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Oxbow Mining LLC <br />Elk Creek Mine <br />Hole Number: GVB- LW -04 -01 Project ID.: Elk Creek Mine- Gob Vent Boreholes <br />Lease Number: COC -61357 (State or Federal) Surface Owner: BLM <br />Date Commenced: 10- Aug -04 Date Completed: 17- Aug -04 <br />Contractor: Stewart Bros. Rig Type: Gardner - Denver <br />Geologist: Doug Allen Date : 15- Sep -03 Toolpusher: Frank Pichardo <br />Driller: J. Barris Truck Driver: B. Joe Helper: Wilburn <br />F. Yonnie B. Roy C. Delgarito <br />Coordinates: N. 13569.4927 E. <br />33640.9018 <br />Location: Township, Range & Section: <br />NW 1/4 Sec. 6, T. 13 S., R. 90 W. <br />Ground Elevation: 7093' Collar Elevation: <br />Geophysical Log Measured From: Ground <br />Elevation <br />Total Depth: 1075 Probe Depth: <br />1067 Fluid Level: NA <br />Casing Type: Main hole- Solid s teel <br />Size: 7 5/8" <br />Casing Type: fottom hole- slotte <br />Size: 51/2" <br />Depth: 0 -910' Recovered (Y or N): <br />N <br />Depth: 831' -911' Recovered (Y or N): <br />N <br />Bit Information <br />Surface Casing 14 1/4" Tri-cone from 0-40'(12" casing) <br />Main Hole 9 7/8" Tri-cone from 40' to 910' <br />Core: NA <br />Bottom Hole 6 3/4" Tri-cone from 910' to 1075' <br />Footage Plugged: 1075' Cored: 0 <br />Drilling Medium: Air: Sta -Foam 202/Water: Mud: I Foam Injection: <br />Depths: 0 -40' 40 -1075' <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: unknown- 0.8 -3.2% Q wellhead <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- 8' N. of s urface location <br />Hole Cemented (Y or N ), Type: Y No. of Bags: 20, + 6 yds portland for annulus <br />Interval: to surface <br />Coal Core Sent To: NA Rock Sent To: NA <br />Comments: First 80' of 7 5/8" casing dropped to botto of hole; retrieved w/ oilfield spear and ok to use <br />20 bags cement placed around bottom of 7 5/8" casing, topped off with 6 yds. Redi -mix, all poured from surface. <br />Bottom hole drilled thru D seam to verify elevation- survey mistake results in hitting D seam 63' high. <br />Resurvey shows hole still suitably located over panel. Bottom of solid casing lies 37' above coal (910'). <br />Bottom hole cemented up to 911'; 80' of 5 1/2" slotted casing set with bottom Q 911'. <br />Stewart Bros. Drilling: Colorado water well license # 1141 <br />Pneumatic plug set Q 73' and abandoned to surface with 0.85 cubic yds portland type 11 cement August, 2005. <br />