The board of directors at SandRidge Energy Inc. (NYSE: SD) approved a buyback program for up to $200 million common shares, the company said Sept. 4.

Under the program, the buyback will be both public and private, and there is no fixed termination date, the company said.

Payments for repurchased shares will be funded through working capital, Sandridge said.

Oklahoma City-based SandRidge Energy Inc. explores and produces domestic natural gas and oil.