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Oxbow Mining LLC <br /> Elk Creek Mine <br /> Hole Number: GVB-LW04-03 Project ID.: Elk Creek Mine-Gob Vent Boreholes <br /> Lease Number: COC-61357 (State or Federal) Surface Owner: BLM <br /> Date Commenced: 24-Jan-05 Date Completed: 5-Feb-05 <br /> Contractor:-limes Drilling, Inc Rig Type: PortaDrill TKT2000/Rig R-8 <br /> Geologist: Doug Allen Date: 5-Feb-04 Toolpusher: Tim/Kevin Himes <br /> Driller: Sam Homedew Truck Driver: Kirk Homedew Helper: Matt Himes <br /> Coordinates: N. 36493.2130 E. 12902.8610 <br /> Location: Township, Range&Section: NE 1/4 Sec. 6,T. 13 S., R.90 W. <br /> Ground Elevation: 7156' Collar Elevation: <br /> Geophysical Log Measured From: Ground Elevation <br /> Total Depth: 1081' Probe Depth: 1080, Fluid Level: 1050' <br /> Casing Type: Main hole-Solid steel,T&C Size: 7" <br /> Casing Type: Bottom hole-slotted,flush thread Size: 51/2" <br /> Depth: 0-841' Recovered(Y or N): N-cemented <br /> Depth: 718'-1061' Recovered(Y or N): N-set on bottom <br /> Bit Information <br /> Surface Casing 13 3/8" Tri-cone from 0-65'(10 3/4"casing) <br /> Main Hole 9 7/8"Tri-cone from 65'to 841' <br /> Core: NA <br /> Bottom Hole 6 1/2"Tri-cone from 841'to 1081'.Touched D2 seam @ 1080'. <br /> Footage Plugged: 1081' Cored: 0 <br /> Drilling Medium: Air: Sta-Foam 202/Water: Mud: Foam Injection: <br /> Depths: 0-65' 65'-1081' <br /> Lost Circulation Depths: NA Regained? (Y or N): NA <br /> Water Invasion Depth or Intervals: 275',660' Estimated Inflow Rates: 5 gpm,5 gpm <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-27.5'at 256 degrees <br /> Hole Cemented( Y or N ),Type:3edi-mix portland slurp No. of Bags: 9yds.Portland for annulus <br /> for 7"casing Interval: to surface <br /> Coal Core Sent To: NA Rock Sent To: NA <br /> Comments: 7"casing cemented with 9 yards redi-mix pordand slurry. Pumped downhole with <br /> volume cementing unit. Cement level @ 775'upon re-entering hole with 6 1/2"bit. Extra cement <br /> inside casing accounted for by extra volume ordered/extra water added to thin mix for pumping —' <br /> Bottom hole drilled dry, but created water over time. Water in bottom made placi%with <br /> cement <br /> difficult-effort unsuccessful with rig. Jetwest placed 2.5 sacks cement on bottom0'dump <br /> baler(2 runs)-three hours on site, (Himes Drilling:Colorado water well license#1285) <br /> 343.3 of 5.5"casing(bottom 85'slotted)set on cement plug-elevation 1061'below surface <br /> Top joint of 5.5"casing threaded left-hand. Overlap inside 7"casing: 123' <br /> Pneumatic plug set @ 74'on Aug. 19,cemented to surface and abandoned on Aug. 24,2005. <br />