20, 1 Smith: Pidatan Oil Field, Cotabato, Mindanao 37 
TABLE 2.—Analysis of oil from Pidatan, Mindanao. 
[Analysis by the Bureau of Science.] 
Specific gravity at 15.6° C. 0.9297 
Distillation: 
Light oils (below 150° C.) None. 
Burning oils (150° to 800°C.) 45 per cent by volume. 
Heavy oils (300° to 400°C.) 49.5 per cent by volume. 
Residue 5.5 per cent. 
Sediment Large amount. 
Water Trace. 
Base Paraffin. 
Main calories or gross heating value 12,495. 
Available heating value 11,189. 
Sulphur 1.56 per cent. 
TABLE 3.—Cotabato oil, ‘from Mindanao, P. I. 
[Analysis by J. Winkler, chemist, Quartermaster Corps, United States Army.] 
Gravity at 60° F. 20.5 Bé. 
Specific gravity 0.928 
Flash, open cup 233° F. 
Moisture Traces only. 
Sediment Traces only. 
Fire, open cup 261° F. 
Asphalt 0.00 
Wax, approximate 1-2 per cent. 
Gasoline 0.00 
Benzine 0.00 
Kerosene 0.00 
Sulphur Trace only. 
Saponifiable, as resin oils 0.00 
British thermal units 19.965 * 
® Determined by the Bureau of Science. 
Direct industrial uses: ; 
(a) This oil as it stands is splendid Diesel engine fuel, and it is splendid 
oil for compressed air burners for furnaces. Or, it is splendid 
for mixing with the “to heavy” California crude petroleums for 
both purposes named above. 
(b) It is an excellent oil for oil-burning ranges in hotels et al. where 
“soot less” odorless flame is required. 
(c) It can be used as lubricant with constant “drip” ... on bearing. 
(d) Because so low in sulphur, it would be an excellent solvent in the 
rubber recovery. 
Manufactured products from this oil: 
(a) By simply blowing hot air through this oil, it becomes splendid 
transformer oil since so low in sulphur. Also a light household 
lubricant, as is “3 in 1” oil, ete. 
(b) By steam distillation: Three products can be made; viz.: 
(1) Heavy illuminating oil for bunker lamps, an oil of greater 
safety than kerosene. Also a cleaning oil. A floor oil. 
