NEW ORLEANS (AP) — Federal prosecutors have secured new indictments against a former BP engineer and a former BP executive charged separately with obstructing investigations of the company's 2010 oil spill in the Gulf of Mexico.

Wednesday's indictment of former BP executive David Rainey adds language alleging that he knew of the pending congressional investigation he is charged with obstructing. A federal judge had dismissed the obstruction of Congress charge from Rainey's original indictment, in part because it didn't contain that allegation.

A grand jury also issued a new indictment Wednesday against former BP engineer Kurt Mix, who is charged with deleting text messages about the company's response to the spill. The new indictment makes few substantive changes to the version it replaces and doesn't add any new counts.