2018-04-18_PERMIT FILE - C1981022A ‎(2)‎

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 4/18/2018
• Doc Name: Borehole Abandonment Reports
• Section_Exhibit Name: Exhibit 2.04-E3 Tab I/Item 9
• Media Type: D
• Archive: Yes

oxbow Mining LLC
Elk Creek Mine
Hole Number: GVB 11-03 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 21 -Jun -07 Date Completed: 13 -Jul -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:
G. Gutierrez
Kevine Begay
N. Brite
J. Trujillo
Randy McClard
L. Smith
A. Sandoval
Coordinates: N. 18921.76 E.
30620.57
Location: Township, Range & Section:
N.1/2 Sec. 36, T.12S., R.91 W.
Ground Elevation: 7500' Collar Elevation:
Geophysical Log Measured From: Ground
Elevation
Total Depth: 1643' Probe Depth:
1617' Fluid Level:
NA
Casing Type: steel, T&C
Size: 95/81,
Casing Type: steel FJ
Size: 7" (5 slotted, 9 solid)
Depth: 95/8":0-1300' Recovered (Y or N):
N
7": 1265-1565'
N
Bit Information
Surface Casing 17" Tricone to 20'; (14" surface casing)
Main Hole 12 1/4" Tricone to 1340'
Core: NA
Bottom Hole 8 3/4" Tricone to 1643'
Footage Plugged: 1643' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-92' 92-1643'
Lost Circulation Depths: NA Regained ? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 1585-1600'
Geophysical Logging Contractor: Jet West Geophysical, LLC
Logs Run: Gamma: X Neutron:
Temperature: Density: X
Resistivity: X Caliper: X
Other (SP, Foc. Elec., Drift, Dep., Sonic): Deviation: 42' Q 219 deg. Video 9 5/8"casin
Hole Cemented( Y or N ),Type: Y No. of Bags: 40 sacks for annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Bottom of hole cemented off and drilled out to 1565'.
Bottom of 7" slotted casing 23' above D2 seam (1588-1600').
Video of 9 5/8" casing shows separations at 866',1040' and 1207'. Cemented off and milled out.
9 5/8' casing abandoned to surface with 6 cubic yds. Portland type II cement 4 sacks hole plug;
48 sacks (7200 gallons) plug gel; 2 sacks (10') cement September, 2009.