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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 13 (1929)

Issue: 7. (July)

First Page: 779

Last Page: 797

Title: Oil Fields and Structure of Sweetgrass Arch, Montana

Author(s): Thomas B. Romine (2)

Abstract:

The oil fields of the Sweetgrass arch are so situated geographically that their development has been unaffected by the general depression of the oil business during the past two years. For this reason there has been considerable activity and attempts have been made, and are being made, to locate new pools.

The oil in the Sweetgrass arch fields occurs locally on minor folds on the arch, and the greater part of the production is at the top of the Madison limestone (Mississippian). Productivity is determined largely by the existent porosity at the top of the Madison.

Large areas on the Sweetgrass arch remain untested, especially those in which surface structure is obscured by glacial drift. Such areas are worthy of intelligent prospecting in an attempt to locate local structures.

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