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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB- LW -04 -02 Project ID.: Elk Creek Mine- Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: BLM <br />Date Commenced: 8- Sep -04 Date Completed: 15- Sep -04 <br />Contractor: Stewart Bros. Rig Type: <br />Gardner - Denver <br />Geologist: Doug Allen Date : <br />21- Sep -04 <br />Toolpusher: Frank Pichardo <br />Driller: J. Barris Truck Driver: <br />B. Joe <br />Helper: P.Pizano <br />F. Yonnie <br />B. Roy <br />E.Martinez <br />Coordinates: N. 12577.5810 E. <br />38277.7780 <br />Location: Township, Range & Section: <br />SE 1/4 Sec. 6, T. 13 S., R. 90 W. <br />Ground Elevation: 8086' Collar Elevation: <br />Geophysical Log Measured From: Ground <br />Elevation <br />Total Depth: 2095' Probe Depth: <br />2090' <br />Fluid Level: NA <br />Casing Type: Main hole- Solid s teel <br />Size: <br />7" <br />Casing Type: Bottom hole- slott flush thread <br />Size: <br />51/2" <br />Depth: 0 -1917' Recovered (Y or N): <br />N <br />Depth: 1870' -2030' Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 121/4" Tri-cone from 0-20'(10" casing) <br />Main Hole 9 7/8" Tri-cone from 20' to 1955' <br />Core: NA <br />Bottom Hole 6 3/4" Tri-cone from 1955' to 2095' <br />Footage Plugged: 2095' Cored: 0 <br />Drilling Medium: Air: Sta -Foam 202/Water: Mud: I Foam Injection: <br />Depths: 0 -20' 20' -2095' <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- 67.1' at 241.85 degrees <br />Hole Cemented( Y or N ),Type: Y <br />Coal Core Sent To: <br />Comments: <br />Annulus volume calc <br />NA <br />No. of Bags: 22 yds. Portland for annulus <br />Interval: to surface <br />Rock Sent To: NA <br />grout slice, and up around out <br />D seam from 2052'- 2069'. Bc <br />to 2047' (5' above seam) with <br />4 bags of cement placed on to <br />80' solid) set at 2030', with 47' <br />Stewart Bros. Drilling: Colora( <br />Pneumatic plug set @ 370' on <br />to of casing. 8 yds. placed trom sunace. <br />)m hole drilled to 2095' for logging tool ra <br />al fines. Plug gel (2 bags, dry) placed on <br />Df gel, to 2030'. Bottom of 5.5" slotted ca <br />terlap inside 7'. <br />water well license # 1141 <br />ig. 19, cemented and abandoned on Auc <br />nes to 2044'. <br />