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 16-07B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: USFS
Date Commenced: 1-Feb-11 Date Completed: 11-Feb-11
Contractor: Himes Drilling Rig Type: Atlas Copco RD20
Geologist: Doug Allen Date: 12-Feb-11 Toolpusher: Matt Himes
Driller: Jim Weatherton Truck Driver: Kirk Homedew Helper: Richard M.
Sam Homedew Will Juusola Trey H./Chad H,
Coordinates: N. 16127.60 E. 38379.60
Location: Township, Range&Section: SW 1/4, Sec. 32,T, 12 S,, R,90 W.
Ground Elevation: 8234' Collar Elevation:
Geophysical Log Measured From: ground Elevation
Total Depth: 2390' Probe Depth: NA Fluid Level: NA
Casing Type: steel T&C Size: 9 5/8"
Casing Type: Size:
Depth: 0-1976' Recovered(Y or N): N
Depth: Recovered(Y or N):
Bit Information
Surface Casing 16"Tricone to 42'(14"surface casing)
Main Hole 121/4"PDC from 42-1976'
Core:
Bottom Hole 8 3/4"Tricone from 1976-2390'
Footage Plugged: 0-2390' Cored: NA
Drilling Medium: Air: Foam(Water: Mud: Foam Injection:
Depths: 0-290' 290-2390'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates: NA
Gas Invasion Depth or Interval: NA
Geophysical Logging Contractor: directional hole-no logging
Logs Run: Gamma: Neutron:
Temperature: Density:
Resistivity: Caliper:
Other(SP, Foc.Elec.,Drift,Dep.,Sonic):
Hole Cemented(Y or N ),Type: Y No.of Bags:9 yds for 9 5/8"annulus
Interval:to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: No 7"casing-8 3/4" hole left open.
Drilled directionally from 290-1976'. Bottom of 9 5/8"casing located 279'at azimuth 300,05 degrees.
9 5/8"casing abandoned to surface with 35 yds portland type II cement July,2011.
Himes Drilling Colorado water well license#1285