When it comes to manufacturing ink, crude oil and natural gas are the critical building blocks for the feedstocks that are essential for resins, waxes, solvents, varnishes and countless other ingredients. The price of crude oil has been soaring in recent years. There was a time when industry executives looked at the higher prices and believed these costs were unsustainable. Back in February 2003, for example, crude oil hit $35 a barrel, and ink manufacturers were not sure how they would cope...