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petroleum

(Encyclopedia) petroleum, oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil. It consists principally of a mixture of…

liquefied petroleum gas

(Encyclopedia) liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. The boiling…

National Petroleum Reserve

(Encyclopedia) National Petroleum Reserve, area, c.23 million acres (9.32 million hectares), Alaska North Slope, situated W of Prudhoe Bay and the Arctic National Wildlife Refuge. The reserve, which…

Nasby, Petroleum V.

(Encyclopedia) Nasby, Petroleum V., pseud. of David Ross Locke, 1833–88, American journalist and satirist, b. Vestal, N.Y. Locke was editor of the Findlay, Ohio, Jeffersonian when he first became…

Organization of Petroleum Exporting Countries

(Encyclopedia) Organization of Petroleum Exporting Countries (OPEC), multinational organization (est. 1960, formally constituted 1961) that coordinates petroleum policies and economic aid among oil-…

Petroleum County, MT Census Data

Montana Petroleum County, Montana People QuickFactsPetroleum CountyMontanaPopulation, 2005 estimate 470935,670Population, percent change, April 1, 2000 to July 1, 2005 -4.7%3.7%Population,…

Petroleum County, MT Housing Statistics

Petroleum county montana dp 4 profile of selected housing characteristics SubjectNumberPercent Total housing units292100.0UNITS IN STRUCTURE1-unit, detached21874.71-unit, attached00.…

Petroleum County, MT Social Statistics

Petroleum county montana dp 2 profile of selected social characteristics SubjectNumberPercent SCHOOL ENROLLMENTPopulation 3 years and over enrolled in school113100.0Nursery school,…

Petroleum County, MT Economic Statistics

Petroleum county montana dp 3 profile of selected economic characteristics SubjectNumberPercent EMPLOYMENT STATUSPopulation 16 years and over377100.0In labor force23762.9Civilian…