| 2013 |
| 12/25 | 701 | 745 | 701 | 708 | +0.43% | 116,000 | 354億1590万 | -4.45% |
| 12/24 | 701 | 710 | 701 | 705 | -0.28% | 114,000 | 352億6584万 | -4.86% |
| 12/20 | 712 | 725 | 706 | 707 | -2.75% | 90,000 | 353億6588万 | -4.59% |
| 12/19 | 740 | 747 | 725 | 727 | +0.28% | 109,000 | 363億6633万 | -1.76% |
| 12/18 | 707 | 725 | 706 | 725 | +0.69% | 104,000 | 362億6629万 | -1.76% |
| 12/17 | 730 | 733 | 715 | 720 | -1.23% | 195,000 | 360億1617万 | -2.04% |
| 12/16 | 749 | 755 | 727 | 729 | -3.57% | 155,000 | 364億6637万 | -0.55% |
| 12/13 | 747 | 761 | 747 | 756 | +0.53% | 124,000 | 378億1698万 | +3.7% |
| 12/12 | 753 | 754 | 746 | 752 | -0.79% | 83,000 | 376億1689万 | +3.58% |
| 12/11 | 754 | 762 | 754 | 758 | -0.92% | 59,000 | 379億1703万 | +4.7% |
| 12/10 | 766 | 766 | 756 | 765 | -0.13% | 96,000 | 382億6718万 | +5.96% |
| 12/09 | 750 | 769 | 750 | 766 | +1.59% | 96,000 | 383億1721万 | +6.54% |
| 12/06 | 749 | 757 | 749 | 754 | +0.27% | 65,000 | 377億1694万 | +5.31% |
| 12/05 | 743 | 758 | 743 | 752 | +0.4% | 108,000 | 376億1689万 | +5.32% |
| 12/04 | 756 | 760 | 741 | 749 | -1.96% | 113,000 | 374億6682万 | +5.2% |
| 12/03 | 760 | 780 | 757 | 764 | +1.73% | 148,000 | 382億1716万 | +7.45% |
| 12/02 | 16:45 K&Oエナジーグループ株式会社の新規上場承認に関するお知らせ |
| 12/02 | 16:45 自己株式の消却に関するお知らせ |
| 12/02 | 16:45 定款の一部変更に関するお知らせ |
| 12/02 | 16:45 「K&Oエナジーグループ株式会社」及び主要会社の役員人事に関するお知らせ |
| 12/02 | 16:45 代表取締役の異動に関するお知らせ |
| 12/02 | 748 | 758 | 747 | 751 | +0.67% | 56,000 | 375億6687万 | +5.92% |
| 11/29 | 740 | 749 | 731 | 746 | +0.13% | 38,000 | 373億1676万 | +5.22% |
| 11/28 | 747 | 750 | 743 | 745 | -0.13% | 48,000 | 372億6673万 | +5.08% |
| 11/27 | 751 | 755 | 743 | 746 | -1.06% | 66,000 | 373億1676万 | +5.37% |
| 11/26 | 762 | 762 | 750 | 754 | -0.53% | 110,000 | 377億1694万 | +6.5% |
| 11/25 | 746 | 760 | 746 | 758 | +1.34% | 98,000 | 379億1703万 | +7.21% |
| 11/22 | 737 | 754 | 737 | 748 | +2.75% | 149,000 | 374億1680万 | +5.95% |
| 11/21 | 716 | 734 | 716 | 728 | +2.1% | 107,000 | 364億1635万 | +3.12% |
| 11/20 | 713 | 713 | 700 | 713 | +0.99% | 109,000 | 356億6602万 | +0.99% |
| 11/19 | 707 | 710 | 700 | 706 | +0.28% | 48,000 | 353億1586万 | -0.14% |
| 11/18 | 693 | 710 | 693 | 704 | +1.73% | 82,000 | 352億1581万 | -0.56% |
| 11/15 | 675 | 692 | 675 | 692 | +3.44% | 91,000 | 346億1554万 | -2.4% |
| 11/14 | 660 | 669 | 657 | 669 | +2.92% | 88,000 | 334億6503万 | -5.91% |
| 11/13 | 658 | 665 | 650 | 650 | -1.22% | 92,000 | 325億1460万 | -8.96% |
| 11/12 | 653 | 660 | 650 | 658 | +0.77% | 81,000 | 329億1478万 | -8.23% |
| 11/11 | 670 | 680 | 650 | 653 | -3.69% | 147,000 | 326億6467万 | -9.43% |
| 11/08 | 697 | 700 | 663 | 678 | -3.28% | 131,000 | 339億1523万 | -6.48% |
| 11/07 | 16:00 平成25年12月期第3四半期決算短信〔日本基準〕(連結) |
| 11/07 | 698 | 710 | 696 | 701 | +0.43% | 39,000 | 350億6575万 | -3.71% |
| 11/06 | 698 | 701 | 689 | 698 | +1.01% | 36,000 | 349億1568万 | -4.38% |
| 11/05 | 693 | 696 | 691 | 691 | -0.29% | 23,000 | 345億6552万 | -5.73% |
| 11/01 | 696 | 696 | 682 | 693 | +0.14% | 55,000 | 346億6557万 | -5.71% |
| 10/31 | 700 | 700 | 691 | 692 | -2.54% | 73,000 | 346億1554万 | -6.23% |
| 10/30 | 721 | 721 | 710 | 710 | -1.53% | 53,000 | 355億1595万 | -4.18% |
| 10/29 | 720 | 726 | 710 | 721 | -1.23% | 52,000 | 360億6620万 | -2.96% |
| 10/28 | 739 | 739 | 717 | 730 | -1.48% | 48,000 | 365億1640万 | -2.01% |
| 10/25 | 743 | 743 | 732 | 741 | -0.27% | 33,000 | 370億6664万 | -0.8% |
| 10/24 | 17:00 関東天然瓦斯開発株式会社と大多喜ガス株式会社との共同持株会社設立(株式移転)に関する株式移転計画の両社臨時株主総会による承認可決に関するお知らせ |
| 10/24 | 736 | 748 | 726 | 743 | +1.36% | 27,000 | 371億6669万 | -0.67% |
| 10/23 | 740 | 740 | 732 | 733 | -0.27% | 31,000 | 366億6646万 | -2.27% |
| 10/22 | 726 | 740 | 726 | 735 | -0.27% | 19,000 | 367億6651万 | -2.39% |
| 10/21 | 738 | 738 | 733 | 737 | +0.14% | 19,000 | 368億6655万 | -2.38% |
| 10/18 | 734 | 740 | 722 | 736 | +0.68% | 32,000 | 368億1653万 | -2.65% |
| 10/17 | 730 | 740 | 725 | 731 | +0.41% | 53,000 | 365億6642万 | -3.43% |
| 10/16 | 735 | 736 | 711 | 728 | -0.95% | 51,000 | 364億1635万 | -3.96% |
| 10/15 | 732 | 740 | 717 | 735 | -0.27% | 46,000 | 367億6651万 | -3.29% |
| 10/11 | 739 | 751 | 721 | 737 | -0.27% | 43,000 | 368億6655万 | -3.03% |
| 10/10 | 737 | 741 | 735 | 739 | +0.41% | 14,000 | 369億6660万 | -2.76% |
| 10/09 | 730 | 739 | 730 | 736 | -1.21% | 25,000 | 368億1653万 | -3.29% |
| 10/08 | 721 | 745 | 721 | 745 | +2.48% | 22,000 | 372億6673万 | -1.97% |
| 10/07 | 749 | 749 | 722 | 727 | -2.94% | 45,000 | 363億6633万 | -4.09% |
| 10/04 | 742 | 754 | 742 | 749 | -0.4% | 69,000 | 374億6682万 | -1.06% |
| 10/03 | 746 | 764 | 746 | 752 | -1.18% | 54,000 | 376億1689万 | -0.4% |
| 10/02 | 756 | 774 | 756 | 761 | +0.66% | 64,000 | 380億6709万 | +1.2% |
| 10/01 | 761 | 776 | 754 | 756 | +0.13% | 49,000 | 378億1698万 | +0.8% |
| 09/30 | 751 | 760 | 745 | 755 | -0.13% | 52,000 | 460億5233万 | +1.07% |
| 09/27 | 759 | 761 | 750 | 756 | -0.66% | 45,000 | 461億1333万 | +1.61% |
| 09/26 | 746 | 764 | 744 | 761 | 0% | 38,000 | 464億1831万 | +2.84% |
| 09/25 | 16:30 定款の一部変更に関するお知らせ |
| 09/25 | 760 | 781 | 750 | 761 | -1.55% | 38,000 | 464億1831万 | +3.26% |
| 09/24 | 765 | 784 | 758 | 773 | +1.71% | 46,000 | 471億5027万 | +5.17% |
| 09/20 | 783 | 785 | 760 | 760 | -2.94% | 89,000 | 463億5731万 | +3.83% |
| 09/19 | 781 | 791 | 779 | 783 | +0.38% | 49,000 | 477億6023万 | +7.26% |
| 09/18 | 774 | 784 | 774 | 780 | -0.26% | 26,000 | 475億7724万 | +7.14% |
| 09/17 | 786 | 787 | 770 | 782 | -2.01% | 34,000 | 476億9924万 | +7.71% |
| 09/13 | 775 | 798 | 775 | 798 | +1.66% | 81,000 | 486億7518万 | +10.37% |
| 09/12 | 782 | 786 | 754 | 785 | +1.03% | 60,000 | 478億8223万 | +9.03% |
| 09/11 | 770 | 784 | 770 | 777 | +0.91% | 69,000 | 473億9425万 | +8.07% |
| 09/10 | 761 | 770 | 761 | 770 | +1.85% | 51,000 | 469億6728万 | +7.09% |
| 09/09 | 760 | 760 | 741 | 756 | +0.13% | 53,000 | 461億1333万 | +5% |
| 09/06 | 755 | 755 | 745 | 755 | +0.67% | 67,000 | 460億5233万 | +4.72% |
| 09/05 | 741 | 755 | 740 | 750 | +1.08% | 90,000 | 457億4735万 | +3.73% |
| 09/04 | 745 | 755 | 740 | 742 | -0.4% | 98,000 | 452億5938万 | +2.34% |
| 09/03 | 745 | 756 | 741 | 745 | +2.34% | 81,000 | 454億4237万 | +2.34% |
| 09/02 | 713 | 728 | 706 | 728 | +4.75% | 57,000 | 444億543万 | -0.27% |
| 08/30 | 701 | 701 | 688 | 695 | 0% | 60,000 | 423億9254万 | -5.05% |
| 08/29 | 696 | 707 | 694 | 695 | +0.58% | 39,000 | 423億9254万 | -5.44% |
| 08/28 | 693 | 693 | 688 | 691 | -0.43% | 25,000 | 421億4856万 | -6.37% |
| 08/27 | 690 | 694 | 688 | 694 | +0.43% | 71,000 | 423億3155万 | -6.47% |
| 08/26 | 681 | 691 | 681 | 691 | +1.02% | 36,000 | 421億4856万 | -7.25% |
| 08/23 | 692 | 693 | 682 | 684 | +1.03% | 37,000 | 417億2158万 | -8.68% |
| 08/22 | 680 | 681 | 668 | 677 | +0.59% | 32,000 | 412億9461万 | -10.09% |
| 08/21 | 687 | 687 | 667 | 673 | -2.18% | 60,000 | 410億5062万 | -11.21% |
| 08/20 | 698 | 698 | 688 | 688 | -1.43% | 42,000 | 419億6557万 | -9.71% |
| 08/19 | 698 | 707 | 679 | 698 | 0% | 136,000 | 425億7553万 | -8.88% |
| 08/16 | 713 | 719 | 698 | 698 | -2.1% | 90,000 | 425億7553万 | -9.35% |
| 08/15 | 730 | 730 | 711 | 713 | -2.46% | 48,000 | 434億9048万 | -8% |
| 08/14 | 733 | 733 | 715 | 731 | +0.83% | 61,000 | 445億8842万 | -6.16% |
| 08/13 | 710 | 729 | 710 | 725 | +0.42% | 91,000 | 442億2244万 | -7.53% |
| 08/12 | 723 | 738 | 715 | 722 | +1.98% | 120,000 | 440億3945万 | -8.26% |
| 08/09 | 774 | 774 | 707 | 708 | -9% | 288,000 | 431億8550万 | -10.15% |
| 08/08 | 788 | 803 | 764 | 778 | -0.26% | 140,000 | 474億5525万 | -1.27% |
| 08/07 | 780 | 787 | 766 | 780 | -0.76% | 73,000 | 475億7724万 | -0.64% |
| 08/06 | 790 | 790 | 775 | 786 | -0.51% | 57,000 | 479億4322万 | +0.64% |
| 08/05 | 786 | 805 | 786 | 790 | +0.51% | 60,000 | 481億8721万 | +1.67% |
| 08/02 | 826 | 839 | 784 | 786 | -2% | 208,000 | 479億4322万 | +1.81% |
| 08/01 | 826 | 826 | 769 | 802 | -3.14% | 131,000 | 489億1917万 | +4.56% |
