2020-09-30_PERMIT FILE - C1981022 ‎(2)‎

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 9/30/2020
• Doc Name: Borehole Abandonment Reports
• Section_Exhibit Name: Exhibit 2.04-E3 Tab I/Item 9
• Media Type: D
• Archive: No

Oxbow Mining LLC
Elk Creek Mine
Hole Number: GVB 15-03 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: C0C-61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 23-06t-09 Date Completed: 27-Oct-09
Contractor: Himes Drilling Rig Type: Atlas Copco RD20
Geologist: Doug Allen Date: 13-N6v-09 Toolpusher: Matt Himes
Driller: Jim Weatherton Truck Driver: Will Juusola Helper: Beau 0.
Sarn Homedew Tommy Dennis Sean V.
Coordinates: N. 15546.70 E. 34773.68
Location: Township,Range&Section: SW 1/4,Sec.31,T. 12 S.,R.90 W.
Ground Elevation: 7501' Collar Elevation:
Geophysical Log Measured From: ground Elevation
Total Depth: 1540' Probe Depth: 1542' Fluid Level: NA
Casing Type: steel T&C Size: 9 5/8"
Casing Type: sol/slot steel T&C Size: 7"
Depth: 0-1340' Recovered(Y or N): N
Depth: 1300-1510' Recovered(Y or N): N
Bit Information
Surface Casing 16"Tricone to 40'(14"surface casin )
Main Hole 121/4"PDC from 40-1340'
Core:
Bottom Hole 8 3/4"Tricone from 1340-1540'
Footage Plugged: 0-1540' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-107' 107-1540'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: NA
Geophysical Logging Contractor: Jetwest Geophysical
Logs Run: Gamma: Y Neutron:
Temperature: Density: Y
Resistivity: Y Caliper: Y
Other(SP,Foc.Elec.,Drift, Dep.,Sonic): cement dump bailer
Hole Cemented(Y or N ),Type: N No.of Bags:
Interval:
Coal Core Sent To: NA Rock Sent To: NA
Comments: 7"casing overlaps 40'inside 9 5/8"casing.
9 5/8"annulus cemented with 30 bags plus 3 yds neat cement slurry.
Tagged gravel at 1517',tagged cement plug at 1510'.
9 5/8"casing a andoned to surface with 22 cubic yards portland type II cement October, 2010.
Himes Drilling Colorado water well license#1285