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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB- LW -03 -02 Project ID.: Elk Creek Mine- Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: BLM <br />Date Commenced: 26- Aug -04 Date Completed: 7- Sep -04 <br />Contractor: Stewart Bros. Rig Type: <br />Gardner - Denver <br />Geologist: Doug Allen Date : <br />10- Sep -04 <br />Toolpusher: Frank Pichardo <br />Driller: J. Bards Truck Driver: <br />B. Joe <br />Helper: P.Pizano <br />F. Yonnie <br />B. Roy <br />E.Martinez <br />Coordinates: N. 11724.4950 E. <br />37680.6710 <br />Location: Township, Range & Section: <br />SE 1/4 Sec. 6, T. 13 S., R. 90 W. <br />Ground Elevation: 8056' Collar Elevation: <br />Geophysical Log Measured From: Ground <br />Elevation <br />Total Depth: 1990' Probe Depth: <br />1993' <br />Fluid Level: NA <br />Casing Type: Main hole- Solid s teel <br />Size: <br />7 5/8" <br />Casing Type: lottom hole- slotte <br />Size: <br />5 1/2" <br />Depth: 0 -1840' Recovered (Y or N): <br />N <br />Depth: 1786-1946' Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 141/4" Td -cone from 0 -17' (12" casing) <br />Main Hole 9 7/8" Td -cone from 17' to 1840' <br />Core: NA <br />Bottom Hole 6 3/4" Td -cone from 1840' to 1993' <br />Footage Plugged: 1993' Cored: 0 <br />Drilling Medium: Air: Sta -Foam 202/Water: Mud: Foam Injection: <br />Depths: 0 -20' 20' -1993' <br />Lost Circulation Depths: NA Regained ? (Y or N): NA <br />Water Invasion Depth or Intervals: NA Estimated Inflow Rates: NA <br />Gas Invasion Depth or Interval: NA <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, Foc. Elec., Drift, Dep., Sonic): Deviation -17.2' at 255.75 degrees <br />Hole Cemented (Y or N ), Type: Y No. of Bags: 20 bags + 5 yds. for annulus <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: <br />20 bags cement placed on bottom and allowed to set to prevent redi -mix from coming up inside <br />7 5/8" casing. 5 yds. redi -mix slurry placed from surface. <br />D2 seam from 1957' - 1972'. Bottom hole drilled to 1990' for logging tool rattail. Hole cemented <br />back up to 1946' (11' above coal). <br />160' of 5 1/2" slotted casing set on bottom loose to cave along with gob- 54' overlap inside 7 5/8 ", <br />Stewart Bros. Drilling: Colorado water well license # 1141 <br />Pneumatic plug set Q 290' on Au g. 19, cemented to surface and abandoned on Aug. 24, 2005. <br />