CHARACTER OF THE OIL 265 



at Casiano, and is therefore a typical fuel oil. The heavier oil occurring 

 at Ebano is specially valuable for the manufacture of a high-grade as- 

 phalt, and this is being done at the Ebano refinery, where the yield of 

 this product is about 45 per cent, the 55 per cent of distillates, after 3 to 

 5 per cent of 55° to 57° gasoline is distilled off, being sold to the Waters 

 Pierce refinery or used, as fuel oil. 



Mr. W. L. Garrett, the oil expert who examined the Mexican oil fields 

 for the Mellon interests of Pittsburgh, Pennsylvania, during March, 191.1, 

 collected two samples of oil from Casiano well No. 7, and these, as 

 analyzed by the Gulf Eefinery and reported by Mr. Garrett, gave the 

 following results: 



Huasteca Oil 



Casiano Field, Well No. 7 

 Sample No. 1 

 Gravity, 19.4° Bauine. Pour, 0. 



Flash, 80. B. S., 3 per cent. 



Viscosity, 450 B. O. T. B. T. U., per pound, 19,124. 



Sulphur, 1.93 per cent. 



Fractional Distillation 



Temperature Per cent Gravity 



Over at 259°-385° 10 58.7 



Over at 385°-493° 10 J 



Over at 493°-500° 1 ( 45 ' 9 



Total : 



Distillates 21 51.5 



Residue 78 13.5; pour, 40 



Loss 1 



100 

 Sample No. 2 



Gravity, 19.3° Baume. Pour, 0. 



Flash, 1)6. B. S., 2 per cent. 



Viscosity, 500 B. O. T. B. T. U., per pound, 19,160. 

 Sulphur, 2.08 per cent. 



Fractional Distillation 



Temperature. Percent. Gravity. 



Over at 244°-400° 10 57.8 



Over at 400°-493° 10.0/ 



Over at 493°-500° 0.6( 4f) ' ' 



Total : 



Distillates 20 . ti 50.8 



Residue 78.5 18.4 



Loss .9 



100.0 



