TULSA, Okla. (AP) _ Unit Corp. (UNT) on Monday reported a loss of $335 million in its fourth quarter.

The Tulsa, Oklahoma-based company said it had a loss of $6.33 per share. Losses, adjusted for asset impairment costs and non-recurring costs, were 67 cents per share.

The oil and natural gas contract drilling company posted revenue of $164.4 million in the period.

For the year, the company reported that its loss widened to $553.9 million, or $10.48 per share. Revenue was reported as $674.6 million.

In the final minutes of trading on Monday, the company's shares hit 25 cents. A year ago, they w...