Visible surface features such as oil seeps, natural gas seeps, pockmarks (underwater craters caused by escaping gas) provide basic evidence of hydrocarbon generation (be it shallow or deep in the Earth). However, most exploration depends on highly sophisticated technology to detect and determine the extent of these deposits using exploration geophysics. Areas thought to contain hydrocarbons are initially subjected to a gravity survey, magnetic survey, passive seismic or regional seismic reflection surveys to detect large-scale features of the sub-surface geology. Features of interest (known as leads) are subjected to more detailed seismic surveys which work on the principle of the time it takes for reflected sound waves to travel through matter (rock) of varying densities and using the process of depth conversion to create a profile of the substructure. Finally, when a prospect has been identified and evaluated and passes the oil company's selection criteria, an exploration well is drilled in an attempt to conclusively determine the presence or absence of oil or gas.
The Energy Information Administration estimates that in 2007 the primary sources of energy consisted of petroleum 36.0%, coal 27.4%, natural gas 23.0%, amounting to an 86.4% share for fossil fuels in primary energy consumption in the world. Non-fossil sources in 2006 included hydroelectric 6.3%, nuclear 8.5%, and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%. World energy consumption was growing about 2.3% per year.
On Thursday, University of Wyoming's Enhanced Oil RecoveryInstitute published the state's first formal of the federal actions, exploring how a new leasing moratorium could affect activity on Wyoming's legacy or conventional oil and gas fields. Conventional oil and gas fields refer to sites developed using traditional drilling methods.
UP Energy, LLC is a private energy company engaged in domestic natural gas and oil exploration, development and production focused on developing its long-life natural gas reserves in the Pinedale and JonahFields of Wyoming's Green River Basin.
is an independent oil and natural gas company focused on steadily growing its reserves, production and cash flow through the acquisition, exploration, development and production of oil, natural gas, and natural gas liquids, or NGLs, in the Permian Basin.