Home › Top 4 Gas Stations in Palmyra, Missouri Find best Gas Stations in Palmyra, Missouri, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Shell - Palmyra (MO 63461) US, Palmyra, MO 63461100 N Main St Conoco - Palmyra (MO 63461) US, Palmyra, MO 634611409 S Main St Ayerco - Palmyra (MO 63461) US, Palmyra, MO 634617233 Missouri MM Phillips 66 - Palmyra (MO 63461) US, Palmyra, MO 63461887 Marion City Rd