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DAUB & ASSOCIATES, INC. ►� <br />August 11, 2015 <br />Mr. Kent Walter <br />Bureau of Land Management <br />220 East Market Street <br />Meeker, CO 81641 <br />1985 Y2 SOUTH BROADWAY <br />GRAND JUNCTION, CO 81507-9649 <br />(970) 254-1224 <br />FAX (970) 242-8438 <br />email: gjdaub@daubandassociates.com <br />www.daubandassociates.com <br />p. zoiN -any <br />Re: Simple Oil LLC, Lease COC74299 — APD Documents for OSR-1 Oil Shale RD&D Well <br />Mr. Walter: <br />Simple Oil LLC, previously known as Natural Soda Holdings, Inc., plans to drill an Oil Shale <br />RD&D well (OSR-1) in 2016. The OSR-1 well will be located approximately 600 feet <br />southwest of the existing DS -6 ground water monitor well. The OSR-1 well location has been <br />shifted slightly south of the initial location proposed in the 2013 Plan of Development. This <br />new location will center the OSR-1 well and alternate well locations between Natural Soda <br />LLC's future nahcolite solution mining well paths and will be located underneath the <br />intervening pillars. The OSR well pad will be positioned and built such that in the event of <br />mechanical difficulties with OSR-1, or if there is a determination to extend the research project, <br />an offset additional or replacement OSR well or wells may be drilled. <br />Please find attached: <br />• Completed 3160-3 form for OSR-1 <br />• General Location Map and Utility Map <br />• Proposed OSR-1 Well Construction Schematics <br />• Proposed OSR-1 Well Completion Diagram <br />Should you have any questions or comments, please contact me at (970) 254-1224 (o) or <br />(970) 216-1010 (c), or Bob Warneke at (970) 355-4590. <br />Regards, <br />Gerald J. Daub, PG, CPG <br />President <br />Daub & Associates, Inc. <br />Cc: Bob Warneke <br />Projects Director <br />Simple Oil LLC <br />Travis Marshall <br />Colorado Division of Reclamation Mining and Safety <br />File <br />RECEIVED <br />..0 1 8, 2015 <br />V!, -YY ."I OF FRMAMATIOK <br />1; <�.,� arao SAFETY <br />SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />