Financial reports
20-F
2020 FY
Annual report (foreign)
22 Apr 21
20-F
2019 FY
Annual report (foreign)
22 Apr 20
20-F
2018 FY
Annual report (foreign)
23 Apr 19
20-F
2017 FY
Annual report (foreign)
19 Apr 18
20-F/A
2017 FY
Annual report (foreign) (amended)
19 Apr 18
20-F
2016 FY
Annual report (foreign)
21 Apr 17
20-F
2015 FY
Annual report (foreign)
21 Apr 16
20-F
2014 FY
Annual report (foreign)
22 Apr 15
20-F
2013 FY
Annual report (foreign)
17 Apr 14
20-F
2012 FY
Annual report (foreign)
24 Apr 13
Current reports
6-K
Current report (foreign)
30 Nov 21
6-K
CNOOC Limited Announces Buzzard Phase II Development Commenced Production
29 Nov 21
6-K
CNOOC Limited Announces Lufeng Oil Fields Regional Development Project Commences Production
23 Nov 21
6-K
Current report (foreign)
15 Nov 21
6-K
Current report (foreign)
28 Oct 21
6-K
Current report (foreign)
26 Oct 21
6-K
Current report (foreign)
12 Oct 21
6-K
Current report (foreign)
4 Oct 21
6-K
CNOOC Limited Announces A Large-sized Discovery of Kenli 10-2 in Bohai
30 Sep 21
6-K
Current report (foreign)
27 Sep 21
Registration and prospectus
15F-12B
Securities registration termination (foreign)
30 Nov 21
25-NSE
Exchange delisting
12 Oct 21
424B3
Prospectus supplement
27 Sep 19
FWP
Free writing prospectus
27 Sep 19
424B2
Prospectus for primary offering
26 Sep 19
FWP
Free writing prospectus
25 Sep 19
424B2
Prospectus for primary offering
20 Sep 19
POSASR
Automatic shelf registration (post-effective amendment)
20 Sep 19
FWP
Free writing prospectus
26 Apr 18
424B2
Prospectus for primary offering
26 Apr 18
Proxies
No filings
Other
IRAN
Disclosure regarding Iran Threat Reduction and Syria Human Rights Act
22 Apr 20
IRAN
Disclosure regarding Iran Threat Reduction and Syria Human Rights Act
23 Apr 19
IRAN
Disclosure regarding Iran Threat Reduction and Syria Human Rights Act
19 Apr 18
UPLOAD
Letter from SEC
27 Feb 18
CORRESP
Correspondence with SEC
9 Feb 18
UPLOAD
Letter from SEC
29 Jan 18
CORRESP
Correspondence with SEC
22 Nov 17
UPLOAD
Letter from SEC
7 Nov 17
CORRESP
Correspondence with SEC
20 Sep 17
CORRESP
Correspondence with SEC
21 Aug 17