Starch in oil drilling increases viscosity and reduces fluid loss in all water based muds providing filtration control and rheology stability. It encapsulates particles with a protective polymer coating to function as a protective colloid. It is effective as a drilling fluid stabilizer as well as fluid loss reducer when drilling evaporates formation such as anhydrite or salt and when drilling hydratableshales. This non-ionic, natural starch is effective in all make up waters, including high salinity and high hardness brines such as sodium chloride, potassium chloride, magnesium chloride and complex brines. It reduced dispersion of clay particles and stabilizes reactive formulations. We are Manufacturing and controlling Drilling Starch according to API Specification 13A -16.1.1 and 16.1.2.