UPDATE 1-Patterson-UTI Energy posts bigger-than-expected loss as expenses double

double@ (Adds details on Oklahoma drilling accident, analysts estimates)

Feb 8 (Reuters) - Oil and gas driller Patterson-UTI Energy Inc, dealing with the fallout of a drilling accident that killed five workers last month, reported a bigger-than-expected quarterly loss on Thursday as expenses more than doubled.

The accident at an oil well in Oklahoma in January has shone a light on the company's safety record and on safety in the shale industry in general as President Donald Trump seeks to boost U.S. oil output.

The accident is still being investigated and Patterson CEO Andy Hendricks did not give any update on Thursday.

"There is nothing more important to us than the safety of our employees and others we partner with in the field," he said in a statement.

On a per share basis, Houston-based Patterson posted a loss of 10 cents as expenses jumped to $809 million from $360.1 million. Analysts were expecting a loss of 8 cents as per Thomson Reuters I/B/E/S. (Reporting by Ahmed Farhatha in Bengaluru; Editing by Saumyadeb Chakrabarty)