The economics of petroleum . 7 50 6 00 5 00 0 21) 1 20 AverageSize ofRefineriesJan. 1, 1921(In Thou-sands ofBarrelsper Day) i 1 34 07,705. 00 I ! 0. I i 4 001. 50 1180 I 1295 I 1531 ! 1888 I 4 4 the oil-fields of the country. If the industrial and agriculturaldensity of the country is held in mind, the analysis of refinery figure


The economics of petroleum . 7 50 6 00 5 00 0 21) 1 20 AverageSize ofRefineriesJan. 1, 1921(In Thou-sands ofBarrelsper Day) i 1 34 07,705. 00 I ! 0. I i 4 001. 50 1180 I 1295 I 1531 ! 1888 I 4 4 the oil-fields of the country. If the industrial and agriculturaldensity of the country is held in mind, the analysis of refinery figuresjust given will point to the regions where further refinery develop- TYPES OF REFINERIES 93 ments are likely to take place. It is quite apparent that refineryinstallation is unduly concentrated in the south-central states and ahigh refinery mortality is in consequence to be looked for in thatregion. Types of Refineries.—An economic classification of refineries intofundamental types has been given on page 77. Unfortunately. OVER 10,000 BARRELSDAILY CAPACITY 5,001-10,000 BARRELS 2,501 ? 5,000 BARRELSUNDER 2,501 BARRELS PENN. ILL. IND. KAN. TEX. - LA. WYO. CALIF. ETC. ETC. OKLA. ETC. COLO. FIGURES IN RECTANGLES ARE THOUSANDS OF BARRELS DAILY CAPACITY Fig. 38.—Refinery capacity in various parts of the country, Oct., 1920, by sizesof refineries; data from Oil Weekly. statistical data arc wanting for measuring the aggregate capacity ofeach type. The Bureau of Mines, however, has published a list ofrefineries ^ in which each refinery is classified according to the rangeof products turned out. This list yields information of value withreference to the relative miportance of the refinery types, althoughthe figures must be used with some discretion, since a single plantmay include two or more components of different character. Forexample, many of the refineries along the East Coast classified by the 1 Petroleum Refineries in the United States, January 1, 1921, U. S. Bureauof


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