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The purpose of this study is to determine the oil characteristics consisting of the source of the organic material and depositional environment in which oil samples that charged the reservoir develop and the depositional environment of the potential reservoir of TAF in the "AMP" Field. Oil characteristics analysis used geochemical data of oil samples from the TAF using biomarker data from GC/GCMS namely the Pristane/Phytane (Pr/Ph) value ratio, Pristane/nC17 (Pr/nC17), Hopane/Sterane, C27 Sterane, C28 Sterane, C29 Sterane, and carbon isotope data were showing the depositional environmental conditions in which oil samples develop. Subsurface data such as core, well logs, mud logs and petrography have an excellent resolution to determine lithology, texture, sedimentary structure and composition of rocks that can be used to determine the depositional environment by integrating with biostratigraphy data. Petrography data and RCAL were used to determine porosity and permeability. The analysis of the value from the Pr/Ph ratio with Pr/nC17 show that oil samples are developed in an environment of terrestrial oxic conditions, and are supported by the comparison of Hopane/Sterane values with Pr/Ph ratio, which shows that samples were deposited in an environment of the highly oxidizing terrestrial condition. It can be interpreted that the oil sample has an organic material source dominantly derived from a high level of vegetation based at the terrestrial environment on the triangle C27-C28-C29. Carbon isotope data also show that oil samples have a dominant source of organic material from terrestrial. Based on the core, well logs, mud logs, petrography, and biostratigraphy analysis, depositional of reservoir rock is a subaqueous distributary channel that formed in the Early Miocene age (NN1-NN3). Petrographic observation shows that subaqueous distributary channel sandstones as a reservoir rock have visible porosity values from 5.6% to 12.8% (poor to fair), RCAL data shows that measured porosity has values from 7.2% to 24.9% (fair to very good) and permeability from 0.03 mD to 654 mD.