On this review, two conditions have been employed: the Mohr–Coulomb (M–C) criterion along with the multi-weak-airplane energy criterion for shale formations. These are used to conduct study and accomplish the optimization with the failure conditions for shale–sandstone interbedded reservoirs. Lamellar shale oil reservoirs produce millimeter-to-centimeter-scale siltstone and mud shale Successfully Submitted (Awaiting Approval)