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Oxbow Mining LLC <br /> Elk Creek Mine <br /> Hole Number: GVB-LW07-02 Project ID.: Elk Creek Mine Gob Vent Boreholes <br /> Lease Number: COC-61357 (State or Federal) Surface Owner: USFS <br /> Date Commenced: 18-Jun-06 Date Completed: 7-Jul-06 <br /> Contractor: WDC Drilling, Inc. Rig Type: Gefco 90K <br /> Geologist: Ken Ball/D.Allen Date: 15-Oct-06 Toolpusher: Kevin Jones <br /> Driller: Alan Taylor Truck Driver: Robert Labahn Helper: James Timms <br /> Kevin Lewis Marvin Eldridge Bill Spain <br /> Coordinates: N. 16094.03 E. 26150.74 <br /> Location: Township, Range&Section: SE 1/4 Sec. 35,T. 12 S.,R. 91 W. <br /> Ground Elevation: 7807' Collar Elevation: <br /> Geophysical Log Measured From: Ground Elevation <br /> Total Depth: 1720' Probe Depth: 1640' Fluid Level: NA <br /> Casing Type: steel,T&C Size: 9 5/8" <br /> Casing Type: slotted steel, T&C Size: 7" <br /> Depth: 1494' Recovered(Y or N): N-cemented <br /> Depth: 1434-1720' Recovered(Y or N): N-loose <br /> Bit Information <br /> Surface Casing 17"Tri-cone(14"casing)from 0-20' <br /> Main Hole 121/4"Tri-cone to 1494' <br /> Core: <br /> Bottom Hole 8 3/4"Tri-cone to 1720' <br /> Footage Plugged: 1720' Cored: NA <br /> Drilling Medium: Air: Sta-Foam 202/Water: Mud: Foam Injection: <br /> Depths: 0-20' 20-1720' <br /> Lost Circulation Depths: NA Regained? (Y or N): <br /> Water Invasion Depth or Intervals: NA Estimated Inflow Rates: <br /> Gas Invasion Depth or Interval: NA <br /> Geophysical Logging Contractor: Jet West Geophysical; Welenco; Century Geophysical <br /> Logs Run: Gamma: X Neutron: <br /> Temperature: Density: X <br /> Resistivity: X Caliper: X <br /> Other(SP,Foc. Elec., Drift, Dep.,Sonic): 2 gyro deviation surveys:+/-40'@ 280 deg. <br /> Hole Cemented( Y or N ),Type: Y No. of Bags: 15 yds porrtland for annulus <br /> Interval: to surface <br /> Coal Core Sent To: NA Rock Sent To: NA <br /> Comments: Hole drilled into gob post-longwalling, Mine void not encountered. Drilled hole <br /> 100'past projected D2 elevation with no sign of void. Installed 207.5'slotted casing below 80' <br /> solid;7"casing overlaps 62'inside 9 5/8"casing. <br /> Two deviation surveys,two surface re-surveys confirm correct location and depth. <br /> Halliburton attempts to frac strata at mine horizon with 24,000 gallons water. No pressure built <br /> Methane pump set up on hole, but did not draw sufficient amount of gas to run. Pump pulled <br /> 9 5/8"casing abandoned to surface with 21 stlpersacks plug gel,3 sacks(10')cement August,2006. <br />