Climate Change Implications For US Energy Supply And Use - Climate Change and Energy Supply and Use - page 22

U.S. Onshore Gas Exploration and Development Wells
1990-2007
Source: API Well Ticket Data as of October, 2007

Gas Wells Drilled per County (1990-2007)
1-72
73-216
217-395
396-652
653-1021
1022-1671
1672-2605
2606-3536
3537-7063
7064-17933

USGCRP Temperature Increase

USGCRP Precipitation Decrease

Figure 5 Lower 48 state historic natural gas development areas

U.S. Onshore Oil Exploration and Development Wells
1990-2007
Source: API Well Ticket Data as of October, 2007

Oil Wells Drilled per County (1990-2007)

1-29
30-77
78-143
144-235
236-375
376-641
642-1063
1064-2278
2279-4562
4563-25696

Figure 6 Lower 48 state historic oil development areas