The telephone lines have been ringing at Adler Tank Rentals in Texas as oil companies found a new use for steel tanks that had been left idle when shale producers stopped drilling – they want to use the tanks to store some of an oil glut that has overwhelmed the market and flipped U.S. crude prices negative for the first time. Hundreds of millions of barrels of crude have gushed into storage worldwide in the past two months as the coronavirus-related lockdowns wiped out around a third of global oil demand. With oil depots that normally store crude oil onshore filling to the brim and supertankers mostly taken, energy companies are desperate for more space. The alternative is to pay buyers to take their U.S. crude after futures plummeted to a negative $37 a barrel on Monday. A topsy-turvy market that has oil prices for […]