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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB 11-01B Project ID.: Elk Creek Mine Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: USFS <br />Date Commenced: 11- Aug -07 Date Completed: 1- Sep -07 <br />Contractor: Stewart Bros. <br />Rig Type: Failing 2500 Rig 4 <br />Geologist: Doug Allen <br />Date : 15- Jan -08 Toolpusher: <br />Justin Barns <br />Driller: Bryan Joe <br />Truck Driver: J. Billy Helper: <br />S. Platero <br />Bryan Tulley <br />T. Martinez <br />C. Charley <br />Earl Martinez <br />D. Hudson <br />0. Chacho <br />Coordinates: N. 19852.34 <br />E. 27335.57 <br />Location: Township, Range & Section: <br />NE 1/4 Sec. 35, T. 12S., R, 90W. <br />Ground Elevation: 8193' <br />Collar Elevation: <br />Geophysical Log Measured From: <br />Ground Elevation <br />Total Depth: 2220' <br />Probe Depth: 2212' Fluid Level: <br />NA <br />Casing Type: steel, T &C <br />Size: 9 5/8" <br />Casing Type: steel, FJ <br />Size: 7 "(5 slotted, 5 solid) <br />Depth: 9 5/8 ": 0 -2000' Recovered (Y or N): N <br />7 ": 1952 -2152' <br />N <br />Bit Information <br />Surface Casing <br />Main Hole <br />Core: <br />Bottom Hole <br />to 20'; (14" su <br />12 1/4" Tricone <br />8 3/4" Tricone to 2220' <br />Footage Plugged: 2220' <br />Drilling Medium: Air: <br />Depths: 0 -20' <br />Lost Circulation Depths: <br />Water Invasion Depth or Intervals: <br />Gas Invasion Depth or Interval: <br />Cored: NA <br />Foam/Water: Mud: Foam Injection: <br />20 -2220' <br />NA Regained ? (Y or N): <br />NA Estimated Inflow Rates: <br />2180 -2195' <br />Geophysical Logging Contractor: Jet West Geophysical, LLC <br />Logs Run: Gamma: X Neutron: <br />Temperature: Density: X <br />Resistivity: X Caliper: X <br />Other (SP, Foe. Elec., Drift, Dep., Sonic): Deviation: 45' @ 235 deg. <br />Hole Cemented (Y or N ), Type: Y <br />No. of Bags: 10 yds portland for 9 5/8 annulu <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: Drilled 8 3/4" pilot hole to verify mineable thickness, then reamed <br />12 1/4" to 2000' for 9 5/8" casing. Cuttings filled bottom hole durinq reaming, cleane out to <br />9' cement plug from 2152 - 2161'. Bottom of 7" slotted casing 30' above D2 seam (2182- 21931. <br />Rig 45 redirected on 8/20 to begin GVB 09 -02, bottom hole completed by Rig 48 on 9/1/07. <br />9 5/8" casing abandoned to surface with 24 cubic yards portland type 11 cement July, 2008. <br />