26 February 2018

The Manager, Company Announcements ASX Limited

Exchange Centre 20 Bridge Street Sydney NSW 2000

Horizon Oil Limited ABN 51 009 799 455

Level 6, 134 William Street, Woolloomooloo NSW Australia 2011

Tel +61 2 9332 5000, Fax +61 2 9332 5050www.horizonoil.com.au

HORIZON OIL LIMITED NOTICE OF WEBCAST

Horizon Oil advises that a shareholder briefing will be held on Tuesday, 27 February 2018 at 11.00am (AEST) in relation to the 2018 half year financial results.

The briefing will be in the form of a live audio webcast hosted by Brent Emmett, Horizon Oil Chief Executive Officer and Michael Sheridan, Horizon Oil Chief Financial Officer.

The briefing will cover information outlined in the Financial Results presentation for the half year ended 31 December 2017.

To register, please copy and paste the link below into your browser:

http://webcast.openbriefing.com/4210/

Yours faithfully

Kylie Quinlivan

Corporate Counsel and Assistant Company Secretary

For more information please contact:

Horizon Oil Limited

Brent Emmett Chief Executive OfficerMedia enquiries Gavan Collery ResourceComms Pty Ltd

T: +61 2 9332 5000 F: +61 2 9332 5050

E:info@horizonoil.com.au

M: +61 419 372 210

E:gavan@resourcecomms.com

Level 6, 134 William St Woolloomooloo NSW 2011 horizonoil.com.au

Horizon Oil Limited published this content on 26 February 2018 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 25 February 2018 23:31:01 UTC.

Original documenthttp://hzn.live.irmau.com/irm/PDF/2517_0/HalfYearResultsWebcast

Public permalinkhttp://www.publicnow.com/view/DD5378BF154C174AAB0E85C8A0FB5D1B4433FC2A