### MEMORANDUM TO: Record FROM: Brent Ruminski , ERG DATE: 28 November 2012 SUBJECT: 2012 Tight Oil Water Management Summit Conference Materials On October 29 and 30 , EPA attended the 2012 Tight Oil Water Management Summit Conference in Denver, CO . The c onference materials in the following table are provided as attachments:

### Memorandum 27 November 2012 Page 2 of 4
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Number Presentation File Name Presenter Name and Affiliation Presentation Title Abstract 1 21 - day - 1 - tom sheffield - pioneer natural resources.pdf Tom Sheffield, Pioneer Natural Resources How Operators Are Implementing Comprehensive Water Management Systems From Transport To Treatment To Re - Use To Save Millions On Wells Costs This presentation provides basic information of wastewater treatment technologies that may potentially treat tight oil wastewater. 2 22 - day - 1 - michael mckimmy hess.pdf Michael McKimmy, Hess Corporation Analyzing How Produced Water Reacts with Frac Fluids to Asses it’s Compatibility with the Fluid and Formation This presentation analyzes source water quality criteria for fracturing Bakken shale oil wells including the potential use of Ba kken wastewater an d groundwater as fracturing base fluid. 3 23 - day - 1 - timothy cheung - shell Timothy Cheung, Shell Identifying the Recycling and Treatment Criteria that Must be Met to Avoid Scaling and Enable Successful Reuse This presentation discusses reuse of flowback and produced waters and illustrates how wastewater within a given formation will eventually need to be disposed of or discharged. 4 24 - day - 1 - anthony smith - pioneer natural resources.pdf Anthony Smith, Pioneer Natural Resources Water Re - Use: No Silver Bullets This presentation explains how there is no single wastewater management strategy for operators. 5 25 - day - 1 - david yoxtheimer - penn state - marcellus center - for outreach - and research.pdf Dave Yoxtheimer, Penn State Marcellus Center fo r Outreach and Research Flowback Treatment and Reuse Strategies for Tight Oil Formations This presentation examines treatment and reuse strategies for various tight oil formations.

6 29 - day - 1 - phil winner - layne energy Phil Winner, Layne Energy Quantifying the Total Costs of Recycling Water in Tight Oil Plays to Determine How A Treatment Program Will Affect Overall Well Economics This presentation compares the cost of wastewater management in the Bakken and Niobrara shale plays. 7 30 - day - 1 - mark kratzer - concho resources Mark Kratzer, Concho Resources Total Water Management This presentation provides an overview of Concho Resource’s activity in tight oil and provides some basic cost information on various wastewater treatment technolo gies.

### Memorandum 27 November 2012 Page 3 of 4
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Number Presentation File Name Presenter Name and Affiliation Presentation Title Abstract 8 31 - day - 1 - aaron horn - hydrozonix Aaron Horn, Hydrozonix Comparing the Latest Innovations in Treatment Technology Based on Water Quality and Cost per Barrel This presentation provides some cost data for water and wastewater storage tanks and discusse s the oxidation treatment technology offered by Ozonix®. 9 32 - day - 1 - steve tipton - newfield exploration Steve Tipton, Newfield Exploration Company Examining Water Storage Options to Improve Efficiencies and Minimize Costs in Fracturing Operations This presentation provides detailed cost data for various water and wastewater storage tanks. 10 41 - day - 2 - steve tipton - newfield exploration Steve Tipton, Newfield Exploration Company Evaluating the Most Cost Effective Strategies for Disposing of Water This presentation provides detailed cost data for various water and wastewater storage tanks. 11 47 - day - 2 - katharine fredriksen - consol energy Katharine Fredriksen, Consol Energy How An Operator Is Developing A Systematic Sourcing Strategy To Guarantee Water Ava ilability At Minimal Costs This presentation provides information on Consol Energy’s unconventional oil and gas wastewater management.

### Memorandum 27 November 2012 Page 4 of 4
A TTACHMENTS