8/6/2019 Williams Chemical List

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Hydraulic Fracturing Fluid Product Component Information DisclosureFracture Date 1/6/2011

State: TexasCounty: Denton

API Number: 4212133994Operator Name: Williams

Well Nameand Number: Dr. Bob Smith C West 1H .Longitude: -97.1216979Latitude: 33.0287575

Long/Lat Projection: NAD27Production Type: Gas

True Vertical Depth (TVD): 8,193Total Wa ter Volume (gal)*: 5,982,220

Hydraulic Fracturing Fluid Composition:

Trade Name Supplier Purpose Ingredients Chemical Abstract Maximum Maximum CommentsService Number Ingredient Ingredient(CAS #) Concentration Concentrationin Additive in HF Fluid, (% by mass)** (% by mass)**Water Williams Carrier/Base Fluid Water 7732-18-5 100.00% 86.35849%

Sand Premium Halliburton Proppant Crystalline Silica Quartz 14808-60-7 100.00% 10.05333%White 100MeshSand P rem ium Hal li burton Proppant Crystalline Silica Quartz 14808-60-7 100.00% 3.38005%White 40/70Hydrochloric Acid Halliburton Acid Hydrochloric Acid 7647-01-0 15.00% 0.15189%BE-7 Halliburton Biocide Sodium Hypochlorite 7681-52-9 30.00% 0.01184%

Sodium Hydroxide 1310-73-2 5.00% 0.00197%I FR-66 Halliburton Friction Reducer Hydrotreated Light Petroleum Distillate 64742-47-8 30.00% 0.02376%Scalechek LP-55 Halliburton Surfactant Polyacrylate Confidential Business 60.00% 0.00893%InformationGelsta L Halliburton Stabilizer Sodium Thiosulfate 7772-98-7 60.00% 0.00780%HAl-OS Halliburton Corrosion Inhibitor Methanol 67-56-1 60.00 % 0.00092%

Propargyl Alcohol 107-19-7 10.00 % 0.00015%LoSurf-300D Halliburton Non-Ionic Surfactant Ethanol 64-17-5 60.00% 0.00051%

Heavy Aromatic Petroleum Naphtha 64742-94-5 30.00% 0.00025%: Naphthalene 91-20-3 5.00% 0.00004%

Poly-alpha-omega-hydroxy, branched 127087-87-0 5.00% 0.00004%1,2,4 Trimethylbenzene 95-63-6 1.00% 0.00001%

* Total Water Volume sources may include fresh water, producedwater, and/or recycled water** Information isbasedon the maximum potential for concentration and thus the total may be over 100%All component information l istedwasobtained from the supplier' s Material Safe ty Data Sheets (MSDS). As such, the Operator is not responsible for inaccurate and/or incomplete information.Any questions regarding the content of the MSDS should be directed to the supplier who provided it. The Occupational Safet y a nd Health Administration' s (OSHA) regulations govern the criteriafor the disclosure of this information. Please note that Federal Law protects "proprietary", "trade secret", and "confidential business information" and the criteria for how this informati on is reportedon an MSDS Is subject to 29CFR 1910.1200(i) andAppendix D. . .