Abstract Production of natural gas in western Kentucky has been minor in comparison to oil production. By far the largest gas reservoir discovered is the Midland gas field in northern Muhlenberg County. Here gas has accumulated in an isolated sand- filled Bethel channel cut to a depth of more than 200 ft into the underlying limestone. The Midland reservoir is from 0.5 to 2 mi wide and 10 mi long. Gas apparently has accumulated on the south (updip) flank of the main channel. At the western tip of the pool the channel turns northwestward, cutting obliquely downdip and thereby limiting hydrocarbon accumulation in that direction. The trap thus appears to be both stratigraph- ic and structural, with the gas confined to the area where the channel parallels the regional strike. Production is best at the western end, where pay thickness is more than 100 ft. Total reserve is estimated to be approximately 165 billion cu ft. The most significant gas-productive areas discovered up to 1962 were the Luzerne, also known as “West Greenville,” and Sharon Consolidated fields, both in Muhlenberg County. These two fields are adjacent but apparently not continuous. The Bethel Sandstone is the reservoir formation in both.