3 workers killed in Texas oil field rig explosion

An oil field rig has exploded in Texas, killing three workers.
Investigator Dusty Kilgore said the accident happened Tuesday morning at a well site near Rankin in West Texas.
Kilgore says one other person working at the well survived the blast and was not taken to a hospital.
He did not release the names of those killed.
The well is owned by Parsley Energy of Midland. Kilgore said a pulling unit crew was working at the site when the explosion happened, but he provided no other details.