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Ｍｏｒａｎ油田是Ａｓｓａｍ盆地上部油田中开采时间最长的油田之一，Ａｓｓａｍ 盆地是Ａｓｓａｍ－Ａｒａｋａｎ地质区域的一部分。该油田位于印度的东北部，开发于２０世纪５０ 年代后期，属于典型的砂岩油藏，开采层位是渐新世Ｂａｒａｉｌ油层组。截止到目前，该油田已采出原始地质储量的近２９％，日产油达到３５０ｍ３，日产油量最高时能稳定在２５００ ｍ３。近期对该油田进行更深油层的开发，发现了新的含油层，三维地震数据说明不仅渐新世油层是河道砂构造，在更深的始新世油层组也具有含油构造特征。
The Moran field is one of the longest-producing fields in the upper part of the Assam basin, which is part of the Assam-Arakan geologic area. Located in the northeastern part of India, the field was developed in the late 1950s as a typical sandstone reservoir with an Oligocene Barail reservoir. Up to now, the field has harvested nearly 29% of the original geological reserves, daily oil production reached 350m3, the maximum daily output of oil can be stabilized at 2500m3. Recently, a deeper oil layer has been developed in this field and a new oil-bearing formation has been discovered. Three-dimensional seismic data show that not only Oligoceti is a channel sand structure, but also an oil-bearing tectonic feature in the deeper Eocene oil layer.