Beibu Gulf, Offshore China

Roc Oil Company Limited 09 January 2008 9 January 2008 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE DRILLING UPDATE: WEI-6-12W-1 EXPLORATION WELL, BLOCK 22/12, OFFSHORE CHINA Roc Oil (China) Company, a wholly owned subsidiary of ROC, advises as at 0600 hours (local time) on 9 January 2008, the Premium 'Murmanskaya' jack up drilling rig is preparing to run the 13-3/8 inch casing to a depth of 800 mBRT. The Wei-6-12W-1 well is located approximately 2.5 kilometres northwest of the Wei 6-12S-1 oil discovery. Participating Interests in Block 22/12 Joint Venture are: Roc Oil (China) Company............................. 40% (Operator) Horizon Oil Limited................................. 30% Petsec Petroleum.................................... 25% Oil Australia Pty Ltd*.............................. 5% The above interests are subject to Government participation in developments of up to 51% * A subsidiary of First Australian Resources Damian Fisher General Manager External Affairs & Investor Relations For further information please contact: Dr John Doran on Tel: +61-2-8356-2000 Fax: +61-2-9380-2635 Email: jdoran@rocoil.com.au Or visit ROC's website: www.rocoil.com.au Dr Kevin Hird General Manager - Business Development Tel: +44 (0)20 7495 5707/+61 (0)2 8356 2000 Mob: +44 (0)7751 3671 49/+61 (0)417 261 727 Email: khird@rocoil.com.au Michael Shaw Oriel Securities Limited (Nominated Adviser) Tel: +44 (0)20 7710 7600 Bobby Morse Buchanan Communications Tel: + 44 (0)20 7466 5000 Fax: + 44 (0)20 7466 5001 E-Mail: bobbym@buchanan.uk.com Mob: +44 (0)7802 875 227 This information is provided by RNS The company news service from the London Stock Exchange
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