SandRidge Energy Inc., Oklahoma City, (NYSE: SD) announced on Sept. 28 that it has completed its previously announced joint venture transaction with an affiliate of Atinum Partners Co., Ltd., a leading investment firm located in the Republic of Korea.

At closing, SandRidge received approximately $250 million in cash and transferred to Atinum an undivided 13.2% non-operated working interest in SandRidge's original Mississippian play. SandRidge will receive an additional $250 million in the form of a drilling carry.