WORLEY LIMITED — Capital/Financing Update 2012

Oct 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 October 2012

ASX Release

WORLEYPARSONS LIMITED

(ASX: WOR)

Contract extension to boost production from the Rumaila Oil Field, Iraq

WorleyParsons has been awarded a USD 90m contract extension by BP Iraq NV, and its partners PetroChina and the State Oil Marketing Organisation (SOMO) of the Republic of Iraq, to continue providing Engineering, Procurement and Management services to boost production from the super-giant Rumaila oilfield in Southern Iraq.

In November 2009, BP and its partners entered into a 20 year Technical Service Contract (TSC) with the South Oil Company of Iraq. Under the terms of the TSC, the BP led consortium is required to nearly triple output from the field to 2.85 million barrels of oil per day over the next 6 years. On completion of this work, Rumaila will become the world’s second largest producing oil field, contributing approximately 10% of Middle East production, 7% of OPEC production and 3% of global production.

The contract is being executed from WorleyParsons’ offices in London, UAE and Iraq.

Commenting, WorleyParsons’ CEO Andrew Wood stated “We are pleased to be able to continue our involvement in the reconstruction and development of Iraq’s oil and gas infrastructure. We understand the significance of the Rumaila development to the regeneration of the Iraqi economy, and we will work closely with the partners in the Rumaila development, BP, PetroChina and SOMO to create the maximum value over the life time of the field”.

For further information please contact:

Iain Ross Group Managing Director, Development Ph: +61 3 8676 3439 www.worleyparsons.com

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