Some 75 homes evacuated.
Missouri Republican calls Keystone an opportunity to drive the economy and decrease reliance on foreign energy.
Pettis County Sheriff Kevin Bond said the explosion could be seen 12 miles away.
The coalition says it was improperly denied records about Canadian company Enbridge’s plan to build a 600-mile oil pipeline from Illinois to Oklahoma.
The pipeline was carrying a mixture of ethane and propane from Iowa City, Iowa, to a petrochemical plant in Morris, Ill., 62 miles southwest of Chicago.
A resident near Doniphan, Mo., found oil leaking in his yard Tuesday. All told, about one barrel roughly 42 gallons of crude oil leaked from the Pegasus pipeline.
Authorities are working to clean up an oil spill in central Arkansas after a pipeline ruptured.
The resolution approved by the state House urges President Barack Obama to approve an application for a pipeline from TransCanada.