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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 17-03 Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss <br />Date Commenced: 6 -Nov -10 Date Completed: 10 -Nov -10 <br />Contractor: Himes Drilling <br />Rig Type: Atlas Copco RD20 <br />Geologist: Doug Allen <br />Date : <br />5 -Dec -10 <br />Toolpusher: Matt Himes <br />Driller: Jim Weatherton <br />Truck Driver: <br />Kirk Homedew, <br />Helper: Richard M. <br />Sam Homedew <br />Will Juusola <br />Trey H. <br />Coordinates: N. 17892.15 <br />E. <br />35155.84 <br />Location: Township, Range & Section: <br />N1/2, S1/2, Sec. 31, T. 12 S., R. 90 W. <br />Ground Elevation: 8055' <br />Collar Elevation: <br />Geophysical Log Measured From: <br />ground <br />Elevation <br />Total Depth: 2252' <br />Probe Depth: <br />2235' <br />Fluid Level: NA <br />Casing Type: steel T&C <br />Size: <br />9 5/8" <br />Casing Type: sol/slot steel T&C <br />Size: <br />7" <br />Depth: 0-2092' <br />Recovered (Y or N): <br />N <br />Depth: 2022-2193' <br />Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 16" Tricone to 31' <br />(14" surface casing) <br />Main Hole 121/4" PDC from 31-2092' <br />Core: <br />Bottom Hole 8 3/4" Tricone from 2092-2232' <br />Footage Plugged: 0-2232' Cored: NA <br />Drilling Medium: Air: Foam (Water: Mud: Foam Injection: <br />Depths: 0-220' 220-2232' <br />Lost Circulation Depths: NA Regained ? (Y or N): <br />Water Invasion Depth or Intervals: NA Estimated Inflow Rates: <br />Gas Invasion Depth or Interval: NA <br />Geophysical Logging Contractor: Jetwest Geophysical <br />Logs Run: Gamma: Y Neutron: <br />Temperature: Density: Y <br />Resistivity: Y Caliper: Y <br />Other (SP, Foc. Elec., Drift, Dep., Sonic): cement dump bailer/ Gas gun <br />Hole Cemented (Y or N ), Type: N <br />Coal Core Sent To: NA <br />Comments: 7" casi <br />with 5 vds neat cement slur <br />casing ananaon <br />)s 70' inside 9 5/8" casi <br />I gravel at 2201', tagge <br />run to 1700' before cu <br />surface with 4:i cu <br />No. of Bags: <br />Interval: <br />Rock Sent To: NA <br />9 5/8" annulus cemented <br />3ment plug at 2193'. <br />Is/ foam clouded image. <br />148' (siltstone) and <br />ongwall. <br />cement slurry June, 201,' <br />