Transport compositions include a crude oil composition and a solvent formulation including at least one terpene component. In some embodiments, the terpene is a monoterpene. In some embodiments, the terpene is pure gum turpentine, oil of turpentine, a component of turpentine, or a combination of these. Addition of a minimal amount of solvent formulation to the crude oil composition raises the flash point of the mixture, preferably to a predetermined value, which may be in the range of 100 to 120° F., in the range of 120 to 140° F., above 140° F., or above 170° F., depending on the application. The amount of terpene is preferably in the range about 0.005 to about 5 percent by total weight of the transport composition. Methods of raising the flash point of a crude oil composition and methods of increasing the safety of handling a crude oil composition are also disclosed.