Sandridge Energy Approaches Important 18-Month Resistance Jun 20, 2014 - 1:35 PM EDT SandRidge Energy, Inc. (SD) continues to climb sharply off of its June 11 pullback low at 6.65 to today’s high at 7.43, which is nearing key channel resistance between 7.52 and 7.67. I am raising my stop to 7.23 from 7.10.