The discovery of oil at Urania is of two-fold importance, (i) because of the struc-tural relationship with the Angelina-Caldwell monoclinal flexure and (2) because it is the first production of oil from beds of Tertiary age in northern Louisiana. This dis-covery led to an extensive drilling program along the Angelina-Caldwell flexure during the year 1926 when 225 wildcat wells were drilled. No new oil production was found but the Richland gas field was opened as the indirect result of this drilling program.
Figures & Tables
Structure of Typical American Oil Fields, Volume I
Modern petroleum geology in the United States had its beginning in the first decade of the 20th Century when the U.S. Geological Survey began mapping the structure of the rocks in and near old fields in order to discover the various types of structural conditions under which oil and gas are trapped. Structural geology has evolved as a branch of the broader science far more rapidly than have methods of mapping the attitude of rocks at the surface. This volume, published in the late 1920s, was designed to afford authoritative and modern descriptions of the structure of typical oil fields in the United States. Each of the 30 fields contained here is described by an author who is intimately familiar with the available data. The relationship of structure at the surface and at depth for different terranes is clearly set forth wherever the strata are not parallel. Fields include: McKittrick, California; Fairport, Kansas; Urania, Louisiana; Artesia, New Mexico; Burbank, Oklahoma; Cabin Creek, West Virginia; and Luling, Texas.