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Oil and gas explortion situationPetroChina has launched 138 oil andgas exploration projects in total in 2001with the plans to have additional oilrecoverable reserves of more than 80million tons and additional natural gasobtained industrial oil and gas flo
Oil and gas explortion situationPetroChina has launched 138 oil andgas exploration projects in total in 2001 with the plans to have additional oilrecoverable reserves of more than 80million tons and additional natural gasobtained industrial oils and gas flo