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Permalink Reply by Skip Peel - Mineral Consultant on December 4, 2012 at 4:33

Yes.  Don't think of the tract based strictly on its surface area and shape.  Think of it as a shaft going forever downward.  Under the surface area of the tract there can be a unit for a formation 1000' to 2000' in depth,  another 2500' to 3500', another 4000' to 5000', etc.  Units have vertical dimensions in addition to their horizontal surface footprint.  Each of these units, in addition to a specific depth, may have varying sizes of surface footprints that same example tract may be a part of.  Shallow oil units can be quite small 160 or 320 acres for example while deeper gas units are generally larger as more area can be drained in theory.   Therefore you get gas units 320, 640, 960, 1280 acres.

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Permalink Reply by Ken Boone on December 4, 2012 at 4:51

thank you

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Permalink Reply by Ken Boone on December 4, 2012 at 7:00

How do I find out which companies has included a particular tract of land in their unit?

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Permalink Reply by Skip Peel - Mineral Consultant on December 4, 2012 at 8:44

In N LA drilling units are geographic meaning they are based on sections.  A quarter of a section (160 acres), half (320), whole (640).  Unit boundaries may also cross section boundaries.  For example a 640 acre unit could be the east half of section 6 and the west half of Section 5.  First look for wells in the section where your tract is located.  All unit wells will have a name beginning with the unit designation and followed by the well name.  For example PET RA SUB;Joe Blow #1.  To find a plat for unit PET RA RUB find the field code which is contained in the SONRIS Lite well file and go to SONRIS Classic, search by Field Order, enter the 4 digit code for the field then open the Field Order for PET RA SUB.

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Permalink Reply by Ken Boone on December 4, 2012 at 10:39

thanks

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