Retraction: Mwakipunda, G. C., E. E. Nyakilla, J. Sanford, and F. Mwizarubi. 2022. “${\mathrm{CO}}_2$ Sequestration and Enhanced Shale Gas Recovery by ${\mathrm{CO}}_2$ Injection: Numerical Simulation Method.” J. Energy Eng. 148 (2): 04022007. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000833

The paper titled “${\mathrm{CO}}_2$ Sequestration and Enhanced Shale Gas Recovery by ${\mathrm{CO}}_2$ Injection: Numerical Simulation Method,” published online on February 15, 2022, has been retracted at the request of the authors. The authors discovered data-processing software errors that have affected the accuracy of the conclusions made in the paper. The authors regret these errors.