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Illinois 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.
(Mbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(MMcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(MMcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(Mbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 1,194 22.0 189.6 1.8 0.6 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1 - 2 | 1,290 23.8 554.8 5.2 1.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
2 - 4 | 1,377 25.4 1,253.9 11.7 2.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
4 - 6 | 575 10.6 934.1 8.7 4.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6 - 8 | 288 5.3 666.2 6.2 6.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
8 - 10 | 178 3.3 542.2 5.1 8.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=10 | 4,902 90.4 4,141.0 38.7 2.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
10 - 12 | 100 1.8 373.9 3.5 10.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
12 - 15 | 90 1.7 405.1 3.8 13.4 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=15 | 5,092 93.9 4,920.0 46.0 3.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
15 - 20 | 102 1.9 569.9 5.3 17.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
20 - 25 | 52 1.0 363.3 3.4 22.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
25 - 30 | 30 0.6 264.5 2.5 27.6 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
30 - 40 | 49 0.9 549.9 5.1 34.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
40 - 50 | 26 0.5 336.5 3.1 44.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
50 - 100 | 44 0.8 921.7 8.6 70.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
100 - 200 | 14 0.3 671.6 6.3 142.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
200 - 400 | 4 0.1 362.5 3.4 282.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
400 - 800 | 5 0.1 1,047.7 9.8 647.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
800 - 1600 | 2 0.0 683.4 6.4 933.6 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1600 - 3200 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
3200 - 6400 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6400 - 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
> 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Total | 5,420 100.0 10,691.1 100.0 6.4 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
3) 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.
4) 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.
5) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            19APR06

 


Illinois 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.
(Mbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(MMcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(MMcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(Mbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 1,501 27.7 285.6 2.4 0.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1 - 2 | 1,153 21.3 594.2 5.1 1.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
2 - 4 | 1,208 22.3 1,213.6 10.4 2.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
4 - 6 | 566 10.4 966.1 8.3 4.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6 - 8 | 293 5.4 731.0 6.2 7.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
8 - 10 | 168 3.1 535.8 4.6 8.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=10 | 4,889 90.2 4,326.3 37.0 2.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
10 - 12 | 114 2.1 446.8 3.8 11.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
12 - 15 | 92 1.7 445.6 3.8 13.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=15 | 5,095 94.0 5,218.7 44.6 2.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
15 - 20 | 107 2.0 630.9 5.4 17.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
20 - 25 | 53 1.0 414.8 3.5 22.3 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
25 - 30 | 28 0.5 281.2 2.4 27.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
30 - 40 | 44 0.8 522.7 4.5 35.1 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
40 - 50 | 30 0.6 468.8 4.0 44.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
50 - 100 | 39 0.7 914.3 7.8 69.1 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
100 - 200 | 10 0.2 436.7 3.7 127.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
200 - 400 | 5 0.1 523.8 4.5 287.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
400 - 800 | 4 0.1 853.4 7.3 653.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
800 - 1600 | 3 0.1 1,435.7 12.3 1311.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1600 - 3200 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
3200 - 6400 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6400 - 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
> 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Total | 5,418 100.0 11,701.0 100.0 6.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
3) 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.
4) 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.
5) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            19APR06

 


Illinois 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.
(Mbbl)		 % of
Oil
Prod.		 Oil
Rate
per Well
(bbl/Day)		 Annual
Gas
Prod.
(MMcf)		 Gas
Rate
per Well
(Mcf/Day)		 |
|
|
|		 # of
Gas
Wells		 % of
Gas
Wells		 Annual
Gas
Prod.
(MMcf)		 % of
Gas
Prod.		 Gas
Rate
per Well
(Mcf/Day)		 Annual
Oil
Prod.
(Mbbl)		 Oil
Rate
per Well
(bbl/Day)
0 - 1 | 1,539 28.1 291.3 2.6 0.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1 - 2 | 1,197 21.9 621.9 5.6 1.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
2 - 4 | 1,206 22.0 1,217.0 11.0 2.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
4 - 6 | 555 10.1 943.8 8.5 4.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6 - 8 | 281 5.1 700.6 6.3 6.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
8 - 10 | 170 3.1 533.1 4.8 8.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=10 | 4,948 90.4 4,307.7 38.8 2.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
10 - 12 | 105 1.9 398.6 3.6 10.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
12 - 15 | 100 1.8 478.6 4.3 13.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Subtotal <=15 | 5,153 94.2 5,184.9 46.7 2.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
15 - 20 | 104 1.9 640.0 5.8 17.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
20 - 25 | 53 1.0 400.1 3.6 22.3 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
25 - 30 | 26 0.5 252.0 2.3 27.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
30 - 40 | 49 0.9 617.5 5.6 34.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
40 - 50 | 22 0.4 330.7 3.0 44.7 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
50 - 100 | 39 0.7 904.9 8.2 65.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
100 - 200 | 16 0.3 658.1 5.9 128.7 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
200 - 400 | 2 0.0 220.6 2.0 302.2 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
400 - 800 | 3 0.1 549.8 5.0 582.4 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
800 - 1600 | 3 0.1 790.9 7.1 999.9 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
1600 - 3200 | 1 0.0 552.5 5.0 1805.5 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
3200 - 6400 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
6400 - 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
> 12800 | 0 0.0 0.0 0.0 0.0 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
Total | 5,471 100.0 11,101.9 100.0 5.8 0.0 0.0 | 0 0.0 0.0 0.0 0.0 0.0 0.0
 
Notes:
1) State Government agencies and commercial sources provided base data.
2) The Reserves and Production Division, Office of Oil and Gas, EIA has reviewed and edited inaccurate production data.
3) 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.
4) 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.
5) Gas volumes have been converted from the various state pressure bases to the Federal base (14.73 psia).
 
                                                                                                                            19APR06

 


Illinois 2001
 
Distribution of Wells by Production Rate Bracket