 Trillion Energy International Inc CSE:TCF OTCMKTS:TCFF FRA:3P2N has announced sale price increases for both its oil and natural gas produced in Turkey, which is having a positive impact on revenues and net backs. The Vancouver-headquartered company said, effective July 1, 2021, natural gas prices increased by 20 to almost 6 per thousand cubic feet mcf, reaching pre-coronavirus COVID-19 levels. 