MISO Plans Operations Center, Up to 50 Jobs in Little Rock by Arkansas Business Staff Posted 5/8/2013 11:01 am Updated 2 years ago MISO, a regional power transmission provider that boasts Entergy Arkansas among its members, is planning an operations center in Little Rock that could employ up to 50 people. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.