About the Oil & Gas Well Shapefile

Copyright

Data and images in this distribution are copyrighted (2005–2008) by the Kentucky Geological Survey, University of Kentucky. The user is granted the right to use these data to produce maps, charts, and reports. The user is further granted the right to provide copies of the oil and gas well-data shapefiles provided:

1. The data are distributed in their original form, as acquired from the Kentucky Geological Survey or downloaded from its website.
2. This documentation, including the notice of copyright and disclaimer, are provided without modification.

If you have acquired these data from a third party, the Kentucky Geological Survey invites you to visit our website.

Disclaimer

Data in this file are presented as-is with no warranty either expressed or implied as to the completeness or accuracy of any location or well status. Data on file at the Kentucky Geological Survey are submitted by well operators under requirements established by Kentucky Revised Statute 353. The producing or abandoned status of any well is dependent on the completion type reported by the operator on the well log and completion report, on the availability of a plugging affidavit, and on other information or maps on file in the Public Information Center of the Kentucky Geological Survey.

Some wells in the database have duplicate locations (sometimes more than one well at a given location). As in the case of workovers and deepenings of existing wells, this is intended. However, in the recent conversion of our database to new software on a new server, some valid locations were inadvertently duplicated to wells that have no location. These wells are being identified and corrected. Suspect invalid duplication if there are significantly more than four or five entries at a given location and the location is in the middle of a 1-minute or 5-minute Carter coordinate section or the middle of a 7.5-minute quadrangle. Your assistance in this matter is requested and appreciated.

Data Vintage

The oil and gas well data are typically updated on a monthly basis. To determine when the data were last updated, check the extract date in the file kyog_info.txt included with each data distribution.

A Note on the Wells Included

The wells in this distribution include only those wells for which a complete Carter coordinate location is available — that is, only wells for which latitude and longitude can be calculated. For most areas in Kentucky there are wells for which we have insufficient location data to determine latitude and longitude. To obtain data for wells for which only the county, 7.5-minute quadrangle, or partial Carter coordinate are known, copies of the electronic data must be obtained directly from KGS.

Production Data

Limited production data by well are available at the Kentucky Division of Oil and Gas website. Oil and gas production data by county are available in the Division's Technical Information Library.

Datum

Both shapefiles are projected using the North American Datum of 1983 (NAD83). Location data in the attributes include latitude and longitude in both NAD27 and NAD83. The shapefile kyog_dd.shp was created using the fields Rec_Lat83 and Rec_Lng83.

The attribute file (*.dbf) can be loaded into ArcView as a table, and the fields Rec_Lat27 and Rec_Lng27 can be used to create a shapefile projected to the NAD27 datum. Latitude and longitude are expressed as decimal degrees. By convention, west longitude is expressed as a negative number.

Base Map Data

These locations are best used posted on a base map. Base maps for displaying these data may be downloaded from the KGS website:

• Links to many Kentucky base maps
• State, county, and topo boundaries
• Surface geology, faults, and the Carter coordinate grid system

A Note on Samples Available

The Kentucky Geological Survey maintains a collection of oil and gas well samples at the KGS Earth Analysis Research Library (EARL) where samples acquired during drilling or augering are catalogued and stored. These samples are available for inspection and limited analysis. For information, contact staff at the EARL at 859-389-8810.

Components of the KYOG_* Shapefile

Except for their projections, the kyog_dd and kyog_1z shapefiles have the same components. This documentation refers to both as KYOG_*, where the asterisk specifies the projection suffix.

KYOG_* is a zipped archive containing an ArcView shapefile with nearly 150,000 oil and gas well locations in Kentucky. The data may be viewed with ArcGIS, QGIS, or any software that supports shapefiles. The archive contains the following files:

Data Access & Import

Importing the *.dbf file to Microsoft Access

Microsoft Access 2013 and later dropped support for dBase format files, so the *.dbf attribute file cannot be opened or imported directly. To import the data to Access: open the *.dbf file in Excel first (verify all records were retrieved), save as *.xlsx, then open or import that Excel file into Access.

Custom data requests

Additional details for each well are available in electronic form. Subsets of the data may be specified by county, Carter coordinates, quadrangle, lat/lon bounded areas, depth of penetration, available records, and other parameters. For example, a database of wells in Leslie and Perry Counties that penetrate the Devonian shale or deeper zones and have lithodensity logs may be created.

There is a charge for some custom data requests. For information and cost, contact Carrie Pulliam at 859-323-0543. MasterCard and VISA are accepted.

Field Reference

Data supplied for each well in the KYOG_* shapefile attribute table:

Plot Symbol Key

The plot symbol codes in this dataset have been generalized from the results available in the main Oil and Gas Well Record Database.

By state law, data for wells permitted as stratigraphic tests are held permanently confidential unless released by the operator directly to KGS and designated as publicly available. Wells designated "STR" in this file have been publicly released. There may be a few stratigraphic tests for which a producing interval is reported; these wells are assumed to be abandoned.

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