New Technology Key to Exploiting Brown Dense Formation by Luke Jones Posted 9/10/2012 12:00 am Updated 6 years ago South Arkansas is no stranger to oil development. El Dorado was born out of the business, but it's been a long time since oil has brought real prosperity to the region. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.