<p>This reprint is derived from the Special Isue New Studies of Polymer Surfaces and Interfaces of <em>Polymers</em> and contains a total of 10 papers. These papers focus on the application of polymers in the field of enhanced oil recovery (EOR) mainly revealing EOR mechanisms of different types of polymer applications&nbsp;and physical and chemical reactions of the surface/interface. The papers in this reprint are contributed by academics from different countries and universities and they&nbsp;present recent&nbsp;research hotspots and progress&nbsp;related to&nbsp;this topic. This reprint can provide readers with knowledge&nbsp;on good theoretical and experimental methods.</p>