Latest: Thunder, NBA mourn death of McClendon

The wreck happened a day after a federal grand jury indicted McClendon for allegedly conspiring to rig bids for oil and natural gas leases in northwest Oklahoma.

Police say former Chesapeake CEO Aubrey McClendon wasn't wearing a seat belt when his SUV slammed into a concrete embankment and burst into flames in Oklahoma City, killing him.

Oklahoma City Police Capt. Paco Balderrama also says McClendon was traveling above the speed limit of 50 mph when his sport utility vehicle crossed the center line and crashed Wednesday.

The crash happened a day after a federal grand jury indicted McClendon for allegedly conspiring to rig bids for oil and natural gas leases in northwest Oklahoma.

An Oklahoma City police spokesman says a former energy executive was speeding and "drove straight into the wall" when he was killed in a single-car crash.

Oklahoma City police say Aubrey McClendon, a natural gas industry titan who was indicted on Tuesday by a federal grand jury, has been killed in a fiery single-car crash in Oklahoma City.

Police Sgt. Ashley Peters says 56-year-old McClendon was the only occupant in the sport utility vehicle when it slammed into a concrete bridge pillar shortly after 9 a.m. Wednesday.