Redemption of Petrohawk Energy Corporation 10.5% Senior Notes Due 2014 and 7.875% Senior Notes Due 2015 BHP Billiton Plc Registration number 3196209 Registered in England and Wales Share code: BIL ISIN: GB0000566504 NEWS RELEASE Release Time IMMEDIATE Date 2 January 2014 Number 1/14 REDEMPTION OF PETROHAWK ENERGY CORPORATION 10.5% SENIOR NOTES DUE 2014 AND 7.875% SENIOR NOTES DUE 2015 Petrohawk Energy Corporation has issued a formal notice of redemption to noteholders of its 10.5% Senior Notes due 2014 and 7.875% Senior Notes due 2015. All outstanding Senior Notes due 2014 and 2015 will be redeemed on 3 February 2014 at the applicable call prices. The total aggregate principal value of the notes to be redeemed is approximately US$1.4 billion. Further information on BHP Billiton can be found at: www.bhpbilliton.com. Sponsor: Absa Bank Limited (acting through its Corporate and Investment Banking Division) Media Relations Investor Relations Australia Australia Emily Perry James Agar Tel: +61 3 9609 2800 Mobile: +61 477 325 803 Tel: +61 3 9609 2222 Mobile: +61 467 807 064 email: Emily.Perry@bhpbilliton.com email: James.Agar@bhpbilliton.com Fiona Hadley Andrew Gunn Tel: +61 3 9609 2211 Mobile: +61 427 777 908 Tel: +61 3 9609 3575 Mobile: +61 402 087 354 email: Fiona.Hadley@bhpbilliton.com email: Andrew.Gunn@bhpbilliton.com Eleanor Nichols United Kingdom and South Africa Tel: +61 3 9609 2360 Mobile: +61 407 064 748 email: Eleanor.Nichols@bhpbilliton.com Tara Dines Tel: +44 20 7802 7113 Mobile: +44 7825 342 232 United Kingdom email: Tara.Dines@bhpbilliton.com Ruban Yogarajah Americas Tel: +44 20 7802 4033 Mobile: +44 7827 082 022 email: Ruban.Yogarajah@bhpbilliton.com James Agar Tel: +61 3 9609 2222 Mobile: +61 467 807 064 Jennifer White email: James.Agar@bhpbilliton.com Tel: +44 20 7802 7462 Mobile: +44 7827 253 764 email: Jennifer.White@bhpbilliton.com Matt Chism Tel: +1 713 599 6158 Mobile: +1 281 782 2238 Americas email: Matt.E.Chism@bhpbilliton.com Jaryl Strong Tel: +1 713 499 5548 Mobile: +1 281 222 6627 email: Jaryl.Strong@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 16, 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 Date: 02/01/2014 05:25:00 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.