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U.S. Dry Exploratory and Developmental Wells Drilled (Number of Elements)
U.S. Dry Exploratory and Developmental Wells Drilled (Number of Elements)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1973 868 747 811 658 809 821 895 1,022 861 948 906 974
  1974 867 796 895 955 1,028 947 1,115 1,061 1,074 1,149 1,098 1,131
  1975 1,139 861 1,028 1,033 1,043 1,081 1,149 1,194 1,260 1,374 1,237 1,247
  1976 1,316 1,045 1,170 1,129 1,064 1,123 1,075 1,102 1,154 1,238 1,164 1,178
  1977 1,089 997 1,208 1,147 1,246 1,200 1,248 1,337 1,322 1,426 1,386 1,379
  1978 1,346 1,031 1,274 1,304 1,342 1,408 1,405 1,522 1,491 1,570 1,446 1,412
  1979 1,227 997 1,192 1,102 1,250 1,278 1,280 1,514 1,450 1,668 1,558 1,583
  1980 1,604 1,334 1,389 1,458 1,637 1,753 1,807 1,966 1,941 2,001 1,919 1,976
  1981 2,305 1,833 2,102 2,091 2,257 2,343 2,427 2,596 2,467 2,575 2,419 2,538
  1982 2,655 2,095 2,341 2,225 2,013 2,058 2,208 2,255 2,110 2,155 2,070 2,175
  1983 2,251 1,812 1,953 1,624 1,803 1,958 2,042 2,194 2,112 2,323 2,243 2,028
  1984 2,339 1,866 1,845 1,732 2,009 2,452 2,370 2,614 2,185 2,180 2,137 2,155
  1985 2,044 1,555 1,892 1,860 1,729 1,733 1,904 1,964 1,726 1,728 1,370 1,706
  1986 1,815 1,311 1,384 1,116 949 834 929 894 826 857 871 1,013
  1987 895 706 779 849 852 844 964 998 1,066 1,175 983 1,056
  1988 897 756 805 819 894 866 873 895 849 938 740 787
  1989 656 466 607 680 649 680 689 731 752 830 757 739
  1990 696 551 582 622 629 692 750 785 729 862 836 762
  1991 609 660 669 669 622 668 742 673 614 709 636 611
  1992 513 435 520 501 577 493 552 582 557 558 509 487
  1993 449 449 446 526 559 549 675 561 623 573 563 540
  1994 449 337 418 420 416 481 471 553 481 509 483 497
  1995 420 424 374 396 426 469 476 471 485 477 449 452
  1996 475 374 404 404 474 452 494 530 476 564 494 446
  1997 454 449 411 472 463 511 515 542 547 574 517 500
  1998 420 455 387 394 488 460 419 395 328 391 335 333
  1999 275 216 186 220 261 299 287 346 349 354 360 351
  2000 323 295 309 337 368 349 367 457 304 360 326 336
  2001 365 327 314 376 424 418 412 443 371 422 355 326
  2002 309 262 277 294 304 308 317 365 325 352 290 321
  2003 302 259 270 326 315 319 355 363 363 414 320 336
  2004 306 231 335 315 347 312 325 375 384 412 341 358
  2005 354 318 363 371 385 439 393 460 392 422 444 399
  2006 414 394 423 448 430 491 442 465 433 463 475 448
  2007 426 349 422 390 465 406 458 487 438 512 503 418
  2008 452 398 457 443 431 487 539 559 524 564 533 481
  2009 421 347 301 261 247 243 253 261

- = 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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