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Oxbow Mining LLC <br /> Elk Creek Mine <br /> Hole Number: GVB 09-01 Project ID.: Elk Creek Mine Gob Vent Boreholes <br /> Lease Number: COC-61357 (State or Federal) Surface Owner: USFS <br /> Date Commenced: 27-Nov-06 Date Completed: 10-Feb-07 <br /> Contractor: REI Drilling Rig Type: Fletcher <br /> Geologist: Doug Allen Date: 15-Jan-08 Toolpusher: <br /> Driller: Tim Fields Truck Driver: Scott Copley Helper: Duane <br /> Paul <br /> Coordinates: N. 17932.56 E. 23056.88 <br /> Location: Township,Range&Section: SW 1/4 Sec.35,T.12S.,R.90W. <br /> Ground Elevation: 6519' Collar Elevation: <br /> Geophysical Log Measured From: Ground Elevation <br /> Total Depth: 924' Probe Depth: NA Fluid Level: NA <br /> Casing Type: Sonic FJ Size: 6" <br /> Casing Type: Sonic FJ,slotted Size: 4.5" <br /> Depth: 6":0-730' Recovered(Y or N): N <br /> Depth: 4": 603-903' Recovered(Y or N): N <br /> Bit Information <br /> Surface Casing 13 3/4"Tricone for 10"x50'surface <br /> Main Hole 3 3/4"PDC pilot reamed to 5 3/4", then reamed to 9 3/4", to 740' <br /> Core: NA <br /> Bottom Hole 3 3/4"PDC pilot reamed to 5 3/4",to 904' <br /> Footage Plugged: 924' Cored: NA <br /> Drilling Medium: Air: Foam/Water: Mud: Foam Injection: <br /> Depths: 0-924' <br /> Lost Circulation Depths: 0-740' Regained? (Y or N): N <br /> Water Invasion Depth or Intervals: 580-590' Estimated Inflow Rates: 8-10 gpm <br /> Gas Invasion Depth or Interval: NA <br /> Geophysical Logging Contractor: NA <br /> Logs Run: Gamma: Neutron: <br /> Temperature: Density: <br /> Resistivity: Caliper: <br /> Other(SP, Foc. Elec., Drift, Dep.,Sonic): <br /> Hole Cemented(Y or N ), Type: Y No.of Bags: 17 yds porlland for annulus <br /> Interval: see below <br /> Coal Core Sent To: NA Rock Sent To: NA <br /> Comments: Directional hole launched over headgate of panel 9. 4"slotted <br /> casing sits @ 903', 15'above D2 seam @ 918'. <br /> 5.5 yds portland displaced from Inside casing with rubber pig, 11.5 yds placed into <br /> annulus at surface, Double volume of cement did not return to surface. Expandable <br /> polyurethane resin and 6 sacks cement placed @ 50'to stabilize casing at surface. <br /> 6"casing abandoned to surface with 6 cubic yds. Portland type 11 cement November,2007, <br />