An undisclosed buyer acquired a 12.5% working interest In ten sections In Permian Basin from Yuma Energy, Inc. (AMEX:YUMA) for $0.5 million in December 2017. An undisclosed buyer completed the acquisition of a 12.5% working interest In ten sections In Permian Basin from Yuma Energy, Inc. (AMEX:YUMA) in December 2017.