Gulfport Energy Corp. (GPOR: Pink Current) | Symbol Change Fri, Nov 27, 2020 12:00 - Gulfport Energy Corp. ( GPOR : Pink Current) - Symbol Change - The symbol, GPOR, is no longer a valid symbol for Gulfport Energy Corp.. As of Fri, Nov 27, 2020, the new trading symbol is GPORQ. You may find a complete list of symbol changes at otcmarkets.com .