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Fracking » California

California

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 2011, California had 2,294 new wells drilled.

56 enforcement staff for 54,300 wells in 2011
29,505 class 2 underground injection wells in 2010, according to the EPA | More »

Wells Drilled: Change Since 2003

Wells Drilled

2003 2004 2005 2006 2007 2008 2009 2010 2011
2,297
2297.0
2,451
2451.0
2,641
2641.0
2,396
2396.0
3,451
3451.0
3,410
3410.0
2,103
2103.0
1,920
1920.0
2,294
2294.0

Enforcement Actions: Change Since 2003

Enforcement Actions

2003 2004 2005 2006 2007 2008 2009 2010 2011
9,769
9769.0
7,661
7661.0
8,906
8906.0
6,917
6917.0
9,095
9095.0
7,611
7611.0
7,506
7506.0
5,208
5208.0
4,829
4829.0

Oil And Gas Enforcement Staff: Change Since 2003

Oil And Gas Enforcement Staff

2003 2004 2005 2006 2007 2008 2009 2010 2011
34
34.0
35
35.0
36
36.0
36
36.0
36
36.0
38
38.0
46
46.0
47
47.0
56
56.0

Oil And Gas Department Budget: Change Since 2004

Oil And Gas Department Budget

2003 2004 2005 2006 2007 2008 2009 2010 2011
No Data. $13.3M
13345000.0
$14.1M
14135041.0
$16.3M
16279877.0
$17.2M
17241138.0
$18.6M
18629375.0
$21.5M
21466848.0
$29.4M
29435000.0
$31.1M
31113000.0

Total Wells: Change Since 2003

Total Wells

2003 2004 2005 2006 2007 2008 2009 2010 2011
48.6K
48579.0
49.2K
49153.0
49.8K
49773.0
51.3K
51330.0
52.4K
52396.0
54.2K
54185.0
53.8K
53825.0
53K
52961.0
54.3K
54300.0

Notes: Data for number of wells drilled in 2011 and total wells in 2009 and 2010 were taken from the Department of Conservation's website. The enforcement action data supplied by the state include deficiencies, violations, formal orders and civil penalties. Enforcement staff includes energy and mineral resource engineers, oil and gas technicians and engineering geologists, who are responsible for the majority of inspections. The state also employs associate oil and gas engineers for whom inspections are a minor component of their jobs. Total wells include active oil and gas wells.

BLM Data

In California, 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.

26 enforcement staff for 7,557 wells in 2011

Wells Drilled: Change Since 2003

Wells Drilled

2003 2004 2005 2006 2007 2008 2009 2010 2011
97
97.0
186
186.0
260
260.0
134
134.0
236
236.0
290
290.0
134
134.0
173
173.0
338
338.0

Enforcement Actions: Change Since 2003

Enforcement Actions

2003 2004 2005 2006 2007 2008 2009 2010 2011
87
87.0
119
119.0
145
145.0
267
267.0
124
124.0
86
86.0
105
105.0
107
107.0
138
138.0

Oil And Gas Enforcement Staff: Change Since 2003

Oil And Gas Enforcement Staff

2003 2004 2005 2006 2007 2008 2009 2010 2011
4
4.0
3
3.0
4
4.0
5
5.0
4
4.0
3
3.0
2
2.0
24
24.0
26
26.0

Oil And Gas Department Budget: Change Since 2003

Oil And Gas Department Budget

2003 2004 2005 2006 2007 2008 2009 2010 2011
$2.9M
2900000.0
$2.8M
2800000.0
$3M
3000000.0
$3.1M
3100000.0
$3.4M
3400000.0
$3.4M
3400000.0
$3.5M
3500000.0
$1.68M
1678507.0
$1.64M
1635425.0

Total Wells: Change Since 2003

Total Wells

2003 2004 2005 2006 2007 2008 2009 2010 2011
4,319
4319.0
4,304
4304.0
4,046
4046.0
4,526
4526.0
4,456
4456.0
4,716
4716.0
4,774
4774.0
7,326
7326.0
7,557
7557.0

Notes: Data are for the fiscal year.