Unconventional oil and gas operators are currently facing the challenge of casing lateral buckling and/or deformation during shale gas wells stimulation through hydraulic fracturing. Failure of the casing during this process can lead to huge financial loss, catastrophic consequences and even fatalities depending on the magnitude and circumstance of the incident. An in-depth literature review was conducted, focusing on casing lateral buckling /deformation, factors attributing to casing failure, failure mechanism, and the resulting failure mode...