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  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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Two oil samples ''(Glob alt ='' GA-3 and ''Hyal B ='' HB-2) from two different reservoirs in the East Breaks 160-161 field provide data for [[modeling]] the history of hydrocarbon generation and [[migration]] within this minibasin. Dow et al.<ref name=ch04r29>Dow, W. G., M. A. Yukler, J. T. Senftle, M. C. Kennicutt, and J. M. Armentrout, 1990, Miocene oil source beds in the East Breaks basin, Flex-Trend, offshore Texas: Proceedings, Gulf Coast Section SEPM 9th Annual Research conference, p. 139–150.</ref> report that the East Breaks oils are [[biodegradation|biodegraded]] and mixed lower molecular weight, thermally mature oil. The C₁₀ through C₃₀ alkanes of the GA-3 oil are better preserved than those of the HB-2 oil. This is demonstrated by the higher peaks of C₁₀ through C₃₀ alkanes on the [[gas chromatogram]]s below, suggesting that the stratigraphically deeper GA-3 oil is less degraded and slightly more mature than the stratigraphically shallower HB-2 oil. Neither oil exhibits evidence of evaporative fractionation reported by Thompson<ref name=ch04r95>Thompson, K. F. M., 1987, Fractionated aromatic petroleums and the generation of gas-condensates: Organic Geochemistry, vol. 11, p. 573–590., 10., 1016/0146-6380(87)90011-8</ref> in over 75% of Gulf Coast [[Tertiary]] oils.

Two oil samples ''(Glob alt ='' GA-3 and ''Hyal B ='' HB-2) from two different reservoirs in the East Breaks 160-161 field provide data for [[modeling]] the history of hydrocarbon generation and [[migration]] within this [[minibasin]]. Dow et al.<ref name=ch04r29>Dow, W. G., M. A. Yukler, J. T. Senftle, M. C. Kennicutt, and J. M. Armentrout, 1990, Miocene oil source beds in the East Breaks basin, Flex-Trend, offshore Texas: Proceedings, Gulf Coast Section SEPM 9th Annual Research conference, p. 139–150.</ref> report that the East Breaks oils are [[biodegradation|biodegraded]] and mixed lower molecular weight, thermally mature oil. The C₁₀ through C₃₀ alkanes of the GA-3 oil are better preserved than those of the HB-2 oil. This is demonstrated by the higher peaks of C₁₀ through C₃₀ alkanes on the [[gas chromatogram]]s below, suggesting that the stratigraphically deeper GA-3 oil is less degraded and slightly more mature than the stratigraphically shallower HB-2 oil. Neither oil exhibits evidence of evaporative fractionation reported by Thompson<ref name=ch04r95>Thompson, K. F. M., 1987, Fractionated aromatic petroleums and the generation of gas-condensates: Organic Geochemistry, vol. 11, p. 573–590., 10., 1016/0146-6380(87)90011-8</ref> in over 75% of Gulf Coast [[Tertiary]] oils.

==Oil preservation pattern==

==Oil preservation pattern==