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Oil and gas well guides

• Look up an oil or gas well by API number: What each part of an API number means, the code for every state, and how to search one.
• Find oil and gas wells near your property: List every well within half a mile to 10 miles of your land, and what each status means.
• Texas RRC GIS Viewer vs. WellheadMap: When to use the Railroad Commission's own map, and when WellheadMap is faster.
• Ohio oil and gas well locator: Search 238,601 Ohio well records by API number, county, operator or map.
• WellheadMap vs. TetraSoft Atlas: Coverage, pages and plans side by side.