Orenburg Oblast's internal borders are with the republics of Bashkortostan and Tatarstan to the north, Chelyabinsk Oblast to the north-east, and with Samara and Saratov oblasts to the west. Orenburg Oblast also shares an international border with Kazakhstan to the east and south. The oblast is situated on the boundary between Europe and Asia. The majority of its territory lies west of the continental divide in European Russia and smaller sections in the east situated on the Asian side of the divide. The most important river of the oblast is the Ural and the largest lake Shalkar-Yega-Kara. Orenburg is traversed by the northeasterly line of equal latitude and longitude. The highest point of the oblast is the 668 m (2,192 ft)-high Nakas.[10]
In the first half of the 18th century, the Russian Empire constructed the Irtysh line [ru], a series of forty-six forts, including Orenburg,[11] to prevent Kazakh and Dzungar nomads from raiding Russian territory.[12]
Orenburg played a major role in Pugachev's Rebellion (1773–1774), the largest peasant revolt in Russian history.
As of a 2012 survey,[23] 40.2% of the population of Orenburg Oblast adheres to the Russian Orthodox Church, 3% declare themselves to be generic nondenominational Christians (excluding the Protestant definition), 2% are Orthodox Christian believers who do not belong to any church or belong to non-Russian Orthodox churches. Muslims constitute 13% of the population. 3% of the population are followers of the Slavic native faith (Rodnovery), 6.8% are followers of other religions or did not give an answer to the survey. In addition, 20% of the population declares to be "spiritual but not religious" and 12% to be atheist.[23]
Orenburg Oblast is one of the major agricultural areas of Russia. Its climate is favorable to farming with a humid spring, dry summer and many sunny days, which make perfect conditions for cultivating hard wheat and rye, sunflowers, potatoes, peas, beans, corn, and gourds.
The range of the oblast's export commodities includes oil and oil products, gas and gas produced products, rolled ferrous and non-ferrous metals, nickel, asbestos, chromium compounds, rough copper, electric engines, and radiators, which are used to make products from the machine-building industry.
^Президент Российской Федерации. Указ №849 от 13 мая 2000 г. «О полномочном представителе Президента Российской Федерации в федеральном округе». Вступил в силу 13 мая 2000 г. Опубликован: "Собрание законодательства РФ", No. 20, ст. 2112, 15 мая 2000 г. (President of the Russian Federation. Decree #849 of May 13, 2000 On the Plenipotentiary Representative of the President of the Russian Federation in a Federal District. Effective as of May 13, 2000.).
^Госстандарт Российской Федерации. №ОК 024-95 27 декабря 1995 г. «Общероссийский классификатор экономических регионов. 2. Экономические районы», в ред. Изменения №5/2001 ОКЭР. (Gosstandart of the Russian Federation. #OK 024-95 December 27, 1995 Russian Classification of Economic Regions. 2. Economic Regions, as amended by the Amendment #5/2001 OKER. ).
^"Russian Colonization and the Genesis of Kazak National Consciousness". S. Sabol (2003). Springer. p.27 ISBN0230599427
^"Central Asia, 130 Years of Russian Dominance: A Historical Overview". Edward A. Allworth, Edward Allworth (1994). Duke University Press. p. 10. ISBN0822315211
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