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 11 O1A Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: USFS
Date Commenced: 2-Aug-07 Date Completed: 15-Aug-07
Contractor: Stewart Bros. Rig Type: Failing 2500 Rig 48
Geologist: Doug Allen Date: 15-Jan-08 Toolpusher: Danny White
Driller: Gabe Armijo Truck Driver: Austin Martinez Helper: A Torrez
Kevine Begay J. Trujillo J. Long
Randy McClard A.Sandoval N. Brite
Coordinates: N. 20396.13 E. 25432.66
Location: Township,Range&Section: NE 1/4 Sec.35,T.123.,R.90W.
Ground Elevation: 8227' Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 2280' Probe Depth: 2272' Fluid Level: NA
Casing Type: steel, T&C Size: 9 5/8"
Casing Type: steel FJ Size: 7"
Depth: 9 5/8":0-2120' Recovered(Y or N): N
7": 1293-1455' N
Bit Information
Surface Casing 17"Tricone to 20'; (14"surface casing)
Main Hole (Reamed) 12 1/4"Tricone to 2130'
Core: NA
Bottom Hole 8 3/4"Tricone to 2230'
Footage Plugged: 2220' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-20' 20-2230'
Lost Circulation Depths: 260-600' Regained? (Y or N): Y
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 2250-2265'
Geophysical Logging Contractor: Jet West Geophysical, LLC
Logs Run: Gamma: X Neutron:
Temperature: Density: X
Resistivity: X Caliper: K
Other(SP, Foc. Elec., Drift, Dep.,Sonic): Deviation:55' @ 229 deg,
Hole Cemented(Y or N ), Type: Y No.of Bags: 2 yds portland for 5/8 annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Drilled 8 3/4"pilot hole to verify mineable thickness,then reamed
12114" to 2130'for 9 5/8"casing. Cuttings filled bottom hole during reaming,cleaned out to 2251'.
9'cement plug from 2240-2249'. Bottom of 7"slotted casing 1 V above D2 seam(2251-2263').
Unable to get dumpbailer past 1437'-plug placed by driller through drill pipe.
9 5/8"casing abandoned to surface with 32 cubic yards portland type 11 cement May,2008.