On September 13–14, 2012, EPA held a stakeholder workshop on key aspects of the estimates of greenhouse gas emissions from the natural gas sector in the Inventory of U.S. Greenhouse Gas Emissions and Sinks. View the workshop summary and individual presentations below.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Stakeholder Workshop: Summary Report (PDF)(8 pp, 395 K, September 13, 2012)
- Overview of U.S. GHG Inventory (Bill Irving, EPA) (PDF)(14 pp, 98 K, September 13, 2012)
- GHGRP and GHG Inventory (Mark DeFigueiredo, EPA) (PDF)(11 pp, 256 K, September 13, 2012)
- Overview of Natural Gas in the GHG Inventory (Melissa Weitz, EPA) (PDF)(9 pp, 87 K, September 13, 2012)
- Overview of Production Sector (Brian Cook, EPA) (PDF)(9 pp, 81 K, September 13, 2012)
- Overview of GHG Inventory Gas Well Data (Carey Bylin, EPA) (PDF)(9 pp, 105 K, September 13, 2012)
- Well Count Data (Ed Hance, Pioneer) (PDF)(7 pp, 840 K, September 13, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Liquids Unloading (Suzie Waltzer, EPA) (PDF)(13 pp, 105 K, September 13, 2012)
- Updates to Liquids Unloading Emissions Estimates (Reid Smith, BP) (PDF)(9 pp, 874 K, September 13, 2012)
- Well Completions (Lee Hinman, Noble) (PDF)(5 pp, 830 K, September 13, 2012)
- Re-fracture Rates for Wells (Brian Gillis, Chesapeake) (PDF)(12 pp, 1 MB, September 13, 2012)
- Shale Gas Production - The GHG Emissions Questions (Francis O'Sullivan, MIT) (PDF)(11 pp, 833 K, September 13, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Well Completions and Workovers with Hydraulic Fracturing (Bill Irving, EPA) (PDF)(13 pp, 107 K, September 13, 2012)
- Realistic Completion Emissions (Jesse Sandlin, Devon) (PDF)(9 pp, 316 K, September 13, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Other Production Emission Sources (Leif Hockstead, EPA) (PDF)(8 pp, 71 K, September 13, 2012)
- Top-down Estimation of CH4 Emissions from Oil and Natural Gas Operations in the Denver and Uintah Oil and Gas Basins (Anna Karion, NOAA) (PDF)(18 pp, 15 MB, September 13, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Processing (Carey Bylin, EPA) (PDF)(11 pp, 114 K, September 14, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Transmission and Storage (Suzie Waltzer, EPA) (PDF)(9 pp, 82 K, September 14, 2012)
- Current U.S. Inventory Methods and Key Areas for Updates: Distribution (Melissa Weitz, EPA) (PDF)(14 pp, 106 K, September 14, 2012)
- Improving Methane Emission Estimates for Belowground Pipeline Leaks (Khalid Farrag, Gas Technology Institute) (PDF)(17 pp, 1 MB, September 14, 2012)
- Statistical Methods and Procedures in Estimates of Methane Emissions from Unconventional Wells - a Comment on Bayesian Applications (Jacob Dearmon, Oklahoma City University) (PDF)(9 pp, 152 K, September 14, 2012)
- Natural Gas Study (Cliff Brown, Novim) (PDF)(4 pp, 64 K, September 14, 2012)
- Natural Gas Methane Study (Ramon Alvarez, EDF) (PDF)(1 pg, 182 K, September 14, 2012)