Kaiser Permanente Hawaii earned $1 million in the second quarter, after gaining more than 3,000 members in the first six months of the year.

That reverses a year-earlier loss of $800,000 in the quarter ended June 30.

The state’s largest health-maintenance organization collected $295.2 million in premium revenue, compared with the $285.6 million it generated in the year-ago period. It spent $294.4 million on health care benefits, up from $287.6 million.

The HMO posted $800,000 in operating income, turning around a $2 million loss in the second-quarter of 2013. Investment income of $200,000 boosted Kaiser’s earnings to $1 million, or 0.3 percent of revenue.