AAON modified its $30 million credit agreement with the Bank of Oklahoma, extending the maturing date to July 27, 2018.

Additionally, the amendment eliminates the covenant requirement for the company’s working capital being at or above $40 million and modifies the company’s tangible net worth covenant requirement from $95.0 million to $125 million.

Oklahoma-based AAON designs, manufactures and sells semi-custom heating, ventilation and air conditioning equipment for commercial and residential use.