à ‘X’ area is located in Musi Banyuasin Area, at South Sumatera and a greater part of South Sumatera Basin. By the physiography, South Sumatera Basin is a basin with northwestern-southeastern orientation, bordered by Semangko Fault and Barisan Mountains in southwestern part, Sunda shelf in northwestern part, Tinggian Lampung in southeastern part which is separate Sunda Basin and its basin, and also Dua Belas Mountain and Tigapuluh Mountain in northwestern that separate South Sumatera Basin and Center Sumatera Basin. Shale gas is one of the promising alternatives to fossil fuel. Indonesia’s potential of shale gas is quite significant, with reserves up to 574 TSCF. This type of resource will be able to accommodate the ever growing energy demand in thefuture. Shale gas reserves have been identified in multiple areas such as Sumatera,Java, Borneo, and Papua. The North Sumatera basin itself has a very thick shale layer with high levels of organic matter in Talang Akar Formation which date as far back as the Lower Miocene. The mineralogy of Talang Akar Formation shale is proved to have goodquality shown by its claystone consisting of high levels of clay minerals such asillite, smectite, kaolinite, chlorite, and illite-smectite. This claystone has mediumlevels of carbonate minerals such as calcite, siderite and dolomite, while alsocontaining low levels of quartz associated with small amounts of feldspar, plagioclase, and pyrite with Brittleness Index of 0.50 to 0.74. Index Brittleness may cause reducing its quality (< 40%), and its can make the layer difficult to fractured.