Although Kentucky only represents a small percentage of total US oil and US natural gas reserves, the state contains pockets of high quality reserves mainly found within the eastern Central Appalachian Basin and in the western Illinois Basin. Kentucky is host to two refineries, located in Catlettsburg and Somerset. The refineries are supplied by the Capline Pipeline and regional production in Kentucky, Tennessee, and West Virginia.
A study by The Kentucky Geological Survey (KGS) indicated that the original mobile oil in place in Kentucky was more than 1.7 billion barrels; the remaining mobile oil in place is estimated to be more than 1.3 billion barrels. The Lower Mississippian Weir sandstone of eastern Kentucky accounts for approximately 41 percent of the total remaining mobile oil in place.
Estimates of remaining oil in existing fields, heavy oil in the form of tar sands, and natural gas in the Devonian shale for a total resource of nearly 40 quadrillion Btu. Unproven or speculative resources may represent an additional 135 quadrillion Btu for an estimated total oil and gas resource of more than 174 quadrillion Btu.
| Resource Category | Amount | Units | Quadrillion Btu |
|---|---|---|---|
| In known fields | |||
| Remaining oil in place | 1.32 | billion bbl | 7.6 |
| Tar Sand | 3.42 | billion bbl | 19.8 |
| Devonian shale gas | 12.00 | tcf | 12.0 |
| Subtotal for known fields | 39.5 | ||
| Speculative | |||
| Coalbed Methane | 0.848 | tcf | 0.8 |
| Devonian shale gas | 112.0 | tcf | 112.0 |
| Mississippian natural gas | 0.30 | tcf | 0.3 |
| Cambrian natural gas | 0.5 | tcf | 0.5 |
| Other oil | 0.68 | billion bbl | 4.0 |
| Subtotal for speculative resources | 117.6 | ||
| TOTAL BTU | 157.1 | ||
Ref. EIA, Official Energy Statistics from the U.S. Govt. & Kentucky Geological Survey.