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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 18-03B Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss <br />Date Commenced: 1 -Oct -11 Date Completed: 6 -Oct -11 <br />Contractor: Himes Drilling <br />Rig Type: Atlas Copco RD20 <br />Geologist: Doug Allen <br />Date : <br />26 -Oct -11 <br />Toolpusher: Matt Himes <br />Driller: Jim Weatherton <br />Truck Driver: <br />Mike Hibberd <br />Helper: Brandon Y. <br />Kirk Homedew <br />Will Juusola <br />Jimmy L. <br />Coordinates: N. 19518.08 <br />E. <br />35373.62 <br />Location: Township, Range & Section: <br />NE 1/4, Sec. 31, T. 12 S., R. 90 W. <br />Ground Elevation: 8309' <br />Collar Elevation: <br />Geophysical Log Measured From: <br />ground <br />Elevation <br />Total Depth: 2670' <br />Probe Depth: <br />2660' <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: 0-2211' <br />Recovered (Y or N): <br />N <br />Depth: 2155-2496' <br />Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 17" Hammer to 40' <br />(14" surface casing) <br />Main Hole 121/4" PDC from 40-2230' <br />Core: <br />Bottom Hole 8 3/4" Tricone from 2230-2670' <br />Footage Plugged: 0-2670' Cored: NA <br />Drilling Medium: Air: Foam /Water: Mud: Foam Injection: <br />Depths: 0-40' 40-2670' <br />Lost Circulation Depths: NA Regained ? (Y or N): <br />Water Invasion Depth or Intervals: 1700' Estimated Inflow Rates: 5 gpm <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 <br />Hole Cemented ( Y or N ), Type: N No. of Bags: 5 yds for 9 5/8" annulus <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: 7" casing overlaps 56' inside 9 5/8" casing. <br />Tagged gravel at 2506', bottom of 7" casing at 2496'. <br />9 5/8" casing abandoned to surface with 18 cubic yards portland cement slurry June, 2012. <br />Himes Drilling Colorado water well license #1285 <br />