Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000

Parent map for Ector County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.

Inset map for Ector County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,000.

Parent map for Ector County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.

Inset map for Ector County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:3,000.

Parent map for Crane County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:20,000.

Parent map for Midland County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.

Inset map for Ector County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,000.

Parent map for Ector County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:100000

This report presents the results of geological characterization studies in a typical Grayburg reservior in the Permian Basin. The work applies geological models developed in outcrop studies to better constrain the geological reservoir framework and heterogeneity in a typical Grayburg reservoir, The South Cowden Grayburg reservoir. This framework provides a strong basis for defining petrophysical and flow unit properties in the reservior and serves as a prototype model for other Grayburg reservoir characterization studies. The Grayburg Formation in the South Cowden field of eastern Ector County displays an internal stratal architecture that typifies Grayburg shallow-water platform successions throughout the Permian Basin. Study of core and wireline logs in South Cowden field documents three orders of cyclicity in the Grayburg. The entire Grayburg constitutes a single long-duration accommodation cycle that commenced with a major sea-level rise. Two major diagenetic events strongly affect reservoir character in some parts of the field. Recrystallized dolomite is developed along vertical burrows in highly cyclic mud-dominated packstones and wackestones of the HFS 4 Grayburg highstand succussion. Later alteration and removal of anhydrite are focused in structurally low sections along the eastern and southern margins of the field.

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000

Report on economic forecast and outlook for the West Texas Region describing expected economic change for various industries, employment growth, and county-level analyses.

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:100000