Superior Energy Services, Inc. (SPN: OTCQX U.S.) | Symbol Change Fri, Sep 18, 2020 12:00 -
Superior Energy Services, Inc. (
SPN : OTCQX U.S.) - Symbol Change - The symbol, SPN, is no longer a valid symbol for Superior Energy Services, Inc.. As of Fri, Sep 18, 2020, the new trading symbol is SPNX. You may find a complete list of symbol changes at
otcmarkets.com .