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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 Federal base (14.73 psia).
 
                                                                                                                            21JUL08

 


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 | 124,749 36.0 14.5 0.9 0.3 4.3 0.1 | 76,418 20.8 65.8 0.3 2.4 0.6 0.0
1 - 2 | 40,449 11.7 19.7 1.2 1.4 9.0 0.6 | 37,498 10.2 110.6 0.5 8.2 1.2 0.1
2 - 4 | 44,744 12.9 43.0 2.5 2.7 21.5 1.3 | 47,360 12.9 276.7 1.3 16.4 3.3 0.2
4 - 6 | 25,534 7.4 41.1 2.4 4.5 24.8 2.7 | 31,779 8.6 314.7 1.4 27.7 3.7 0.3
6 - 8 | 17,234 5.0 38.7 2.3 6.2 26.5 4.3 | 23,590 6.4 328.6 1.5 39.1 3.7 0.4
8 - 10 | 14,101 4.1 40.4 2.4 8.0 28.5 5.6 | 18,971 5.2 342.1 1.6 50.7 3.6 0.5
Subtotal <=10 | 266,811 77.0 197.5 11.6 2.1 114.5 1.2 | 235,616 64.1 1,438.5 6.5 17.2 16.1 0.2
10 - 12 | 10,625 3.1 36.7 2.2 9.6 30.5 8.0 | 15,000 4.1 329.5 1.5 61.8 3.5 0.7
12 - 15 | 12,710 3.7 53.4 3.1 11.7 48.9 10.7 | 17,756 4.8 481.6 2.2 76.5 4.3 0.7
Subtotal <=15 | 290,146 83.7 287.6 16.9 2.8 193.9 1.9 | 268,372 73.0 2,249.6 10.2 23.6 23.9 0.3
15 - 20 | 14,902 4.3 82.6 4.8 15.5 55.6 10.4 | 20,931 5.7 730.9 3.3 98.8 6.2 0.8
20 - 25 | 8,806 2.5 62.7 3.7 20.0 42.7 13.6 | 14,145 3.8 628.1 2.9 126.4 6.6 1.3
25 - 30 | 5,343 1.5 46.5 2.7 24.6 29.7 15.8 | 9,837 2.7 528.9 2.4 154.2 5.6 1.6
30 - 40 | 7,820 2.3 83.4 4.9 30.5 64.8 23.7 | 12,677 3.4 856.2 3.9 195.6 8.5 1.9
40 - 50 | 4,383 1.3 58.7 3.4 38.8 52.9 35.0 | 7,586 2.1 655.8 3.0 254.5 5.7 2.2
50 - 100 | 9,201 2.7 181.7 10.7 57.1 230.7 72.5 | 16,453 4.5 2,111.6 9.6 387.7 27.4 5.0
100 - 200 | 3,262 0.9 122.2 7.2 111.1 149.6 135.9 | 8,778 2.4 2,163.6 9.8 792.8 18.6 6.8
200 - 400 | 1,397 0.4 110.3 6.5 233.5 128.8 272.7 | 4,690 1.3 2,241.6 10.2 1,575.5 21.0 14.7
400 - 800 | 708 0.2 104.7 6.1 440.4 155.9 655.3 | 2,246 0.6 2,043.2 9.3 3,033.0 29.6 43.9
800 - 1600 | 352 0.1 100.6 5.9 876.0 152.2 1,325.2 | 1,080 0.3 1,889.7 8.6 5,890.1 40.4 125.9
1600 - 3200 | 142 0.0 81.2 4.8 1,762.2 126.0 2,733.3 | 590 0.2 2,179.3 9.9 11,784.5 58.9 318.7
3200 - 6400 | 102 0.0 115.9 6.8 3,691.5 156.0 4,968.4 | 303 0.1 2,294.0 10.4 22,616.6 67.4 664.4
6400 - 12800 | 69 0.0 159.5 9.4 6,904.3 288.7 12,499.9 | 74 0.0 1,087.7 4.9 42,919.6 23.2 916.1
> 12800 | 24 0.0 106.2 6.2 13,478.2 173.2 21,984.8 | 11 0.0 331.1 1.5 86,262.4 6.6 1,714.5
Total | 346,657 100.0 1,703.8 100.0 13.8 2,000.8 16.2 | 367,773 100.0 21,991.2 100.0 170.3 349.6 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-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 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 | 127,257 36.3 14.9 0.9 0.3 4.4 0.1 | 73,118 20.7 63.5 0.3 2.5 0.6 0.0
1 - 2 | 40,082 11.4 19.4 1.1 1.4 8.9 0.6 | 37,049 10.5 109.1 0.5 8.2 1.2 0.1
2 - 4 | 44,643 12.7 43.0 2.5 2.7 21.3 1.3 | 45,448 12.9 263.7 1.2 16.2 3.3 0.2
4 - 6 | 25,931 7.4 41.7 2.4 4.5 25.1 2.7 | 30,344 8.6 297.1 1.4 27.6 3.7 0.3
6 - 8 | 17,775 5.1 40.0 2.3 6.2 27.8 4.3 | 22,311 6.3 308.9 1.4 39.0 3.6 0.5
8 - 10 | 13,941 4.0 40.4 2.4 8.0 28.1 5.6 | 17,382 4.9 311.0 1.4 50.4 3.4 0.6
Subtotal <=10 | 269,629 76.9 199.3 11.6 2.1 115.6 1.2 | 225,652 64.0 1,353.2 6.2 16.9 15.9 0.2
10 - 12 | 10,201 2.9 35.5 2.1 9.7 28.2 7.7 | 14,252 4.0 314.0 1.4 62.0 3.2 0.6
12 - 15 | 12,079 3.4 50.7 3.0 11.7 44.8 10.3 | 16,657 4.7 451.8 2.1 76.3 4.2 0.7
Subtotal <=15 | 291,909 83.3 285.5 16.6 2.7 188.5 1.8 | 256,561 72.8 2,119.0 9.7 23.2 23.3 0.3
15 - 20 | 16,223 4.6 89.8 5.2 15.4 62.9 10.8 | 20,239 5.7 707.9 3.2 98.8 5.9 0.8
20 - 25 | 8,690 2.5 62.0 3.6 19.9 43.5 14.0 | 13,516 3.8 609.0 2.8 127.8 5.0 1.1
25 - 30 | 6,063 1.7 52.2 3.0 24.2 42.6 19.8 | 9,977 2.8 535.2 2.5 152.6 6.7 1.9
30 - 40 | 7,826 2.2 85.0 4.9 30.8 63.3 23.0 | 12,117 3.4 828.1 3.8 196.6 7.3 1.7
40 - 50 | 4,355 1.2 60.2 3.5 39.7 44.3 29.2 | 7,229 2.1 635.1 2.9 255.3 5.1 2.0
50 - 100 | 9,187 2.6 182.4 10.6 57.1 213.9 67.0 | 15,830 4.5 2,060.4 9.5 388.3 26.0 4.9
100 - 200 | 3,540 1.0 130.3 7.6 107.5 179.1 147.8 | 8,197 2.3 2,076.7 9.5 791.1 19.7 7.5
200 - 400 | 1,391 0.4 110.1 6.4 233.3 131.0 277.7 | 4,452 1.3 2,211.0 10.1 1,580.1 20.7 14.8
400 - 800 | 750 0.2 113.8 6.6 448.6 169.7 668.9 | 2,289 0.6 2,177.7 10.0 3,090.1 29.2 41.4
800 - 1600 | 376 0.1 106.0 6.2 866.2 161.9 1,322.7 | 1,087 0.3 1,962.1 9.0 5,885.5 42.2 126.6
1600 - 3200 | 142 0.0 78.7 4.6 1,803.5 110.2 2,526.2 | 619 0.2 2,295.6 10.5 11,712.9 63.7 324.9
3200 - 6400 | 81 0.0 92.4 5.4 3,727.5 125.0 5,040.9 | 322 0.1 2,331.3 10.7 21,733.5 75.3 702.0
6400 - 12800 | 61 0.0 136.4 7.9 6,905.1 228.9 11,589.0 | 69 0.0 899.3 4.1 40,976.1 29.3 1,333.5
> 12800 | 29 0.0 132.9 7.7 13,771.2 241.5 25,026.1 | 13 0.0 345.0 1.6 75,072.2 13.0 2,819.6
Total | 350,623 100.0 1,717.5 100.0 13.7 2,006.3 16.0 | 352,517 100.0 21,793.5 100.0 175.7 372.4 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-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 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 | 132,545 36.8 15.1 0.9 0.3 4.7 0.1 | 86,017 22.8 76.5 0.3 2.5 0.7 0.0
1 - 2 | 41,008 11.4 19.9 1.2 1.4 8.9 0.6 | 45,023 12.0 132.7 0.6 8.3 1.3 0.1
2 - 4 | 44,318 12.3 42.7 2.5 2.7 21.6 1.4 | 51,020 13.5 294.6 1.3 16.2 3.4 0.2
4 - 6 | 26,059 7.2 41.9 2.4 4.5 24.7 2.7 | 30,496 8.1 297.4 1.3 27.6 3.7 0.3
6 - 8 | 18,371 5.1 41.3 2.4 6.3 27.7 4.2 | 22,102 5.9 303.1 1.3 38.8 3.8 0.5
8 - 10 | 13,977 3.9 40.4 2.3 8.0 29.3 5.8 | 16,805 4.5 299.7 1.3 50.5 3.2 0.5
Subtotal <=10 | 276,278 76.7 201.2 11.7 2.0 117.0 1.2 | 251,463 66.8 1,404.0 6.2 15.8 16.1 0.2
10 - 12 | 10,222 2.8 35.8 2.1 9.8 25.4 7.0 | 13,273 3.5 290.1 1.3 61.9 3.1 0.7
12 - 15 | 12,772 3.5 54.0 3.1 11.8 45.1 9.8 | 16,573 4.4 445.4 2.0 76.3 4.1 0.7
Subtotal <=15 | 299,272 83.0 291.0 16.9 2.7 187.5 1.8 | 281,309 74.7 2,139.5 9.5 21.5 23.4 0.2
15 - 20 | 17,189 4.8 95.2 5.5 15.4 72.0 11.6 | 19,408 5.2 674.2 3.0 98.8 5.7 0.8
20 - 25 | 8,715 2.4 62.2 3.6 20.1 42.1 13.6 | 13,496 3.6 601.8 2.7 127.2 5.4 1.1
25 - 30 | 6,380 1.8 54.2 3.2 24.0 43.0 19.0 | 9,160 2.4 495.6 2.2 155.5 4.5 1.4
30 - 40 | 7,698 2.1 83.7 4.9 31.0 56.6 21.0 | 12,527 3.3 838.7 3.7 194.2 9.2 2.1
40 - 50 | 4,505 1.3 62.1 3.6 39.4 50.3 31.9 | 7,479 2.0 643.8 2.9 251.8 7.2 2.8
50 - 100 | 10,385 2.9 206.4 12.0 57.4 276.6 76.9 | 15,225 4.0 1,964.1 8.7 391.5 21.2 4.2
100 - 200 | 3,227 0.9 124.2 7.2 115.7 133.2 124.0 | 8,547 2.3 2,078.8 9.2 776.1 23.4 8.7
200 - 400 | 1,459 0.4 112.4 6.5 231.1 138.8 285.6 | 4,454 1.2 2,152.3 9.5 1,577.3 22.8 16.7
400 - 800 | 828 0.2 123.9 7.2 450.2 188.3 684.1 | 2,634 0.7 2,474.2 11.0 3,096.7 31.0 38.8
800 - 1600 | 422 0.1 117.0 6.8 854.3 181.5 1,325.7 | 1,307 0.3 2,335.6 10.4 5,898.1 47.7 120.4
1600 - 3200 | 131 0.0 72.1 4.2 1,750.8 107.8 2,615.8 | 675 0.2 2,429.5 10.8 11,546.5 68.2 324.0
3200 - 6400 | 81 0.0 76.6 4.5 3,547.7 115.8 5,362.8 | 330 0.1 2,400.3 10.6 21,892.6 79.3 723.6
6400 - 12800 | 52 0.0 129.1 7.5 7,625.2 205.1 12,118.9 | 66 0.0 912.0 4.0 41,107.9 26.2 1,179.3
> 12800 | 24 0.0 110.3 6.4 14,847.4 232.0 31,243.6 | 21 0.0 412.8 1.8 63,668.8 28.7 4,424.8
Total | 360,368 100.0 1,720.3 100.0 13.4 2,030.7 15.9 | 376,638 100.0 22,553.1 100.0 171.1 403.9 3.1
 
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 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 | 133,122 36.8 15.4 0.9 0.3 4.3 0.1 | 75,888 21.8 68.0 0.3 2.5 0.6 0.0
1 - 2 | 40,873 11.3 19.8 1.1 1.3 8.6 0.6 | 41,137 11.8 121.8 0.5 8.2 1.3 0.1
2 - 4 | 43,797 12.1 41.8 2.4 2.7 21.4 1.4 | 47,035 13.5 272.5 1.2 16.2 3.4 0.2
4 - 6 | 26,066 7.2 41.8 2.4 4.5 25.0 2.7 | 28,700 8.2 281.2 1.3 27.5 3.8 0.4
6 - 8 | 18,083 5.0 40.9 2.4 6.3 26.7 4.1 | 20,719 5.9 284.1 1.3 38.5 3.9 0.5
8 - 10 | 13,736 3.8 39.7 2.3 8.0 27.8 5.6 | 15,916 4.6 284.3 1.3 50.2 3.3 0.6
Subtotal <=10 | 275,677 76.2 199.5 11.5 2.0 113.9 1.2 | 229,395 65.8 1,311.9 5.9 16.0 16.2 0.2
10 - 12 | 10,785 3.0 38.3 2.2 9.9 25.6 6.6 | 12,446 3.6 271.7 1.2 61.5 3.1 0.7
12 - 15 | 12,485 3.5 53.3 3.1 11.9 41.9 9.3 | 15,046 4.3 403.8 1.8 75.8 4.2 0.8
Subtotal <=15 | 298,947 82.7 291.0 16.8 2.7 181.3 1.7 | 256,887 73.7 1,987.3 8.9 21.7 23.6 0.3
15 - 20 | 17,068 4.7 94.3 5.5 15.4 75.7 12.4 | 18,519 5.3 645.3 2.9 98.5 5.9 0.9
20 - 25 | 9,472 2.6 67.6 3.9 20.0 41.8 12.4 | 12,727 3.7 570.7 2.6 127.5 5.0 1.1
25 - 30 | 6,517 1.8 55.5 3.2 24.1 43.8 19.0 | 9,019 2.6 492.8 2.2 155.9 4.3 1.4
30 - 40 | 8,170 2.3 89.5 5.2 31.0 59.3 20.6 | 12,320 3.5 830.4 3.7 193.9 9.7 2.3
40 - 50 | 4,864 1.3 67.2 3.9 39.5 55.7 32.7 | 7,059 2.0 615.9 2.8 256.0 4.8 2.0
50 - 100 | 9,745 2.7 198.3 11.5 59.3 219.5 65.6 | 14,806 4.2 1,907.3 8.5 386.0 26.1 5.3
100 - 200 | 3,668 1.0 140.0 8.1 113.2 166.6 134.8 | 7,776 2.2 1,928.1 8.6 785.7 19.6 8.0
200 - 400 | 1,502 0.4 113.1 6.5 229.0 139.8 283.0 | 4,175 1.2 2,023.2 9.1 1,578.6 20.4 15.9
400 - 800 | 890 0.2 132.7 7.7 453.0 192.4 657.0 | 2,670 0.8 2,529.9 11.3 3,131.6 30.9 38.2
800 - 1600 | 459 0.1 132.7 7.7 872.2 200.3 1,316.2 | 1,416 0.4 2,473.1 11.1 5,937.9 51.2 122.9
1600 - 3200 | 154 0.0 78.8 4.6 1,696.2 121.9 2,625.1 | 705 0.2 2,505.0 11.2 11,475.7 73.3 336.0
3200 - 6400 | 72 0.0 75.3 4.4 3,641.8 114.0 5,511.6 | 347 0.1 2,453.1 11.0 21,857.6 82.2 732.1
6400 - 12800 | 36 0.0 80.4 4.7 7,297.3 149.1 13,530.9 | 79 0.0 1,116.1 5.0 40,744.3 34.7 1,266.1
> 12800 | 21 0.0 112.3 6.5 15,091.5 228.6 30,708.3 | 13 0.0 240.0 1.1 66,635.8 16.1 4,482.0
Total | 361,585 100.0 1,728.6 100.0 13.4 1,989.8 15.4 | 348,518 100.0 22,318.3 100.0 181.7 407.9 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-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 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 | 135,324 37.6 15.1 0.9 0.3 4.7 0.1 | 76,960 22.4 68.7 0.3 2.5 0.6 0.0
1 - 2 | 40,413 11.2 19.5 1.1 1.3 8.6 0.6 | 41,310 12.0 122.2 0.6 8.2 1.2 0.1
2 - 4 | 43,068 12.0 41.3 2.4 2.7 20.9 1.4 | 46,638 13.6 269.2 1.2 16.2 3.4 0.2
4 - 6 | 24,474 6.8 39.2 2.2 4.5 23.9 2.7 | 28,580 8.3 277.0 1.3 27.2 4.1 0.4
6 - 8 | 18,143 5.0 40.9 2.3 6.3 26.7 4.1 | 20,179 5.9 276.2 1.3 38.5 3.8 0.5
8 - 10 | 12,756 3.5 36.7 2.1 8.0 25.5 5.6 | 15,350 4.5 269.4 1.2 49.8 3.5 0.7
Subtotal <=10 | 274,178 76.1 192.6 11.0 2.0 110.3 1.1 | 229,017 66.7 1,282.7 5.9 15.7 16.8 0.2
10 - 12 | 10,793 3.0 38.3 2.2 9.9 26.2 6.7 | 11,927 3.5 259.5 1.2 61.3 3.1 0.7
12 - 15 | 12,633 3.5 54.2 3.1 11.9 41.6 9.2 | 14,208 4.1 379.2 1.7 75.5 4.3 0.8
Subtotal <=15 | 297,604 82.6 285.2 16.3 2.7 178.1 1.7 | 255,152 74.3 1,921.4 8.8 21.2 24.2 0.3
15 - 20 | 16,425 4.6 91.0 5.2 15.4 76.6 12.9 | 17,444 5.1 607.8 2.8 98.5 5.9 0.9
20 - 25 | 10,183 2.8 72.9 4.2 19.9 52.4 14.3 | 12,153 3.5 545.8 2.5 127.9 4.5 1.0
25 - 30 | 6,248 1.7 55.3 3.2 24.8 35.9 16.1 | 8,828 2.6 482.8 2.2 156.1 4.2 1.4
30 - 40 | 8,466 2.4 91.7 5.2 30.3 71.9 23.8 | 11,606 3.4 802.3 3.7 197.8 6.4 1.6
40 - 50 | 4,849 1.3 68.4 3.9 39.7 54.6 31.7 | 7,190 2.1 634.5 2.9 254.9 5.2 2.1
50 - 100 | 9,371 2.6 194.0 11.1 59.1 222.2 67.7 | 14,578 4.2 1,896.8 8.7 384.9 23.8 4.8
100 - 200 | 3,860 1.1 148.7 8.5 111.1 169.0 126.3 | 7,589 2.2 1,909.3 8.8 782.1 20.5 8.4
200 - 400 | 1,452 0.4 113.3 6.5 230.9 135.7 276.6 | 3,897 1.1 1,923.1 8.8 1,570.2 20.6 16.8
400 - 800 | 849 0.2 128.9 7.4 454.2 187.2 659.3 | 2,491 0.7 2,405.6 11.0 3,130.5 30.1 39.2
800 - 1600 | 498 0.1 144.3 8.2 879.6 216.4 1,318.7 | 1,342 0.4 2,488.2 11.4 5,975.1 47.3 113.6
1600 - 3200 | 187 0.1 101.0 5.8 1,672.6 167.8 2,778.4 | 717 0.2 2,532.0 11.6 11,210.9 76.1 337.0
3200 - 6400 | 69 0.0 76.2 4.3 3,522.8 120.7 5,579.4 | 331 0.1 2,346.8 10.8 21,294.9 83.9 761.0
6400 - 12800 | 39 0.0 90.5 5.2 7,126.7 174.3 13,726.4 | 76 0.0 1,065.1 4.9 40,994.5 31.5 1,212.3
> 12800 | 19 0.0 92.7 5.3 15,372.1 196.4 32,570.3 | 9 0.0 222.2 1.0 76,031.7 10.1 3,442.6
Total | 360,119 100.0 1,754.2 100.0 13.6 2,059.2 16.0 | 343,403 100.0 21,783.6 100.0 179.9 394.2 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-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 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 | 140,180 37.0 15.7 0.8 0.3 4.9 0.1 | 75,683 22.3 67.9 0.3 2.5 0.6 0.0
1 - 2 | 42,815 11.3 20.7 1.1 1.4 8.9 0.6 | 41,279 12.2 122.4 0.6 8.2 1.2 0.1
2 - 4 | 44,514 11.8 42.5 2.3 2.7 21.8 1.4 | 46,083 13.6 267.1 1.2 16.1 3.4 0.2
4 - 6 | 26,083 6.9 41.7 2.2 4.5 23.9 2.6 | 27,651 8.1 269.2 1.2 27.2 3.9 0.4
6 - 8 | 18,673 4.9 42.2 2.3 6.3 27.7 4.1 | 19,732 5.8 269.1 1.2 38.3 4.0 0.6
8 - 10 | 13,824 3.7 39.5 2.1 8.0 26.7 5.4 | 14,996 4.4 264.8 1.2 49.6 3.6 0.7
Subtotal <=10 | 286,089 75.5 202.3 10.9 2.0 113.9 1.1 | 225,424 66.4 1,260.5 5.7 15.7 16.8 0.2
10 - 12 | 11,077 2.9 39.2 2.1 9.9 25.1 6.3 | 11,869 3.5 257.7 1.2 61.1 3.3 0.8
12 - 15 | 12,351 3.3 53.5 2.9 12.1 35.1 7.9 | 14,089 4.2 375.6 1.7 75.2 4.4 0.9
Subtotal <=15 | 309,517 81.7 295.0 15.9 2.7 174.1 1.6 | 251,382 74.1 1,893.9 8.5 21.1 24.6 0.3
15 - 20 | 16,270 4.3 89.3 4.8 15.3 74.3 12.7 | 16,673 4.9 581.6 2.6 98.3 5.7 1.0
20 - 25 | 12,959 3.4 92.1 5.0 19.8 70.8 15.2 | 11,961 3.5 538.6 2.4 127.6 4.6 1.1
25 - 30 | 8,159 2.2 71.5 3.8 24.5 53.9 18.5 | 8,622 2.5 475.8 2.1 156.3 4.1 1.3
30 - 40 | 9,436 2.5 102.3 5.5 30.5 78.6 23.4 | 11,577 3.4 801.1 3.6 197.2 6.9 1.7
40 - 50 | 4,977 1.3 70.2 3.8 40.0 53.3 30.4 | 7,230 2.1 638.8 2.9 254.7 5.5 2.2
50 - 100 | 9,760 2.6 202.5 10.9 59.3 232.4 68.1 | 14,965 4.4 1,943.2 8.8 382.7 25.1 4.9
100 - 200 | 4,232 1.1 170.0 9.1 116.5 186.3 127.6 | 7,695 2.3 1,952.6 8.8 780.9 23.0 9.2
200 - 400 | 1,670 0.4 130.4 7.0 232.6 146.6 261.4 | 4,162 1.2 2,056.5 9.3 1,569.0 23.8 18.1
400 - 800 | 890 0.2 137.9 7.4 458.9 178.6 594.6 | 2,425 0.7 2,394.2 10.8 3,158.2 28.8 38.0
800 - 1600 | 517 0.1 150.2 8.1 879.9 228.8 1,340.5 | 1,403 0.4 2,607.5 11.8 5,919.8 52.0 118.1
1600 - 3200 | 219 0.1 121.7 6.5 1,719.2 185.3 2,619.2 | 737 0.2 2,590.3 11.7 11,139.7 79.6 342.2
3200 - 6400 | 65 0.0 73.2 3.9 3,595.8 105.4 5,177.2 | 355 0.1 2,390.5 10.8 20,903.9 94.9 830.0
6400 - 12800 | 44 0.0 100.6 5.4 7,060.2 168.2 11,808.3 | 88 0.0 1,181.4 5.3 40,562.0 35.4 1,213.7
> 12800 | 13 0.0 54.2 2.9 14,353.5 119.6 31,637.8 | 5 0.0 110.0 0.5 67,054.7 7.8 4,753.7
Total | 378,728 100.0 1,861.2 100.0 13.8 2,056.3 15.3 | 339,280 100.0 22,156.0 100.0 184.7 421.7 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-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 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 | 140,205 35.8 16.4 0.8 0.3 4.7 0.1 | 72,483 22.0 64.5 0.3 2.5 0.6 0.0
1 - 2 | 45,532 11.6 22.0 1.1 1.4 9.4 0.6 | 39,517 12.0 117.1 0.5 8.2 1.2 0.1
2 - 4 | 47,020 12.0 45.2 2.3 2.7 22.3 1.3 | 44,827 13.6 259.1 1.2 16.1 3.3 0.2
4 - 6 | 27,714 7.1 44.3 2.3 4.5 27.1 2.7 | 26,772 8.1 260.4 1.2 27.2 3.9 0.4
6 - 8 | 19,509 5.0 43.8 2.3 6.3 29.3 4.2 | 19,107 5.8 259.5 1.2 38.2 4.0 0.6
8 - 10 | 14,364 3.7 41.3 2.1 8.0 28.0 5.5 | 14,609 4.4 256.4 1.1 49.4 3.8 0.7
Subtotal <=10 | 294,344 75.3 213.0 11.0 2.0 120.9 1.2 | 217,315 65.9 1,217.1 5.4 15.7 16.8 0.2
10 - 12 | 10,916 2.8 38.3 2.0 9.9 25.3 6.5 | 11,404 3.5 243.9 1.1 60.4 3.6 0.9
12 - 15 | 13,407 3.4 57.5 3.0 12.0 39.3 8.2 | 13,512 4.1 358.7 1.6 75.1 4.3 0.9
Subtotal <=15 | 318,667 81.5 308.9 16.0 2.7 185.4 1.6 | 242,231 73.4 1,819.7 8.1 21.1 24.7 0.3
15 - 20 | 15,096 3.9 83.5 4.3 15.5 56.8 10.6 | 15,904 4.8 551.3 2.5 98.2 5.6 1.0
20 - 25 | 14,526 3.7 102.5 5.3 19.8 80.3 15.5 | 11,423 3.5 512.7 2.3 127.2 4.9 1.2
25 - 30 | 9,136 2.3 79.4 4.1 24.5 58.1 17.9 | 8,558 2.6 471.1 2.1 156.6 3.9 1.3
30 - 40 | 9,605 2.5 102.5 5.3 30.5 79.2 23.6 | 11,773 3.6 809.4 3.6 196.9 7.2 1.8
40 - 50 | 4,867 1.2 66.9 3.5 39.9 47.7 28.4 | 7,541 2.3 654.8 2.9 250.4 8.1 3.1
50 - 100 | 11,129 2.8 224.8 11.6 58.7 267.0 69.8 | 14,957 4.5 1,945.1 8.7 385.4 22.8 4.5
100 - 200 | 4,419 1.1 175.4 9.1 117.9 185.5 124.7 | 7,910 2.4 1,986.3 8.9 773.1 24.4 9.5
200 - 400 | 1,722 0.4 132.1 6.8 236.1 139.5 249.3 | 4,485 1.4 2,196.3 9.8 1,554.1 25.7 18.2
400 - 800 | 1,012 0.3 150.4 7.8 459.6 202.0 617.2 | 2,446 0.7 2,372.9 10.6 3,127.3 29.3 38.6
800 - 1600 | 560 0.1 158.1 8.2 878.1 243.4 1,351.3 | 1,494 0.5 2,718.7 12.1 5,949.8 51.8 113.4
1600 - 3200 | 232 0.1 129.7 6.7 1,786.7 185.3 2,551.9 | 761 0.2 2,721.9 12.1 11,214.6 88.7 365.3
3200 - 6400 | 90 0.0 91.7 4.7 3,394.3 154.7 5,727.3 | 316 0.1 2,222.2 9.9 21,028.9 89.4 845.9
6400 - 12800 | 42 0.0 105.5 5.5 7,522.6 136.3 9,712.1 | 89 0.0 1,180.4 5.3 39,026.2 45.9 1,517.7
> 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 | 391,109 100.0 1,934.0 100.0 13.9 2,055.1 14.8 | 329,900 100.0 22,409.4 100.0 192.5 441.9 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-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 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 | 139,099 35.8 16.4 0.8 0.3 4.8 0.1 | 69,670 22.2 62.1 0.3 2.5 0.6 0.0
1 - 2 | 45,244 11.6 22.1 1.1 1.4 9.5 0.6 | 37,150 11.8 110.1 0.5 8.2 1.2 0.1
2 - 4 | 46,653 12.0 44.6 2.3 2.7 22.7 1.4 | 41,707 13.3 241.2 1.1 16.1 3.2 0.2
4 - 6 | 27,564 7.1 44.2 2.3 4.5 27.4 2.8 | 24,530 7.8 238.3 1.1 27.1 3.7 0.4
6 - 8 | 18,929 4.9 42.5 2.2 6.3 28.0 4.1 | 17,703 5.6 240.4 1.1 37.9 4.0 0.6
8 - 10 | 14,882 3.8 43.3 2.2 8.1 27.8 5.2 | 13,613 4.3 240.1 1.1 49.3 3.7 0.8
Subtotal <=10 | 292,371 75.2 213.1 10.9 2.0 120.2 1.1 | 204,373 65.0 1,132.3 5.1 15.5 16.4 0.2
10 - 12 | 11,457 2.9 39.9 2.0 9.7 30.9 7.5 | 11,171 3.6 240.6 1.1 60.3 3.6 0.9
12 - 15 | 12,456 3.2 53.9 2.8 12.1 34.7 7.8 | 13,285 4.2 353.5 1.6 74.5 4.8 1.0
Subtotal <=15 | 316,284 81.3 306.9 15.7 2.7 185.7 1.6 | 228,829 72.8 1,726.4 7.8 21.1 24.7 0.3
15 - 20 | 15,317 3.9 85.5 4.4 15.6 57.3 10.5 | 15,188 4.8 524.2 2.4 97.2 5.9 1.1
20 - 25 | 13,481 3.5 97.2 5.0 20.1 69.3 14.3 | 11,016 3.5 494.4 2.2 126.7 4.9 1.2
25 - 30 | 9,152 2.4 79.0 4.0 24.1 60.0 18.3 | 8,340 2.7 457.8 2.1 155.1 4.5 1.5
30 - 40 | 10,492 2.7 113.6 5.8 30.4 83.5 22.4 | 11,311 3.6 782.7 3.5 197.3 6.8 1.7
40 - 50 | 5,281 1.4 72.9 3.7 39.4 58.5 31.6 | 7,562 2.4 654.8 3.0 248.7 9.0 3.4
50 - 100 | 10,588 2.7 220.9 11.3 59.9 252.4 68.5 | 14,885 4.7 1,969.2 8.9 386.7 22.8 4.5
100 - 200 | 4,503 1.2 172.1 8.8 112.5 184.9 120.9 | 7,749 2.5 1,962.8 8.9 776.0 24.2 9.6
200 - 400 | 1,875 0.5 139.7 7.2 224.9 179.3 288.5 | 4,350 1.4 2,167.8 9.8 1,555.3 25.5 18.3
400 - 800 | 953 0.2 144.2 7.4 459.2 189.5 603.2 | 2,505 0.8 2,467.4 11.1 3,124.9 30.2 38.2
800 - 1600 | 616 0.2 171.6 8.8 860.8 276.0 1,384.4 | 1,456 0.5 2,688.0 12.1 5,947.0 49.4 109.3
1600 - 3200 | 217 0.1 118.2 6.1 1,690.4 198.0 2,831.0 | 712 0.2 2,576.4 11.6 11,370.9 82.8 365.4
3200 - 6400 | 94 0.0 107.9 5.5 3,561.9 163.9 5,408.9 | 364 0.1 2,489.1 11.2 20,968.7 103.7 873.5
6400 - 12800 | 45 0.0 105.4 5.4 7,318.3 145.0 10,071.6 | 80 0.0 1,002.5 4.5 38,479.0 44.3 1,698.6
> 12800 | 5 0.0 15.4 0.8 11,437.7 22.1 16,443.3 | 7 0.0 209.3 0.9 81,684.1 7.6 2,974.0
Total | 388,903 100.0 1,950.5 100.0 14.1 2,125.2 15.3 | 314,354 100.0 22,172.9 100.0 198.9 446.3 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-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 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 | 138,384 35.3 16.4 0.8 0.3 4.7 0.1 | 65,694 21.7 58.7 0.3 2.5 0.6 0.0
1 - 2 | 45,881 11.7 22.3 1.1 1.4 9.4 0.6 | 35,659 11.8 104.4 0.5 8.2 1.2 0.1
2 - 4 | 47,349 12.1 44.9 2.3 2.7 22.8 1.4 | 39,998 13.2 230.2 1.1 16.1 3.2 0.2
4 - 6 | 28,036 7.1 44.8 2.3 4.5 27.6 2.8 | 23,896 7.9 231.4 1.1 27.1 3.6 0.4
6 - 8 | 18,369 4.7 41.0 2.1 6.3 27.3 4.2 | 17,092 5.7 230.5 1.1 38.0 3.8 0.6
8 - 10 | 15,304 3.9 44.1 2.2 8.1 28.9 5.3 | 13,149 4.4 228.5 1.1 48.9 3.8 0.8
Subtotal <=10 | 293,323 74.8 213.5 10.8 2.0 120.8 1.2 | 195,488 64.7 1,083.7 5.1 15.5 16.1 0.2
10 - 12 | 12,242 3.1 42.9 2.2 9.8 30.3 6.9 | 10,437 3.5 223.3 1.0 60.4 3.4 0.9
12 - 15 | 13,263 3.4 57.3 2.9 12.1 39.8 8.4 | 13,076 4.3 344.5 1.6 74.2 5.0 1.1
Subtotal <=15 | 318,828 81.3 313.6 15.9 2.8 190.9 1.7 | 219,001 72.5 1,651.5 7.7 21.2 24.4 0.3
15 - 20 | 14,857 3.8 82.5 4.2 15.6 54.3 10.3 | 15,678 5.2 534.0 2.5 95.9 7.2 1.3
20 - 25 | 12,763 3.3 91.6 4.6 20.0 69.6 15.2 | 10,592 3.5 472.7 2.2 126.2 5.0 1.3
25 - 30 | 9,797 2.5 85.3 4.3 24.3 59.3 16.9 | 7,898 2.6 429.8 2.0 154.4 4.6 1.6
30 - 40 | 10,601 2.7 115.2 5.8 30.6 82.1 21.8 | 10,775 3.6 743.1 3.5 196.7 6.9 1.8
40 - 50 | 5,467 1.4 74.4 3.8 38.7 66.1 34.4 | 6,964 2.3 616.0 2.9 254.4 5.4 2.2
50 - 100 | 11,538 2.9 238.5 12.1 59.1 273.0 67.6 | 14,414 4.8 1,932.1 9.0 390.7 19.7 4.0
100 - 200 | 4,521 1.2 164.6 8.3 106.5 224.4 145.2 | 7,672 2.5 1,991.4 9.3 780.6 23.0 9.0
200 - 400 | 1,904 0.5 143.0 7.2 225.3 174.7 275.3 | 4,246 1.4 2,157.1 10.1 1,557.5 26.2 19.0
400 - 800 | 948 0.2 146.0 7.4 467.2 188.8 604.0 | 2,415 0.8 2,410.4 11.3 3,110.4 29.9 38.6
800 - 1600 | 599 0.2 177.4 9.0 900.9 258.7 1,313.8 | 1,389 0.5 2,582.2 12.1 5,944.8 47.3 109.0
1600 - 3200 | 232 0.1 119.8 6.1 1,661.0 221.4 3,069.5 | 682 0.2 2,437.3 11.4 11,308.2 79.8 370.2
3200 - 6400 | 79 0.0 91.2 4.6 3,767.9 120.6 4,982.3 | 327 0.1 2,278.6 10.7 20,779.9 109.9 1,002.6
6400 - 12800 | 55 0.0 131.3 6.6 7,096.0 158.1 8,546.1 | 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 | 392,189 100.0 1,974.1 100.0 14.2 2,141.9 15.4 | 302,133 100.0 21,394.0 100.0 200.4 444.5 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-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 1994
 
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 | 143,083 35.5 17.2 0.9 0.3 5.1 0.1 | 63,565 21.1 56.6 0.3 2.5 0.6 0.0
1 - 2 | 46,462 11.5 22.5 1.1 1.4 10.0 0.6 | 36,516 12.1 107.4 0.5 8.2 1.2 0.1
2 - 4 | 49,585 12.3 46.9 2.4 2.7 24.3 1.4 | 40,700 13.5 234.1 1.1 16.1 3.2 0.2
4 - 6 | 28,368 7.0 45.4 2.3 4.5 27.0 2.7 | 24,127 8.0 232.1 1.1 27.0 3.6 0.4
6 - 8 | 19,000 4.7 42.5 2.1 6.2 28.7 4.2 | 17,104 5.7 231.0 1.1 38.0 3.8 0.6
8 - 10 | 16,104 4.0 46.8 2.4 8.1 29.9 5.2 | 12,838 4.3 222.4 1.1 48.8 3.7 0.8
Subtotal <=10 | 302,602 75.0 221.2 11.1 2.1 125.1 1.2 | 194,850 64.7 1,083.7 5.1 15.6 16.1 0.2
10 - 12 | 11,667 2.9 40.8 2.1 9.8 31.2 7.5 | 10,230 3.4 217.8 1.0 60.1 3.4 0.9
12 - 15 | 13,294 3.3 57.6 2.9 12.1 38.9 8.2 | 12,310 4.1 323.3 1.5 74.2 4.6 1.1
Subtotal <=15 | 327,563 81.2 319.6 16.1 2.7 195.2 1.7 | 217,390 72.2 1,624.8 7.7 21.0 24.1 0.3
15 - 20 | 15,601 3.9 87.1 4.4 15.6 57.4 10.3 | 15,486 5.1 525.8 2.5 96.2 7.2 1.3
20 - 25 | 12,883 3.2 92.1 4.6 19.9 66.6 14.4 | 10,634 3.5 465.6 2.2 124.3 6.1 1.6
25 - 30 | 10,067 2.5 89.8 4.5 24.9 54.2 15.1 | 7,741 2.6 416.6 2.0 154.0 4.7 1.8
30 - 40 | 11,196 2.8 119.9 6.0 30.1 98.4 24.7 | 10,827 3.6 733.8 3.5 194.1 8.3 2.2
40 - 50 | 5,365 1.3 74.8 3.8 39.7 54.5 28.9 | 6,792 2.3 595.6 2.8 253.7 5.5 2.4
50 - 100 | 11,609 2.9 233.0 11.7 57.4 282.0 69.5 | 14,718 4.9 1,935.7 9.2 386.9 23.2 4.6
100 - 200 | 5,187 1.3 192.1 9.7 107.1 258.3 144.0 | 8,034 2.7 2,070.7 9.8 780.1 25.1 9.4
200 - 400 | 1,828 0.5 140.1 7.1 231.0 161.1 265.6 | 4,506 1.5 2,261.0 10.7 1,558.5 27.8 19.2
400 - 800 | 924 0.2 141.9 7.1 468.5 187.6 619.5 | 2,548 0.8 2,502.9 11.9 3,093.7 32.1 39.7
800 - 1600 | 596 0.1 174.5 8.8 890.6 252.6 1,289.0 | 1,377 0.5 2,607.9 12.3 5,960.9 45.9 104.8
1600 - 3200 | 264 0.1 140.6 7.1 1,644.0 251.8 2,943.7 | 633 0.2 2,285.6 10.8 11,122.1 81.2 394.9
3200 - 6400 | 100 0.0 92.9 4.7 3,407.6 162.3 5,952.1 | 282 0.1 1,952.9 9.2 20,325.3 100.9 1,050.6
6400 - 12800 | 45 0.0 81.7 4.1 6,669.1 132.4 10,803.3 | 76 0.0 972.3 4.6 36,153.8 48.9 1,817.8
> 12800 | 2 0.0 4.7 0.2 11,173.7 6.0 14,079.0 | 4 0.0 168.7 0.8 115515.3 4.5 3,062.2
Total | 403,230 100.0 1,985.0 100.0 13.8 2,220.3 15.5 | 301,048 100.0 21,119.8 100.0 199.0 445.5 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-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 1993
 
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 | 143,688 34.6 17.8 0.9 0.3 4.7 0.1 | 61,003 20.9 55.0 0.3 2.5 0.6 0.0
1 - 2 | 49,483 11.9 23.8 1.2 1.3 10.2 0.6 | 34,955 12.0 102.2 0.5 8.2 1.2 0.1
2 - 4 | 50,938 12.2 48.3 2.4 2.7 25.0 1.4 | 39,766 13.6 228.0 1.1 16.0 3.3 0.2
4 - 6 | 29,830 7.2 47.5 2.3 4.5 29.2 2.7 | 23,402 8.0 226.1 1.1 27.0 3.6 0.4
6 - 8 | 20,204 4.9 45.2 2.2 6.3 29.1 4.0 | 16,551 5.7 223.6 1.1 38.1 3.5 0.6
8 - 10 | 16,725 4.0 48.1 2.4 8.1 32.9 5.5 | 12,838 4.4 223.5 1.1 49.0 3.7 0.8
Subtotal <=10 | 310,868 74.7 230.7 11.3 2.1 131.2 1.2 | 188,515 64.5 1,058.4 5.2 15.8 15.8 0.2
10 - 12 | 12,274 3.0 42.9 2.1 9.8 30.1 6.9 | 10,163 3.5 216.1 1.1 60.2 3.4 0.9
12 - 15 | 13,872 3.3 58.5 2.9 12.0 41.2 8.5 | 12,132 4.2 317.4 1.6 74.1 4.7 1.1
Subtotal <=15 | 337,014 81.0 332.1 16.3 2.8 202.5 1.7 | 210,810 72.2 1,591.9 7.8 21.2 23.9 0.3
15 - 20 | 16,649 4.0 92.8 4.6 15.6 59.8 10.1 | 14,533 5.0 495.1 2.4 96.6 6.5 1.3
20 - 25 | 12,984 3.1 92.6 4.6 20.0 66.8 14.4 | 10,647 3.6 468.4 2.3 125.0 5.7 1.5
25 - 30 | 9,848 2.4 87.4 4.3 24.9 48.5 13.8 | 7,549 2.6 403.8 2.0 151.7 5.6 2.1
30 - 40 | 12,413 3.0 134.2 6.6 30.4 101.2 22.9 | 10,526 3.6 713.7 3.5 193.8 8.6 2.3
40 - 50 | 5,355 1.3 74.9 3.7 39.7 52.4 27.8 | 6,776 2.3 589.8 2.9 251.4 6.3 2.7
50 - 100 | 13,133 3.2 262.2 12.9 56.9 367.8 79.8 | 14,232 4.9 1,889.4 9.3 386.1 22.9 4.7
100 - 200 | 4,618 1.1 184.6 9.1 116.3 210.0 132.2 | 7,827 2.7 2,028.4 10.0 775.7 26.2 10.0
200 - 400 | 1,848 0.4 143.0 7.0 232.2 159.0 258.1 | 4,500 1.5 2,280.6 11.2 1,561.9 28.7 19.7
400 - 800 | 968 0.2 143.0 7.0 457.0 185.9 594.4 | 2,490 0.9 2,483.6 12.2 3,116.7 33.8 42.4
800 - 1600 | 605 0.1 177.8 8.7 893.6 266.3 1,338.5 | 1,353 0.5 2,635.8 13.0 5,955.2 46.5 105.1
1600 - 3200 | 314 0.1 172.4 8.5 1,646.0 315.7 3,013.8 | 614 0.2 2,173.6 10.7 10,767.9 83.8 415.4
3200 - 6400 | 97 0.0 98.7 4.9 3,273.5 184.5 6,117.8 | 245 0.1 1,620.0 8.0 18,936.1 95.1 1,111.5
6400 - 12800 | 27 0.0 35.4 1.7 5,387.7 102.3 15,557.3 | 66 0.0 773.2 3.8 34,389.1 36.2 1,609.5
> 12800 | 4 0.0 4.3 0.2 11,764.2 3.2 8,639.6 | 3 0.0 147.2 0.7 134430.7 2.4 2,212.8
Total | 415,877 100.0 2,035.6 100.0 13.8 2,326.0 15.7 | 292,171 100.0 20,294.4 100.0 196.9 432.3 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-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 1992
 
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 | 141,214 33.3 17.9 0.8 0.4 4.4 0.1 | 58,850 20.7 52.7 0.3 2.5 0.5 0.0
1 - 2 | 51,016 12.0 24.6 1.1 1.4 10.7 0.6 | 34,070 12.0 99.7 0.5 8.1 1.2 0.1
2 - 4 | 54,232 12.8 51.8 2.4 2.7 26.1 1.3 | 39,592 13.9 227.8 1.2 16.0 3.4 0.2
4 - 6 | 31,347 7.4 50.6 2.3 4.5 30.6 2.7 | 23,696 8.3 228.3 1.2 26.9 3.8 0.4
6 - 8 | 20,568 4.8 46.0 2.1 6.2 30.9 4.2 | 16,495 5.8 223.1 1.1 38.0 3.7 0.6
8 - 10 | 16,710 3.9 48.6 2.2 8.1 32.6 5.4 | 12,670 4.4 222.1 1.1 49.1 3.6 0.8
Subtotal <=10 | 315,087 74.3 239.5 11.0 2.1 135.2 1.2 | 185,373 65.1 1,053.8 5.4 16.0 16.1 0.2
10 - 12 | 12,805 3.0 45.4 2.1 9.9 29.9 6.5 | 9,807 3.4 210.5 1.1 60.3 3.1 0.9
12 - 15 | 15,397 3.6 67.5 3.1 12.2 44.1 8.0 | 11,693 4.1 307.5 1.6 74.0 4.6 1.1
Subtotal <=15 | 343,289 80.9 352.4 16.1 2.9 209.2 1.7 | 206,873 72.6 1,571.8 8.1 21.3 23.8 0.3
15 - 20 | 15,997 3.8 89.0 4.1 15.5 57.6 10.0 | 14,386 5.0 490.5 2.5 96.2 6.6 1.3
20 - 25 | 14,276 3.4 104.4 4.8 20.4 63.9 12.5 | 9,846 3.5 436.3 2.2 125.3 5.2 1.5
25 - 30 | 10,624 2.5 93.6 4.3 24.5 68.5 17.9 | 7,370 2.6 394.5 2.0 152.2 5.3 2.1
30 - 40 | 11,076 2.6 121.7 5.6 30.8 79.4 20.1 | 9,761 3.4 664.4 3.4 194.4 7.5 2.2
40 - 50 | 6,331 1.5 90.2 4.1 40.1 59.3 26.4 | 6,661 2.3 577.1 3.0 246.9 8.3 3.5
50 - 100 | 13,016 3.1 262.1 12.0 57.0 287.4 62.5 | 13,297 4.7 1,777.3 9.1 391.9 17.5 3.9
100 - 200 | 5,618 1.3 211.5 9.7 107.9 288.4 147.1 | 7,988 2.8 2,017.7 10.3 752.5 31.6 11.8
200 - 400 | 1,982 0.5 154.5 7.1 233.2 176.6 266.4 | 4,219 1.5 2,153.7 11.0 1,561.8 25.7 18.6
400 - 800 | 988 0.2 146.6 6.7 454.2 200.7 621.9 | 2,378 0.8 2,451.8 12.6 3,137.6 30.0 38.4
800 - 1600 | 623 0.1 187.6 8.6 906.2 276.4 1,335.1 | 1,307 0.5 2,582.1 13.2 5,968.8 45.2 104.5
1600 - 3200 | 322 0.1 188.0 8.6 1,715.6 336.7 3,073.3 | 572 0.2 2,134.3 10.9 10,856.2 79.4 404.1
3200 - 6400 | 139 0.0 152.0 7.0 3,109.9 358.9 7,344.8 | 210 0.1 1,474.8 7.6 20,112.7 75.6 1,031.2
6400 - 12800 | 17 0.0 31.8 1.5 5,212.6 89.8 14,717.2 | 50 0.0 621.0 3.2 34,865.6 32.4 1,821.6
> 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 3 0.0 152.9 0.8 139278.4 2.6 2,370.0
Total | 424,298 100.0 2,185.4 100.0 14.4 2,552.6 16.9 | 284,921 100.0 19,500.1 100.0 193.6 396.8 3.9
 
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-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