Gas Drilling's Environmental Impact

Colorado

How to read these graphs:

The graphs on the left show the rate of growth compared to the earliest year for which we have data -- in most cases 2003. The gray lines represent a theoretical constant annual rate of change.

The bar charts on the right show the actual values for each year we have data. For example, in 2008, Colorado had 3,442 new wells drilled.

State Data

New wells drilled are based on a calendar year, and 2009 numbers are not complete. Enforcement staff numbers from '03 to '06 were not made available because Colorado Oil and Gas Conservation Commission staff said that due to a reorganization within the COGCC, staff is tracked differently and it would not be accurate to compare current numbers with past numbers.

11 enforcement staff for 34,144 wells in 2008

Wells Drilled: Change Since 2003

Wells Drilled

2003 2004 2005 2006 2007 2008 2009
1,320
1320.0
1,979
1979.0
1,920
1920.0
2,127
2127.0
2,835
2835.0
3,442
3442.0
3,286
3286.0

Enforcement Actions: Change Since 2003

Enforcement Actions

2003 2004 2005 2006 2007 2008 2009
170
170.0
267
267.0
258
258.0
264
264.0
551
551.0
326
326.0
215
215.0

Enforcement Staff: Change Since 2007

Enforcement Staff

2003 2004 2005 2006 2007 2008 2009
No Data. No Data. No Data. No Data. 11
11.0
11
11.0
19
19.0

Total Wells: Change Since 2003

Total Wells

2003 2004 2005 2006 2007 2008 2009
23,963
23963.0
25,283
25283.0
27,262
27262.0
29,182
29182.0
31,309
31309.0
34,144
34144.0
37,586
37586.0

BLM Data

In Colorado, much of the oil and gas drilling takes place on land that is federally regulated, which can include national parks or Native American reservations. Data provided by the Bureau of Land Management represents wells drilled on that land.

19 enforcement staff for 5,387 wells in 2008

Wells Drilled: Change Since 2003

Wells Drilled

2003 2004 2005 2006 2007 2008 2009
264
264.0
308
308.0
381
381.0
444
444.0
532
532.0
569
569.0
345
345.0

Enforcement Actions: Change Since 2003

Enforcement Actions

2003 2004 2005 2006 2007 2008 2009
841
841.0
531
531.0
430
430.0
328
328.0
552
552.0
612
612.0
742
742.0

Enforcement Staff: Change Since 2003

Enforcement Staff

2003 2004 2005 2006 2007 2008 2009
16
16.0
14
14.0
13
13.0
20
20.0
18
18.0
19
19.0
22
22.0

Total Wells: Change Since 2003

Total Wells

2003 2004 2005 2006 2007 2008 2009
4,001
4001.0
4,188
4188.0
4,445
4445.0
4,724
4724.0
5,026
5026.0
5,387
5387.0
5,894
5894.0