LSB Industries Inc.(Oklahoma City) announced first-quarter 2012 net sales were up $12.7 million to $190.2 million. Net sales totaled $177.5 million during the first quarter of 2011.

AAON Inc. (Tulsa, Okla.) announced its 2012 operating results through March 31 as $65 million in sales, with $4.6 million in reported net income. Sales revenue was up 8 percent from $59.9 million in sales, and $3.7 million in net income over the same time period a year ago.

Publication date: 6/4/2012