ROC Oil Commences Drilling Offshore China

Roc Oil Company, a wholly owned subsidiary of ROC, advises that at noon (local time) on February 12, 2008, the Oremium "Murmanskaya" jack-up rig commenced drilling the Wei 6-12E-1 exploration well, on a stratigraphic-structural prospect approximately 1.7 kilometers east of the Wei 6-12S-1 oil discovery. P

At 0600 (local time) on February 13, 2008 the current operation was drilling a 17 1/2" hole to 277 mBRT.

Wei 6-12E-1, the second of the planned three well exploration/appraisal drilling program in Block 22/12, is expected to reach a Total Depth of approximately 2,520 mBRT by end February 2008.

Participating Interests in the Block 22/12 Joint Venture are: Roc Oil Company, 40% (Operator); Horizon Oil Limited, 30%; Petsec Petroleum, 25%; Oil Australia Pty Ltd, 5%.

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