WORLEY LIMITED — Capital/Financing Update 2012

Jul 23, 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

24 July 2012

ASX Release

WORLEYPARSONS LIMITED

(ASX: WOR)

WorleyParsons Announces Award of the Chevron Rosebank Project

WorleyParsons announces that Chevron North Sea Limited has selected WorleyParsons and its INTECSEA subsidiary to execute the Front End Engineering and Design (FEED) for the facilities associated with the Rosebank field, which include a Floating Production, Storage and Offloading (FPSO) and subsea infrastructure.

The work will be performed at WorleyParsons’ offices in Houston, Texas supported by WorleyParsons’ United Kingdom operations. This phase of the project follows WorleyParsons’ successful completion of the pre-FEED phase.

The Rosebank field is located approximately 130 kilometers northwest of the Shetland Islands, in water depths of approximately 1,100 meters. The Rosebank development is a joint venture between Chevron North Sea Limited; Statoil (U.K.) Limited; OMV (U.K.) Limited and DONG Exploration & Production (UK) Limited.

Commenting on the award, the Chief Executive Officer of WorleyParsons, Mr. John Grill, said: “We are extremely pleased that Chevron has selected the integrated offering of WorleyParsons and INTECSEA to deliver the next phase of the world-class Rosebank project. This is an excellent example of our deepwater project delivery capabilities in a harsh environment setting. Chevron is one of our top global customers and we look forward to continuing our strong working relationship”.

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