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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
185
179
184
156
180
175
175
222
187
213
183
192
2001
213
218
190
254
274
274
302
289
254
305
248
197
2002
194
193
184
164
191
173
168
186
176
204
190
200
2003
183
138
161
174
174
194
266
217
244
263
234
236
2004
211
190
261
224
241
236
283
242
242
287
233
241
2005
233
264
271
271
309
318
248
324
253
297
298
252
2006
267
256
322
338
336
345
349
362
361
360
355
354
2007
354
358
362
363
363
367
368
377
372
369
377
381
2008
365
371
379
385
394
404
408
Release Date: 9/2/2008
Next Release Date: 10/2/2008
Referring Pages:
Crude Oil and Natural Gas Exploratory and Development Wells
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