1. Fugitive Methane Emissions: Natural Gas in CA and the Role of Hydraulic Fracturing Steve Bohlen, State Oil and Gas Supervisor, California Division of Oil, Gas, and Geothermal Resources CA Energy Commission, June 1, 2015

2. 1.Texas 2.North Dakota 3.California 4.Alaska 5.New Mexico 6.Oklahoma 7.Colorado 8.Wyoming 9.Louisiana 10. Kansas Top Ten Oil Producing States in the US, 2014 eia.gov

5. California’s Oil and Gas Fields

8. Notices and Disclosures 2014-15 8

9. 9

10. HOW MUCH WATER IS USED?

11. “An Independent Scientific Assessment of Well Stimulation in California”, January 2015 Could WST allow production of unconventional resources? Unconventional oil in deeper, low permeability source rocks – Monterey Formation – Soda Lake Shale, Vaqueros Formation – Tumey Formation – Kreyenhagen Formation – Moreno Formation San Joaquin Basin – Monterey data from Magoon et al., 2009

12. “An Independent Scientific Assessment of Well Stimulation in California”, January 2015 Current technology could add 4.9 to 15.6 billion barrels from just 19 giant San Joaquin and L.A. basin fields, with WST use much as it is today, i.e., mostly in SJV USGS Fact Sheet 2012–3120; USGS Fact Sheet 2012–3050

13. Context

14. Bottom Up vs. Top Down

15. Areas for Improvement?

16. Fugitive Methane Emissions: Natural Gas in CA and the Role of Hydraulic Fracturing Steve Bohlen, State Oil and Gas Supervisor, California Division of Oil, Gas, and Geothermal Resources CA Energy Commission, June 1, 2015