--> Figure 12

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Figure 12. Conclusions from drilling.

  • Structural geometries similar to northern Utah thrust belt

  • Jurassic Twin Creek and Navajo reservoirs

  • No marine Cretaceous source rocks in subthrust position

  • What was source of oil and gas shows?

    • Jurassic Arapien Shale

    • Permian Park City-Phosphoria Formation

    • Permian Toroweap Formation

    • Mississippian strata

As the result of Placid’s drilling program and wells drilled by other operators, we could not demonstrate marine Cretaceous source rocks in a subthrust position. Placid began investigating other possible source rocks in Mississippian, Permian, and Jurassic strata.