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Oxbow Mining LLC <br /> Elk Creek Mine <br /> Hole Number: GVB 16-01 D Project ID.: Elk Creek Mine Gob Vent Boreholes <br /> Lease Number: COC-61357 (State or Federal) Surface Owner: Hotchkiss <br /> Date Commenced: 23-Nov-10 Date Completed: 4-Dec-10 <br /> Contractor: Himes Drilling Rig Type: Atlas Copco RD20 <br /> Geologist: Doug Allen Date: 5-Dec-10 Toolpusher: Matt Himes <br /> Driller: Jim Weatherton Truck Driver: Kirk Homedew Helper: Richard M. <br /> Sam Homedew Will Juusola Trey H. <br /> Coordinates: N. 17218.00 E. 33738.20 <br /> Location: Township, Range&Section: SE 1/4, Sec. 31,T.12 S.,R.90 W. <br /> Ground Elevation: 8121' Collar Elevation: <br /> Geophysical Log Measured From: ground Elevation <br /> Total Depth: 2252' Probe Depth: NA Fluid Level: NA <br /> Casing Type: steel T&C Size: 9 5/8" <br /> Casing Type: sol/slot steel T&C Size: 7" <br /> Depth: 0-1292' Recovered(Y or N): N <br /> Depth: 1292-2252' Recovered(Y or N): N <br /> Bit Information <br /> Surface Casing 16"Tricone to 21' (14"surface casing) <br /> Main Hole 121/4" PDC from 21-1292' <br /> Core: <br /> Bottom Hole 8 3/4"Tricone from 1292-2252' <br /> Footage Plugged: 0-2252' Cored: NA <br /> Drilling Medium: Air: Foam/Water: Mud: Foam Injection: <br /> Depths: 0-320' 320-2252' <br /> Lost Circulation Depths: NA Regained? (Y or N): <br /> Water Invasion Depth or Intervals: Estimated Inflow Rates: <br /> Gas Invasion Depth or Interval: 1292-2252' <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:3 yds for 9 5/8"annulus <br /> Interval:to surface <br /> Coal Core Sent To: NA Rock Sent To: NA <br /> Comments: No 7"casing;left 8 3/4"hole open from 1292-2252',at estimated mine roof, <br /> 121/4"directional hole steered by Scientific Drilling from 320-1292'(to point where angle fully built) <br /> then motor tripped out to avoid sticking tools in broken gob. Bottom of 121/4" hole located ai <br /> azimuth 101 degrees, 183'from surface location. No circulation loss during drilling. <br /> 9 5/8"casing abandoned to surface with 24 yds portland type II cement October, 2011. <br /> Himes Drilling Colorado water well license#1285 <br />