Roc Oil Spuds WZ12-10-2 Well in Beibu Gulf Block 22/12 Offshore China



Roc Oil (China) Company, a wholly owned subsidiary of Roc Oil Company Limited, advised Tuesday that drilling has commenced on the second of two exploration wells in Beibu Gulf Block 22/12 offshore China. The second well, WZ12-10-2, is targeting the T42 and Weizhou formations, adjacent to the WZ12-8 West field in the WZ12-8 Development Area.

Drilling from jackup HYSY 935 -- formerly COSL 935 (300' ILC) commenced at 23:00 China Standard Time Oct. 3. Total depth planned for this vertical well is 5,249 feet (1,600 meters) measured depth (MD)/4,645 feet (1,416 meters) total vertical depth (TVD). The well is located 1 mile (1.6 kilometers) East Northeast from ROC’s existing Beibu 12-8W facilities and is in water depth of approximately 118 feet (36 meters).

Participating interests in the Beibu Gulf Project are:

  • Exploration CNOOC - 0 percent
    • Roc Oil (China) Company - 40 percent
    • Horizon Oil (Beibu) Ltd. and Petsec Petroleum LLC (wholly owned by Horizon Oil Limited) - 55 percent
    • Oil Australia Pty Ltd. (Majuko Corp.) - 5 percent
  • Production and Development
    • CNOOC - 51 percent Roc Oil (China) Company - 19.6 percent
    • Horizon Oil (Beibu) Ltd. and Petsec Petroleum LLC (wholly owned by Horizon Oil Limited) - 26.95 percent
    • Oil Australia Pty Ltd. (Majuko Corp.) - 2.45 percent


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