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Illinois Field Production of Crude Oil (Thousand Barrels)
Illinois Field Production of Crude Oil (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 2,000 1,775 1,960 2,040 2,095 1,930 2,030 2,090 1,980 2,050 2,025 2,115
  1982 1,857 1,684 2,362 2,258 2,221 2,370 2,477 2,528 2,512 2,554 2,471 2,416
  1983 2,582 2,319 2,560 2,352 2,436 2,460 2,467 2,541 2,459 2,449 2,462 2,113
  1984 2,311 2,032 2,382 2,326 2,399 2,352 2,470 2,534 2,408 2,623 2,476 2,555
  1985 2,279 2,062 2,537 2,600 2,591 2,450 2,706 2,652 2,551 2,726 2,571 2,540
  1986 2,664 2,650 2,502 2,376 2,267 2,201 2,241 2,017 2,158 2,158 1,901 2,110
  1987 2,000 1,898 2,080 1,985 1,982 1,995 2,050 2,007 1,983 2,000 1,900 2,100
  1988 1,839 1,821 2,000 1,876 1,931 1,971 1,844 1,970 1,860 1,790 1,779 1,795
  1989 1,861 1,505 1,752 1,638 1,768 1,706 1,749 1,782 1,699 1,757 1,708 1,453
  1990 1,849 1,578 1,737 1,595 1,628 1,569 1,761 1,760 1,623 1,711 1,682 1,461
  1991 1,549 1,430 1,662 1,378 1,701 1,547 1,751 1,688 1,589 1,678 1,512 1,583
  1992 1,604 1,527 1,618 1,600 1,592 1,619 1,652 1,618 1,609 1,600 1,610 1,655
  1993 1,486 1,279 1,551 1,482 1,447 1,420 1,450 1,525 1,505 1,400 1,460 1,400
  1994 1,262 1,357 1,610 1,479 1,495 1,445 1,419 1,469 1,412 1,387 1,379 1,435
  1995 1,389 1,226 1,454 1,337 1,369 1,336 1,353 1,408 1,348 1,357 1,332 1,281
  1996 1,225 1,110 1,375 1,260 1,310 1,295 1,310 1,400 1,390 1,360 1,290 1,250
  1997 1,240 1,210 1,385 1,295 1,330 1,315 1,405 1,420 1,420 1,390 1,375 1,330
  1998 1,295 1,130 1,165 1,155 1,162 1,117 1,135 1,127 1,120 1,113 1,110 1,103
  1999 995 1,035 1,027 1,055 1,005 1,005 997 1,008 1,004 938 1,031 965
  2000 997 1,027 1,025 1,030 1,035 1,040 1,039 1,015 991 1,008 987 1,012
  2001 838 784 876 844 914 820 843 877 778 872 822 824
  2002 857 784 809 878 935 958 1,049 973 902 996 1,024 937
  2003 1,006 880 1,035 989 986 958 1,010 977 944 992 911 1,009
  2004 857 835 970 915 925 913 924 937 918 915 930 945
  2005 819 772 922 858 864 875 854 881 843 844 821 854
  2006 883 783 886 863 892 870 866 889 838 858 842 855
  2007 803 659 874 786 838 790 834 831 816 824 785 769
  2008 812 682 806 798 788 777 834 803 798 813 745 774
  2009 704 702 839 757 760 752 771 760 768 782 735 769
  2010 679 727 810 796 750 768 774 756 761 771 732 744
  2011 728 615 809 719 728 749 774 814 789 822 804 809
  2012 803 780 822 805 847 812 827 837 785 828 809 779
  2013 818 726 812 792 802 755 834 839 782 819 770 791
  2014 700 658 785 804 813 786 839 836 821 865 778 863
  2015 794 664 755 839 816 786 816 809 820 832 760 828
  2016 693 697 786 723 727 747 692 742 708 713 688 721
  2017 687 658 727 676 684 699 673 719 692 696 700 701
  2018 599 620 714 672 737 694 735 763 691 744 732 719
  2019 687 586 699 698 713 606 713 713 703 704 686 736
  2020 741 634 665 462 340 639 656 620 595 611 566 623
  2021 603 440 639 591 584 587 595 609 593 604 608 604
  2022 567 508 625 578 593 590 553 593 585 595 582 556
  2023 596 556 582 542 593 569 548 592 563 601 569 583
  2024 528 590 599 579 606 557 584 581 550 611 553 608

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 2/28/2025
Next Release Date: 3/31/2025

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