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 12-01 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 16-Aug-07 Date Completed: 1-Sep-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: J.Rose
Kevine Begay J. Trujillo J.Long
Randy McClard A. Sandoval N.Brite
Coordinates: N. 20760.12 E. 27332.69
Location: Township,Range&Section: NE 1/4 Sec.35, T.12S.,R.90W.
Ground Elevation: 821 V Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 2275' Probe Depth: 2270' Fluid Level: NA
Casing Type: steel,T&C Size: 9 5/8"
Casing Type: steel FJ Size: 7"(6 slotted,2 solid)
Depth: 9 5/8":0-2145' Recovered(Y or N): N
7": 2082-2252' N
Bit Information
Surface Casing 17"Tricone to 20'; (14"surface casing)
Main Hale (Reamed)12 1/4"Tricone to 2155'
Core: NA
Bottom Hole (Reamed)8 3/4"Tricone to 2261'
Footage Plugged: 2275' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-20' 20-2275'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 2260-2270'
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:32' @ 239 deg.
Hole Cemented(Y or N ), Type: Y No.of Bags: 17 yds por land for annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Drilled 6 3/4"pilot hole to verify mineable thickness,then reamed
121/4" to 2145'for 9 5/8"casing. Cuttings filled bottom hole during reaming,cleaned out to 2261'.
9'cement plug from 2252-2261'. Bottom of 7"slotted casing 7'above D2 seam(2259-2269')
Panel 12 abandoned due to fault encountered underground,well never used to vent gob.
9 5/8"casing abandoned to surface with 27 supersacks hole plug,2 sacks(10')cement December,2007.