Brad Russell, an attorney for Heartland Midwest, released a photocopied application for a permit Wednesday.
A Missouri Gas Energy official said previously that Heartland Midwest reported hitting a natural gas line with an underground borer more than an hour before last week's explosion. The blast and ensuing fire leveled JJ's restaurant near the Country Club Plaza. One person was killed and 15 others were injured.
City officials said Monday that Heartland sought permission the day after the blast.