| 2025 |
| 05/13 | （IR情報）18:00 株式報酬型ストック・オプションの発行内容の確定に関するお知らせ |
| 05/12 | 550 | 557 | 539 | 551 | +0.55% | 124,300 | 488億6765万 | +6.58% |
| 05/09 | 545 | 550 | 540 | 548 | +0.92% | 110,100 | 486億158万 | +6.41% |
| 05/08 | 542 | 543 | 535 | 543 | -0.37% | 106,100 | 481億5814万 | +5.85% |
| 05/07 | 533 | 547 | 531 | 545 | +2.06% | 140,600 | 483億3552万 | +6.45% |
| 05/02 | 533 | 536 | 528 | 534 | +0.19% | 149,700 | 473億5994万 | +4.5% |
| 05/01 | 554 | 554 | 532 | 533 | -4.48% | 139,300 | 472億7125万 | +4.31% |
| 04/30 | 535 | 561 | 528 | 558 | +5.28% | 265,900 | 494億8847万 | +9.2% |
| 04/28 | （IR情報）13:00 2025年3月期決算短信〔日本基準〕(連結) |
| 04/28 | （IR情報）13:00 期末配当予想の修正(増配)に関するお知らせ |
| 04/28 | （IR情報）13:00 株式報酬型ストック・オプションの発行について |
| 04/28 | 535 | 545 | 524 | 530 | -0.38% | 220,600 | 470億518万 | +3.92% |
| 04/25 | 526 | 532 | 524 | 532 | +1.14% | 45,200 | 471億8256万 | +4.11% |
| 04/24 | 531 | 533 | 523 | 526 | -0.75% | 65,100 | 466億5042万 | +2.94% |
| 04/23 | 527 | 533 | 526 | 530 | +0.95% | 116,300 | 470億518万 | +3.72% |
| 04/22 | 513 | 525 | 513 | 525 | +2.34% | 104,000 | 465億6174万 | +2.74% |
| 04/21 | 516 | 518 | 513 | 513 | -1.91% | 91,200 | 454億9747万 | +0.39% |
| 04/18 | 513 | 523 | 513 | 523 | +2.35% | 95,200 | 463億8436万 | +2.15% |
| 04/17 | 510 | 511 | 504 | 511 | +0.99% | 46,600 | 453億2009万 | -0.2% |
| 04/16 | 514 | 517 | 503 | 506 | -0.59% | 82,100 | 448億7664万 | -1.17% |
| 04/15 | 516 | 518 | 509 | 509 | -0.59% | 61,600 | 451億4271万 | -0.59% |
| 04/14 | 510 | 515 | 505 | 512 | +1.79% | 69,000 | 454億878万 | 0% |
| 04/11 | 502 | 507 | 483 | 503 | -1.18% | 126,700 | 446億1058万 | -1.76% |
| 04/10 | 500 | 509 | 494 | 509 | +5.38% | 138,900 | 451億4271万 | -0.78% |
| 04/09 | 464 | 489 | 452 | 483 | +1.26% | 262,800 | 428億3680万 | -5.85% |
| 04/08 | 472 | 488 | 467 | 477 | +6.47% | 300,600 | 423億466万 | -7.38% |
| 04/07 | 449 | 459 | 435 | 448 | -5.68% | 336,100 | 397億3268万 | -13.35% |
| 04/04 | 486 | 487 | 467 | 475 | -3.06% | 266,000 | 421億2728万 | -8.48% |
| 04/03 | 493 | 496 | 485 | 490 | -2.58% | 207,900 | 434億5762万 | -5.95% |
| 04/02 | 508 | 510 | 501 | 503 | -0.98% | 91,900 | 446億1058万 | -3.64% |
| 04/01 | 511 | 515 | 508 | 508 | +0.4% | 110,200 | 450億5402万 | -2.68% |
| 03/31 | 512 | 514 | 503 | 506 | -2.69% | 179,400 | 448億7664万 | -3.07% |
| 03/28 | 528 | 529 | 519 | 520 | -3.88% | 131,800 | 461億1829万 | -0.38% |
| 03/27 | 537 | 542 | 533 | 541 | +0.19% | 241,100 | 479億8076万 | +3.64% |
| 03/26 | 539 | 540 | 532 | 540 | +0.93% | 124,000 | 478億9207万 | +3.45% |
| 03/25 | 538 | 539 | 532 | 535 | -0.74% | 97,300 | 474億4863万 | +2.69% |
| 03/24 | 546 | 546 | 532 | 539 | -1.28% | 141,600 | 478億338万 | +3.65% |
| 03/21 | 532 | 546 | 529 | 546 | +2.63% | 189,300 | 484億2421万 | +5.2% |
| 03/19 | 529 | 534 | 529 | 532 | +0.57% | 85,300 | 471億8256万 | +2.7% |
| 03/18 | 529 | 531 | 526 | 529 | +0.38% | 81,800 | 469億1649万 | +2.32% |
| 03/17 | 524 | 537 | 524 | 527 | +1.35% | 154,200 | 467億3911万 | +1.93% |
| 03/14 | 519 | 523 | 516 | 520 | -0.38% | 106,800 | 461億1829万 | +0.78% |
| 03/13 | 517 | 522 | 515 | 522 | +0.97% | 80,800 | 462億9567万 | +1.16% |
| 03/12 | 509 | 520 | 508 | 517 | +2.17% | 108,200 | 458億5222万 | +0.19% |
| 03/11 | 509 | 511 | 501 | 506 | -1.75% | 131,500 | 448億7664万 | -1.94% |
| 03/10 | 519 | 519 | 500 | 515 | -0.19% | 160,100 | 456億7485万 | -0.58% |
| 03/07 | 517 | 519 | 513 | 516 | -1.15% | 102,200 | 457億6353万 | -0.58% |
| 03/06 | 521 | 524 | 518 | 522 | +0.58% | 87,200 | 462億9567万 | +0.38% |
| 03/05 | 520 | 521 | 516 | 519 | +0.58% | 103,700 | 460億2960万 | -0.19% |
| 03/04 | 522 | 523 | 515 | 516 | -1.34% | 78,100 | 457億6353万 | -0.96% |
| 03/03 | 521 | 524 | 516 | 523 | +1.36% | 85,900 | 463億8436万 | +0.19% |
| 02/28 | 515 | 521 | 512 | 516 | -0.96% | 77,600 | 457億6353万 | -1.15% |
| 02/27 | 515 | 522 | 513 | 521 | +1.36% | 60,200 | 462億698万 | -0.38% |
| 02/26 | 506 | 514 | 505 | 514 | +1.18% | 91,900 | 455億8616万 | -1.91% |
| 02/25 | 503 | 510 | 502 | 508 | +0.99% | 69,800 | 450億5402万 | -3.24% |
| 02/21 | 505 | 513 | 499 | 503 | -1.18% | 228,000 | 446億1058万 | -4.37% |
| 02/20 | 520 | 522 | 508 | 509 | -1.93% | 120,800 | 451億4271万 | -3.6% |
| 02/19 | 527 | 527 | 518 | 519 | -1.33% | 56,400 | 460億2960万 | -1.89% |
| 02/18 | 525 | 526 | 522 | 526 | +0.38% | 43,600 | 466億5042万 | -0.75% |
| 02/17 | 523 | 528 | 520 | 524 | +1.35% | 66,200 | 464億7305万 | -1.5% |
| 02/14 | 521 | 523 | 515 | 517 | 0% | 74,200 | 458億5222万 | -3% |
| 02/13 | 514 | 520 | 513 | 517 | +1.37% | 40,300 | 458億5222万 | -3.36% |
| 02/12 | 513 | 517 | 510 | 510 | -0.39% | 81,000 | 452億3140万 | -5.03% |
| 02/10 | 512 | 515 | 512 | 512 | -0.78% | 67,900 | 454億878万 | -5.19% |
| 02/07 | 515 | 520 | 514 | 516 | 0% | 73,100 | 457億6353万 | -4.62% |
| 02/06 | 516 | 521 | 514 | 516 | +0.19% | 48,200 | 457億6353万 | -4.97% |
| 02/05 | 527 | 527 | 514 | 515 | -1.15% | 146,600 | 456億7485万 | -5.5% |
| 02/04 | 533 | 533 | 521 | 521 | -0.57% | 85,000 | 462億698万 | -4.58% |
| 02/03 | 545 | 550 | 523 | 524 | -4.2% | 255,600 | 464億7305万 | -4.2% |
| 01/31 | （IR情報）14:00 2025年3月期第3四半期決算短信〔日本基準〕(連結) |
| 01/31 | 541 | 550 | 534 | 547 | +1.11% | 117,600 | 485億1289万 | -0.18% |
| 01/30 | 537 | 541 | 534 | 541 | +0.74% | 70,100 | 479億8076万 | -1.1% |
| 01/29 | 536 | 540 | 532 | 537 | +0.37% | 69,600 | 476億2600万 | -1.83% |
| 01/28 | 533 | 537 | 532 | 535 | -0.19% | 59,700 | 474億4863万 | -2.19% |
| 01/27 | 535 | 538 | 531 | 536 | +0.75% | 52,500 | 475億3732万 | -2.01% |
| 01/24 | 535 | 538 | 532 | 532 | +0.38% | 71,900 | 471億8256万 | -2.92% |
| 01/23 | 540 | 540 | 530 | 530 | -1.85% | 133,600 | 470億518万 | -3.28% |
| 01/22 | 546 | 547 | 540 | 540 | -1.1% | 52,400 | 478億9207万 | -1.82% |
| 01/21 | 549 | 554 | 544 | 546 | 0% | 49,400 | 484億2421万 | -0.73% |
| 01/20 | 540 | 550 | 540 | 546 | +2.06% | 49,300 | 484億2421万 | -0.55% |
| 01/17 | 540 | 540 | 532 | 535 | -0.93% | 91,000 | 474億4863万 | -2.55% |
| 01/16 | 549 | 552 | 540 | 540 | -1.64% | 65,000 | 478億9207万 | -1.64% |
| 01/15 | 553 | 555 | 545 | 549 | +0.18% | 67,400 | 486億9027万 | 0% |
| 01/14 | 550 | 557 | 540 | 548 | -1.08% | 104,600 | 486億158万 | -0.18% |
| 01/10 | 558 | 561 | 553 | 554 | -0.72% | 61,000 | 491億3372万 | +0.91% |
| 01/09 | 566 | 566 | 555 | 558 | -1.59% | 102,600 | 494億8847万 | +1.64% |
| 01/08 | 570 | 577 | 566 | 567 | -1.39% | 81,100 | 502億8668万 | +3.47% |
| 01/07 | （IR情報）14:00 苫小牧・カーボンニュートラル拠点整備の検討開始について |
| 01/07 | 570 | 576 | 565 | 575 | +0.88% | 104,300 | 509億9619万 | +5.12% |
| 01/06 | 571 | 574 | 563 | 570 | +2.15% | 220,800 | 505億5274万 | +4.59% |
| 2024 |
| 12/30 | 562 | 569 | 557 | 558 | -0.53% | 79,700 | 494億8847万 | +2.57% |
| 12/27 | 558 | 561 | 555 | 561 | +1.08% | 76,200 | 497億5454万 | +3.31% |
| 12/26 | 547 | 555 | 543 | 555 | +1.46% | 103,600 | 492億2241万 | +2.21% |
| 12/25 | 540 | 547 | 536 | 547 | +0.37% | 69,800 | 485億1289万 | +0.92% |
| 12/24 | 542 | 548 | 537 | 545 | +1.3% | 58,700 | 483億3552万 | +0.55% |
| 12/23 | 530 | 541 | 527 | 538 | +2.09% | 82,000 | 477億1469万 | -0.55% |
| 12/20 | 536 | 540 | 527 | 527 | -1.68% | 117,300 | 467億3911万 | -2.77% |
| 12/19 | 537 | 540 | 533 | 536 | -0.74% | 61,000 | 475億3732万 | -1.29% |
| 12/18 | 547 | 547 | 537 | 540 | -1.28% | 84,000 | 478億9207万 | -0.74% |
| 12/17 | 551 | 556 | 544 | 547 | +0.18% | 81,400 | 485億1289万 | +0.55% |
| 12/16 | 553 | 554 | 542 | 546 | -0.91% | 93,900 | 484億2421万 | +0.37% |
| 12/13 | 552 | 558 | 551 | 551 | -1.43% | 119,300 | 488億6765万 | +1.29% |
| 12/12 | 549 | 559 | 547 | 559 | +2.76% | 136,100 | 495億7716万 | +2.76% |
| 12/11 | 541 | 547 | 539 | 544 | +1.3% | 79,800 | 482億4683万 | 0% |
| 12/10 | 548 | 556 | 537 | 537 | -0.37% | 115,100 | 476億2600万 | -1.29% |
| 12/09 | 544 | 545 | 535 | 539 | -1.28% | 123,500 | 478億338万 | -1.1% |
