It was stated by diamonds, and above, that LOC was used in the First Gulf War to clean up the oil spills caused in the conflict. Another major use for L.O.C. is a "wetting" agent for Agricultural spay, that is adding a surfactant  that is a soap reduces the surface tension of the water. This results in the water wetting the leaf instead of sitting a bubble on the surface. This is especially important as leaves often have a waxy surface to facilitate the water running off.