On July 1, FERC issued an order affirming the claim by the Midwest Independent System Operator (MISO) that the terms of a joint operating agreement regarding the sharing of available transmission capacity with the neighboring Southwest Power Pool (SPP) must remain in effect even if Entergy Arkansas, an Entergy subsidiary, is successful in its plan to join MISO. Entergy, is now one step closer to integrating with a Midwest regional grid operator over the objections of the neighboring entity responsible for grid management in the Southwest. The two regional grid operators have been competing for some time to persuade Entergy and its subsidiaries to become members of their respective grid operations.