House Natural Resources Committee Chairman Doc Hastings (R-Wash.) on Tuesday subpoenaed the Interior Department for documents about a 2010 report that erroneously suggested that outside engineers had endorsed a deepwater drilling freeze following the BP oil spill.

The subpoena sets a deadline of April 10 for Interior to turn over documents to the panel.

“President Obama pledged unprecedented transparency, and it’s regrettable that a Congressional subpoena is necessary to obtain documents pertaining to the administration’s report that recommended a six-month drilling moratorium in the Gulf of Mexico,” Hastings said in a statement Tuesday.