WORLEY LIMITED — Capital/Financing Update 2012

Apr 10, 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

11 April 2012

ASX Release

WORLEYPARSONS LIMITED

(ASX: WOR)

Hebron Offshore Platform Contract

WorleyParsons is pleased to announce that it has been awarded a contract by ExxonMobil Canada Properties for the topsides on the Hebron Project. The contract follows front end engineering and design services and exercises ExxonMobil’s option to subsequently award detailed engineering, procurement and construction (EPC) services.

The Hebron Field is an oil and gas development in the Atlantic Ocean located 350 kilometers offshore from St. John’s in Newfoundland and Labrador, Canada.

WorleyParsons estimates its portion, including engineering and project management, of the services revenue under the EPC contract to be US$360 million over five years. WorleyParsons, working with Fluor, will provide overall project management of the contract with subcontracts to be awarded to multiple third parties, with a special emphasis on performing work in Newfoundland and Labrador.

Commenting, WorleyParsons’ Chief Executive Officer John Grill said: “WorleyParsons is excited to have been contracted for this next phase by ExxonMobil Canada Properties for the complex Hebron project which will utilize our proven expertise in sub-Arctic floatover topsides”.

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