Geography
United States
3,858 results
Texas
598 results
Alaska
370 results
California
252 results
Mexico, Gulf of
201 results
Middle East
190 results
Mexico
177 results
Canada
149 results
Louisiana
106 results
Wyoming
103 results
Iraq
101 results
Oklahoma
97 results
Great Britain
95 results
Iran
95 results
Russia (Federation)
95 results
Europe
93 results
North Sea
92 results
Illinois
91 results
Venezuela
90 results
China
89 results
New Mexico
79 results
National Petroleum Reserve
73 results
National Petroleum Reserve (Alaska)
71 results
Pennsylvania
70 results
Kansas
68 results
Soviet Union
67 results
Saudi Arabia
64 results
Colorado
59 results
Nigeria
57 results
Persian Gulf Region
55 results
Gulf Coast (U.S.)
52 results
Developing countries
48 results
Alabama
45 results
Arab countries
42 results
North Slope
41 results
West (U.S.)
41 results
Utah
40 results
North America
39 results
Arctic National Wildlife Refuge
38 results
Asia
38 results
Montana
38 results
Africa
37 results
Australia
37 results
North Dakota
35 results
Kentucky
33 results
Gulf States
32 results
Latin America
32 results
Gulf of Mexico
31 results
Arctic regions
30 results
Caspian Sea Region
30 results
more…