The top story this month continues to be Marathon’s Science Well in Crawford County Michigan. Two weeks ago Marathon cleared a well pad in an area that we told you about first right here. Marathon has contracted Cruz Energy to rig up for a test well that will go 4,700 feet into the Amherstburg. The Amherstburg is part of the Detroit River Group of rocks of Middle Devonian age. The greatest accumulation of the Amherstburg formation is between southern Bay and Roscommon counties where its thickness exceeds 600 feet in some places. About half of its thickness at this thickest point is the Sylvania Sandstone member at the base of the formation. The outstanding characteristic of the carbonate rock in the Amherstburg formation is its relatively dark color which earns it the nickname from many geologists as Continue reading “Michigan Oil & Gas Monthly – September 2015”
Michigan Oil & Gas Monthly – September 2015
