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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 16-07C Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: USFS <br />Date Commenced: 11 -Feb -11 Date Completed: 16 -Feb -11 <br />Contractor: Himes Drilling Rig Type: Atlas Copco RD20 <br />Geologist: Doug Allen Date : <br />23 -Feb -11 <br />Toolpusher: Matt Himes <br />Driller: Jim Weatherton Truck Driver: <br />Kirk Homedew <br />Helper: Richard M. <br />Sam Homedew <br />Will Juusola <br />Trey H./Chad H. <br />Coordinates: N. 16167.0 E. <br />38379.0 <br />Location: Township, Range & Section: <br />SW 1/4, Sec. 32, T. 12 S., R. 90 W. <br />Ground Elevation: 8134' Collar Elevation: <br />Geophysical Log Measured From: ground <br />Elevation <br />Total Depth: 2435' Probe Depth: <br />NA <br />Fluid Level: NA <br />Casing Type: steel T&C <br />Size: <br />9 5/8" <br />Casing Type: <br />Size: <br />Depth: 0-2000' Recovered (Y or N): <br />N <br />Depth: Recovered (Y or N): <br />Bit Information <br />Surface Casing 17" Hammer to 42' (14" surface casing) <br />Main Hole 121/4" PDC from 42-2000' <br />Core: <br />Bottom Hole 8 3/4" Tricone from 2000-2435' <br />Footage Plugged: 0-2435' Cored: NA <br />Drilling Medium: Air: Foam [Water: Mud: Foam Injection: <br />Depths: 0-290' 290-2435' <br />Lost Circulation Depths: NA Regained ? (Y or N): <br />Water Invasion Depth or Intervals: NA Estimated Inflow Rates: NA <br />Gas Invasion Depth or Interval: NA <br />Geophysical Logging Contractor: directional hole- no logging <br />Logs Run: Gamma: <br />Temperature: <br />Resistivity: <br />Other (SP, Foc. Elec., Drift, Dep., Sonic): <br />Hole Cemented (Y or N ), Type: N <br />Coal Core Sent To: NA <br />Comments: No 7" casing- 8 3/4" hole left o <br />Drilled directionally from 290-2000'. Stormed directic <br />romiem <br />Neutron: <br />Density: <br />Caliper: <br />No. of Bags: 11 cubic yds -annulus <br />Interval: to surface <br />Rock Sent To: NA <br />9 5/8" casing abandoned to surface with 24 cubic yards portland cement slurry June, 2012. <br />Himes Drilling Colorado water well license #1285 <br />