Hvide Marine Incorporated, Fort Lauderdale, Fla., reported a net loss of $23.7 million for the quarter ended June 30, 1999. These results reflect a loss of $14.1 million on the sale of assets. Last year, Hvide held a net income of $9.5 million. Revenues of $78.3 million for the 1999 quarter were down 28 percent from the previous year's figure of $109.3 million, which reflects the falloff in day rates and utilization for the company's fleet of offshore energy support vessels.