In the United States, the mineral estate of most properties were separated from the [[surface estate]] during the 1920s when the rush to develop oil and gas peaked. So, all land records must be searched back to that era to find out who actually owns the mineral rights to a particular property. However, with the advent of [[fracking]], the drilling of oil and gas wells has spread to regions of the nation which had never been considered for drilling in the past. So, property owners are suddenly confronted with offers to lease the mineral interests under their land. | In the United States, the mineral estate of most properties were separated from the [[surface estate]] during the 1920s when the rush to develop oil and gas peaked. So, all land records must be searched back to that era to find out who actually owns the mineral rights to a particular property. However, with the advent of [[fracking]], the drilling of oil and gas wells has spread to regions of the nation which had never been considered for drilling in the past. So, property owners are suddenly confronted with offers to lease the mineral interests under their land. |