The incident happened Wednesday afternoon in the 7000 block of Winfield Road where a man was working on an oil rig when the back of it fell on him, according to a tweet from Sheriff Ed Gonzalez.
A Harris County sergeant on the scene told ABC13 the man who died was in his late 30s.
Authorities also said there were about six or seven people working on the site when the accident happened. A second man was injured in the accident. He was taken to the hospital with a shoulder injury.
The investigation into how this happened is ongoing.