"HOUSTON - An investigation into an explosion at an Oklahoma natural gas drilling rig that killed five workers last year faulted inadequate training and equipment and called for new regulations, the U.S. safety regulator said on Wednesday.

The Pryor Trust gas well in Pittsburgh County, Oklahoma was operated by Red Mountain Energy LLC and workers employed by Houston-based drilling contractor Patterson-UTI Energy Inc.

“The lack of effective safety management at this well resulted in a needless catastrophe,” said Kristen Kulinowski, interim executive of the Chemical Safety Board. "

Collin Eaton reports for Reuters June 12, 2019. [2]