This article, written by Technology Editor Dennis Denney, contains highlights of paper SPE 75189, "Effect of Capillary Pressure, Salinity, and Aging on Wettability Alteration in Sandstones and Limestones," by Sruti Chattopadhyay, U. of Connecticut at Storrs, and Vivek Jain, SPE, and M.M. Sharma, SPE, U. of Texas at Austin, originally presented at the 2002 SPE/DOE Improved Oil Recovery Symposium, Tulsa, 13-17 April.