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Form 3160-5 UNITED STATES FORM ioo�ol37 (June 2019) DEPARTMENT OF THE INTERIOR Expires:October 31,2021 BUREAU OF LAND MANAGEMENT 5.Lease Serial No. COC-0118327 SUNDRY NOTICES AND REPORTS ON WELLS 6.If Indian,Allottee or Tribe Name Do not use this form for proposals to drill or to re-enter an abandoned well. Use Form 3160-3(APD)for such proposals. SUBMIT IN TRIPLICATE-Other instructions on page 2 7.If Unit of CA/Agreement,Name and/or No. 1.Type of Well ❑Oil Well ❑ Gas Well ©Other 8.Well Name and No.IRI-26-EX-2 2.Name of Operator Natural Soda LLC 9.API Well No. 3a.Address 3200 Rio Blanco County Rd 31 3b.Phone No.(include area code) 10.Field and Pool or Exploratory Area (970)878-3674 4.Location of Well(Footage,Sec.,T.,R.,M.,or Survey Description) 11.Country or Parish,State 2575.2 FNL,2577.3 FEL,S26,T1S,R98W,6th PM Rio Blanco County,CO 12.CHECK THE APPROPRIATE BOX(ES)TO INDICATE NATURE OF NOTICE,REPORT OR OTHER DATA TYPE OF SUBMISSION TYPE OF ACTION ❑Notice of Intent ❑Acidize ❑Deepen ❑Production(Start/Resume) ❑Water Shut-Off ❑Alter Casing ❑Hydraulic Fracturing ❑Reclamation ❑Well Integrity ©Subsequent Report ❑Casing Repair ❑New Construction ❑Recomplete ❑Other ❑Change Plans ©Plug and Abandon ❑Temporarily Abandon ❑Final Abandonment Notice ❑Convert to Injection ❑Plug Back ❑Water Disposal 13. Describe Proposed or Completed Operation:Clearly state all pertinent details,including estimated starting date of any proposed work and approximate duration thereof.If the proposal is to deepen directionally or recomplete horizontally,give subsurface locations and measured and true vertical depths of all pertinent markers and zones.Attach the Bond under which the work will be performed or provide the Bond No.on file with BLM/BIA.Required subsequent reports must be filed within 30 days following completion of the involved operations.If the operation results in a multiple completion or recompletion in a new interval,a Form 3160-4 must be filed once testing has been completed.Final Abandonment Notices must be filed only after all requirements,including reclamation,have been completed and the operator has determined that the site is ready for final inspection.) All depths referenced to GL.The IRI-26-EX-2 well reached the end of its useful life and has been plugged and abandoned.A 3.875"bit and 4.5"casing scraper were tripped in and the well was cleaned out to a depth of 1,875'.The 4.5"casing was perforated at depths of 101',and 1110'.Both of the perforation intervals consist of four 0.38"holes at 90 degree phasing and with 20.5"of penetration.All cement plugs were set using the balance method. Plug 1 cement consisted of 18.0 bbis(78.75 sks)of 14.5 lb/gal Portland Type 1/11 LA cement and was pumped in three lifts,the first lift of 7.2 bbls from 1,835',the second lift of 7.2 bbls from 1,535',and the third lift of 3.6 bbls from 1,135'.Plug 1 was allowed to set 19.5 hours,after which the top of cement was tagged at 798'.The calculated volume of the plug 1 interval(1,875 to 798')was 17.18 bbls(96.46 cu ft)which meant that 4.8%excess(0.82 bbls) cement was pushed out the perforations between 1,842'and 1,868'feet and out the perforations at 1,110 into the adjacent casing annulus.Plug 2 cement consisted of 13.7 bbis(59.9 sks)of 14.5 lb/gal Portland Type 1/11 LA cement and was pumped in two lifts,the first lift of 7.2 bbls from 776,and the second lift of 6.5 bbls from 475'to surface.The cement fell back after pumping to 25'.The calculated volume of the plug 2 interval(798'to 25')was 12.33 bbls (69.2 cu ft)with which meant that 10%excess(1.37 bbis)cement was used to plug the upper cased and annular portion of the well.The well was dug out at surface and the casing was cut off 3 feet below GL.The 4.5"casing was topped off from 25'to surface with 2 sks(0.6 bbls)of 15 ppg Portland Type 1/11 cement.A total of 32.3 bbls(140.65 sks)of cement was used to P&A the well.A steel cap with the well name was welded onto the 7.0"conductor casing and buried on 10/19/2021. For additional information please see attached As-Built Plug and Abandonment diagram. 14.I hereby certify that the foregoing is true and correct. Name(Printed/Typed) Gerald J Daub Title President Daub&Associates,Inc. Signature / Date /"-- 4l I THE SPACE FOR FEDERAL OR OATE OFt6E USE Approved by Title Date ------------------------------------------------------------------------ Conditions of approval,if any,are attached.Approval of this notice does not warrant or certify that the applicant holds legal or equitable title to those rights in the subject lease Office which would entitle the applicant to conduct operations thereon. Title 18 U.S.0 Section 1001 and Title 43 U.S.0 Section 1212,make it a crime for any person knowingly and willfully to make to any department or agency of the United States any false,fictitious or fraudulent statements or representations as to any matter within its jurisdiction. (Instructions on page 2)