Reckoning Arrives for Cash-Strapped Oil Firms Amid Bank Squeeze

Lenders are preparing to cut the credit lines to a group of junk-rated shale oil companies by as much as 30 percent in the coming days, dealing another blow as they struggle with a slump in crude prices, according to people familiar with the matter.

Sabine Oil & Gas Corp. became one of the first companies to warn investors that it faces a cash shortage from a reduced credit line, saying Tuesday that it raises “substantial doubt” about the company’s ability to continue as a going concern. About 10 firms are having trouble finding backup financing, said the people familiar with the matter, who asked not to be named because the information hasn’t been announced.