Raven Industries Inc. announced Mar. 1 that its Engineered Films division, which manufactures geomembrane containment liners, has tripled production capacity at its Midland, Texas, facility. Raven geomembranes are used to line frac pits, secondary containment systems, reserve ponds, and rig-site pad liners employed during the drilling process in the Permian Basin and other shale plays [...]