Operations On July 7, 2021, Hawthorne Energy, LLC acquired Tangle Creek Energy Ltd. As of March 18, 2022, the properties began to operate under the HWN Energy Ltd. name. For emergencies and operations questions please call (403) 648-4900. 2018 ESTMA Report 2019 ESTMA Report 2020 ESTMA Report 2021 ESTMA Report 2022 ESTMA Report