Mad Dog Phase 2 Project Investment Approval BHP Billiton Plc Registration number 3196209 Registered in England and Wales Share code: BIL ISIN: GB0000566504 NEWS RELEASE Release Time IMMEDIATE Date 9 February 2017 Release Number 3/17 BHP BILLITON APPROVES INVESTMENT IN MAD DOG PHASE 2 PROJECT BHP Billiton today announced that the Board has approved expenditure of US$2.2 billion for its share of the development of the Mad Dog Phase 2 project in the Gulf of Mexico. BHP Billiton holds a 23.9 per cent participating interest in the Mad Dog field. BP, the operator, holds a 60.5 per cent participating interest, and Union Oil Company of California, an affiliate of Chevron U.S.A. Inc., holds the remaining 15.6 per cent participating interest. During the fourth quarter of 2016, BP sanctioned the Mad Dog Phase 2 project. Mad Dog Phase 2, located in the Green Canyon area in the Deepwater Gulf of Mexico, is a southern and southwestern extension of the existing Mad Dog field. The project includes a new floating production facility with the capacity to produce up to 140,000 gross barrels of crude oil per day from up to 14 production wells. Production is expected to begin in the 2022 financial year. Steve Pastor, BHP Billiton President Operations Petroleum, said “Mad Dog Phase 2 is one of the largest, discovered and undeveloped resources in the Gulf of Mexico, one of BHP Billiton’s preferred conventional deep-water basins. It offers an attractive investment opportunity for BHP Billiton and aligns with our strategic objective to build our conventional portfolio through the development of large, long-life, high-quality resources”. Further information on BHP Billiton can be found at: bhpbilliton.com Sponsor: UBS South Africa (Pty) Limited Media Relations Investor Relations Australia and Asia Australia and Asia Matthew Martyn-Jones Tara Dines Tel: +61 3 9609 2360 Mobile +61 419 418 394 Tel: +61 3 9609 2222 Mobile: +61 499 249 005 Email: Matthew.Martyn-Jones@bhpbilliton.com Email: Tara.Dines@bhpbilliton.com Paul Hitchins Andrew Gunn Tel: +61 3 9609 2592 Mobile +61 419 315 001 Tel: +61 3 9609 3575 Mobile: +61 402 087 354 Email: Paul.Hitchins@bhpbilliton.com Email: Andrew.Gunn@bhpbilliton.com Fiona Hadley United Kingdom and South Africa Tel: +61 3 9609 2211 Mobile +61 427 777 908 Email: Fiona.Hadley@bhpbilliton.com Rob Clifford Tel: +44 20 7802 4131 Mobile: +44 7788 308 844 Amanda Saunders Email: Rob.Clifford@bhpbilliton.com Tel: +61 3 9609 3985 Mobile +61 417 487 973 Email: Amanda.Saunders@bhpbilliton.com Elisa Morniroli Tel: +44 20 7802 7611 Mobile: +44 7825 926 646 United Kingdom and South Africa Email: Elisa.Morniroli@bhpbilliton.com Ruban Yogarajah Americas Tel: +44 207 802 4033 Mobile +44 7827 082 022 Email: Ruban.Yogarajah@bhpbilliton.com James Wear Tel: +1 713 993 3737 Mobile: +1 347 882 3011 North America Email: James.Wear@bhpbilliton.com Bronwyn Wilkinson Mobile: +1 604 340 8753 Email: Bronwyn.Wilkinson@bhpbilliton.com BHP Billiton Limited ABN 49 004 028 077 BHP Billiton Plc Registration number 3196209 LEI WZE1WSENV6JSZFK0JC28 LEI 549300C116EOWV835768 Registered in Australia Registered in England and Wales Registered Office: Level 18, 171 Collins Street Registered Office: Neathouse Place Melbourne Victoria 3000 Australia London SW1V 1LH United Kingdom Tel +61 1300 55 4757 Fax +61 3 9609 3015 Tel +44 20 7802 4000 Fax +44 20 7802 4111 Members of the BHP Billiton Group which is headquartered in Australia Follow us on social media Date: 09/02/2017 08:29:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.