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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 16-05B Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss <br />Date Commenced: 5 -Dec -10 Date Completed: 23 -Jan -11 <br />Contractor: Himes Drilling Rig Type: Atlas Copco RD20 <br />Geologist: Doug Allen Date : 23 -Jan -11 Toolpusher: Matt Himes <br />Driller: Jim Weatherton Truck Driver: Kirk Homedew Helper: Richard M. <br />Sam Homedew Will Juusola Trey H./Chad H. <br />Coordinates: N. 16256.80 E. 36629.00 <br />Location: Township, Range & Section: SE 1/4, Sec. 31, T. 12 S., R. 90 W. <br />Ground Elevation: 8094' Collar Elevation: <br />Geophysical Log Measured From: ground Elevation <br />Total Depth: 2214' Probe Depth: NA Fluid Level: NA <br />Casing Type: steel T&C Size: 9 5/8" <br />Casing Type: Size: <br />Depth: 0-1413' Recovered (Y or N): N <br />Depth: Recovered (Y or N): <br />Bit Information <br />Surface Casing 16" Tricone to 42' (14" surface casing) <br />Main Hole 121/4" PDC from 42-1413' <br />Core: <br />Bottom Hole 8 3/4" Tricone from 1413-2214' <br />Footage Plugged: 2214' Cored: NA <br />Drilling Medium: Air: Foam [Water: Mud: Foam Injection: <br />Depths: 0-130' 130-2214' <br />Lost Circulation Depths: 2000' Regained ? (Y or N): N <br />Water Invasion Depth or Intervals: 130' Estimated Inflow Rates: 2 qpm <br />Gas Invasion Depth or Interval: NA <br />Geophysical Logging Contractor: Directional hole- no logging. <br />Logs Run: Gamma: Neutron: <br />Temperature: Density: <br />Resistivity: Caliper: <br />Other (SP, Foc. Elec., Drift, Dep., Sonic): <br />Hole Cemented (Y or N ), Type: Y No. of Bags: 6 yds for 9 5/8" annulus <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: Drilled into gob behind longwall. No 7" casing- 8 314" hole left open. <br />Drilled directional from 290-1413'. Bottom of 9 5/8" casing located 205.3' at azimuth 306.1 degrees <br />9 5/8" casing abandoned to surface With 18 yds portland type II cement September, 2011 <br />Himes Drilling Colorado water well license #1285 <br />