Years ended March 31 2006 2007 2008 2009 2010 Crude Oil Production （Kiloliters) 805,612 791,517 761,636 748,022 614,401 Natural Gas Production （Thousands of cubic meters) 1,279,066 1,247,087 1,288,606 1,286,621 1,250,630 LNG Production （Tons） 25,901 25,584 33,610 46,796 57,599 Bitumen Production （Kiloliters) 449,785 447,430 410,363 416,369 411,603 Crude Oil Sales （Kiloliters) 1,485,849 1,821,618 2,041,192 1,919,959 1,714,012 Natural Gas Sales (Thousands of cubic meters) 1,413,717 1,411,309 1,486,910 1,485,961 1,499,236 LNG Sales （Tons） 124,736 208,384 170,453 177,401 186,268 Bitumen Sales （Kiloliters) 448,951 444,985 409,743 417,423 411,394

Years ended March 31 2006 2007 2008 2009 2010 Net Sales （Millions of Yen） 138,796 170,018 207,638 202,127 179,752 Operating Income （Millions of Yen) 27,018 29,719 19,625 20,090 13,119 Income before income taxes and minority interests (Millions of Yen） 31,166 34,660 26,305 17,108 23,368 Net Income （Millions of Yen） 20,216 20,982 20,097 12,560 17,939 Net Assets(formerly, Shareholder's Equity) (Millions of Yen) 386,222 418,929 448,226 378,227 398,747 Total Assets （Millions of Yen） 532,516 578,059 620,946 500,444 521,009 Net Assets per share （Yen per share) 6,756.00 7,185.80 7,696.00 6,486.85 6,839.05 Net income per share（Yen per share） 352.11 367.12 351.65 219.77 313.88 Shareholders Equity Ratio （％） 72.5 71.0 70.8 74.1 75.0 Return on Shareholders' Equity （％） 6.0 5.3 4.7 3.1 4.7 Cash Flows from operating activities （Millions of Yen） 32,850 34,256 34,314 36,381 38,948 Cash Flows from investing activities （Millions of Yen） -20,063 -18,140 -53,169 -23,342 -29,300 Cash Flows from financing activities（Millions of Yen） -6,088 917 1,522 -477 -4,054 Capital Investment in property, plant and equipment （Millions of Yen） 19,934 31,746 41,742 30,902 28,835 Depreciation and Amortization （Millions of Yen） 13,951 14,938 16,669 21,521 23,237

[Note]
１．From the fiscal year ended March 31, 2007 net assets are presented in the balance sheets.

Years ended March 31 2006 2007 2008 2009 2010 Net Sales （Millions of Yen） 94,377 122,129 171,563 157,818 131,082 Operating Income （Millions of Yen） 17,922 18,402 18,560 13,037 11,150 Income before income taxes and minority interests （Millions of Yen） 20,166 23,930 17,077 20,167 22,666 Net Income（Millions of Yen） 14,733 15,645 14,279 18,571 18,370 Net Assets(formerly, Shareholder's Equity) (Millions of Yen) 365,860 384,989 408,814 350,991 368,151 Total Assets （Millions of Yen） 499,301 530,610 567,469 466,550 478,514 Net income per share （Yen per share） 256.39 273.75 249.84 324.95 321,42 Cash dividend per share （Yen per share） 40.0 40.0 40.0 40.0 40..0

[Note]
１．From the fiscal year ended March 31, 2007 net assets are presented in the balance sheets.

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