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Ultra-long Shale Block Development Significantly Accelerated by Anton Hi-performance and Environmental Water-base Drilling Fluid The borehole instability is still a major challenge for developing those blocks containing ultra-long shale section...
Rock debris removal technology helps safe and rapid drilling of shale gas horizontal wells With the deepening of the exploration and development of oil and gas fields, the proportion of highly deviated w...

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2021 Annual Results Presentation More

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FINAL RESULTS ANNOUNCEMENT FOR THE YEAR ENDED 31 DECEMBER 2021 More
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2021 Annual Results Announcement More

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NOTICE OF BOARD MEETING More
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VOLUNTARY ANNOUNCEMENT - SUCCESSFUL RENEWAL OF THE... More

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Monthly Return of Equity Issuer on Movements in Securities More
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Monthly Return of Equity Issuer on Movements in Securities More

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STRATEGIC GUIDELINE FOR 2022 More
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Operational Update on the Fourth Quarter of 2021 ... More

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Fourth Quarter 2021 Operational Update Conference Call More
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Monthly Return of Equity Issuer on Movements in Securities More

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VOLUNTARY ANNOUNCEMENT - Won the bid for a shale... More
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Monthly Return of Equity Issuer on Movements in Securities More

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PARTIAL REPURCHASE OF THE NOTES More
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Monthly Return of Equity Issuer on Movements in Securities More

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Operational Update on the Third Quarter of 2021 and Outlook for the Fourth Quarter of 2021 More
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Third Quarter 2021 Operational Update Conference Call More

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Monthly Return of Equity Issuer on Movements in Securities More
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2021 Interim Report More

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Monthly Return of Equity Issuer on Movements in Securities More

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