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| Rocky Mountain (PADD 4) Ending Stocks of Residuum (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | 510 | 526 | 598 | 470 | 448 | 399 | 456 | 545 | 555 | 657 | 641 | 638 |
| 2006 | 601 | 573 | 544 | 557 | 455 | 440 | 477 | 571 | 666 | 585 | 633 | 574 |
| 2007 | 482 | 459 | 511 | 459 | 484 | 564 | 576 | 494 | 286 | 369 | 396 | 428 |
| 2008 | 343 | 411 | 593 | 574 | 790 | 806 | 636 | 530 | 608 | 700 | 385 | 368 |
| 2009 | 360 | 398 | 436 | 597 | 730 | 810 | 738 | 635 | 579 | 493 | 460 | 462 |
| 2010 | 519 | 466 | 556 | 333 | 468 | 517 | 434 | 438 | 571 | 640 | 548 | 361 |
| 2011 | 450 | 555 | 557 | 579 | 557 | 482 | 370 | 485 | 458 | 438 | 394 | 397 |
| 2012 | 466 | 425 | 384 | 474 | 388 | 526 | 482 | 578 | 511 | 635 | 559 | 611 |
| 2013 | 784 | 643 | 616 | 857 | 554 | 302 | 334 | 232 | 330 | 462 | 724 | 808 |
| 2014 | 723 | 691 | 784 | 706 | 565 | 385 | 367 | 419 | 510 | 586 | 542 | 426 |
| 2015 | 428 | 516 | 450 | 543 | 449 | 412 | 431 | 400 | 560 | 549 | 454 | 483 |
| 2016 | 398 | 416 | 497 | 428 | 445 | 498 | 419 | 528 | 415 | 373 | 333 | 441 |
| 2017 | 524 | 420 | 394 | 410 | 466 | 597 | 513 | 312 | 403 | 553 | 550 | 478 |
| 2018 | 561 | 555 | 523 | 605 | 563 | 528 | 647 | 761 | 718 | 772 | 587 | 470 |
| 2019 | 533 | 424 | 484 | 487 | 601 | 570 | 576 | 548 | 534 | 860 | 603 | 443 |
| 2020 | 531 | 591 | 487 | 416 | 431 | 451 | 426 | 410 | 380 | 386 | 374 | 427 |
| 2021 | 378 | 423 | 398 | 472 | 540 | 403 | 450 | 393 | 326 | 352 | 269 | 377 |
| 2022 | 409 | 332 | 383 | 325 | 378 | 460 | 419 | 480 | 453 | 540 | 683 | 703 |
| 2023 | 486 | 508 | 443 | 430 | 407 | 438 | 431 | 464 | 498 | 420 | 369 | 413 |
| 2024 | 382 | 427 | 482 | 316 | 557 | 567 | 636 | 469 | 377 | 538 | 455 | 515 |
| 2025 | 381 | 375 | 337 | 395 | 467 | 435 | 385 | 261 | 345 | 419 | 387 | 346 |
| 2026 | 330 | 389 | 370 | 370 | 296 | 364 | ||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 8/31/2026 |
| Next Release Date: 9/30/2026 |