Annex). The GMSLA provides that the parties’ right to terminate the Agreement upon notice will not affect the parties’ existing obligations in respect of any outstanding loans of securities. The Annex amended and restricted the Borrower's termination rights – i.e. Borrower may not have the right to terminate and return the borrowed securities - as the Borrower was to borrow the securities issued by it (or its sister company) to provide protection against the insolvency of the issuer and so usual rights of termination in a GMSLA were restricted. Subject to the terms of the relevant Loan, the Borrower, may early terminate a Loan and return Equivalent Securities at any time provided that it “shall cease to have such entitlement if an Act of Insolvency with respect to any Security Issuer or any of the Borrower’s or any Security Issuer’s affiliates has occurred, or any such person takes any steps preparatory to any of the matters which would constitute an Act of Insolvency
Does the lender have the right to recall early? If yes, detail	Yes, at notice.
Will the securities be returned on settlement? If yes, detail any exceptions	Yes.

A copy of this agreement will be provided to ORIGIN ENERGY LTD or the Australian Securities and Investments Commission upon request.

ORG Page 1 of 1