WORLEY LIMITED — Capital/Financing Update 2011

Nov 3, 2011

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Level 12, 141 Walker Street North Sydney NSW 2060 Australia Telephone: +61 2 8923 6866 Facsimile: +61 2 8923 6877 worleyparsons.com WorleyParsons Limited ABN 17 096 090 158

4 November 2011

ASX Release WORLEYPARSONS LIMITED

(ASX: WOR)

Award of Improve ECM contract for mine sites in Queensland

WorleyParsons has been awarded an Improve contract with BHP Billiton Mitsubishi Alliance (BMA) for mine sites in Queensland. The contract includes engineering and construction management (ECM) for significant capital works at six mine sites in the Bowen Basin. The contract will commence immediately and has a duration of two years with two one year options to extend.

WorleyParsons’ Improve business stream is focussed on delivering ongoing improvements to our customers’ sustaining and significant capital assets through long-term mutually beneficial relationships.

John Grill, WorleyParsons’ Chief Executive Officer, said: “We have worked with BMA’s Goonyella Riverside mine since 2008 and we are delighted to extend this relationship to these additional sites in Queensland. Through this agreement we are able to bring the expertise from our global minerals and metals business together with our experience in long-term alliance contracts.”

For further information please contact:

Andrew Wood Group Managing Director – Finance/CFO Ph: +61 2 8923 6866 www.worleyparsons.com

Geoff Fowlstone Fowlstone Communications Ph: +61 2 9955 9899 Mob: +61 413 746 949 geoff@fowlstone.com.au