Centrica PLC 1H net profit down 89 pct

British energy company Centrica PLC said Thursday that net profit fell by 89 percent in the first half compared to a year earlier, when profit was boosted by a large one-time gain.

For the six months to June 30, Centrica reported a net profit of 202 million pounds ($332 million) compared to 1.8 billion pounds a year earlier.

Operating profit at the company, whose operations include British Gas, was down 5 …