There are significant financial incentives for working with heavier petroleum streams, including heavier crudes being produced and transported by pipeline, topped crudes with light ends removed or heavy petroleum fractions, which result from refinery processing. However, high viscosity, high pour point material possesses significant risk for pipeline plugging when moved into and out of storage. A pour point depressant can help mitigate that risk by ensuring pumpability, allowing heavier material to be moved and stored while decreasing or eliminating the use of cutter stocks.