For Caguán zone, at Florencia sector, undifferentiated Cretaceous show the best source rock qualities. The organic matter contents are excellent (TOC between 7,34 % and 13,36 %), the hydrocarbons potential (S2) is very good (with values between 18,45 and 42,80), organic matter is entering the liquid hydrocarbons window (maturity varying between Ro 0,43% and 0,61%). Generally the organic matter belongs to type-II kerogen (Figure 3). In La Uribe sector, two intervals of the Middle and Upper Members of Macarena Formation show source rock properties varying from good to excellent, with peaks in TOC values, Tmax, S1 and S2 parameters at depths greater than 3300 feet.

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Figure 3