Example 1

Texas Gulf Coast, Miocene Upper Frio Sandstone

Example 2

Texas Gulf Coast, Miocene Lower Frio Sandstone

Example 3

U.S. Gulf Coast Sandstone -- A transition zone?

Example 4

Illinois Basin, Ste. Genevieve Limestone, oolitic carbonate reservoir with microporosity

Example 5

Illinois Basin, Aux Vases Sandstone

Example 6

Colorado, Champlin #8 McCormick 49-3

Example 7

Wyoming Minnelusa “B” Sandstone

Example 8

Wyoming, Muddy Sandstone, Collums Field, Pan Am A-2 Norfolk

Example 9

Oklahoma, Middle Pennsylvanian Red Fork sandstone

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