English to Arabic Other Petroleum Eng/Sci Unit of measurement

This term was mentioned in an intoruction to a new Canadian energy company in the following context:
"Swan Hills Synfuels represents an investment opportunity in a major new unconventional resource play in Alberta, with reserves potential in the billions-BOE scale. With the known and secure nature of the coal resource base under the company’s exclusive control, this is truly an “energy manufacturing” resource play, with no concepts of reservoir performance, reserves uncertainty, or decline. The company’s secure low cost feedstock drives compelling favourable economic returns and substantial margins."