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Utopia Gas and Oil Field, Liberty County, Montana, el. 3,409 feet (1,039 West Dome Cat Creek Oil Field , Petroleum County, Montana , 47°04′02″N 107°59′50″W / 47.06722°N 107.99722°W / 47.06722; -107.99722 ( West Dome Cat Creek Oil Field ) , el. 2,766 feet (843
The basin's oil and gas fields are found in a wide range of geologic ages, as indicated by the generalized stratigraphic column. [4] In 1913, shallow gas was discovered in an Upper Cretaceous sandstone on the Cedar Creek Anticline, and oil was discovered on the same anticline in 1936. [5]
The great increases in oil and gas production have exceeded the area's pipeline capacity to transport hydrocarbons to markets. There is only one refinery in the area. As a result, the oil and gas prices received have been much lower than the normal North American index prices of West Texas Intermediate for oil and Henry Hub for gas. [70]
Central Montana Alkalic Province became popularized in the oil industry in the early 1900s. The Ohio Oil Company was the first company to create a permanent oil field in central Montana. [ 12 ] This was accomplished by exploring the Elk Basin from Wyoming into central Montana.
Elm Coulee Oil Field was discovered in the Williston Basin in Richland County, eastern Montana, in 2000. It produces oil from the Bakken formation and, as of 2007, was the "highest-producing onshore field found in the lower 48 states in the past 56 years." [2] By 2007, the field had become one of the 20 largest oil fields in the United States ...
The estimate by the USGS projects that 7.4 billion barrels of oil can be recovered from the Bakken and Three Forks formations and 6.7 trillion cubic feet of natural gas and 530 million barrels of natural gas liquids using current technology. [4] [5] [6]
There is a recent resurgence in oil and gas production as a result of horizontal drilling and hydraulic fracturing. This resurgence is occurring mainly in the Wyoming portion of the basin, which is historically known as the source of the basin's oil. In 2009, a low of 38,000 barrels of oil per day were produced in the basin.
The geology of Montana includes thick sequences of Paleozoic, Mesozoic and Cenozoic sedimentary rocks overlying ancient Archean and Proterozoic crystalline basement rock. . Eastern Montana has considerable oil and gas resources, while the uplifted Rocky Mountains in the west, which resulted from the Laramide orogeny and other tectonic events have locations with met