U.S. oil producers are issuing new shares of stock at the fastest pace in more than a decade, looking to investors for a cash lifeline to pay down debt and keep drilling as crude prices continue to sink. Tapping equity markets has become the best option for companies such as Dallas-based RSP Permian Inc., which announced March 17 it’s seeking to raise as much as $232 million by selling additional shares. Calgary-based Encana Corp. and Noble Energy Inc. of Houston also have issued shares in the past two months to reduce debt. That brings funds raised in the first three months of the year to about $8 billion, more than 10 times the total in the same period last year. As the continued slide in oil prices further crimps cash flows, banks are pressuring these companies to shore up their capital and reduce debt to lower servicing […]