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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 17-02C Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss <br />Date Commenced: 24 -Aug -11 Date Completed: 3 -Sep -11 <br />Contractor: Himes Drilling Rig Type: Atlas Copco RD20 <br />Geologist: Doug Allen Date : <br />26 -Oct -11 <br />Toolpusher: Matt Himes <br />Driller: Jim Weatherton Truck Driver: <br />Mike Hibberd <br />Helper: Nick D. <br />Kirk Homedew <br />Will Juusola <br />Jimmy L. <br />Coordinates: N. 18128.41 E. <br />34310.34 <br />Location: Township, Range & Section: <br />SW 1/4, Sec. 31, T. 12 S., R. 90 W. <br />Ground Elevation: 8140' Collar Elevation: <br />Geophysical Log Measured From: ground <br />Elevation <br />Total Depth: 2379' Probe Depth: <br />2355' <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: 0-2076' Recovered (Y or N): <br />N <br />Depth: 1993-2343' Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 17" Hammer to 40' (14" surface casing) <br />Main Hole 121/4" PDC from 40-2076' <br />Core: <br />Bottom Hole 8 3/4" PDC from 2076-2379' <br />Footage Plugged: 0-2379' Cored: NA <br />Drilling Medium: Air: Foam [Water: Mud: Foam Injection: <br />Depths: 0-40' 40-2379' <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 <br />Hole Cemented (Y or N ), Type: N No. of Bags: 6 yds for 9 518" annulus <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: 7" casing overlaps 83' inside 9 5/8" casing. <br />Tagged gravel at 2352', bottom of 7" casing at 2343'. <br />Attempted coal log, but unable to get below D2 rider. Gravel backfill and cement dump <br />bailer run to 2355'. D2 depth determined to be 2360' +/- 3' based on driller info and <br />adjacent holes. Bottom of 9 5/8' casing located 406' at azimuth 78.54 degrees. <br />9 5/3" casing abandoned to surface with 22 cubic yards portland cement slurry July, 2012. <br />Himes Drilling Colorado water well license #1285 <br />