Show U. U ILLS S. S MUST LOOK TO SHALE TO ro I KEEP UP OIL PRODUCTION I Indications that tho the United States State 1 1 cannot continue continuo long IonS to depend on domestic do do- tlc petroleum production to completely completely com com- I dO-I supply the demand and must sooner Booner or later Inter use oil to supply sup up- 1 pI ply the deficit Is the conclusion of oC tho bureau of mines following an investigation est in gatlon gation in tho oil shale industry The Time bureau found no commercial oil shalo shale plants In operation In this country up to this time although there is a well e established Industry In Scotland Tho The shale shalo of oil Industry cannot hope states the bureau to supplant tho time petroleum In Industry In a 1 large way for tor man many years but will probably group grow gro row up from local Industries in favorable o localities It Is an uncertain IntI Industry us try I due to the lack of ot knowledge o of or tho quantity products to be obtained from oil shale in this country and antI because It will require largo capital high technical tech tech- and antI ability and probably provide slow return on tho Invest Invest- Invest men ments b. b Once completely established however ho the tho bUr bureau believes the In Industry Industry industry In- In will have o a successful future It recommends tho the use of or tho the Scotch methods for assaying chalo shalo In this country Oil shalo shale has been distilled In Scotland Scotland Scotland Scot Scot- land since 1560 Increasing from front 2350 long tons in 1871 1571 to long tons In 1917 The Scotch are mined underground J b by methods similar to those used for coal mining In this country countr Tho rho yield of or Scotch shale averages a about 24 G United States gallons gallons gallons gal gal- lons of crude oil and pounds ur of ammonium per short tin Un Tho The yield of gas at per short ton reported varies arles somewhat but on time the aVCI- aVCI u ula la is about 10 U LJ D. t. t u u. u per pel cubic foot fooL Tho The products obtained by refining the Scotch cotch crude oil Include motor gasoline Illuminating oils gas Jal und and tu fuel l loll oil oll oils lubricating oils wax and antI coke The production lon fon of or shale bale oil In Increased increased In- In creased In Scotland from bar barrels rols In 1871 to barrels In 1916 while at t the tho same time ammonium sulphate production Increased from 2350 tons to tons Up to tho the present more than companies have hao been organized In the time United States for tor dc developing c doping or sellIng selling selling sell sell- I ing stock In oil shale enterprises |