Structural geology furnishes a field for research in the Mid-Continent region little appreciated by geologists not working in petroleum. The enormous number of well records, 105,000 in Oklahoma and 35,000 in Kansas, together with samples of formations penetrated, furnish information from which structural details may be studied, both in vertical and horizontal directions, in terms of tens of feet rather than of miles. These records, together with surface structure, mapped in minute detail, supply a greater wealth of detailed geological data than is available in any other area of equal size in the world.

Petroleum geologists engaged in detailed intensive studies seldom find occasion to compile regional data and to deduce conclusions therefrom. The present intensive drilling campaign will ultimately cease and operations will be reduced to the scale now prevailing in the Appalachian oil fields. In the meantime the data now available will be scattered and inaccessible. The . . .

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