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Oxbow Mining LLC <br /> Elk Creek Mine <br /> Hole Number: GVB 10-04 Project ID.: Elk Creek Mine Gob Vent Boreholes <br /> Lease Number: COC-61357 (State or Federal) Surface Owner: BLM <br /> Date Commenced: 26-Jul-07 Date Completed: 1-Aug-07 <br /> Contractor: Stewart Bros. Rig Type: Failing 2500 Rig 48 <br /> Geologist: Doug Allen Date: 15-Jan-08 Toolpusher: Danny White <br /> Driller: Gabe Armijo Truck Driver: Austin Martinez Helper: G.Gutierrez <br /> Kevine Begay N.Brite J.Trujillo <br /> Randy McClard L.Smith A.Sandoval <br /> Coordinates: N. 18423.43 E. 29074.86 <br /> Location: Township,Range&Section: SW1/4 Sec.36,T.12S.,R.90W. <br /> Ground Elevation: 7498' Collar Elevation: <br /> Geophysical Log Measured From: Ground Elevation <br /> Total Depth: 1525' Probe Depth: 1504' Fluid Level: NA <br /> Casing Type: steel,T&C Size: 9 5/8" <br /> Casing Type: steel FJ Size: 7"(5 slotted, 3 solid) <br /> Depth: 9 5/8":0-1345' Recovered(Y or N): N <br /> 7': 1293-1455' N <br /> Bit Information <br /> Surface Casing 17"Tricone to 20';(14'surface casing) <br /> Main Hole (Reamed)12 1/4"Tricone to 1351' <br /> Core: NA <br /> Bottom Hole 8 3/4"Tricone to 1525' <br /> Footage Plugged: 1525' Cored: NA <br /> Drilling Medium: Air: FoamMater: Mud: Foam Injection: <br /> Depths: 0- <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: 1470-1490' <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:51'@ 181 deg. <br /> Hole Cemented(Y or N ),Type: N No.of Bags: 4,5 yds portland slurry for 9 5/8" <br /> Interval: to surface <br /> Coal Core Sent To: NA Rock Sent To: NA <br /> Comments: Drilled 8 3/4"pilot hole to verify mineable thickness,then reamed <br /> 121/4"to 1351'for 9 5/8"casing. Cuttings filled bottom hole during reaming,cleaned out to 1455'. <br /> 9'cement plug from 1455-1446'. Bottom of 7"slotted casing 17'above D2 seam(1472-1484'). <br /> 9 5/8"casing abandoned to surface with 9 cubic yards portland type 11 cement June,2010. <br />