DALLAS, Dec. 2, 2015 /PRNewswire/ — NexPoint Capital, Inc. (the “Company”), a non-traded publicly registered business development company and affiliate of Highland Capital Management, L.P., today announced that it will commence a voluntary tender offer on or about December 2, 2015 (the “Tender Offer”) for up to 2.5% of its outstanding common stock (“Shares”) at a…