 OVERLAND PARK, Kan.--BUSINESS WIRE--The combined 2021 Semi-Annual stockholders report for TYG, NTG, TTP, NDP, TPZ and TEAF has been released. This report is available online at cef.tortoiseecofin.com. Please call 866 362-9331 or email to request hard copies of this report free of charge. Additionally, the unaudited balance sheet information and asset coverage ratio updates for TYG, NTG, TTP, NDP, TPZ and TEAF as of July 31, 2021 are as follows: Tortoise Energy Infra 