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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 | 125,933 35.4 15.2 1.0 0.3 4.6 0.1 | 83,132 19.9 69.3 0.3 2.4 0.6 0.0
1 - 2 | 42,221 11.9 20.5 1.3 1.4 8.8 0.6 | 42,114 10.1 122.4 0.6 8.3 1.2 0.1
2 - 4 | 46,247 13.0 43.9 2.8 2.7 22.8 1.4 | 55,643 13.3 323.0 1.5 16.5 3.5 0.2
4 - 6 | 27,311 7.7 43.4 2.8 4.5 27.3 2.8 | 38,687 9.2 381.4 1.8 27.9 4.0 0.3
6 - 8 | 19,112 5.4 42.6 2.7 6.2 30.0 4.4 | 29,007 6.9 402.3 1.9 39.2 4.2 0.4
8 - 10 | 14,538 4.1 40.5 2.6 7.8 34.3 6.6 | 22,526 5.4 403.7 1.9 50.8 3.8 0.5
Subtotal <=10 | 275,362 77.4 206.1 13.3 2.1 127.9 1.3 | 271,109 64.7 1,701.9 7.9 18.0 17.5 0.2
10 - 12 | 12,987 3.7 42.8 2.8 9.2 45.8 9.9 | 17,932 4.3 394.5 1.8 62.1 3.8 0.6
12 - 15 | 13,871 3.9 59.2 3.8 11.9 42.6 8.6 | 20,299 4.8 545.3 2.5 76.4 5.0 0.7
Subtotal <=15 | 302,220 85.0 308.1 19.9 2.9 216.3 2.0 | 309,340 73.9 2,641.7 12.3 24.4 26.3 0.2
15 - 20 | 13,589 3.8 74.5 4.8 15.5 53.6 11.1 | 22,948 5.5 786.3 3.7 97.8 8.5 1.1
20 - 25 | 8,670 2.4 61.1 3.9 20.0 44.1 14.5 | 14,741 3.5 651.4 3.0 127.1 5.9 1.1
25 - 30 | 5,710 1.6 48.8 3.1 24.4 35.2 17.6 | 10,403 2.5 560.2 2.6 156.0 4.8 1.3
30 - 40 | 7,352 2.1 76.8 5.0 30.2 65.2 25.6 | 13,526 3.2 916.2 4.3 197.8 7.5 1.6
40 - 50 | 4,799 1.3 62.9 4.1 38.1 61.0 37.0 | 8,660 2.1 743.5 3.5 253.8 7.0 2.4
50 - 100 | 7,703 2.2 154.2 9.9 59.0 181.7 69.5 | 19,038 4.5 2,479.5 11.6 399.5 20.4 3.3
100 - 200 | 3,009 0.8 114.5 7.4 114.0 123.5 123.0 | 11,517 2.8 2,757.4 12.9 793.8 21.9 6.3
200 - 400 | 1,311 0.4 99.7 6.4 233.2 119.4 279.3 | 5,173 1.2 2,321.4 10.8 1,546.9 21.2 14.1
400 - 800 | 606 0.2 89.8 5.8 448.6 109.6 547.7 | 1,852 0.4 1,568.8 7.3 3,036.0 23.5 45.6
800 - 1600 | 253 0.1 73.9 4.8 885.8 113.0 1,355.2 | 814 0.2 1,436.1 6.7 6,008.4 27.8 116.2
1600 - 3200 | 160 0.0 97.7 6.3 1,891.0 136.4 2,641.7 | 450 0.1 1,739.1 8.1 11,932.8 42.0 288.5
3200 - 6400 | 95 0.0 113.0 7.3 3,649.4 148.8 4,807.1 | 233 0.1 1,815.5 8.5 23,381.3 43.9 564.9
6400 - 12800 | 47 0.0 110.3 7.1 7,007.9 150.4 9,557.7 | 57 0.0 846.5 3.9 43,410.2 18.1 926.5
> 12800 | 13 0.0 66.6 4.3 14,026.4 94.7 19,955.4 | 6 0.0 174.0 0.8 81,672.0 6.3 2,954.4
Total | 355,537 100.0 1,551.7 100.0 12.4 1,652.9 13.2 | 418,758 100.0 21,437.7 100.0 148.1 285.0 2.0
 
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-2001 wells from PA, 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).
 
                                                                                                                            21JUL08

 



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 | 125,937 35.9 15.1 1.0 0.3 4.5 0.1 | 80,691 20.2 68.4 0.3 2.4 0.6 0.0
1 - 2 | 41,379 11.8 20.1 1.3 1.4 8.9 0.6 | 40,925 10.2 120.5 0.6 8.3 1.3 0.1
2 - 4 | 44,426 12.7 42.5 2.7 2.7 21.5 1.4 | 52,480 13.1 305.5 1.4 16.4 3.5 0.2
4 - 6 | 25,537 7.3 41.0 2.6 4.5 24.6 2.7 | 36,567 9.1 360.3 1.7 27.9 3.9 0.3
6 - 8 | 19,503 5.6 43.8 2.8 6.2 30.5 4.4 | 26,906 6.7 374.9 1.8 39.3 3.9 0.4
8 - 10 | 14,208 4.1 40.1 2.6 7.9 33.8 6.6 | 21,204 5.3 381.6 1.8 50.8 3.6 0.5
Subtotal <=10 | 270,990 77.3 202.6 12.9 2.1 123.9 1.3 | 258,773 64.7 1,611.3 7.5 17.6 16.8 0.2
10 - 12 | 11,688 3.3 39.1 2.5 9.3 43.4 10.3 | 17,363 4.3 378.3 1.8 62.1 3.7 0.6
12 - 15 | 13,444 3.8 58.5 3.7 12.2 38.8 8.1 | 19,367 4.8 519.6 2.4 76.4 4.7 0.7
Subtotal <=15 | 296,122 84.5 300.1 19.1 2.8 206.1 1.9 | 295,503 73.9 2,509.2 11.7 24.0 25.3 0.2
15 - 20 | 13,973 4.0 76.2 4.9 15.4 56.1 11.3 | 22,228 5.6 766.0 3.6 98.3 7.1 0.9
20 - 25 | 8,593 2.5 61.1 3.9 20.1 41.5 13.7 | 14,542 3.6 638.3 3.0 126.1 6.4 1.3
25 - 30 | 5,891 1.7 50.4 3.2 24.4 37.4 18.1 | 9,878 2.5 535.2 2.5 156.1 4.6 1.4
30 - 40 | 7,175 2.0 75.8 4.8 30.4 57.2 22.9 | 13,076 3.3 886.2 4.1 197.4 7.3 1.6
40 - 50 | 5,092 1.5 67.7 4.3 38.3 63.3 35.9 | 8,123 2.0 702.7 3.3 256.0 5.5 2.0
50 - 100 | 8,036 2.3 160.0 10.2 58.6 182.5 66.9 | 17,412 4.4 2,269.3 10.6 397.7 19.4 3.4
100 - 200 | 2,913 0.8 113.9 7.3 117.1 116.8 120.0 | 10,488 2.6 2,528.2 11.8 792.7 20.4 6.4
200 - 400 | 1,375 0.4 104.4 6.6 230.1 125.6 276.8 | 5,023 1.3 2,326.7 10.9 1,559.9 21.9 14.7
400 - 800 | 636 0.2 94.9 6.0 444.8 135.9 636.9 | 1,986 0.5 1,730.7 8.1 3,012.9 25.1 43.7
800 - 1600 | 274 0.1 79.8 5.1 877.0 121.5 1,334.8 | 817 0.2 1,447.0 6.8 6,067.3 26.9 112.6
1600 - 3200 | 145 0.0 84.3 5.4 1,842.4 120.5 2,633.5 | 449 0.1 1,750.7 8.2 11,763.7 45.6 306.6
3200 - 6400 | 98 0.0 114.9 7.3 3,562.3 171.5 5,317.1 | 250 0.1 1,886.9 8.8 22,244.8 50.2 591.5
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 44,248.9 26.3 1,007.6
> 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 | 350,384 100.0 1,570.1 100.0 12.6 1,713.6 13.8 | 399,860 100.0 21,387.0 100.0 153.4 303.1 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-2001 wells from PA, 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).
 
                                                                                                                            21JUL08

 



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 | 125,773 36.4 14.9 0.9 0.3 4.4 0.1 | 79,048 20.4 67.6 0.3 2.4 0.6 0.0
1 - 2 | 40,398 11.7 19.7 1.2 1.4 8.8 0.6 | 39,820 10.3 116.9 0.5 8.2 1.3 0.1
2 - 4 | 44,819 13.0 43.2 2.7 2.7 21.6 1.3 | 50,143 13.0 293.1 1.3 16.3 3.5 0.2
4 - 6 | 25,402 7.4 41.2 2.6 4.5 23.8 2.6 | 33,899 8.8 336.2 1.5 27.8 3.8 0.3
6 - 8 | 17,490 5.1 39.3 2.4 6.2 27.6 4.4 | 25,398 6.6 353.7 1.6 39.1 4.0 0.4
8 - 10 | 13,637 4.0 39.3 2.4 8.0 27.4 5.6 | 19,868 5.1 358.9 1.6 50.7 3.6 0.5
Subtotal <=10 | 267,519 77.5 197.7 12.3 2.1 113.6 1.2 | 248,176 64.1 1,526.3 6.9 17.3 16.7 0.2
10 - 12 | 10,805 3.1 37.1 2.3 9.5 32.6 8.4 | 16,054 4.1 353.8 1.6 62.1 3.6 0.6
12 - 15 | 14,082 4.1 59.4 3.7 11.7 53.5 10.5 | 18,936 4.9 512.9 2.3 76.4 4.6 0.7
Subtotal <=15 | 292,406 84.7 294.1 18.2 2.8 199.7 1.9 | 283,166 73.2 2,393.0 10.8 23.8 24.9 0.2
15 - 20 | 13,603 3.9 75.3 4.7 15.4 50.8 10.4 | 21,392 5.5 746.4 3.4 98.8 6.4 0.8
20 - 25 | 8,527 2.5 61.0 3.8 20.1 40.9 13.5 | 14,636 3.8 645.0 2.9 125.4 7.3 1.4
25 - 30 | 5,499 1.6 47.0 2.9 24.3 35.1 18.1 | 9,762 2.5 529.1 2.4 155.4 4.9 1.4
30 - 40 | 7,485 2.2 79.9 5.0 30.5 61.1 23.3 | 12,749 3.3 867.1 3.9 197.5 7.0 1.6
40 - 50 | 3,957 1.1 54.0 3.3 39.6 40.3 29.5 | 8,158 2.1 696.2 3.1 250.2 7.7 2.8
50 - 100 | 8,332 2.4 168.1 10.4 58.9 179.2 62.8 | 18,377 4.7 2,304.9 10.4 376.5 41.0 6.7
100 - 200 | 2,633 0.8 103.3 6.4 118.3 101.9 116.7 | 9,635 2.5 2,360.3 10.6 795.0 19.3 6.5
200 - 400 | 1,415 0.4 108.5 6.7 232.1 130.0 278.0 | 5,126 1.3 2,385.0 10.8 1,513.1 33.1 21.0
400 - 800 | 726 0.2 105.9 6.6 442.7 148.9 622.6 | 2,218 0.6 1,970.4 8.9 3,016.0 29.7 45.5
800 - 1600 | 307 0.1 84.8 5.3 865.4 124.9 1,274.4 | 962 0.2 1,693.8 7.6 6,002.8 31.6 112.2
1600 - 3200 | 162 0.0 91.5 5.7 1,829.6 132.8 2,654.5 | 491 0.1 1,856.3 8.4 11,729.4 49.6 313.6
3200 - 6400 | 95 0.0 114.0 7.1 3,696.7 183.4 5,946.9 | 299 0.1 2,133.5 9.6 21,641.5 59.6 605.0
6400 - 12800 | 62 0.0 143.4 8.9 7,424.1 213.2 11,038.9 | 93 0.0 1,377.0 6.2 44,217.1 34.7 1,114.8
> 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 | 345,229 100.0 1,612.8 100.0 13.1 1,798.1 14.6 | 387,070 100.0 22,163.7 100.0 163.2 359.7 2.6
 
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-2001 wells from PA, 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&n