WORLEY LIMITED — Capital/Financing Update 2012

May 3, 2012

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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 May 2012

ASX Release WORLEYPARSONS LIMITED

(ASX: WOR)

WorleyParsons Joint Venture Awarded Contract for Tengizchevroil's Wellhead Pressure Management Project in Kazakhstan

WorleyParsons announced today its joint venture with Fluor Corporation, the Kazakh Institute of Oil and Gas (KING) and KazGiproNefteTrans Engineering Company (KGNT EC) was awarded a contract by Tengizchevroil, LLP (TCO) for its Wellhead Pressure Management Project in Kazakhstan. The Wellhead Pressure Management Project will support ongoing operations of the Tengiz field.

The joint venture will work together to train and enhance the engineering and construction skills of the local workforce with a high priority on safety, thereby creating a long-term sustainable workforce in the region.

John Grill, Chief Executive Officer of WorleyParsons said: “WorleyParsons is pleased to be part of the joint venture chosen for this milestone project which further enhances our long standing presence in Kazakhstan. Through our track record of successfully engaging and developing local content, this partnership was created with Fluor and the two Kazakh companies (KING and KGNT) to promote the long-term sustainable development of the workforce in the region for this contract.”

For further information please contact:

Andrew Wood Geoff Fowlstone Group Managing Director – Finance/ CFO Fowlstone Communications Ph: +61 2 8923 6866 Ph: +61 2 9955 9899 www.worleyparsons.com Mob: +61 413 746 949 geoff@fowlstone.com.au