This map shows the oil and natural gas wells across the United States. Oil and Natural Gas Well: A hole drilled in the earth for the purpose of finding or producing crude oil or natural gas; or producing services related to the production of crude or natural gas. Geographic coverage includes the United States (Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, Montana, North Dakota, Nebraska, Nevada, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wyoming) as well Oil and Natural Gas wells in the Canadian provinces of British Columbia and Manitoba that are within 100 miles of the country's border with the United States. According to the Energy Information Administration (EIA) the following states do not have active/producing Oil or Natural Gas Wells: Connecticut, Delaware, District of Columbia, Georgia, Hawaii, Iowa, Idaho, Massachusetts, Maine, Minnesota, North Carolina, New Hampshire, New Jersey, Rhode Island, South Carolina, Vermont, and Wisconsin. Some states do have wells for underground Natural Gas storage facilities where these have been identified they were included. This layer is derived from well data from individual states and provinces and United States Agencies. This layer is complete for the United States but further development of data missing from two Canadian provinces and Mexico is in process. This update release includes an additional 497,036 wells covering Texas. Oil and gas exploration in Texas takes advantage of drilling technology to use a single surface well drilling location to drill multiple bottom hole well connections to extract oil and gas. The addition of Well data from Texas results in the addition of a related table to support this one surface well to many bottom hole connections. This related table provides records for Wells that have more than one bottom hole linked to the surface well. Sourced from the HIFLD Open Data Portal for Energy.

These data show the elevation in feet above mean sea level of the base and top, the extent, the elevation in feet above mean sea level for the potentiometric surface, and the concentration in milligrams per liter (mg/L) of total dissolved solids in ground water of the Dakota aquifer in Kansas. The data presented can be used to delineate the dominant features of the regional flow system within the Dakota aquifers. Such information is valuable in studies focusing on the management of water resources in the Dakota aquifers and other hydraulically connected sources of water. This data is from the Kansas Geological Survey - Geohydrology. The Dakota aquifer consists of sandstone bodies in the Cretaceous Dakota Formation and Cheyenne Sandstone. The coverages were developed from 1:100,000-, 1:175,000-, 1:500,000-, and 1:1,000,000-scale information. The data used to construct the top and base altitude coverages are from oil and gas exploration and production wells penetrating the Dakota aquifer. The data used to map the altitudes consist primarily of gamma ray logs and supplemented by drillers' logs in the Salina basin of north-central Kansas.