Region
United States
1,054
Middle East
77
Iraq
70
Alaska
69
Mexico
62
Saudi Arabia
48
Russia (Federation)
42
China
38
Iran
29
Canada
28
Venezuela
28
Nigeria
22
Mexico, Gulf of
21
Persian Gulf Region
20
Texas
20
Africa
18
Great Britain
18
Alberta
17
Ecuador
16
Arab countries
14
California
14
Soviet Union
14
Developing countries
12
Japan
12
Arctic National Wildlife Refuge
11
India
10
North America
10
Russia
10
Azerbaijan
9
Niger River Delta
9
Louisiana
8
National Petroleum Reserve
8
North Dakota
8
Norway
8
Oklahoma
8
Colombia
7
Europe
7
Pennsylvania
7
United Arab Emirates
7
Abqaiq
6
Arctic National Wildlife Refuge (Alaska)
6
France
6
Kuwait
6
Latin America
6
North Slope
6
Northeastern States
6
Ontario
6
Persian Gulf States
6
Amazon River Region
5
Brazil
5
more ...