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U.S. Crude Oil Developmental Wells Drilled (Number of Elements)
U.S. Crude Oil Developmental Wells Drilled (Number of Elements)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1973 721 643 793 651 840 852 812 905 843 847 850 768
  1974 853 829 1,007 1,076 1,114 1,141 1,173 1,129 1,020 1,196 1,040 1,210
  1975 1,231 986 1,220 1,250 1,267 1,354 1,369 1,452 1,427 1,630 1,361 1,419
  1976 1,617 1,188 1,405 1,389 1,301 1,453 1,259 1,476 1,390 1,457 1,292 1,375
  1977 1,278 1,250 1,561 1,422 1,493 1,570 1,444 1,598 1,535 1,528 1,458 1,444
  1978 1,349 1,089 1,363 1,679 1,589 1,655 1,463 1,613 1,483 1,760 1,547 1,420
  1979 1,259 1,067 1,262 1,292 1,592 1,626 1,747 1,845 1,787 2,173 1,884 1,996
  1980 2,380 2,050 2,235 2,304 2,450 2,684 2,806 2,841 2,809 3,073 2,735 2,815
  1981 3,619 2,863 3,339 3,299 3,427 3,535 3,604 3,694 3,569 3,394 3,304 3,589
  1982 3,697 2,914 3,628 3,386 3,084 2,816 2,961 3,096 2,776 2,857 2,815 2,959
  1983 3,363 2,449 2,774 2,446 2,574 2,814 2,989 3,321 3,150 3,235 3,229 2,975
  1984 3,252 3,162 3,172 3,036 3,432 3,627 3,674 3,651 3,363 3,476 3,463 3,389
  1985 3,029 2,569 3,007 2,843 2,703 2,832 2,920 3,079 2,702 2,889 2,412 2,596
  1986 3,183 2,306 2,273 1,761 1,227 1,065 988 994 1,011 1,118 1,099 1,104
  1987 1,194 1,109 1,006 998 1,146 1,211 1,383 1,487 1,419 1,539 1,444 1,348
  1988 1,270 1,211 1,210 1,165 1,254 1,217 1,041 1,078 914 914 762 755
  1989 769 530 652 820 842 780 821 926 784 878 905 916
  1990 984 831 861 808 841 889 938 1,042 1,016 1,218 1,208 1,145
  1991 1,186 1,119 1,114 1,080 1,013 883 899 956 833 903 727 721
  1992 732 577 711 682 659 658 715 688 769 812 712 806
  1993 648 601 660 599 628 674 733 771 721 787 730 703
  1994 612 507 539 503 457 494 458 588 573 604 542 545
  1995 544 534 592 554 667 645 660 677 603 630 557 615
  1996 571 606 595 644 734 628 724 771 687 803 761 740
  1997 705 747 778 821 896 940 899 894 883 873 809 766
  1998 771 687 707 645 591 608 581 529 500 413 361 300
  1999 253 246 217 252 298 324 366 368 386 471 524 453
  2000 560 507 569 552 642 675 680 721 675 796 668 662
  2001 725 647 741 712 805 776 740 762 664 761 590 533
  2002 561 443 474 503 513 588 618 593 490 617 585 491
  2003 572 489 573 643 686 675 701 704 749 665 564 681
  2004 591 593 663 674 709 721 717 790 805 726 667 668
  2005 684 707 787 781 841 905 893 944 885 910 899 867
  2006 949 859 968 968 1,026 1,140 1,139 1,105 1,088 1,143 1,130 1,063
  2007 987 904 1,016 954 1,066 1,095 1,106 1,166 1,039 1,181 1,043 1,009
  2008 1,099 1,133 1,158 1,243 1,416 1,498 1,494 1,511 1,532 1,748 1,544 1,577
  2009 1,334 1,064 904 817 737 716 933 1,050

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/8/2009
Next Release Date: 11/6/2009

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