The economics of petroleum . ir respectiveeconomic limits. The distribution of producing wells onJanuary 1, 1919, more recent data in sufficientdetail being unavailable, is shown on a mapof the United States in Fig. 12. The relativeFig. 11.—Number of density of wells in the Appalachian field pointsproducing oil wells ^^ ^^le intensity of exploitation in this region,in the United States mi i • -i i r i • -i 1 he change m the number oi producmg oil- I N V/ OHIO21 1 T m -•.••ICLINOIS; ^ALL FIGURES ARETHOUSANDS OF WELLS on Oct. 31, 1920, byfields; data from
The economics of petroleum . ir respectiveeconomic limits. The distribution of producing wells onJanuary 1, 1919, more recent data in sufficientdetail being unavailable, is shown on a mapof the United States in Fig. 12. The relativeFig. 11.—Number of density of wells in the Appalachian field pointsproducing oil wells ^^ ^^le intensity of exploitation in this region,in the United States mi i • -i i r i • -i 1 he change m the number oi producmg oil- I N V/ OHIO21 1 T m -•.••ICLINOIS; ^ALL FIGURES ARETHOUSANDS OF WELLS on Oct. 31, 1920, byfields; data from wells in various states for the period from 1913to 1920 is shown in Table 16. It is apparentthat in most states the number of producing wells is being augmented, which means that new wells are drilled in greater number than old wells become extinct. New Wells Completed.—The number of new wells completed in the various fields in each year from 1913-1920 is shown in Table 17, PRODUCING OIL-WELLS 37. 38 THE TREND OF OIL-FIELD DEVELOPMENT Table 16.—Producing Oil-wells ix the United States, 1913-1920, by States fData from U. S. Geological Survey) (In thousands of welh) 1913* 1914* 1915* 1916* 1917* 1918* 1920t California Colorado Illinois 14 1 Indiana Kansas Kentucky Louisiana 0 99 New York 10 7 11 1 Ohio Oklahoma 24 1 Pennsjlvania. . Texas West, ^irginia. . Wyo. and Mont. .Total 169 179 181 189 197 203 259 * December 31. t October 31. Table 17.—Wells Completed in the United States by Fields, 1913
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisheretcet, bookyear1921
