HomeMy WebLinkAbout20253445 aBjLSoN ison. IV Operating, LLC
RECEIVED
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IV OPERATING DEC 0 9 2025 1�e CO f 0202
WELD COUNTY
COMMISSIONERS
Since inception, Bison has reported any chemicals used in our oil and gas wells on
FracFocus.org. As required under Colorado Revised Statues (C.R.S. 34-60-132, oil and gas
operators must now also disclose these chemicals directly to certain individuals and entities near
well locations. The attached Chemical Disclosure List provides a summary of the products used
as part of our operations.
Further information about our company and operations can be found at bisonog.com. For more
information about the chemicals listed, we encourage you to visit FracFocus.org.
For question, please contact chemicaldisclosure@bisonog.com.
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2025-3445
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Chemical State of Colorado
Disclosure CEnergy &Carbon Management Commission
Rev 1120 Lincoln Street, Suite 801, Denver, CO 80203 DNR
5/24 Phone, Suite 801, Denver, CO 80203
CHEMICAL DISCLOSURE LIST
Colorado Revised Statutes (C.R.S.) 34-60-132 requires oil and gas operators in Colorado to disclose the chemicals used in
downhole operations to certain persons and entities near their downhole operations. Operators report chemical products
used in downhole operations to the ECMC on a location-by-location basis. Information provided by Chemical
Manufacturers and the oil and gas operator is aggregated by the ECMC into a chemical disclosure list for release to the
public. Chemicals are reported on the list alphabetically and include each chemical's Chemical Abstracts Service Number
(CAS Number) as assigned by the Chemical Abstracts Service. Pursuant to C.R.S. 34-60-132,Operators must provide the
chemical disclosure list to the interested parties defined in the law within 30 days after receipt of the chemical disclosure
list from the ECMC.
Chemical Disclosures
Location: 469100 I Goldeneye Center PAD County: Weld
Operator: 10670 I Bison lv Operating LLC Lat/Long: 40.64859/-104.09812
Chemical Name CAS Number
2-Propanol 67-63-0
Acrylamide 79-06-1
Acrylamide, Sodium Acrylate Polymer 25987-30-8
Alcohols, C12-16, Ethoxylated 68551-12-2
Alkyl Oxirane Polymer 64366-70-7
Cinnamaldehyde 104-55-2
Citric Acid 77-92-9
Dextran 9004-54-0
Dipropylene Glycol Methyl Ether 34590-94-8
Dye Chinoline Ylw Ss Solv 33 Dr400 8003-22-3
Ethanol 64-17-5
Ethylene Glycol 107-21-1
Formic Acid 64-18-6
Glutaraldehyde 111-30-8
Hydrochloric Acid 7647-01-0
Hydrotreated Light Petroleum Distillate 64742-47-8
Lactose 9004-34-6
Magnesium Chloride 7786-30-3
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Chemical Name CAS Number
Methanol 67-56-1
Oxygenate And Paraffinic Stream 876065-86-0
Poly(Diallyldimethylammonium Chloride) 26062-79-3
Polyalkylene Glycol 52624-57-4
Potassium Chloride 7447-40-7
Quaternary Ammonium Compound 68424-85-1
Silicon Dioxide 14808-60-7
Sodium Chloride 7647-14-5
Sodium Hydroxide 1310-73-2
Sodium Hypochlorite 7681-52-9
Sodium Metaborate 10555-76-7
Sodium Perborate Tetrahydrate 10486-00-7
Solvent Blue 35 17354-14-2
Sorbitan, Mono-9-Octadecenoate, (Z) 1338-43-8
Thiourea-Formaldehyde Copolymer 68527-49-1
Triazinetriethanol 4719-04-4
Urea 57-13-6
Water 7732-18-5
White Mineral Oil 8042-47-5
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