Ronald F. Broadhead, New Mexico Bureau of Geology and Mineral Resources, a. Division of New Mexico Institute of Mining and Technology. INTRODUCTION. The oil and natural gas that are produced from oil and gas fields reside in porous. and permeable rocks (reservoirs) in which these liquids have collected and accumulated.
Germans (German: Deutsche) are a Germanic ethnic group native to Central Europe, who share a common German ancestry, culture and history, and speak the German language as their native language.
1 Many people came to the U.S. from Germany in the 19th and early 20th century. German American is the most common ethnic group in over half the states. The most number of Germans are found in the Midwest, West, and Pennsylvania.  The fourth most common group is English.