Home > Petroleum > Distribution and Production of Oil and Gas Wells by State > United States Total Distribution of Wells by Production Rate Bracket
United States Total 2009
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 127,734 35.1 15.4 0.9 0.4 4.8 0.1 | 91,005 19.7 73.4 0.3 2.4 0.7 0.0
1 - 2 | 45,649 12.6 21.8 1.3 1.4 9.5 0.6 | 45,034 9.8 131.1 0.5 8.3 1.3 0.1
2 - 4 | 47,803 13.2 45.3 2.8 2.7 22.3 1.3 | 60,930 13.2 358.3 1.5 16.6 3.6 0.2
4 - 6 | 27,625 7.6 43.6 2.7 4.4 29.4 3.0 | 43,009 9.3 428.4 1.8 28.0 4.4 0.3
6 - 8 | 21,816 6.0 48.3 2.9 6.2 36.7 4.7 | 32,564 7.1 457.8 1.9 39.4 4.5 0.4
8 - 10 | 15,482 4.3 42.9 2.6 7.7 40.0 7.2 | 24,829 5.4 451.1 1.9 50.8 4.3 0.5
Subtotal <=10 | 286,109 78.7 217.3 13.2 2.2 142.7 1.4 | 297,371 64.5 1,900.0 7.9 18.3 18.8 0.2
10 - 12 | 12,642 3.5 43.8 2.7 9.7 33.5 7.4 | 18,967 4.1 420.5 1.8 62.1 4.1 0.6
12 - 15 | 11,801 3.2 50.3 3.1 11.9 37.3 8.8 | 21,718 4.7 591.1 2.5 76.2 5.7 0.7
Subtotal <=15 | 310,552 85.4 311.5 19.0 2.9 213.6 2.0 | 338,056 73.3 2,911.7 12.2 24.6 28.6 0.2
15 - 20 | 13,895 3.8 75.1 4.6 15.2 60.8 12.3 | 23,974 5.2 841.3 3.5 98.5 7.7 0.9
20 - 25 | 8,157 2.2 56.6 3.4 19.6 46.2 16.1 | 16,539 3.6 744.2 3.1 126.5 7.5 1.3
25 - 30 | 6,276 1.7 52.3 3.2 23.7 46.5 21.1 | 11,638 2.5 644.9 2.7 156.7 5.1 1.2
30 - 40 | 7,207 2.0 75.3 4.6 30.0 69.0 27.5 | 16,083 3.5 1,122.3 4.7 197.4 9.5 1.7
40 - 50 | 3,684 1.0 49.0 3.0 39.1 42.1 33.5 | 9,959 2.2 895.6 3.7 255.6 7.1 2.0
50 - 100 | 7,934 2.2 159.7 9.7 59.4 171.4 63.7 | 22,546 4.9 3,156.6 13.2 402.7 22.4 2.9
100 - 200 | 3,070 0.8 119.1 7.3 118.3 115.9 115.1 | 13,444 2.9 3,520.4 14.7 782.4 30.8 6.8
200 - 400 | 1,469 0.4 109.9 6.7 233.9 122.3 260.3 | 5,528 1.2 2,572.2 10.7 1,545.1 22.3 13.4
400 - 800 | 663 0.2 92.3 5.6 447.9 128.5 623.6 | 2,038 0.4 1,708.3 7.1 3,007.9 22.2 39.0
800 - 1600 | 264 0.1 77.8 4.7 900.8 114.4 1,325.0 | 816 0.2 1,342.4 5.6 6,039.3 25.0 112.6
1600 - 3200 | 145 0.0 86.8 5.3 1,770.4 121.8 2,485.6 | 460 0.1 1,633.2 6.8 11,907.5 35.8 261.0
3200 - 6400 | 66 0.0 88.1 5.4 3,950.0 92.9 4,167.6 | 247 0.1 1,913.3 8.0 22,917.6 46.1 552.0
6400 - 12800 | 47 0.0 112.4 6.8 7,428.9 132.1 8,729.2 | 51 0.0 725.3 3.0 46,468.5 9.9 635.0
> 12800 | 30 0.0 176.5 10.7 18,162.2 136.8 14,083.1 | 9 0.0 227.5 0.9 84,081.9 3.3 1,204.3
Total | 363,459 100.0 1,642.3 100.0 12.9 1,614.4 12.7 | 461,388 100.0 23,959.1 100.0 148.5 283.2 1.8
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2008
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 129,760 35.2 15.8 1.0 0.3 4.9 0.1 | 102,698 21.3 78.5 0.3 2.2 0.7 0.0
1 - 2 | 45,543 12.3 22.1 1.5 1.4 9.5 0.6 | 48,363 10.0 143.4 0.6 8.3 1.4 0.1
2 - 4 | 48,890 13.2 46.7 3.1 2.7 22.7 1.3 | 63,897 13.3 378.1 1.6 16.6 3.7 0.2
4 - 6 | 27,976 7.6 44.5 2.9 4.4 29.1 2.9 | 44,401 9.2 444.3 1.9 28.0 4.3 0.3
6 - 8 | 20,663 5.6 45.8 3.0 6.2 34.1 4.6 | 33,061 6.9 466.9 2.0 39.6 4.3 0.4
8 - 10 | 17,214 4.7 47.2 3.1 7.6 45.8 7.4 | 24,957 5.2 452.6 1.9 50.8 4.3 0.5
Subtotal <=10 | 290,046 78.6 222.2 14.7 2.1 146.1 1.4 | 317,377 65.8 1,963.9 8.2 17.4 18.7 0.2
10 - 12 | 12,627 3.4 44.0 2.9 9.7 32.7 7.2 | 19,395 4.0 430.5 1.8 62.3 4.1 0.6
12 - 15 | 12,236 3.3 52.0 3.4 11.9 37.6 8.6 | 21,272 4.4 577.2 2.4 76.5 5.2 0.7
Subtotal <=15 | 314,909 85.3 318.1 21.1 2.8 216.4 1.9 | 358,044 74.3 2,971.6 12.5 23.4 28.0 0.2
15 - 20 | 14,036 3.8 76.2 5.0 15.4 57.6 11.6 | 24,097 5.0 837.5 3.5 98.6 7.5 0.9
20 - 25 | 8,729 2.4 60.9 4.0 19.9 48.2 15.7 | 16,136 3.3 719.4 3.0 126.6 7.0 1.2
25 - 30 | 6,389 1.7 53.3 3.5 24.1 42.7 19.2 | 11,312 2.3 616.6 2.6 156.2 5.3 1.3
30 - 40 | 7,118 1.9 72.7 4.8 30.0 65.0 26.8 | 15,166 3.1 1,033.3 4.3 197.5 9.0 1.7
40 - 50 | 4,098 1.1 53.9 3.6 39.2 43.3 31.5 | 9,910 2.1 864.5 3.6 255.3 7.4 2.2
50 - 100 | 8,167 2.2 160.2 10.6 59.1 166.0 61.3 | 22,566 4.7 3,010.4 12.6 404.5 22.6 3.0
100 - 200 | 3,082 0.8 115.5 7.6 117.9 114.4 116.8 | 14,824 3.1 3,520.4 14.8 782.4 33.1 7.4
200 - 400 | 1,349 0.4 97.0 6.4 229.3 117.3 277.2 | 6,367 1.3 2,726.2 11.4 1,549.4 23.2 13.2
400 - 800 | 692 0.2 98.9 6.5 446.2 132.5 598.1 | 2,159 0.4 1,697.2 7.1 3,010.3 23.5 41.8
800 - 1600 | 294 0.1 82.0 5.4 873.9 129.1 1,375.5 | 754 0.2 1,251.2 5.3 5,858.1 24.5 114.6
1600 - 3200 | 147 0.0 87.3 5.8 1,725.3 130.1 2,572.1 | 425 0.1 1,540.4 6.5 11,723.5 37.1 282.0
3200 - 6400 | 63 0.0 79.9 5.3 3,759.0 95.2 4,477.6 | 248 0.1 1,932.3 8.1 22,992.3 44.8 532.5
6400 - 12800 | 42 0.0 93.4 6.2 7,301.6 102.9 8,045.8 | 63 0.0 977.6 4.1 44,276.1 19.3 872.2
> 12800 | 13 0.0 60.8 4.0 15,461.2 50.9 12,937.3 | 5 0.0 126.7 0.5 76,859.0 3.0 1,826.8
Total | 369,128 100.0 1,510.2 100.0 11.5 1,511.6 11.6 | 482,076 100.0 23,825.2 100.0 141.4 295.1 1.8
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2007
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 126,018 35.2 15.4 1.0 0.3 4.6 0.1 | 89,127 20.0 74.9 0.3 2.4 0.7 0.0
1 - 2 | 43,839 12.2 21.5 1.4 1.4 8.9 0.6 | 45,421 10.2 134.4 0.6 8.3 1.4 0.1
2 - 4 | 47,166 13.2 45.1 2.9 2.7 21.7 1.3 | 59,311 13.3 350.4 1.5 16.6 3.4 0.2
4 - 6 | 27,071 7.6 43.4 2.8 4.5 27.2 2.8 | 41,528 9.3 414.5 1.8 28.0 4.0 0.3
6 - 8 | 20,576 5.7 44.9 2.9 6.1 36.9 5.0 | 31,000 7.0 435.6 1.9 39.5 4.0 0.4
8 - 10 | 15,764 4.4 43.5 2.8 7.7 42.0 7.4 | 24,118 5.4 435.5 1.9 50.9 4.0 0.5
Subtotal <=10 | 280,434 78.3 213.8 13.9 2.1 141.3 1.4 | 290,505 65.2 1,845.4 8.1 17.9 17.5 0.2
10 - 12 | 12,093 3.4 42.4 2.8 9.8 31.9 7.4 | 18,646 4.2 414.1 1.8 62.6 3.5 0.5
12 - 15 | 12,884 3.6 54.4 3.5 11.8 40.5 8.8 | 20,999 4.7 566.3 2.5 76.1 5.4 0.7
Subtotal <=15 | 305,411 85.2 310.6 20.3 2.8 213.7 2.0 | 330,150 74.1 2,825.7 12.4 24.1 26.4 0.2
15 - 20 | 12,843 3.6 70.0 4.6 15.4 51.6 11.3 | 23,001 5.2 798.5 3.5 98.6 7.0 0.9
20 - 25 | 8,874 2.5 62.3 4.1 20.0 45.8 14.7 | 15,189 3.4 674.5 3.0 126.7 6.4 1.2
25 - 30 | 5,946 1.7 50.7 3.3 24.5 37.8 18.2 | 10,654 2.4 579.3 2.6 156.6 4.8 1.3
30 - 40 | 7,963 2.2 83.7 5.5 30.4 79.5 28.8 | 14,328 3.2 973.6 4.3 197.5 8.1 1.6
40 - 50 | 3,988 1.1 53.0 3.5 39.0 45.1 33.2 | 9,133 2.0 791.8 3.5 255.6 6.6 2.1
50 - 100 | 7,813 2.2 157.6 10.3 59.9 155.8 59.3 | 20,656 4.6 2,704.7 11.9 399.8 21.6 3.2
100 - 200 | 2,878 0.8 110.5 7.2 118.6 110.7 118.8 | 13,477 3.0 3,150.5 13.9 769.5 33.1 8.1
200 - 400 | 1,379 0.4 107.1 7.0 234.9 123.5 270.8 | 5,571 1.2 2,379.7 10.5 1,540.7 22.9 14.9
400 - 800 | 668 0.2 96.3 6.3 441.6 140.1 642.9 | 2,073 0.5 1,675.2 7.4 3,013.0 24.3 43.7
800 - 1600 | 279 0.1 79.0 5.1 893.5 114.7 1,298.3 | 822 0.2 1,429.7 6.3 6,002.5 25.6 107.5
1600 - 3200 | 144 0.0 87.3 5.7 1,854.0 126.1 2,677.8 | 408 0.1 1,565.1 6.9 11,841.8 37.3 282.4
3200 - 6400 | 90 0.0 101.0 6.6 3,602.9 135.2 4,822.9 | 243 0.1 1,879.6 8.3 22,930.6 44.6 544.5
6400 - 12800 | 49 0.0 119.9 7.8 7,363.1 163.0 10,013.6 | 88 0.0 1,182.7 5.2 43,664.0 24.2 892.8
> 12800 | 9 0.0 44.5 2.9 14,192.1 53.9 17,205.7 | 3 0.0 89.7 0.4 81,903.3 3.1 2,799.4
Total | 358,334 100.0 1,533.3 100.0 12.0 1,596.6 12.5 | 445,796 100.0 22,700.4 100.0 145.8 296.0 1.9
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2006
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 126,267 35.4 15.5 1.0 0.3 4.6 0.1 | 86,397 20.3 72.6 0.3 2.4 0.7 0.0
1 - 2 | 42,740 12.0 21.0 1.4 1.4 8.6 0.6 | 43,322 10.2 127.9 0.6 8.3 1.2 0.1
2 - 4 | 47,273 13.3 45.3 2.9 2.7 22.0 1.3 | 56,146 13.2 329.5 1.5 16.5 3.4 0.2
4 - 6 | 27,418 7.7 43.8 2.8 4.5 26.9 2.7 | 38,460 9.1 382.4 1.8 28.0 3.8 0.3
6 - 8 | 18,793 5.3 42.0 2.7 6.2 29.2 4.3 | 29,093 6.8 406.4 1.9 39.4 4.0 0.4
8 - 10 | 14,512 4.1 40.7 2.6 7.8 33.6 6.5 | 22,611 5.3 407.7 1.9 50.9 3.7 0.5
Subtotal <=10 | 277,003 77.7 208.3 13.4 2.1 124.9 1.3 | 276,029 65.0 1,726.4 8.0 17.7 16.9 0.2
10 - 12 | 12,951 3.6 42.7 2.8 9.2 45.5 9.8 | 18,047 4.2 398.3 1.8 62.2 3.7 0.6
12 - 15 | 13,634 3.8 58.1 3.7 11.9 41.9 8.6 | 20,621 4.9 557.2 2.6 76.5 4.9 0.7
Subtotal <=15 | 303,588 85.1 309.1 19.9 2.8 212.4 2.0 | 314,697 74.1 2,681.9 12.4 24.1 25.5 0.2
15 - 20 | 13,519 3.8 74.4 4.8 15.5 52.5 10.9 | 22,928 5.4 792.8 3.7 98.5 7.4 0.9
20 - 25 | 8,428 2.4 59.3 3.8 20.0 43.1 14.5 | 14,823 3.5 659.2 3.0 127.4 5.7 1.1
25 - 30 | 5,846 1.6 50.0 3.2 24.4 35.6 17.3 | 10,561 2.5 570.4 2.6 155.9 4.9 1.3
30 - 40 | 7,209 2.0 75.6 4.9 30.2 63.4 25.3 | 13,631 3.2 926.0 4.3 197.9 7.4 1.6
40 - 50 | 4,792 1.3 62.8 4.1 38.1 60.4 36.7 | 8,753 2.1 754.9 3.5 254.2 6.9 2.3
50 - 100 | 7,687 2.2 153.6 9.9 58.9 181.0 69.4 | 19,159 4.5 2,500.6 11.6 400.3 20.2 3.2
100 - 200 | 2,969 0.8 112.5 7.3 113.4 123.1 124.1 | 11,606 2.7 2,781.3 12.9 795.1 21.5 6.1
200 - 400 | 1,335 0.4 100.8 6.5 233.2 118.2 273.3 | 5,211 1.2 2,346.6 10.9 1,549.5 21.3 14.1
400 - 800 | 601 0.2 89.3 5.8 449.3 109.9 552.8 | 1,859 0.4 1,576.5 7.3 3,043.8 23.6 45.6
800 - 1600 | 253 0.1 74.3 4.8 891.2 112.3 1,346.9 | 814 0.2 1,446.6 6.7 5,991.5 27.9 115.7
1600 - 3200 | 161 0.0 98.6 6.4 1,887.0 137.4 2,628.7 | 452 0.1 1,766.2 8.2 11,948.9 42.1 284.9
3200 - 6400 | 96 0.0 114.0 7.4 3,640.1 150.3 4,799.8 | 228 0.1 1,800.8 8.3 23,391.1 43.5 564.6
6400 - 12800 | 47 0.0 110.4 7.1 7,016.0 150.5 9,565.7 | 55 0.0 837.2 3.9 43,472.2 17.9 931.0
> 12800 | 13 0.0 66.3 4.3 13,969.7 94.5 19,918.6 | 6 0.0 174.1 0.8 81,676.2 6.3 2,954.4
Total | 356,544 100.0 1,551.0 100.0 12.2 1,644.4 13.0 | 424,783 100.0 21,615.0 100.0 145.9 282.1 1.9
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2005
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 125,089 35.7 15.1 1.0 0.3 4.5 0.1 | 81,293 20.3 68.4 0.3 2.4 0.6 0.0
1 - 2 | 42,131 12.0 20.6 1.3 1.4 8.7 0.6 | 40,731 10.2 120.3 0.6 8.3 1.2 0.1
2 - 4 | 45,722 13.0 44.1 2.8 2.7 20.8 1.3 | 52,536 13.1 307.3 1.4 16.4 3.3 0.2
4 - 6 | 25,662 7.3 41.3 2.6 4.5 24.0 2.6 | 36,078 9.0 358.5 1.7 27.9 3.7 0.3
6 - 8 | 19,256 5.5 43.2 2.8 6.3 30.0 4.3 | 26,773 6.7 374.7 1.7 39.4 3.8 0.4
8 - 10 | 13,948 4.0 39.5 2.5 7.9 33.0 6.6 | 21,168 5.3 382.5 1.8 50.9 3.6 0.5
Subtotal <=10 | 271,808 77.5 203.9 13.0 2.1 120.9 1.2 | 258,579 64.6 1,611.7 7.5 17.6 16.3 0.2
10 - 12 | 11,977 3.4 40.1 2.6 9.3 43.9 10.2 | 17,282 4.3 380.4 1.8 62.2 3.6 0.6
12 - 15 | 13,317 3.8 58.0 3.7 12.2 38.3 8.0 | 19,465 4.9 526.8 2.5 76.6 4.6 0.7
Subtotal <=15 | 297,102 84.7 302.0 19.3 2.8 203.2 1.9 | 295,326 73.8 2,518.8 11.7 24.0 24.5 0.2
15 - 20 | 13,801 3.9 75.4 4.8 15.4 55.0 11.3 | 22,318 5.6 772.2 3.6 98.6 6.9 0.9
20 - 25 | 8,511 2.4 60.5 3.9 20.1 40.9 13.6 | 14,358 3.6 638.5 3.0 127.6 5.3 1.1
25 - 30 | 5,867 1.7 50.4 3.2 24.5 36.7 17.8 | 9,940 2.5 539.3 2.5 156.3 4.5 1.3
30 - 40 | 6,993 2.0 74.1 4.7 30.5 55.5 22.8 | 13,222 3.3 897.1 4.2 197.6 7.2 1.6
40 - 50 | 5,073 1.4 67.8 4.3 38.4 62.9 35.7 | 8,199 2.0 708.8 3.3 256.0 5.5 2.0
50 - 100 | 7,967 2.3 159.0 10.1 58.7 180.3 66.6 | 17,579 4.4 2,289.7 10.7 397.9 19.4 3.4
100 - 200 | 2,892 0.8 113.3 7.2 117.1 117.1 121.1 | 10,615 2.7 2,546.3 11.9 792.6 20.7 6.4
200 - 400 | 1,355 0.4 102.9 6.6 230.3 123.0 275.2 | 5,036 1.3 2,327.7 10.8 1,559.4 21.7 14.6
400 - 800 | 637 0.2 95.3 6.1 447.4 133.3 625.8 | 2,011 0.5 1,749.3 8.1 3,007.6 25.4 43.7
800 - 1600 | 277 0.1 81.1 5.2 879.2 120.9 1,311.5 | 815 0.2 1,444.9 6.7 6,076.4 26.9 113.3
1600 - 3200 | 144 0.0 83.6 5.3 1,842.9 120.5 2,654.7 | 453 0.1 1,761.3 8.2 11,777.0 45.5 304.3
3200 - 6400 | 98 0.0 114.9 7.3 3,562.3 171.5 5,317.1 | 247 0.1 1,865.2 8.7 22,251.8 50.1 598.0
6400 - 12800 | 42 0.0 102.1 6.5 7,046.5 137.5 9,492.0 | 75 0.0 1,156.6 5.4 44,196.5 26.3 1,006.4
> 12800 | 19 0.0 84.5 5.4 12,917.5 140.3 21,453.1 | 10 0.0 253.4 1.2 72,463.1 11.2 3,191.1
Total | 350,778 100.0 1,566.8 100.0 12.5 1,698.7 13.6 | 400,204 100.0 21,469.2 100.0 153.5 301.3 2.2
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2004
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 128,692 36.7 15.3 1.0 0.3 4.7 0.1 | 95,780 22.6 82.9 0.4 2.5 0.7 0.0
1 - 2 | 41,938 12.0 20.5 1.3 1.4 9.0 0.6 | 48,741 11.5 144.7 0.6 8.3 1.3 0.1
2 - 4 | 46,206 13.2 44.9 2.8 2.7 21.3 1.3 | 56,469 13.3 331.3 1.5 16.4 3.4 0.2
4 - 6 | 25,615 7.3 41.8 2.6 4.5 23.3 2.5 | 35,784 8.5 355.9 1.6 27.9 3.7 0.3
6 - 8 | 17,458 5.0 39.3 2.4 6.2 27.2 4.3 | 26,305 6.2 367.6 1.6 39.2 3.9 0.4
8 - 10 | 13,397 3.8 38.6 2.4 8.0 26.9 5.6 | 20,199 4.8 366.0 1.6 50.9 3.5 0.5
Subtotal <=10 | 273,306 78.0 200.5 12.5 2.0 112.6 1.1 | 283,278 66.9 1,648.3 7.4 16.4 16.5 0.2
10 - 12 | 10,980 3.1 37.8 2.4 9.6 33.4 8.4 | 16,250 3.8 359.3 1.6 62.2 3.5 0.6
12 - 15 | 13,978 4.0 58.9 3.7 11.7 53.1 10.5 | 19,269 4.6 522.9 2.3 76.6 4.5 0.7
Subtotal <=15 | 298,264 85.1 297.2 18.5 2.8 199.1 1.9 | 318,797 75.3 2,530.5 11.3 22.3 24.5 0.2
15 - 20 | 13,456 3.8 74.6 4.6 15.4 50.4 10.4 | 21,762 5.1 759.9 3.4 98.9 6.2 0.8
20 - 25 | 8,442 2.4 60.4 3.8 20.1 40.5 13.5 | 14,163 3.3 632.6 2.8 127.4 5.4 1.1
25 - 30 | 5,437 1.6 46.5 2.9 24.3 34.2 17.9 | 10,047 2.4 542.5 2.4 154.6 5.4 1.5
30 - 40 | 7,364 2.1 78.7 4.9 30.5 59.8 23.2 | 12,843 3.0 874.9 3.9 197.7 6.9 1.6
40 - 50 | 3,905 1.1 53.4 3.3 39.6 39.9 29.6 | 8,238 1.9 704.1 3.2 250.4 7.6 2.7
50 - 100 | 8,187 2.3 166.2 10.3 59.0 176.4 62.6 | 18,504 4.4 2,321.3 10.4 376.8 41.0 6.7
100 - 200 | 2,598 0.7 101.9 6.3 117.8 100.1 115.7 | 9,717 2.3 2,381.0 10.7 794.7 19.6 6.5
200 - 400 | 1,410 0.4 109.3 6.8 233.4 128.7 274.9 | 5,146 1.2 2,396.3 10.7 1,514.5 33.2 21.0
400 - 800 | 712 0.2 105.2 6.5 444.1 148.8 628.0 | 2,200 0.5 1,951.2 8.7 3,017.5 29.3 45.4
800 - 1600 | 297 0.1 83.5 5.2 866.1 122.2 1,267.4 | 958 0.2 1,689.8 7.6 5,991.2 31.8 112.8
1600 - 3200 | 154 0.0 89.6 5.6 1,833.8 129.3 2,645.0 | 486 0.1 1,843.3 8.3 11,728.5 49.4 314.5
3200 - 6400 | 96 0.0 114.7 7.1 3,700.5 184.2 5,943.9 | 296 0.1 2,124.0 9.5 21,617.8 59.1 601.6
6400 - 12800 | 62 0.0 143.4 8.9 7,424.1 213.2 11,038.9 | 90 0.0 1,366.9 6.1 44,369.4 33.9 1,101.5
> 12800 | 20 0.0 82.0 5.1 12,215.2 156.0 23,229.7 | 6 0.0 205.7 0.9 99,202.8 2.8 1,339.0
Total | 350,404 100.0 1,606.6 100.0 12.8 1,782.7 14.2 | 423,253 100.0 22,324.1 100.0 150.2 356.2 2.4
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2003
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 126,585 36.1 14.9 0.9 0.3 4.7 0.1 | 93,153 23.0 81.9 0.4 2.5 0.7 0.0
1 - 2 | 41,800 11.9 20.4 1.2 1.4 9.2 0.6 | 46,795 11.6 139.5 0.6 8.3 1.2 0.1
2 - 4 | 46,424 13.2 45.0 2.7 2.7 21.4 1.3 | 53,730 13.3 315.0 1.4 16.4 3.2 0.2
4 - 6 | 25,999 7.4 42.0 2.5 4.5 24.4 2.6 | 33,692 8.3 334.7 1.5 27.8 3.6 0.3
6 - 8 | 17,261 4.9 38.8 2.3 6.2 26.5 4.3 | 24,437 6.0 341.4 1.5 39.3 3.6 0.4
8 - 10 | 13,830 3.9 39.7 2.3 8.0 28.1 5.7 | 19,398 4.8 350.5 1.6 50.9 3.5 0.5
Subtotal <=10 | 271,899 77.4 200.7 11.9 2.1 114.2 1.2 | 271,205 67.0 1,563.1 7.1 16.2 15.8 0.2
10 - 12 | 10,495 3.0 36.2 2.1 9.6 30.0 8.0 | 15,229 3.8 335.1 1.5 62.0 3.4 0.6
12 - 15 | 12,951 3.7 54.6 3.2 11.7 48.8 10.5 | 18,046 4.5 490.1 2.2 76.6 4.2 0.7
Subtotal <=15 | 295,345 84.1 291.5 17.2 2.8 193.1 1.8 | 304,480 75.3 2,388.3 10.8 22.0 23.5 0.2
15 - 20 | 14,725 4.2 81.6 4.8 15.5 54.7 10.4 | 21,378 5.3 748.5 3.4 99.0 6.1 0.8
20 - 25 | 8,714 2.5 62.1 3.7 20.0 42.3 13.6 | 13,856 3.4 622.7 2.8 127.8 5.0 1.0
25 - 30 | 5,243 1.5 45.6 2.7 24.6 29.2 15.7 | 10,027 2.5 540.9 2.4 154.6 5.6 1.6
30 - 40 | 7,675 2.2 82.1 4.9 30.6 63.1 23.5 | 12,763 3.2 864.1 3.9 195.9 8.3 1.9
40 - 50 | 4,320 1.2 57.9 3.4 38.8 52.0 34.9 | 7,662 1.9 663.9 3.0 254.8 5.7 2.2
50 - 100 | 9,112 2.6 180.4 10.7 57.2 229.1 72.6 | 16,548 4.1 2,123.9 9.6 387.6 27.4 5.0
100 - 200 | 3,212 0.9 120.6 7.1 110.9 146.9 135.2 | 8,807 2.2 2,177.0 9.8 795.4 18.6 6.8
200 - 400 | 1,403 0.4 110.7 6.5 233.4 128.2 270.3 | 4,694 1.2 2,242.1 10.1 1,575.1 21.0 14.8
400 - 800 | 706 0.2 104.1 6.2 439.4 155.2 655.3 | 2,234 0.6 2,031.1 9.2 3,029.4 29.5 44.0
800 - 1600 | 344 0.1 97.7 5.8 873.3 149.1 1,332.2 | 1,075 0.3 1,878.8 8.5 5,879.6 40.1 125.4
1600 - 3200 | 136 0.0 78.2 4.6 1,776.7 118.4 2,689.6 | 585 0.1 2,167.3 9.8 11,791.7 58.1 316.3
3200 - 6400 | 100 0.0 114.9 6.8 3,705.7 151.7 4,893.2 | 299 0.1 2,267.7 10.3 22,573.2 66.4 661.3
6400 - 12800 | 68 0.0 157.8 9.3 6,939.6 279.1 12,275.3 | 72 0.0 1,057.4 4.8 42,960.3 22.2 900.3
> 12800 | 24 0.0 106.2 6.3 13,478.2 173.2 21,984.8 | 11 0.0 331.1 1.5 86,262.4 6.6 1,714.5
Total | 351,127 100.0 1,691.5 100.0 13.5 1,965.4 15.7 | 404,491 100.0 22,104.7 100.0 155.3 344.1 2.4
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2002
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 128,881 36.3 15.0 0.9 0.3 4.7 0.1 | 88,741 22.9 78.3 0.4 2.5 0.7 0.0
1 - 2 | 41,702 11.8 20.2 1.2 1.3 9.1 0.6 | 45,493 11.7 135.6 0.6 8.3 1.2 0.1
2 - 4 | 46,168 13.0 44.7 2.6 2.7 21.1 1.3 | 51,740 13.4 301.9 1.4 16.3 3.2 0.2
4 - 6 | 26,518 7.5 42.8 2.5 4.5 24.6 2.6 | 32,238 8.3 317.3 1.4 27.7 3.6 0.3
6 - 8 | 17,673 5.0 39.8 2.3 6.3 27.5 4.3 | 23,020 5.9 320.0 1.5 39.1 3.5 0.4
8 - 10 | 13,720 3.9 39.7 2.3 8.0 27.9 5.6 | 17,791 4.6 319.6 1.5 50.6 3.3 0.5
Subtotal <=10 | 274,662 77.4 202.2 11.9 2.1 114.9 1.2 | 259,023 66.9 1,472.6 6.7 16.0 15.6 0.2
10 - 12 | 10,119 2.9 35.2 2.1 9.7 27.9 7.7 | 14,412 3.7 318.1 1.4 62.1 3.2 0.6
12 - 15 | 11,965 3.4 50.2 3.0 11.7 44.1 10.3 | 16,919 4.4 460.0 2.1 76.5 4.1 0.7
Subtotal <=15 | 296,746 83.7 287.6 16.9 2.7 186.9 1.8 | 290,354 75.0 2,250.7 10.3 21.8 22.9 0.2
15 - 20 | 16,028 4.5 88.6 5.2 15.4 62.6 10.9 | 20,480 5.3 717.8 3.3 99.0 5.8 0.8
20 - 25 | 8,543 2.4 61.0 3.6 19.9 42.8 14.0 | 13,748 3.6 620.5 2.8 127.9 5.0 1.0
25 - 30 | 6,000 1.7 51.7 3.0 24.3 42.0 19.7 | 10,063 2.6 540.4 2.5 152.8 6.6 1.9
30 - 40 | 7,650 2.2 83.3 4.9 30.9 61.8 22.9 | 12,263 3.2 839.2 3.8 196.8 7.2 1.7
40 - 50 | 4,287 1.2 59.5 3.5 39.8 43.1 28.8 | 7,300 1.9 641.8 2.9 255.4 5.1 2.0
50 - 100 | 9,074 2.6 180.5 10.6 57.2 210.5 66.7 | 15,949 4.1 2,078.9 9.5 388.4 26.1 4.9
100 - 200 | 3,503 1.0 129.5 7.6 107.6 177.0 147.0 | 8,220 2.1 2,086.8 9.5 792.2 19.7 7.5
200 - 400 | 1,387 0.4 110.1 6.5 233.6 129.3 274.1 | 4,440 1.1 2,205.6 10.0 1,581.1 20.6 14.8
400 - 800 | 748 0.2 111.7 6.6 445.8 169.5 676.3 | 2,286 0.6 2,176.8 9.9 3,090.4 29.5 41.9
800 - 1600 | 367 0.1 103.1 6.1 863.5 158.5 1,327.3 | 1,088 0.3 1,963.8 8.9 5,889.3 42.4 127.1
1600 - 3200 | 139 0.0 76.9 4.5 1,807.4 105.9 2,491.4 | 612 0.2 2,279.5 10.4 11,728.6 62.9 323.7
3200 - 6400 | 79 0.0 90.7 5.3 3,749.5 120.4 4,975.0 | 320 0.1 2,313.8 10.5 21,780.3 73.8 694.4
6400 - 12800 | 60 0.0 134.8 7.9 6,955.5 220.1 11,357.0 | 67 0.0 888.7 4.0 41,589.6 27.4 1,282.4
> 12800 | 29 0.0 132.8 7.8 13,767.1 241.5 25,026.1 | 13 0.0 348.8 1.6 78,465.9 13.5 3,045.3
Total | 354,640 100.0 1,702.0 100.0 13.4 1,971.8 15.5 | 387,203 100.0 21,953.2 100.0 160.7 368.5 2.7
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2001
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 129,916 36.2 15.1 0.9 0.3 4.7 0.1 | 85,801 22.8 76.6 0.3 2.5 0.6 0.0
1 - 2 | 41,773 11.6 20.4 1.2 1.4 8.8 0.6 | 44,896 11.9 132.8 0.6 8.3 1.3 0.1
2 - 4 | 45,388 12.7 44.0 2.6 2.7 20.9 1.3 | 50,823 13.5 294.6 1.3 16.3 3.3 0.2
4 - 6 | 26,751 7.5 43.2 2.5 4.5 24.2 2.5 | 30,504 8.1 298.5 1.3 27.6 3.6 0.3
6 - 8 | 18,179 5.1 40.9 2.4 6.3 27.2 4.2 | 22,029 5.9 303.4 1.3 38.9 3.7 0.5
8 - 10 | 13,770 3.8 39.8 2.3 8.0 28.7 5.8 | 16,608 4.4 297.2 1.3 50.6 3.1 0.5
Subtotal <=10 | 275,777 76.9 203.4 12.0 2.1 114.5 1.2 | 250,661 66.6 1,403.1 6.2 15.7 15.6 0.2
10 - 12 | 9,987 2.8 35.1 2.1 9.8 25.2 7.0 | 13,296 3.5 291.2 1.3 62.0 3.0 0.6
12 - 15 | 12,706 3.5 53.7 3.2 11.8 44.7 9.8 | 16,557 4.4 446.2 2.0 76.5 4.0 0.7
Subtotal <=15 | 298,470 83.2 292.2 17.2 2.7 184.4 1.7 | 280,514 74.5 2,140.5 9.5 21.5 22.7 0.2
15 - 20 | 16,963 4.7 93.9 5.5 15.4 71.3 11.7 | 19,533 5.2 681.1 3.0 99.1 5.4 0.8
20 - 25 | 8,565 2.4 61.2 3.6 20.1 41.3 13.6 | 13,630 3.6 609.7 2.7 127.3 5.4 1.1
25 - 30 | 6,313 1.8 53.7 3.2 24.0 42.5 19.0 | 9,262 2.5 502.3 2.2 155.8 4.4 1.4
30 - 40 | 7,572 2.1 82.5 4.9 31.0 55.1 20.7 | 12,635 3.4 848.5 3.8 194.5 9.1 2.1
40 - 50 | 4,433 1.2 61.2 3.6 39.5 48.7 31.4 | 7,526 2.0 648.4 2.9 252.0 7.1 2.8
50 - 100 | 10,250 2.9 204.1 12.0 57.4 273.8 77.0 | 15,291 4.1 1,974.8 8.8 391.4 21.2 4.2
100 - 200 | 3,197 0.9 123.6 7.3 115.6 131.0 122.5 | 8,573 2.3 2,087.3 9.3 777.0 23.4 8.7
200 - 400 | 1,463 0.4 112.6 6.6 230.9 138.3 283.6 | 4,446 1.2 2,147.3 9.5 1,578.3 22.7 16.7
400 - 800 | 830 0.2 124.0 7.3 451.7 187.2 681.7 | 2,625 0.7 2,465.0 10.9 3,097.0 31.0 38.9
800 - 1600 | 404 0.1 111.6 6.6 852.7 175.5 1,340.2 | 1,303 0.3 2,327.5 10.3 5,894.4 47.9 121.2
1600 - 3200 | 124 0.0 66.7 3.9 1,736.8 100.0 2,605.7 | 673 0.2 2,419.0 10.7 11,549.6 67.5 322.1
3200 - 6400 | 80 0.0 75.4 4.4 3,551.1 110.2 5,195.1 | 327 0.1 2,381.4 10.6 21,938.4 77.2 711.2
6400 - 12800 | 51 0.0 127.3 7.5 7,688.3 196.1 11,838.9 | 66 0.0 911.5 4.0 41,141.1 26.2 1,180.9
> 12800 | 24 0.0 110.3 6.5 14,847.4 232.0 31,243.6 | 21 0.0 412.7 1.8 63,663.7 28.7 4,423.5
Total | 358,739 100.0 1,700.2 100.0 13.3 1,987.4 15.5 | 376,425 100.0 22,557.0 100.0 170.7 399.7 3.0
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 2000
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 129,793 36.1 15.4 0.9 0.3 4.3 0.1 | 75,630 21.7 68.0 0.3 2.5 0.6 0.0
1 - 2 | 41,451 11.5 20.2 1.2 1.4 8.4 0.6 | 41,054 11.8 121.7 0.5 8.2 1.2 0.1
2 - 4 | 44,985 12.5 43.2 2.5 2.7 20.7 1.3 | 47,021 13.5 273.0 1.2 16.2 3.3 0.2
4 - 6 | 26,695 7.4 43.1 2.5 4.5 24.6 2.6 | 28,635 8.2 281.1 1.3 27.5 3.7 0.4
6 - 8 | 17,932 5.0 40.7 2.4 6.3 26.1 4.0 | 20,691 5.9 284.5 1.3 38.6 3.8 0.5
8 - 10 | 13,572 3.8 39.3 2.3 8.0 27.4 5.6 | 15,867 4.6 284.1 1.3 50.3 3.2 0.6
Subtotal <=10 | 274,428 76.4 201.8 11.9 2.0 111.5 1.1 | 228,898 65.7 1,312.4 5.9 16.0 15.8 0.2
10 - 12 | 10,652 3.0 37.8 2.2 9.9 25.2 6.6 | 12,417 3.6 271.7 1.2 61.7 3.0 0.7
12 - 15 | 12,320 3.4 52.6 3.1 11.9 41.3 9.3 | 15,043 4.3 404.6 1.8 76.0 4.1 0.8
Subtotal <=15 | 297,400 82.8 292.3 17.2 2.7 178.0 1.7 | 256,358 73.6 1,988.8 8.9 21.7 22.9 0.2
15 - 20 | 16,942 4.7 93.7 5.5 15.4 75.2 12.4 | 18,637 5.3 650.9 2.9 98.7 5.8 0.9
20 - 25 | 9,356 2.6 66.9 3.9 20.0 41.6 12.5 | 12,853 3.7 578.4 2.6 127.8 4.8 1.1
25 - 30 | 6,331 1.8 54.1 3.2 24.1 42.3 18.9 | 9,079 2.6 496.8 2.2 156.1 4.3 1.3
30 - 40 | 8,041 2.2 88.4 5.2 31.1 57.3 20.2 | 12,379 3.6 836.6 3.7 194.2 9.5 2.2
40 - 50 | 4,759 1.3 65.7 3.9 39.5 54.5 32.7 | 7,134 2.0 622.8 2.8 256.1 4.8 2.0
50 - 100 | 9,609 2.7 195.8 11.5 59.2 217.1 65.7 | 14,883 4.3 1,920.2 8.6 386.3 26.1 5.3
100 - 200 | 3,648 1.0 139.8 8.2 113.5 164.6 133.6 | 7,818 2.2 1,944.3 8.7 786.4 19.8 8.0
200 - 400 | 1,510 0.4 114.0 6.7 229.3 139.8 281.1 | 4,170 1.2 2,021.9 9.1 1,579.9 20.3 15.8
400 - 800 | 871 0.2 129.4 7.6 453.6 189.4 663.9 | 2,658 0.8 2,512.7 11.2 3,133.3 30.9 38.5
800 - 1600 | 452 0.1 129.5 7.6 867.8 197.1 1,320.4 | 1,407 0.4 2,468.0 11.0 5,942.1 50.6 121.9
1600 - 3200 | 147 0.0 74.6 4.4 1,699.6 116.0 2,643.5 | 704 0.2 2,502.8 11.2 11,492.9 72.7 333.9
3200 - 6400 | 67 0.0 69.7 4.1 3,695.1 105.0 5,567.5 | 346 0.1 2,444.6 10.9 21,853.2 81.5 728.3
6400 - 12800 | 34 0.0 76.2 4.5 7,405.3 132.9 12,918.8 | 78 0.0 1,108.2 5.0 41,004.8 33.4 1,235.9
> 12800 | 21 0.0 112.3 6.6 15,091.5 228.6 30,708.3 | 13 0.0 240.0 1.1 66,635.8 16.1 4,482.0
Total | 359,188 100.0 1,702.4 100.0 13.2 1,939.3 15.1 | 348,517 100.0 22,337.0 100.0 181.7 403.4 3.3
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 1999
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 132,439 36.9 15.2 0.9 0.3 4.7 0.1 | 76,748 22.4 68.7 0.3 2.5 0.6 0.0
1 - 2 | 41,303 11.5 20.1 1.2 1.4 8.5 0.6 | 41,274 12.0 122.3 0.6 8.2 1.2 0.1
2 - 4 | 44,367 12.4 42.8 2.5 2.7 20.3 1.3 | 46,644 13.6 270.1 1.2 16.2 3.3 0.2
4 - 6 | 25,214 7.0 40.5 2.4 4.5 23.3 2.6 | 28,494 8.3 276.9 1.3 27.3 4.0 0.4
6 - 8 | 18,097 5.0 40.8 2.4 6.3 26.2 4.0 | 20,095 5.9 275.7 1.3 38.6 3.7 0.5
8 - 10 | 12,524 3.5 36.0 2.1 8.0 25.0 5.5 | 15,168 4.4 266.4 1.2 49.9 3.4 0.6
Subtotal <=10 | 273,944 76.4 195.5 11.4 2.0 107.9 1.1 | 228,423 66.6 1,280.0 5.9 15.7 16.4 0.2
10 - 12 | 10,575 2.9 37.6 2.2 9.9 25.6 6.7 | 11,906 3.5 259.8 1.2 61.4 3.0 0.7
12 - 15 | 12,464 3.5 53.5 3.1 11.9 41.2 9.2 | 14,249 4.2 381.0 1.7 75.6 4.1 0.8
Subtotal <=15 | 296,983 82.8 286.6 16.7 2.7 174.7 1.6 | 254,578 74.2 1,920.8 8.8 21.2 23.5 0.3
15 - 20 | 16,295 4.5 90.2 5.3 15.4 76.3 13.0 | 17,485 5.1 611.3 2.8 98.8 5.6 0.9
20 - 25 | 10,077 2.8 72.3 4.2 20.0 51.6 14.2 | 12,171 3.5 547.5 2.5 128.1 4.3 1.0
25 - 30 | 6,094 1.7 54.0 3.1 24.8 34.6 15.9 | 8,917 2.6 489.0 2.2 156.4 4.1 1.3
30 - 40 | 8,299 2.3 90.0 5.2 30.4 70.3 23.7 | 11,678 3.4 810.2 3.7 198.3 6.2 1.5
40 - 50 | 4,809 1.3 67.9 4.0 39.7 53.7 31.4 | 7,199 2.1 635.6 2.9 255.1 5.2 2.1
50 - 100 | 9,261 2.6 191.9 11.2 59.1 220.2 67.8 | 14,701 4.3 1,914.2 8.8 384.9 23.8 4.8
100 - 200 | 3,835 1.1 148.5 8.7 111.5 167.7 125.8 | 7,584 2.2 1,907.3 8.7 782.1 20.5 8.4
200 - 400 | 1,439 0.4 112.7 6.6 231.4 133.7 274.7 | 3,905 1.1 1,925.4 8.8 1,569.0 20.6 16.8
400 - 800 | 843 0.2 127.9 7.5 453.4 185.5 657.4 | 2,477 0.7 2,388.4 11.0 3,132.8 30.0 39.3
800 - 1600 | 485 0.1 138.8 8.1 873.0 211.5 1,330.0 | 1,347 0.4 2,496.0 11.4 5,977.6 47.3 113.2
1600 - 3200 | 176 0.0 94.9 5.5 1,679.7 156.2 2,766.0 | 717 0.2 2,535.5 11.6 11,219.2 76.1 336.8
3200 - 6400 | 60 0.0 65.1 3.8 3,545.2 104.3 5,680.6 | 330 0.1 2,342.1 10.7 21,323.0 83.4 759.0
6400 - 12800 | 35 0.0 82.5 4.8 7,343.1 148.7 13,232.1 | 76 0.0 1,065.1 4.9 40,994.5 31.5 1,212.3
> 12800 | 19 0.0 92.7 5.4 15,372.1 196.4 32,570.3 | 9 0.0 222.2 1.0 76,031.7 10.1 3,442.6
Total | 358,710 100.0 1,715.9 100.0 13.4 1,985.4 15.5 | 343,174 100.0 21,810.5 100.0 180.2 392.1 3.2
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 1998
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 137,720 36.4 15.8 0.9 0.3 4.9 0.1 | 75,127 22.2 67.6 0.3 2.5 0.6 0.0
1 - 2 | 44,369 11.7 21.6 1.2 1.4 8.8 0.6 | 41,203 12.2 122.3 0.6 8.2 1.2 0.1
2 - 4 | 46,017 12.2 44.1 2.4 2.7 21.2 1.3 | 45,950 13.6 266.7 1.2 16.2 3.3 0.2
4 - 6 | 26,532 7.0 42.6 2.4 4.5 23.3 2.5 | 27,642 8.2 269.8 1.2 27.3 3.8 0.4
6 - 8 | 18,651 4.9 42.1 2.3 6.3 27.5 4.1 | 19,605 5.8 268.2 1.2 38.4 3.9 0.6
8 - 10 | 13,479 3.6 38.5 2.1 8.0 26.1 5.4 | 14,764 4.4 260.8 1.2 49.7 3.5 0.7
Subtotal <=10 | 286,768 75.8 204.8 11.3 2.0 111.7 1.1 | 224,291 66.3 1,255.4 5.7 15.7 16.4 0.2
10 - 12 | 10,876 2.9 38.5 2.1 9.9 24.8 6.4 | 11,801 3.5 256.5 1.2 61.1 3.2 0.8
12 - 15 | 12,156 3.2 52.8 2.9 12.1 34.7 8.0 | 14,119 4.2 377.6 1.7 75.4 4.3 0.9
Subtotal <=15 | 309,800 81.9 296.1 16.4 2.7 171.1 1.6 | 250,211 73.9 1,889.5 8.5 21.1 24.0 0.3
15 - 20 | 16,220 4.3 89.1 4.9 15.3 74.1 12.7 | 16,711 4.9 584.2 2.6 98.5 5.5 0.9
20 - 25 | 12,853 3.4 91.4 5.1 19.8 70.2 15.2 | 12,050 3.6 543.8 2.5 127.9 4.4 1.0
25 - 30 | 7,996 2.1 70.2 3.9 24.5 52.9 18.5 | 8,736 2.6 482.7 2.2 156.6 4.0 1.3
30 - 40 | 9,216 2.4 100.1 5.5 30.5 76.1 23.2 | 11,647 3.4 807.8 3.6 197.6 6.7 1.6
40 - 50 | 4,848 1.3 68.7 3.8 40.2 50.8 29.7 | 7,243 2.1 640.8 2.9 255.0 5.4 2.1
50 - 100 | 9,659 2.6 200.5 11.1 59.2 230.5 68.1 | 15,074 4.5 1,962.3 8.9 383.6 24.9 4.9
100 - 200 | 4,153 1.1 167.7 9.3 116.8 182.8 127.3 | 7,698 2.3 1,952.8 8.8 781.0 23.0 9.2
200 - 400 | 1,664 0.4 130.2 7.2 233.4 144.8 259.6 | 4,167 1.2 2,059.8 9.3 1,568.0 23.6 17.9
400 - 800 | 887 0.2 137.6 7.6 458.2 177.6 591.4 | 2,412 0.7 2,377.3 10.7 3,157.9 28.7 38.2
800 - 1600 | 508 0.1 149.0 8.2 878.9 227.1 1,339.7 | 1,398 0.4 2,598.9 11.7 5,921.1 52.0 118.4
1600 - 3200 | 205 0.1 110.1 6.1 1,696.5 171.5 2,641.4 | 738 0.2 2,599.2 11.7 11,154.7 79.4 340.6
3200 - 6400 | 54 0.0 57.9 3.2 3,517.8 89.4 5,431.6 | 353 0.1 2,377.5 10.7 20,918.1 94.1 828.0
6400 - 12800 | 38 0.0 84.7 4.7 7,023.1 138.2 11,465.4 | 88 0.0 1,181.4 5.3 40,562.0 35.4 1,213.7
> 12800 | 13 0.0 54.2 3.0 14,353.5 119.6 31,637.8 | 5 0.0 110.0 0.5 67,054.7 7.8 4,753.7
Total | 378,114 100.0 1,807.7 100.0 13.4 1,976.8 14.7 | 338,531 100.0 22,168.1 100.0 185.1 418.8 3.5
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 1997
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 138,106 35.4 16.6 0.9 0.3 4.7 0.1 | 71,953 21.9 64.2 0.3 2.5 0.6 0.0
1 - 2 | 46,193 11.8 22.6 1.2 1.4 9.2 0.6 | 39,359 12.0 116.8 0.5 8.3 1.2 0.1
2 - 4 | 48,668 12.5 47.1 2.5 2.7 21.6 1.2 | 44,668 13.6 258.8 1.2 16.2 3.2 0.2
4 - 6 | 28,429 7.3 45.7 2.4 4.5 26.6 2.6 | 26,699 8.1 260.4 1.2 27.3 3.8 0.4
6 - 8 | 19,503 5.0 43.9 2.4 6.3 28.9 4.1 | 18,978 5.8 258.2 1.2 38.3 3.9 0.6
8 - 10 | 14,061 3.6 40.5 2.2 8.0 27.6 5.5 | 14,577 4.4 256.8 1.1 49.5 3.7 0.7
Subtotal <=10 | 294,960 75.6 216.4 11.6 2.1 118.8 1.1 | 216,234 65.7 1,215.2 5.4 15.7 16.3 0.2
10 - 12 | 10,696 2.7 37.7 2.0 9.9 24.9 6.5 | 11,322 3.4 242.9 1.1 60.6 3.5 0.9
12 - 15 | 13,105 3.4 56.4 3.0 12.0 38.6 8.2 | 13,477 4.1 358.3 1.6 75.2 4.3 0.9
Subtotal <=15 | 318,761 81.7 310.6 16.6 2.7 182.2 1.6 | 241,033 73.3 1,816.3 8.1 21.1 24.1 0.3
15 - 20 | 14,929 3.8 82.9 4.4 15.5 56.9 10.7 | 15,802 4.8 549.2 2.5 98.3 5.4 1.0
20 - 25 | 14,392 3.7 101.9 5.5 19.8 80.1 15.5 | 11,472 3.5 515.9 2.3 127.4 4.7 1.2
25 - 30 | 9,068 2.3 79.1 4.2 24.5 57.3 17.7 | 8,644 2.6 476.2 2.1 156.8 3.8 1.3
30 - 40 | 9,334 2.4 100.2 5.4 30.5 76.8 23.4 | 11,838 3.6 815.7 3.6 197.3 7.0 1.7
40 - 50 | 4,705 1.2 65.2 3.5 39.9 46.4 28.4 | 7,586 2.3 660.4 2.9 250.7 8.0 3.0
50 - 100 | 10,875 2.8 221.0 11.8 58.7 262.4 69.7 | 15,016 4.6 1,954.8 8.7 385.6 22.5 4.4
100 - 200 | 4,362 1.1 173.9 9.3 118.1 181.5 123.3 | 7,907 2.4 1,982.5 8.8 772.2 24.3 9.5
200 - 400 | 1,683 0.4 129.4 6.9 236.4 136.6 249.6 | 4,499 1.4 2,200.6 9.8 1,553.8 25.9 18.3
400 - 800 | 1,020 0.3 152.9 8.2 461.4 201.4 607.8 | 2,434 0.7 2,360.1 10.5 3,128.3 28.9 38.3
800 - 1600 | 558 0.1 157.3 8.4 876.6 242.6 1,352.1 | 1,491 0.5 2,719.9 12.1 5,963.0 51.8 113.5
1600 - 3200 | 223 0.1 123.3 6.6 1,768.9 178.9 2,566.3 | 761 0.2 2,725.3 12.2 11,242.6 87.9 362.7
3200 - 6400 | 75 0.0 71.8 3.8 3,264.5 129.5 5,892.4 | 314 0.1 2,206.6 9.8 21,025.9 88.9 847.5
6400 - 12800 | 31 0.0 76.2 4.1 7,520.3 102.5 10,111.9 | 90 0.0 1,185.0 5.3 38,981.4 46.3 1,524.3
> 12800 | 6 0.0 22.7 1.2 13,285.1 34.1 19,986.5 | 12 0.0 246.5 1.1 72,308.7 9.5 2,795.5
Total | 390,022 100.0 1,868.2 100.0 13.5 1,969.2 14.2 | 328,899 100.0 22,414.9 100.0 193.1 439.0 3.8
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 1996
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 137,321 35.3 16.7 0.9 0.3 4.7 0.1 | 69,104 22.1 61.9 0.3 2.5 0.6 0.0
1 - 2 | 46,056 11.8 22.6 1.2 1.4 9.3 0.6 | 37,158 11.9 110.2 0.5 8.2 1.2 0.1
2 - 4 | 48,923 12.6 47.2 2.5 2.7 22.2 1.3 | 41,481 13.2 240.5 1.1 16.1 3.1 0.2
4 - 6 | 28,083 7.2 45.3 2.4 4.5 26.9 2.7 | 24,419 7.8 238.0 1.1 27.2 3.6 0.4
6 - 8 | 18,832 4.8 42.4 2.2 6.3 27.7 4.1 | 17,728 5.7 241.6 1.1 38.0 3.9 0.6
8 - 10 | 14,627 3.8 42.6 2.3 8.1 27.2 5.2 | 13,443 4.3 237.7 1.1 49.4 3.5 0.7
Subtotal <=10 | 293,842 75.5 216.8 11.5 2.1 117.9 1.1 | 203,333 64.9 1,129.9 5.1 15.5 15.9 0.2
10 - 12 | 11,269 2.9 39.2 2.1 9.7 30.5 7.5 | 11,129 3.6 240.9 1.1 60.5 3.5 0.9
12 - 15 | 12,363 3.2 53.5 2.8 12.1 34.6 7.8 | 13,169 4.2 351.0 1.6 74.6 4.6 1.0
Subtotal <=15 | 317,474 81.6 309.4 16.4 2.7 183.1 1.6 | 227,631 72.7 1,721.7 7.8 21.1 24.0 0.3
15 - 20 | 15,111 3.9 84.3 4.5 15.6 57.4 10.6 | 15,113 4.8 522.1 2.4 97.3 5.8 1.1
20 - 25 | 13,346 3.4 96.3 5.1 20.1 68.8 14.3 | 11,026 3.5 496.0 2.2 126.9 4.7 1.2
25 - 30 | 9,117 2.3 78.8 4.2 24.1 59.6 18.3 | 8,369 2.7 460.7 2.1 155.4 4.3 1.5
30 - 40 | 10,295 2.6 111.7 5.9 30.5 81.5 22.2 | 11,330 3.6 784.0 3.5 197.4 6.7 1.7
40 - 50 | 5,184 1.3 71.8 3.8 39.5 57.2 31.5 | 7,640 2.4 663.4 3.0 249.3 8.8 3.3
50 - 100 | 10,407 2.7 218.2 11.6 60.1 248.9 68.6 | 14,955 4.8 1,981.5 8.9 387.2 22.4 4.4
100 - 200 | 4,446 1.1 170.2 9.0 112.4 180.7 119.3 | 7,749 2.5 1,964.5 8.9 776.5 23.9 9.5
200 - 400 | 1,831 0.5 137.2 7.3 225.1 178.1 292.2 | 4,343 1.4 2,168.4 9.8 1,555.4 25.7 18.4
400 - 800 | 962 0.2 146.1 7.7 460.2 188.1 592.5 | 2,495 0.8 2,459.2 11.1 3,130.0 29.9 38.1
800 - 1600 | 617 0.2 171.5 9.1 859.1 274.8 1,375.9 | 1,451 0.5 2,675.8 12.1 5,943.0 49.3 109.4
1600 - 3200 | 210 0.1 113.2 6.0 1,674.1 190.2 2,812.3 | 715 0.2 2,589.2 11.7 11,372.3 82.8 363.6
3200 - 6400 | 82 0.0 91.3 4.8 3,450.6 146.1 5,521.5 | 365 0.1 2,497.5 11.3 20,974.8 103.7 870.9
6400 - 12800 | 34 0.0 75.1 4.0 7,234.0 111.6 10,755.1 | 80 0.0 1,002.5 4.5 38,479.0 44.3 1,698.6
> 12800 | 4 0.0 11.0 0.6 11,286.3 18.7 19,105.6 | 7 0.0 209.3 0.9 81,684.1 7.6 2,974.0
Total | 389,120 100.0 1,886.1 100.0 13.6 2,044.7 14.7 | 313,269 100.0 22,195.8 100.0 199.8 444.0 4.0
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10

 


United States Total 1995
 
Distribution of Wells by Production Rate Bracket
 

  Oil Wells   Gas Wells
Prod.
Rate
Bracket
(BOE/Day)		 |
|
|
|		 # of
Oil
Wells		 % of
Oil
Wells		 Annual
Oil
Prod.
(MMbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(Bcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(Bcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(MMbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 127,821 33.3 16.1 0.8 0.4 4.6 0.1 | 64,026 21.4 57.8 0.3 2.5 0.6 0.0
1 - 2 | 48,542 12.6 23.7 1.2 1.4 9.3 0.5 | 35,420 11.8 103.8 0.5 8.2 1.2 0.1
2 - 4 | 48,431 12.6 46.0 2.4 2.7 22.3 1.3 | 39,720 13.3 229.0 1.1 16.1 3.1 0.2
4 - 6 | 28,115 7.3 45.0 2.3 4.5 26.9 2.7 | 23,756 7.9 230.6 1.1 27.2 3.5 0.4
6 - 8 | 18,521 4.8 41.5 2.2 6.3 26.8 4.1 | 16,976 5.7 229.6 1.1 38.1 3.7 0.6
8 - 10 | 15,167 3.9 43.7 2.3 8.1 28.8 5.3 | 13,101 4.4 228.3 1.1 49.0 3.7 0.8
Subtotal <=10 | 286,597 74.6 216.2 11.3 2.1 118.7 1.2 | 192,999 64.4 1,079.0 5.0 15.7 15.6 0.2
10 - 12 | 12,004 3.1 42.0 2.2 9.8 29.8 6.9 | 10,430 3.5 223.7 1.0 60.5 3.3 0.9
12 - 15 | 13,141 3.4 56.7 3.0 12.1 39.4 8.4 | 13,008 4.3 343.4 1.6 74.3 4.8 1.0
Subtotal <=15 | 311,742 81.1 314.9 16.4 2.8 187.9 1.7 | 216,437 72.2 1,646.1 7.7 21.3 23.7 0.3
15 - 20 | 14,790 3.8 82.1 4.3 15.6 54.4 10.3 | 15,664 5.2 534.3 2.5 96.0 7.0 1.3
20 - 25 | 12,681 3.3 91.0 4.7 20.0 69.4 15.3 | 10,571 3.5 472.7 2.2 126.4 4.9 1.3
25 - 30 | 9,686 2.5 84.4 4.4 24.4 58.4 16.9 | 7,933 2.6 432.7 2.0 154.7 4.5 1.6
30 - 40 | 10,472 2.7 114.0 5.9 30.6 80.7 21.7 | 10,753 3.6 742.3 3.5 197.0 6.7 1.8
40 - 50 | 5,303 1.4 72.3 3.8 38.7 64.0 34.3 | 7,074 2.4 627.6 2.9 255.0 5.3 2.1
50 - 100 | 11,430 3.0 237.2 12.4 59.2 269.6 67.3 | 14,426 4.8 1,937.3 9.1 391.4 19.3 3.9
100 - 200 | 4,505 1.2 164.3 8.6 106.3 222.1 143.8 | 7,643 2.6 1,985.6 9.3 781.5 22.6 8.9
200 - 400 | 1,886 0.5 141.6 7.4 225.0 173.2 275.2 | 4,248 1.4 2,159.4 10.1 1,557.3 26.2 18.9
400 - 800 | 952 0.2 147.1 7.7 467.4 187.6 595.9 | 2,418 0.8 2,414.6 11.3 3,111.3 29.6 38.1
800 - 1600 | 609 0.2 180.2 9.4 902.2 259.8 1,301.0 | 1,383 0.5 2,571.7 12.0 5,944.3 47.2 109.1
1600 - 3200 | 227 0.1 117.5 6.1 1,670.4 215.1 3,059.3 | 682 0.2 2,436.8 11.4 11,305.9 79.8 370.2
3200 - 6400 | 73 0.0 85.0 4.4 3,783.4 111.5 4,965.0 | 327 0.1 2,278.6 10.6 20,779.9 109.9 1,002.6
6400 - 12800 | 38 0.0 89.3 4.6 6,940.8 119.9 9,314.9 | 74 0.0 959.4 4.5 37,716.2 47.8 1,879.9
> 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 6 0.0 198.4 0.9 90,614.3 7.3 3,330.4
Total | 384,394 100.0 1,920.9 100.0 14.0 2,073.5 15.2 | 299,639 100.0 21,397.4 100.0 202.0 441.9 4.2
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) This U.S. total does not include pre-2003 oil wells from NY, post-2004 wells from PA, 2009 wells from KY, most post-2005 TN wells, and all wells from IL and IN.
3) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
4) To be consistent between states a GOR of 6,000 (cf/bbl) for each years production was used to classify wells.
     If the GOR was less than 6,000 (cf/bbl) the well was classed an oil well, greater than or equal 6,000 (cf/bbl) were gas wells.
5) To determine production rate brackets for the first and last year of a wells life the annual production was divided
     by the number of days in the productive months. For other years the annual production was divided by 365 or 366 days.
6) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            29DEC10