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View History:
Monthly
Annual
Download Data (XLS File)
U.S. Crude Oil, Natural Gas, and Dry Exploratory Wells Drilled (Number of Elements)
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1973
656
524
553
477
601
625
687
767
660
710
656
745
1974
630
627
660
703
767
741
793
779
761
826
803
792
1975
804
615
757
729
741
723
832
821
774
892
816
855
1976
898
733
810
733
689
758
718
765
774
778
787
761
1977
740
674
795
751
806
830
800
837
915
954
952
941
1978
876
748
861
890
894
904
942
924
925
1,058
928
957
1979
786
675
804
774
792
893
881
971
965
1,086
1,007
1,031
1980
1,027
925
911
941
940
1,088
1,094
1,157
1,220
1,210
1,172
1,272
1981
1,446
1,170
1,315
1,318
1,401
1,447
1,513
1,615
1,567
1,614
1,529
1,638
1982
1,645
1,304
1,478
1,340
1,238
1,288
1,271
1,311
1,242
1,288
1,171
1,293
1983
1,292
1,044
1,097
948
1,098
1,126
1,154
1,215
1,237
1,288
1,222
1,114
1984
1,367
1,174
1,131
992
1,182
1,424
1,414
1,418
1,268
1,277
1,205
1,206
1985
1,190
968
1,043
995
969
946
1,027
1,074
929
929
753
1,011
1986
1,111
786
786
652
560
477
525
489
428
481
528
625
1987
594
443
485
496
492
500
542
588
647
687
619
641
1988
531
462
512
534
520
523
543
547
507
613
502
519
1989
451
342
395
407
398
396
417
446
487
518
500
490
1990
455
327
374
412
366
437
466
470
419
517
435
472
1991
379
378
386
387
339
379
432
405
328
388
374
360
1992
305
241
283
308
310
287
348
329
292
286
257
229
1993
243
252
246
295
260
316
331
305
313
344
338
316
1994
315
206
281
287
297
351
325
348
324
321
363
366
1995
333
267
279
252
263
274
287
275
325
298
293
265
1996
292
236
244
243
324
277
328
314
245
310
271
249
1997
258
224
222
247
256
255
246
257
316
314
283
277
1998
250
201
193
192
223
248
224
191
190
203
172
158
1999
140
105
86
107
142
144
152
168
188
206
212
192
2000
186
181
191
164
188
185
177
222
202
215
179
195
2001
223
227
193
261
281
293
310
296
266
311
255
211
2002
208
201
190
170
203
191
175
210
193
236
190
209
2003
184
149
174
190
183
199
269
231
259
281
257
266
2004
238
235
293
248
271
274
317
285
317
354
288
298
2005
291
330
334
323
395
366
312
396
323
363
402
350
2006
349
350
358
352
428
441
388
466
414
421
437
417
2007
428
369
463
443
504
479
520
490
497
598
571
458
2008
508
486
498
470
503
473
478
459
443
572
517
453
2009
420
327
291
251
236
227
236
256
-
= 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
Referring Pages:
Crude Oil and Natural Gas Exploratory and Development Wells