HOUSTON , April 28, 2021 (GLOBE NEWSWIRE) -- Oil States International, Inc. (NYSE: OIS) reported a net loss of $15 .8 million, or $0 .26 per share, for the first quarter of 2021, which included non-cash fixed asset impairment charges of $0 .7 million ( $0 .5 million after-tax, or $0 .01 per share),