Table of Contents Table of Contents 2 List of Tables 3 List of Figures 3 Company Snapshot 4 Key Information 4 Company Overview 4 Idemitsu Kosan Co., Ltd., Valuation and Financial Data, 2011-2015 5 Idemitsu Kosan Co., Ltd., Share Price Performance, 2011-2015 5 Share Price Performance, 2011-2015 5 Key Valuation Metrics, 2011-2015 6 Idemitsu Kosan Co., Ltd., Production and Reserves Trends 7 Total Oil and Gas, Reserves and Production 7 Total Crude Oil and Natural Gas Production and Reserves Trend, 2011-2015 7 Total Crude Oil & Natural Gas Production and Reserves By Country/Region, 2011-2015 8 Idemitsu Kosan Co., Ltd., E&P Costs Trends 9 Allocation of the Upstream Capital Expenditure 9 Upstream Capital Expenditure, 2011-2015 9 Idemitsu Kosan Co., Ltd., Results of Oil & Gas Operations Trend 10 Oil and Gas Revenue and Expenses 10 Oil and Gas Revenue and Expenses, 2011-2015 10 Recent Developments 11 Idemitsu Kosan Co., Ltd. - Recent Developments 11 Apr 11, 2016: Government Of British Columbia: Japan Trip Strengthens B.C.’s Natural Gas Prospects 11 Apr 06, 2016: Tullow Oil: Successful Wisting Exploratory Appraisal Well In Norway 12 Mar 01, 2016: Construction Begins on One of Japan’s Largest Geothermal Binary Power Plants 13 Feb 29, 2016: Idemitsu to Open Its First Commercial Hydrogen Station 13 Dec 24, 2015: Idemitsu Kosan: Crude Oil Refining Production For Jan.-Mar. 2016 14 Nov 22, 2015: Qatargas Initiates New Environmental Project For Laffan Refinery In Support Of QNV 2030 14 Nov 04, 2015: Idemitsu Kosan Announces Consolidated Financial Results For The Second Quarter Of Fiscal Year 2015 15 Oct 28, 2015: Vietnam Provides Update On Construction Of Nghi Son Oil Refinery 19 Oct 25, 2015: Qatargas Delivers 2,300 LNG Cargoes To Japan Since 1997 19 Oct 05, 2015: Short-term Flow Test of Exploratory Wells for Geothermal Energy Development in Amemasudake Area, Hokkaido, Japan 20 Appendix 21 Methodology 21 Coverage 21 Secondary Research 21 Primary Research 21 Data Information Sources 22 Company Source 22 SEC/Other Regulatory Filings 22 Other Sources 22 Expert Panel Validation 22 Data Definition 22 Oil and Gas Reserves 22 Units of Measure 23 About GlobalData 23 Disclosure 23 Disclaimer 23

List of Tables Table 1: Idemitsu Kosan Co., Ltd., Key Facts 4 Table 2: Idemitsu Kosan Co., Ltd., Share Price Performance, 2011-2015 5 Table 3: Idemitsu Kosan Co., Ltd., Key Valuation Metrics, 2011-2015 6 Table 4: Idemitsu Kosan Co., Ltd., Total Crude Oil and Natural Gas, Production and Reserves, mmboe, 2011-2015 7 Table 5: Idemitsu Kosan Co., Ltd., Total Crude Oil & Natural Gas Production and Reserves, By Country/Region, mmboe, 2011-2015 8 Table 6: Idemitsu Kosan Co., Ltd., Upstream Capital Expenditure, US$ mil, 2011-2015 9 Table 7: Idemitsu Kosan Co., Ltd., Revenue and Expenses, US$ mil, 2011-2015 10 List of Figures Figure 1: Idemitsu Kosan Co., Ltd., Share Price Performance, JPY/Share, 2011-2015 5 Figure 2: Idemitsu Kosan Co., Ltd., Total Oil & Gas Production, By Country/Region, mmboe, 2011-2015 8 Figure 3: Idemitsu Kosan Co., Ltd., Revenue and Expenses, US$ mil, 2011-2015 10