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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 325 294 309 335 368 347 365 456 301 359 324 334
  2001 363 324 315 377 421 415 412 442 371 420 355 324
  2002 308 264 274 291 304 306 315 362 323 350 290 319
  2003 300 255 265 321 312 316 347 361 357 412 318 334
  2004 304 228 329 311 341 308 317 366 379 406 337 349
  2005 343 309 353 358 370 418 384 439 360 389 422 367
  2006 390 370 391 409 384 444 404 417 383 417 417 387
  2007 377 300 370 343 422 355 407 449 380 461 441 349
  2008 380 333 431 440 450 460 466 480 488

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/31/2008
Next Release Date: 11/28/2008

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