Submission of winning bid for Trion in Mexico BHP Billiton Plc Registration number 3196209 Registered in England and Wales Share code: BIL ISIN: GB0000566504 NEWS RELEASE Release Time IMMEDIATE Date 5 December 2016 Release Number 27 /16 BHP BILLITON SUBMITS WINNING BID FOR TRION IN MEXICO’S FIRST DEEPWATER BID ROUND BHP Billiton today announced that it submitted the winning bid to acquire a 60 per cent participating interest in and operatorship of blocks AE-0092 and AE-0093 containing the Trion discovery located in the deep-water Gulf of Mexico offshore Mexico. PEMEX Exploration & Production Mexico (Pemex) will retain a 40 per cent interest in the blocks. Pemex estimates the gross recoverable resource to be 485 MMboe. Subject to satisfaction of conditions (including the obtaining of government approvals), it is anticipated that the relevant agreements would be finalised and signed within 90 days. BHP Billiton’s bid for Trion includes an upfront cash payment of US$62.4 million and a commitment to a Minimum Work Program (estimated to be up to a maximum of US$320 million). Should BHP Billiton and Pemex agree to progress the project beyond the Minimum Work Program, BHP Billiton would be required to invest the remainder of the US$570 million Minimum Work Contribution (which includes the Minimum Work Program spend) and a US$624 million cash contribution (which comprises the upfront cash payment of US$62.4 million already paid and the balance of US$561.6 million as a future carry for Pemex). BHP Billiton’s bid also includes a commitment to an additional royalty of 4%. Steve Pastor, BHP Billiton President Operations Petroleum, said “We see attractive potential in Trion and the Perdido trend, and we are pleased to have the opportunity to further appraise and potentially develop this prospective frontier area of the deep- water Gulf of Mexico.” “This opportunity aligns with our strategy of owning and operating Tier-1 assets and provides an opportunity for BHP Billiton to leverage its industry leading deep-water drilling, development and operational expertise to create value in Mexico.” Sponsor: UBS South Africa (Pty) Limited Further information on BHP Billiton can be found at: bhpbilliton.com. Media Relations Investor Relations Australia and Asia Australia and Asia Matthew Martyn-Jones Tara Dines Tel: +61 7 3227 5816 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 3935 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 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: 06/12/2016 07:05:00 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.