Abstract: At 4:30 p.m. on April 14, 2007, Employee #1 was working as a floor hand on an oil well production rig. He had been employed by the employer for approximately six years. Employee #1's supervisor was at the rig controls, operating the brake and directing the work. Employee #1 was on the floor, with a coworker who was on the opposite side. Employee #1 bent down to remove the slips and lost his balance. He put his hand on the sub-base to maintain his balance, with the stripper still in place. When his hand contacted the sub-base, the stripper fell, crushing and amputating his left thumb. The rig was an Ideco Rambler Rig (serial number: #1046).