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 09-01 B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: USFS
Date Commenced: 30-Aug-07 Date Completed: 7-Sep-07
Contractor: Stewart Bros. Rig Type: Failing 2500 Rig 45
Geologist: Doug Allen Date: 15-Jan-08 Toolpusher: Justin Barris
Driller: Jimson Billy Truck Driver: S. Platero Helper: Z.Asher
Bryan Tulley T. Martinez C. Charley
Earl Martinez D. Hudson 0. Chacho
Coordinates: N. 18345.93 E. 24931.23
Location: Township, Range&Section: SW 1/4 Sec,35,T.12S.,R.90W.
Ground Elevation: 7585' Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 1458' Probe Depth: 1440'(camera) Fluid Level: NA
Casing Type: steel, T&C Size: 9 5/8"
Casing Type: steel, FJ Size: 7"(5 slotted,2 solid)
Depth: 9 5/8":0-1360' Recovered(Y or N): N
7": 1300-1440' N
Bit Information
Surface Casing 17"Tricone to 20'; (14"surface casing)
Main Hole 121/4"Tricone to 1360'
Core: NA
Bottom Hole 8 3/4"Tricone to 1458'
Footage Plugged: 1458' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-20' 20-1458'
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: Jet West Geophysical, LLC
Logs Run: Gamma: Neutron:
Temperature: Density:
Resistivity: Caliper:
Other(SP, Foc. Elec., Drift, Dep., Sonic): Videolog casing
Hole Cemented(Y or N ), Type: Y No.of Bags: 2 yds portland for9 5/8 annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Hole drilled post-longwalling,into roof gob. 2'void encountered @ 1445';
top of D2 seam estimated at 1465'. 7"casing set on bottom of hole at 1440'. Videolog casing
after methane pump would not pull enough gas to operate. Casing appears fine-pump removed.
9 5/8"casing abandoned to surface with 26 cubic yards portland type 11 cement July,2009.