The Smackover Formation, a Jurassic system, with a carbonate petroleum source rock, extends over several states including: East Texas, South Arkansas, North Louisiana, Mississippi, South Alabama, and West Florida. The Smackover Oil Field was discovered in Union County, AR, in April 1922 (Weeks, 1938). Later, in 1936 Phillips Petroleum and Company, successfully drilled the first limestone discovery in the field, discovering a new formation to which the field would lend its name (Weeks, 1938). The Petroleum System- From Source to Trap’s defines a petroleum system as the “essential elements and processes, along with genetically related hydrocarbons that occur in petroleum shows, seeps, and accumulations whose provenance is a single active pod
